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A + E Group, Inc. Main 140 Maffet Street Wilkes-Barre , PA

(005645) 18705 Phone: (570) 822-8500 x121

Email: [email protected]

FAX: (570) 822-0297

A & A Sales Associates, LLC Main 1258 Paso Fino Dr Warrington , PA

(004952) 18976-1929 Phone: (215) 852-9651


FAX: (215) 538-5002

A TO U Services, Inc Main P.O. Box 1164 Sharon Hill , PA

(007330) 19079 Phone: (610) 532-8825


FAX: (610) 586-9870

A V T, INC Main 3075 WASHINGTON PIKE BRIDGEVILLE , PA

(001129) 15017 Phone: (412) 257-5077 x14


FAX: (412) 257-5078

A. Morton Thomas and Associates, Inc. Main 12750 Twinbrook Parkway Rockville , MD

(002584) 20852 Phone: (301) 881-2545


FAX: (301) 881-0814

Baltimore 2 East Read Street Baltimore , MD Laura Mehiel

21202 Phone: (410) 752-6552


FAX: (410) 752-6553

Delaware 200 Continental Drive Newark , DE Alex Meitzler

19713 Phone: (302) 737-1627


FAX: (302) 737-1628

A. Strauss-Wieder, Inc. Main 330 South Chestnut Street Westfield , NJ

(006764) 07090-1341 Phone: (908) 654-5144


FAX: (908) 654-5294

A.D. Marble & Company Main 375 East Elm Street Conshohocken , PA

(000083) 19428 Phone: (484) 533-2500


FAX: (484) 533-2599

Camp Hill 3913 Hartzdale Dr. Camp Hill , PA Pete Dodds

17011 Phone: (717) 731-9588 x22


FAX: (717) 731-1170

Owings Mills 10451 Mill Run Circle Owings Mills , MD Kristen Goddard

21117 Phone: (410) 902-1421


FAX: (410) 902-8856

Pittsburgh 1000 Gamma Drive Pittsburgh , PA Stephen J. Wiedemer, AICP

15238 Phone: (412) 968-5977


FAX: (412) 968-5978

Princeton 100 Overlook Drive Princeton , NJ Xavier Riva

21117 Phone: (484) 533-2568


FAX: (484) 533-2599

A.DiCesare Associates, P.C. Main 468 Post Road East Westport , CT

(003483) 06880 Phone: (203) 454-2824


FAX: (203) 454-1761

A.G. Consulting Engineering, PC Main 260W 35th Street New York , NY

(005199) 10001 Phone: (212) 268-0950


FAX: (212) 268-7497

A&A Consultants, Inc. Main 707 East Street Pittsburgh , PA

(000203) 15212 Phone: (412) 323-2200


FAX: (412) 323-2202

A&A Glove and Safety Company Main 20 Richey Avenue Collingswood , NJ

(006493) 08107 Phone: (856) 854-4357


FAX: (856) 854-6422

A-D Technologies, LLC Main 11400 Parkside Dr Knoxville , TN

(005276) 37934 Phone: (800) 321-7914


AATech Scientific Inc. Main 26302 Rte 11, No. 194 Evans Mill , NY

(002094) 13637 Phone: (877) 789-6333


FAX: (613) 789-5333

Abator Information Services, Inc. Main 2400 Ardmore Boulevard Pittsburgh , PA

(000967) 15221-5299 Phone: (412) 271-5922


FAX: (412) 271-5833

Abel Bainnson Butz, LLP Main 80 Eighth Avenue New York , NY

(006029) 10011 Phone: (212) 206-0630


FAX: (212) 645-0048

ABKAELIN, LLC Main 5 Marshall Road Pittsburgh , PA

(008282) 15214-2061 Phone: (412) 841-7260


ACA Engineering, Inc. Main 40 Western Ave Pittsburgh , PA

(004336) 15202 Phone: (412) 761-1990


FAX: (412) 761-1998

Branch 5020 Ritter Road Mechanicsburg , PA Gene Mattson

17055 Phone: (717) 691-7705


FAX: (717) 691-5499

Accumark, Inc. Main 9500 King Air Court Ashland , VA

(005173) 23005 Phone: (215) 369-3569


Accumark - PA Office 668 Stony Hill Road, #107 Yardley , PA Van A. Singer, PE

19067 Phone: (215) 369-3569


FAX: (804) 550-7742

Ackenheil Engineers, Inc. Main 1000 Banksville Road Pittsburgh , PA

(000074) 15216 Phone: (412) 531-7111


FAX: (412) 531-4334

Acker Associates, Inc. Main 1264 Church Street Moscow , PA

(003563) 18444-9454 Phone: (570) 842-9721


FAX: (570) 842-7537

Acme Utility Company Main 123 any road anytown , PA

(006576) 17777 Phone: (717) 783-9150


Acoustical Measurements Services, LLC Main 1305 Briargate Drive York , PA

(004559) 17404-9749 Phone: (717) 650-7476


Acrow Corporation of America Main 181 New Road Parsippany , NJ

(007101) 07054 Phone: (973) 244-0080


FAX: (973) 244-0085

ACT Engineers, Inc Main 1 Washington Blvd., Suite 3 Robbinsville , NJ

(003041) 08691-3162 Phone: (609) 918-0200


FAX: (609) 918-1411

ACT PA 43 East Marshall Street Norristown , PA Eric Rosina

19401 Phone: (215) 660-5077


Adams, Rehmann and Heggan Associates, Inc. Main 850 South White Horse Pike Hammonton , NJ

(004890) 08037-2019 Phone: (609) 561-0482


FAX: (609) 567-8909

Adcon Consultants, Inc. Main 2465 N. 50th Street Philadelphia , PA

(007406) 19131 Phone: (215) 877-8210


FAX: (215) 877-8150

ADDCO, Inc. Main 240 Arlington Ave E St. Paul , MN

(003919) 55117 Phone: (651) 488-8600


FAX: (651) 558-3600

Adsco Industrial Services Main 1235 J South Harrisburg St Harrisburg , PA

(003037) 17113 Phone: (717) 939-9795 x102


FAX: (717) 831-0074

Advance Testing Company, Inc. Main 3348 State Route 208 Campbell Hall , NY

(006286) 10916 Phone: (845) 496-1600


Advanced Asphalt Technologies, LLC Main 108 Powers Court Sterling , VA

(000032) 20166-9321 Phone: (703) 444-4200


FAX: (703) 444-4368

Advanced Drainage Systems, Inc. Main 4640 Trueman Blvd. Hilliard , OH

(003651) 43026-2438 Phone: (614) 658-0050


FAX: (614) 658-0203

Advanced GeoServices Corp. Main 1055 Andrew Drive West Chester , PA

(003421) 19380-4293 Phone: (610) 840-9100


FAX: (610) 840-9199

Advanced Infrastructure Design, Inc. Main 1 Crossroads Drive Hamilton , NJ

(002622) 08691 Phone: (609) 838-2216


FAX: (609) 586-1301

Advanced Integration Group, Inc. Main 1 McCormick Road McKees Rocks , PA

(000641) 15136 Phone: (412) 722-0065 x222


FAX: (412) 722-0066

Advanced Technology Solutions Inc. Main 1525 Oregon Pike, Ste202 Lancaster , PA

(000169) 17601-4372 Phone: (717) 399-7007

Email: apal @geographIT.com

FAX: (717) 399-7015

Advantage Engineering Associates, P.C. Main 101 Interchange Plaza Cranbury , NJ

(002993) 08512 Phone: (609) 619-3490 x111


FAX: (609) 619-3491

Advantage Engineering, LLC Main 20 South 36th Street Camp Hill , PA

(001166) 17011 Phone: (717) 761-8800


FAX: (717) 761-9070

Advantage Engineers, LLC Main 910 Century Drive Mechanicsburg , PA

(006340) 17055 Phone: (717) 458-0800


FAX: (717) 458-0801

Allentown, PA 6520 Stonegate Drive #110 Allentown , PA Darrick Kreischer

18106 Phone: (610) 366-7120

Mt. Laurel, NJ 520 Fellowship Road Mount Laurel , NJ Tony Digneo

08054 Phone: (856) 231-0800

Advantage Environmental Consultants, LLC Main 3101 Mount Carmel Avenue Glenside , PA

(002617) 19038 Phone: (267) 287-0381


FAX: (267) 287-0386

AECOM Technical Services, Inc. Main 555 South Flower Street Los Angeles , CA

(000324) 90071 Phone: (215) 789-2157


FAX: (215) 735-0883

Harrisburg 100 Sterling Parkway Mechanicsburg , PA Neil Shemo, PE

17050 Phone: (717) 790-3463


FAX: (717) 795-8280

Horsham 125 Rock Road Horsham , PA Brett Canimore, PE

19044 Phone: (215) 315-4219


FAX: (215) 315-4151

New York One World Financial Center New York , NY Nicholas Spaventa

10281 Phone: (212) 798-8500


FAX: (212) 798-8501

Philadelphia 1700 Market Street Philadelphia , PA Bijan Pashanamaei, PE

19103 Phone: (215) 789-2150


FAX: (215) 735-0883

Pittsburgh Gulf Tower Pittsburgh , PA Bijan Pashanamaei, PE

15219 Phone: (412) 395-8888


FAX: (412) 395-8897

State College 315 S. Allen Street State College , PA Jennie Granger, AICP

16801 Phone: (814) 278-1266


FAX: (814) 235-1495

Trevose 4 Neshaminy Interplex Trevose , PA Victor Velez

19053 Phone: (215) 244-7100


FAX: (215) 244-7178

AECOM USA, Inc. Main 605 Third Avenue New York , NY

(000133) 10158 Phone: (215) 789-2157


FAX: (215) 735-0883

Harrisburg 2040 Linglestown Road Harrisburg , PA Neil Shemo, PE

17110-9568 Phone: (717) 671-6985 x13


FAX: (717) 671-6987

Horsham Office 723 Electronic Drive Horsham , PA Glen Vasquez, P.E.

19044 Phone: (215) 657-3475


FAX: (215) 657-3479

Philadelphia Office 1700 Market Street, Suite 1600 Philadelphia , PA Timothy Gunner, P.E.

19103 Phone: (215) 789-2118


FAX: (215) 735-0882

Pittsburgh Office Four Gateway Center Pittsburgh , PA Bijan Pashanamaei, P.E.

15222-1222 Phone: (412) 395-8888


FAX: (412) 395-8897

State College 315 South Allen Street State College , PA Jennie Granger

16801 Phone: (814) 278-1266


AECOM, Inc. Main Four Gateway Center Pittsburgh , PA

(003871) 15222-1220 Phone: (412) 261-2910 x209


FAX: (412) 765-1421

AECOM Environment 125 Rock Road Horsham , PA Sonya Ward

19044-2310 Phone: (215) 757-4900 x238


FAX: (215) 757-3904

Aegis ITS, Inc. Main 3360 E. La Palma Avenue Anaheim , CA

(008331) 92806 Phone: (714) 238-9277


FAX: (714) 630-1973

AEON Geoscience, Inc. Main AEON Geoscience, Inc. Havertown , PA

(001394) 19083-3922 Phone: (610) 449-9090


FAX: (610) 449-9090

Aerial Data Service, Inc. Main 8301 E. 51st St. Tulsa , OK

(007294) 74145 Phone: (918) 622-4144


FAX: (918) 622-4119

Aero-Metric, Inc. Main 45180 Business Court Dulles , VA

(000148) 20166-6706 Phone: (703) 471-4510


FAX: (703) 471-6810

AeroComm, Inc. Main 464 Hudson Terrace Englewood Cliffs , NJ

(000753) 07921 Phone: (201) 227-0066 x150


FAX: (201) 227-0067

Aerocon Photogrammetric Services, Inc Main 4515 Glenbrook Road Willoughby , OH

(001192) 44094-8215 Phone: (440) 946-6277


FAX: (440) 946-2646

Aerotek, Inc. Main 7301 Parkway Drive Hanover , MD

(005267) 21076 Phone: (410) 694-5100


Affiliated Services International, LLC Main 647 Philadelphia Street Indiana , PA

(006558) 15701-3923 Phone: (814) 846-4964


FAX: (814) 948-7500

AFS Geo Consultants, LLC Main 6299 Shiplett BLVD Burke , VA

(008101) 22015 Phone: (571) 762-8551


FAX: (703) 764-0508

AG Aegis Company, Inc. Main 637 North Center Street Corry , PA

(006759) 16407 Phone: (814) 664-8103 x248


FAX: (814) 664-9689

Agnelo Gomes D/B/A Agnelo Gomes Associates Main 1207 Locust Street Philadelphia , PA

(003445) 19107 Phone: (215) 735-9644


FAX: (215) 735-9706

AGTEK Development Company Inc Main 396 Earhart Way Livermore , CA

(004956) 94551 Phone: (925) 606-8197


FAX: (925) 606-9320

aguirre design network, inc. Main 2350 Barrister Drive York , PA

(000953) 17404 Phone: (717) 779-0950


FAX: (717) 779-0632

AGX, Inc. Main 207 Pine Creek Road Wexford , PA

(005438) 15090-9228 Phone: (724) 934-4249


FAX: (724) 934-5677

AI Engineers, Inc. Main 919 Middle Street Middletown , CT

(005342) 06457 Phone: (860) 635-7740 x104


FAX: (860) 635-7312

Air/Compliance Consultants, Inc. Main 1050 William Pitt Way Pittsburgh , PA

(001119) 15238 Phone: (412) 826-3636


FAX: (412) 826-3640

AK Environmental, LLC Main PO Box 7853 West Trenton , NJ

(003188) 08628 Phone: (609) 771-1730


FAX: (609) 771-1731

AK Environmental, LLC 429 15th Street New Cumberland , PA Patricia Riley

17070-1314 Phone: (717) 645-9670


FAX: (717) 307-3463

Akens Engineering Associates, Inc. Main 219 East Main Street Shiremanstown , PA

(000294) 17011-6315 Phone: (717) 975-9933


FAX: (717) 975-5507

Akhilesh Kumar d/b/a Akhilesh Kumar Main 4949 Liberty Lane, Suite 122 Allentown , PA

(007987) 18106 Phone: (610) 398-7474


FAX: (610) 366-1095

AKM Construction Services, Inc. Main 350 South Governor Printz Blvd Lester , PA

(003061) 19029 Phone: (610) 362-0210


FAX: (610) 362-0211

AKM Constructors LLC Main 2388 Oakview Dr. Pittsburgh , PA

(000048) 15237 Phone: (412) 400-7923


AKM Constructors LLC Main 2388 Oakview Drive Pittsburgh , PA

(002327) 15237-6626 Phone: (412) 400-7923


FAX: (412) 367-4723

AKRF, Inc. Main AKRF, Inc. Mount Laurel. , NJ

(003335) 08054 Phone: (856) 797-9930 x1625


FAX: (856) 797-9932

Headquarters office 440 Park Avenue South New York , NY Ed Applebome

10016-8022 Phone: (646) 388-1716


FAX: (212) 447-5546

AL Engineering & Design, LLC Main 315 Greenwood Ave Jenkintown , PA

(004306) 19046 Phone: (215) 740-7428


Alan C. Gage d/b/a Gage Stone Products Inc. Main RR1 Box 23 Rushville , PA

(003466) 18839 Phone: (570) 934-2836


FAX: (570) 934-2863

ALCM, LLC Main 321 Cobble Lane Belle Vernon , PA

(003761) 15012 Phone: (724) 929-8056


FAX: (724) 929-9480

Alder Run Engineering, LLC Main 107 Coal Street Osceola Mills , PA

(003821) 16666 Phone: (814) 339-6998


FAX: (814) 339-6266

Alfred Benesch and Company Main 400 One Norwegian Plaza Pottsville , PA

(000010) 17901-1090 Phone: (570) 622-4055


FAX: (570) 622-1232

alfred benesch & company 840 Hamilton Street Allentown , PA George M. Horas, P.E.

18101 Phone: (610) 439-7066


FAX: (610) 439-6349

All Access Rigging Co. Main 162c Hufnagel Dr Clinton , PA

(004522) 15026 Phone: (866) 643-8303


FAX: (724) 899-2280

All Land Services, Inc. Main 75 South Second Street Chambersburg , PA

(006522) 17201 Phone: (717) 264-0804


FAX: (717) 264-1321

All Points Safety-General Partnership Main 328 Central Ave. Tiltonsville , OH

(004683) 43963 Phone: (304) 839-6500


All Testing Services, Inc. Main 1912 D Philadelphia Ave Chambersburg , PA

(005305) 17201 Phone: (717) 263-2527


FAX: (717) 263-3273

Allegheny Asbestos Analysis, Inc. D/B/A Global Environmental Management Main 416 Anthony St Carnegie , PA

(003151) 15106 Phone: (412) 278-5400 x202


FAX: (412) 278-5404

Allegheny College - The Center for Economic and Environmental Development (CEED) Main 520 North Main Street Meadville , PA

(004081) 16335 Phone: (814) 332-3379


FAX: (814) 332-2789

Allegheny Professional Services, LLC Main 24378 Gravel Run Road Cambridge Springs , PA

(006521) 16403 Phone: (814) 337-1122


FAX: (814) 398-4205

Allenfield Solutions Main 411 Blacklatch Lane Camp Hill , PA

(001934) 17011 Phone: (717) 232-0401


FAX: (717) 232-0402

Alliance Environmental Services, Inc. Main 1414 North Cameron Street Harrisburg , PA

(000156) 17103-1012 Phone: (717) 233-2400


FAX: (717) 233-2402

Alliance Transportation Group, Inc Main 3826 Pamay Drive Mechanicsburg , PA

(004330) 17050-7677 Phone: (717) 695-2234


FAX: (717) 695-2234

ALLIED ENGINEERING-CONSULTING SERVICES Main 1018 MANSION RD DREXEL HILL PA 19026 LAURYS STATION , PA

(000343) 18059-1805 Phone: (610) 262-5623


FAX: (610) 262-5077

Allstate Transportation Company, Inc. Main 800 West Olney Avenue Philadelphia , PA

(004208) 19120 Phone: (610) 659-3646


FAX: (610) 272-8167

Alpha Consulting Engineers, Inc. Main 115 Limekiln Road New Cumberland , PA

(003995) 17070 Phone: (717) 770-2500


FAX: (717) 770-2400

Alpha Corporation Main 21351 Ridgetop Circle Dulles , VA

(000365) 20166 Phone: (410) 646-3044


FAX: (410) 646-3730

Baltimore Office 1800 Washington Blvd. Baltimore , MD Callie Geller

21230 Phone: (410) 646-3044


FAX: (410) 646-3730

Miami 5757 Blue Lagoon Drive Miami , FL Jim Thompson

33126 Phone: (305) 269-7917

FAX: (305) 269-7927

Norfolk Office 101 West Main Street Norfolk , VA Dave Tollaksen

23510 Phone: (757) 533-9368


FAX: (757) 533-9432

Pennsylvania 120 Jug Road York , PA W. Preston Davis, P.E.

17404 Phone: (443) 891-4383

Winchester 609 Cedar Creek Grade Winchester , VA Mike Damron

22601 Phone: (540) 723-0704

FAX: (540) 723-0168

Alternative Environmental Solutions, Inc. Main 480 New Holland Ave. Lancaster , PA

(001590) 17602 Phone: (717) 517-5000


FAX: (717) 517-5004

Alvi Associates, Inc. Main 110 West Road, Suite 410 Towson , MD

(005828) 21204-2364 Phone: (410) 321-8877 x125


FAX: (410) 321-8970

AMEC Environment & Infrastructure, Inc. Main 502 West Germantown Pike Plymouth Meeting , PA

(001973) 19462 Phone: (724) 940-4200 x222


FAX: (724) 940-4205

Plymouth Meeting, Pennsylvania One Plymouth Meeting Plymouth Meeting , PA Brian Sariano

19462-1308 Phone: (610) 828-8100 x126


FAX: (610) 828-6700

Amercom Corporation Main 1259 Route 46 East, Building #1 Parsippany , NJ

(000272) 07054 Phone: (973) 402-6111 x101


FAX: (973) 402-0611

American Acquisition Group, LLC Main 5600 Mariner Street Tampa , FL

(004815) 33609-3443 Phone: (813) 287-8191


FAX: (813) 287-8197

American Cast Iron Pipe Company Main PO Box 2727 Birmingham , AL

(006575) 35202-2727 Phone: (612) 220-9734


American Civil Construction LLC Main 6956 North Clifton Road Frederick , MD

(004360) 21702 Phone: (301) 371-0137


FAX: (301) 371-0139

American Concrete Pavement Association -Pennsylvania Chapter Main 800 N. Third Street Harrisburg , PA

(003678) 17102-2025 Phone: (717) 441-3506


FAX: (717) 441-3507

ACPA Pennsylvania Chapter -West 7085 Highlands Creek Drive Bridgeville , PA Mark B. Snyder

15017-3440 Phone: (412) 221-8450


FAX: (412) 221-0409

American Consulting Engineers, Inc. Main 4949 Liberty Lane, Suite 122 Allentown , PA

(000078) 18106-0194 Phone: (610) 398-7474


FAX: (610) 366-1095

American Council of Engineering Companies of Pennsylvania (ACEC/PA) Main 800 North Third Street Harrisburg , PA

(000393) 17102 Phone: (800) 651-1946


FAX: (800) 651-1947

American Engineers Group, LLC Main 1950 BUTLER PIKE #229 CONSHOHOCKEN , PA

(006453) 19428 Phone: (484) 971-6895


FAX: (610) 630-8585

American Geotech, Inc. Main 1801 Penn Ave Reading , PA

(000222) 19609 Phone: (610) 670-9055


FAX: (610) 678-2719

American Geotechnical & Environmental Services, Inc. Main Southpointe Business Park Canonsburg , PA

(000025) 15317-8533 Phone: (724) 916-0300 x728


FAX: (724) 916-0315

Hollidaysburg Branch Office 2 Olde Farm Office Center, Suite 201 Hollidaysburg , PA Kanwal P. Chopra

16635 Phone: (814) 696-7890


FAX: (814) 696-7976

King of Prussia Branch Office 610 Freedom Business Center, Suite 114 King of Prussia , PA Kanwal P. Chopra

19406 Phone: (610) 354-0333


FAX: (610) 354-9333

American Personnel Managers & Consultants, Inc. Main 3461 Market Street Camp Hill , PA

(003261) 17011-4412 Phone: (717) 303-0229


FAX: (717) 737-4934

American Personnel Managers & Consultants, Inc. Main 2226 Gettysburg Road Camp Hill , PA

(007580) 17011 Phone: (717) 303-0229


FAX: (717) 737-4934

American Traffic Information, Inc. Main 336 Pulaksi Avenue Staten Island , NY

(005829) 10303 Phone: (718) 447-5161


FAX: (718) 447-7995

American Transportation Research Institute Main 950 N. Glebe Rd. Arlington , VA

(007253) 22203-4181 Phone: (703) 838-1946


FAX: (703) 838-0291

American Trauma Society, PA Division Main 2 Flowers Drive Mechanicsburg , PA

(008218) 17050 Phone: (717) 766-1616


FAX: (717) 766-6989

American Westech, Inc. Main 4400 Linglestown Road Harrisburg , PA

(001549) 17112-8507 Phone: (717) 651-9700


FAX: (717) 657-0752

Amitrone O'Herron, Incorporated Main 129 Juniper Street Cornwall , PA

(004411) 17016 Phone: (717) 277-0587


FAX: (717) 277-0587

Ammann & Whitney Pennsylvania, Inc. Main 2401 Walnut Street, Suite 501 Philadelphia , PA

(000004) 19103 Phone: (215) 567-1341 x229


FAX: (215) 972-8005

Ammann & Whitney Pennsylvania, Inc. 100 Fifth Avenue Pittsburgh , PA Joseph Riley, P.E.

15222 Phone: (215) 567-1341 x229


FAX: (215) 972-8005

AMRO Environmental Labs Corp. Main 111 Herrick Street Merrimack , NH

(003056) 03054 Phone: (603) 424-2022 x14


FAX: (603) 429-8496

Amy S. Greene Environmental Consultants, Inc. Main 4 Walter E. Foran Blvd Flemington , NJ

(000075) 08822 Phone: (908) 788-9676 x12


FAX: (908) 788-6788

New Cumberland Field Office 2204 Market Street Camp Hill , PA Doug Freese

17011 Phone: (717) 525-8162


FAX: (717) 525-8163

ANALYTICAL LABORATORY SERVICES, INC Main 34 DOGWOOD LANE MIDDLETOWN , PA

(006157) 17057 Phone: (717) 944-5541 x3100


FAX: (717) 944-1430

Andersen Engineering Associates, Inc. Main 306 N 5th Street Perkasie , PA

(004593) 18944 Phone: (215) 257-5711


FAX: (215) 257-5766

Andrea M. Teti, Inc. Main 31 Boulder Drive, Suite A Sellersville , PA

(002129) 18960 Phone: (215) 258-2862


FAX: (215) 258-3943

Andrew Martin Associates, Inc. Main 2700 West 21st Street Erie , PA

(002472) 16506 Phone: (814) 838-9591


FAX: (814) 838-9628

Andropogon Associates, Ltd. Main 10 Shurs Lane Philadelphia , PA

(002357) 19127 Phone: (215) 487-0700 x403


FAX: (215) 483-7520

Ang Associates, Inc. Main 1341 N. Delaware Avenue Philadelphia , PA

(000224) 19125 Phone: (215) 427-8700


FAX: (215) 427-8710

Anne Morris and Associates, LLC Main 425 Holly Street Columbia , SC

(008248) 29205-2509 Phone: (803) 429-7849


Annie W. Scates d/b/a A.W. Scates Associates Main 1313 Sheffield Street Pittsburgh , PA

(005222) 15233-1519 Phone: (412) 321-3644


FAX: (412) 321-3950

Anthracite Scenic Trails Association Main PO Box 212 Dallas , PA

(002102) 18612-9058 Phone: (570) 675-9016


FAX: (570) 675-4966

Apex Companies, LLC Main 15850 Crabbs Branch Way Rockville , MD

(000231) 20855 Phone: (301) 417-0200 x3009


FAX: (301) 975-0169

Apex Companies, LLC - Pennsylvania Division 269 Great Valley Parkway Malvern , PA Jeff Obrecht

19355 Phone: (610) 722-9050 x208


FAX: (610) 722-9010

Apogee Envrionmental & Archaeological, Inc Main 208 Main Street Whitesburg , KY

(007667) 41858 Phone: (606) 633-7677


FAX: (606) 632-2626

Appalachian Industries, Inc. Main 144 Commodore Drive Perryopolis , PA

(000851) 15473-9104 Phone: (724) 736-4546


FAX: (724) 736-4998

Apparel, Print and Promotionals, Inc. Main 200 S 18th Street Harrisburg , PA

(007290) 17104-1205 Phone: (717) 233-4277


FAX: (717) 233-4222

AppleTree Construction Solutions, Inc. Main 2780 Benner Pike Bellefonte , PA

(006135) 16823 Phone: (724) 382-1440


FAX: (724) 382-1447

Applied Archaeology and History Associates, Inc. Main 615 Fairglen Lane Annapolis , MD

(001076) 21401 Phone: (410) 224-3402


FAX: (410) 224-3470

Applied Ecological Services Inc Main 1100 E. Hector Street #398 Conshohocken , PA

(005490) 19428 Phone: (610) 238-9088


FAX: (610) 238-9931

Applied Foundation Testing, Inc. Main 4035 J. Louis Street Green Cove Springs , FL

(007673) 32043 Phone: (904) 284-1337


FAX: (904) 284-1339

Applied Geology and Environmental Science, Inc. Main 2402 Hookstown Grade Road Clinton , PA

(006007) 15026 Phone: (412) 264-6453 x23


FAX: (412) 264-6567

Applied Geoscience and Engineering, Inc. Main 150-C Love Road Reading , PA

(000034) 19607 Phone: (610) 777-5027 x111


FAX: (610) 777-4276

Applied Pavement Technology, Inc. Main 115 W. Main Street Urbana , IL

(000789) 61801 Phone: (217) 398-3977


FAX: (217) 398-4027

Applied Research Associates, Inc. (ERES Consultants Division) Main 100 Trade Centre Drive Champaign , IL

(000329) 61820-3915 Phone: (217) 356-4500


FAX: (217) 356-3088

Elkridge Office 7184 Troy Hill Dr. Elkridge , MD Richard H. Speir

21075-7056 Phone: (410) 540-9949


FAX: (410) 540-9288

Infrastructure Management Division 3605 Hartzdale Drive Camp Hill , PA Mr. John E. Hunt, P.E.

17011 Phone: (717) 975-3550


FAX: (717) 975-3557

Applied Testing & Geosciences, LLC Main 401 E Fourth St Bldg 12B Bridgeport , PA

(004866) 19405 Phone: (610) 313-3227


FAX: (610) 313-9667

Appraisal Review Specialists, LLC Main 3058 Mount Vernon Road, Suite 12 Hurricane, , WV

(007267) 25526-9458 Phone: (304) 760-2156


FAX: (304) 760-2158

Aqua-Niche Main 3595 Valley Road Marysville , PA

(005175) 17053 Phone: (717) 957-3577


FAX: (717) 957-4150

Aqua-Terra Environmental, Ltd. Main P O Box 4099 Reading , PA

(004388) 19606 Phone: (610) 374-7500


FAX: (610) 374-7480

Bedford Office P.O. Box 336 Bedford , PA William R. Zemaitis

15522 Phone: (814) 623-2782


Archaeological and Historical Consultants, Inc. Main 101 N. Pennsylvania Avenue Centre Hall , PA

(000212) 16828 Phone: (814) 364-2135


FAX: (814) 364-2143

ARM Group Inc. Main 1129 West Governor Road Hershey , PA

(000260) 17033-0797 Phone: (717) 533-8600


FAX: (717) 533-8605

ARM Group Inc. 9175 Guilford Road Columbia , MD T. Neil Peters, PE

21046 Phone: (410) 740-0840


FAX: (410) 740-0841

ARM Group Inc. - State College Office 2548 Park Center Blvd. State College , PA Wendy Pekly

16801 Phone: (814) 272-0455


FAX: (814) 272-0467

Canonsburg Office 1000 Town Center Way Canonsburg , PA Chris Stahl, PE

15317 Phone: (724) 743-5793


FAX: (724) 743-5792

Wilkes-Barre 1065 Highway 315 Wilkes-Barre , PA Andrew Strassner

18702 Phone: (412) 862-7963


Armand Corporation Main 1815 Garden Avenue Cherry Hill , NJ

(000102) 08003 Phone: (856) 489-8200 x14


FAX: (856) 489-8212

Arora and Associates, P.C. Main 4813 Jonestown Road Harrisburg , PA

(000314) 17109 Phone: (717) 920-0222


FAX: (717) 920-0555

Lehigh Valley 528 North New Street Bethlehem , PA Glenn Deppert

18018 Phone: (484) 895-3131


FAX: (484) 895-3132

Arora Engineers, Inc. Main 61 Wilmington-West Chester Pike Chadds Ford , PA

(003893) 19317 Phone: (610) 459-7900


FAX: (610) 459-7950

ARRO Consulting, Inc. Main 108 West Airport Road Lititz , PA

(000448) 17543 Phone: (717) 569-7021


FAX: (717) 560-0577

Allentown 1150 Glenlivet Drive, Suite A-19 Allentown , PA William L. Bohner, Jr., P.E.

18106 Phone: (484) 664-7310


FAX: (484) 664-7312

Limerick 649 North Lewis Road, Suite 100 Limerick , PA Eugene C. Briggs, AICP

19468-1234 Phone: (610) 495-0303


FAX: (610) 495-5855

Mechanicsburg 4750 Delbrook Road, Suite 101 Mechanicsburg , PA J. Michael Hess, P.E.

17050-3017 Phone: (717) 975-3995


FAX: (717) 975-2686

Orwigsburg 400 Pinebrook Place, Suite 8 Orwigsburg , PA Thomas V. Yashinsky

17961 Phone: (570) 366-9534


FAX: (570) 366-9537

Wyomissing 50 Berkshire Court, Sute 209 Wyomissing , PA Alex J. Morrison, P.E.

19610-1219 Phone: (610) 374-5285


FAX: (610) 374-5287

ArroActiv, Inc. Main 3101R Beale Avenue Altoona , PA

(001157) 16601-1509 Phone: (814) 946-5434


FAX: (814) 946-9545

Arrow Land Solutions, LLC Main 961 Old 6th Avenue Rd. Altoona , PA

(003428) 16601-8881 Phone: (814) 944-8006


FAX: (814) 944-2082

Arrow Land Solutions, LLC - Pittston 20 Luzerne Ave West Pittston , PA Drew Salko

18643-1816 Phone: (570) 602-9810


FAX: (570) 602-9811

ARROW Land Solutions, LLC - Delmont 195-F Sheffield Drive Delmont , PA William J. Young

15626 Phone: (866) 944-8006


FAX: (814) 944-2082

ARROW Land Solutions, LLC - Falls Church VA 701 W. Broad Street Falls Church , VA Clyde Monahan

22046 Phone: (610) 239-0848


FAX: (703) 992-7384

ARROW Land Solutions, LLC - Harrisburg 160 S. Progress Avenue Harrisburg , PA Philip F. Grow

17109 Phone: (717) 888-9187


FAX: (717) 888-9245

Arthur M. Kuholski d/b/a Lake Engineering Main 140 Meadville Street Edinboro , PA

(003137) 16412 Phone: (814) 734-1414 x01


FAX: (814) 734-4339

ASAP Staffing, Inc. Main 2851 Centre Avenue Reading , PA

(003622) 19605 Phone: (610) 921-9383 x122


FAX: (610) 921-8391

ASC Group, Inc. Main 4620 Indianola Ave. Columbus , OH

(000101) 43214 Phone: (614) 268-2514


FAX: (614) 268-7881

ASC Group, Inc. 801 East Park Drive Harrisburg , PA Susan Peters

17111 Phone: (717) 564-5705


FAX: (717) 564-5709

Associated Engineering Sciences, Inc. Main Associated Engineering Sciences, Inc. Hagerstown , MD

(000493) 21740-4864 Phone: (301) 797-9160


FAX: (301) 797-9163

Associated Pennsylvania Constructors Main 800 North Third Street Harrisburg , PA

(001283) 17102 Phone: (717) 238-2513


FAX: (717) 238-5060

ATC Group Services INc. dba ATC Associates Inc. Main 600 West Cummings Park Woburn , MA

(001717) 01801 Phone: (609) 479-8506


FAX: (609) 386-7951

Cardno ATC Burlington Branch 3 Terri Lane Burlington , NJ Bill Magee

08016 Phone: (609) 479-8506


FAX: (609) 386-7951

Cardno ATC Philadelphia Branch 920 Germantown Pike Plymouth Meeting , PA Bill Magee

19462 Phone: (609) 479-8506


FAX: (609) 386-7951

Cardno ATC Pittsburgh Branch 103 North Meadows Drive Wexford , PA Chris Carlson

15090 Phone: (724) 935-4330


FAX: (724) 935-4350

ATCS, P.L.C. Main 2553 Dulles View Drive, Suite 300 Herndon , VA

(007781) 20171 Phone: (703) 430-7500 x170


FAX: (703) 430-0889

Atkins North America, Inc. Main 400 Technology Dr. Canonsburg , PA

(000302) 15317 Phone: (412) 269-7275


FAX: (412) 269-7278

PBS&J - Coraopolis Building One, Fifth Floor Coraopolis , PA John Weres

15108 Phone: (412) 269-7275 x112


FAX: (412) 269-7278

PBS&J - Harrisburg 1200 Camp Hill Bypass Camp Hill , PA Michael Marso

17011 Phone: (717) 761-0110


FAX: (717) 761-0225

Atlantic Testing Laboratories, Limited Main 6431 U.S. Highway 11 Canton , NY

(003159) 13617-0029 Phone: (315) 386-4578


FAX: (315) 386-1012

Albany-NY 22 Corporate Drive Clifton Park , NY Steven N. Moore, I.E.

12065-8603 Phone: (518) 383-9144


FAX: (518) 383-9166

Binghamton-NY 126 Park Avenue Binghamton , NY Paul J. McDonough

13903-3227 Phone: (607) 773-1812


FAX: (607) 773-1835

Elmira-NY 2330 Route 352 Elmira , NY Jennifer E. Bray

14903-7953 Phone: (607) 737-0700


FAX: (607) 737-0714

Plattsburgh-NY 130 Arizona Avenue Plattsburgh , NY Arthur Cross, C.E.T.

12901-5961 Phone: (518) 562-5878


FAX: (518) 563-1321

Poughkeepsie-NY 251 Upper North Road Highland , NY David S. Brinkley

12528-2615 Phone: (845) 691-6098


FAX: (845) 691-6099

Rochester-NY 3445 Winton Place Rochester , NY Royce A. Knowlton

14623 Phone: (585) 427-9020


FAX: (585) 427-9021

Syracuse-NY 6085 Court Street Road Syracuse , NY Daniel R. Owens

13206 Phone: (315) 699-5281


FAX: (315) 699-3374

Utica-NY 301 St. Anthony Street Utica , NY William J. Bell

13501 Phone: (315) 735-3309


FAX: (315) 735-0742

Watertown-NY 26581 NYS Route 283 Watertown , NY James A. Trathen

13601-5132 Phone: (315) 786-7887


FAX: (315) 786-2022

ATOG, Inc. Main 6465 East Johns Crossing Duluth , GA

(001769) 30097 Phone: (770) 814-4222


FAX: (678) 513-3919

Atrium International Inc. Main 600 W. Germantown Pike Plymouth Meeting , PA

(002883) 19462 Phone: (610) 940-1716


FAX: (610) 222-7662

ATSI Inc. Main 315 Thomson Park Drive Cranberry Township , PA

(005011) 16066 Phone: (724) 742-2730 x633


FAX: (724) 742-2760

August Mack Environmental, Inc. Main 941 Wheatland Ave. Lancaster , PA

(004672) 17603 Phone: (717) 399-9587


FAX: (717) 399-5493

Avatar Environmental LLC Main 107 S. Church Street West Chester , PA

(001593) 19380 Phone: (610) 692-8330


FAX: (610) 692-8339

Aver Technologies, Inc. Main 13104 Queensdale Drive Woodbridge , VA

(006435) 22193 Phone: (703) 580-8907


FAX: (480) 247-4839

Avery T. Gretton dba Avery Gretton Architecture Main 1730 Sutton Road Shavertown , PA

(006486) 18708 Phone: (570) 696-9775


FAX: (570) 696-9775

AVIMAN Management, LLC Main 170 Sugarberry Dr. New Castle , DE

(005557) 19720 Phone: (302) 377-5788


FAX: (302) 834-0724

Avrio Group Surveillance Solutions, LLC Main 1359 Barclay Blvd Buffalo Grove , IL

(008193) 60089 Phone: (847) 215-1661


AWK Consulting Engineers, Inc. Main 1225 Rodi Road Turtle Creek , PA

(000063) 15145 Phone: (412) 823-8331


FAX: (412) 823-3390

AWK Consulting Engineers, Inc. -(Pittsburgh) 1225 Rodi Road Turtle Creek , PA Errol S. Abdulla

15145 Phone: (412) 823-8331


FAX: (412) 823-3390

AWK Consulting Engineers, Inc.(Harrisburg) 3552 Gettysburg Road, Suite 100 Camp Hill , PA Ronald W. Young

17011 Phone: (717) 761-5960


FAX: (717) 761-5969

Axiom, Inc. Main 200 Willow Street Schuylkill Haven , PA

(005218) 17972-0041 Phone: (570) 385-1944


FAX: (570) 385-3499

Axis Geospatial LLC Main 1150 First Avenue, Ste 511 King of Prussia , PA

(007442) 19406 Phone: (410) 822-1441


Axis Professional Surveying, LLC Main 2365 Cedar Springs Road Mifflintown , PA

(005646) 17059 Phone: (717) 602-7434


FAX: (717) 436-0284

Aztec Engineering Group, Inc. Main 4561 E. McDowell Road Phoenix , AZ

(004381) 85008 Phone: (602) 454-0402


FAX: (602) 458-7477

B E Structural, PC Main 500 N Front Street Wormleysburg , PA

(005448) 17043 Phone: (717) 737-1559


FAX: (717) 737-1320

B. T. HARDER, INC. Main 1740 Addison Street Philadelphia , PA

(004224) 19146-1517 Phone: (215) 735-2482


FAX: (215) 735-9586

BAE Systems ADR Inc. Main 280 Kappa Drive Pittsburgh , PA

(000168) 15238 Phone: (412) 967-9577


FAX: (412) 967-9564

Mt. Laurel, NJ 124 Gaither Drive Mt. Laurel , NJ Joseph Bodick

08054 Phone: (856) 866-9700 x222


FAX: (856) 866-7800

BAE Systems Information Solutions Inc. Main 311 23rd Street Extension Pittsburgh , PA

(006333) 15215 Phone: (856) 793-4294


FAX: (856) 866-7800

BAE Systems National Security Solutions, Inc. Main 280 Kappa Drive Pittsburgh , PA

(003786) 15238-2818 Phone: (856) 793-4294


FAX: (856) 866-7800

Mount Laurel, NJ 124 Gaither Drive Mount Laurel , NJ Gertrude (Di) Rufer

08054 Phone: (856) 866-9700 x202


FAX: (856) 866-7800

Payment Address BAE Systems NSS Philadelphia , PA Rebecca Manes

19170-6941 Phone: (856) 793-4294


FAX: (856) 866-7800

Bailey Bridges, Incorporated Main 119 40th Street NE Fort Payne , AL

(005955) 35967 Phone: (256) 845-7575


FAX: (256) 845-7775

Bailey Engineers & Constructors, Inc. Main 1219 Monterey St. Pittsburgh , PA

(007453) 15212-4510 Phone: (412) 323-9237


FAX: (412) 405-3028

Bailey Engineers & Constructors, Inc. P.C. 1553 State Route 69 West Monroe , NY John W. Franz, Jr. P.E.

13167 Phone: (315) 625-7033


FAX: (412) 405-3028

Ballard Spahr LLP Main 1735 Market Street Philadelphia , PA

(005891) 19103-7599 Phone: (215) 665-8500


FAX: (215) 864-8999

BANC 3, Inc., P.C. Main 379 Princeton-Hightstown Road Cranbury , NJ

(002140) 08512 Phone: (609) 759-1900 x301


FAX: (609) 919-9022

Bankson Engineers, Inc. Main 267 Blue Run Road Indianola , PA

(003128) 15051-0200 Phone: (412) 767-5100


FAX: (412) 767-5107

Barry Isett & Associates, Inc. Main 85 South Route 100 Allentown , PA

(000398) 18106-9207 Phone: (610) 398-0904


FAX: (610) 481-9098

Hazleton Office 100 W. Broad Street, Suite 200 Hazleton , PA Gregg Pavlick

18201-1064 Phone: (570) 455-2999


FAX: (570) 454-9979

Valley Forge 1003 Egypt Road Phoenixville , PA Bob Heist, CFM

19460 Phone: (610) 935-2175


FAX: (610) 539-6373

Barton & Loguidice, P.C. Main 1104 Fernwood Avenue Camp Hill , PA

(004382) 17011-6939 Phone: (717) 737-8326


FAX: (717) 737-8328

Albany 10 Airline Drive, Suite 200 Albany , NY Richard A. Straut

12205 Phone: (518) 218-1801 x2010


FAX: (518) 218-1805

Syracuse 290 Elwood Davis Road Syracuse , NY Nicholas J. Pinto

13220-3107 Phone: (315) 457-5200 x1010


FAX: (315) 451-0052

Base Architecture, Planning, & Engineering, Inc. Main 6151 W. Century Blvd. Los Angeles , CA

(008263) 90045 Phone: (215) 665-5624


BaseMap Services, LLC Main 1049 Bonnie Blue Circle Williamstown , NJ

(008316) 08094 Phone: (856) 318-1319


FAX: (856) 318-1412

Basile Baumann Prost Cole & Associates,Inc. Main 177 Defense Highway Annapolis , MD

(000533) 21401 Phone: (410) 266-7800


FAX: (410) 266-7866

Bassett Engineering, Inc. Main 1440 Broad Street Montoursville , PA

(005019) 17754-2510 Phone: (570) 368-2131


FAX: (570) 368-2026

Batta Environmental Associates, Inc Main Delaware Industrial Park Newark , DE

(003846) 19713-5817 Phone: (302) 737-3376 x102


FAX: (302) 737-5764

Baystate Subsurface Investigation, Inc Main BSI Boston , MA

(001791) 02116 Phone: (617) 421-0020


FAX: (617) 236-7842

BBC&M Engineering, Inc. Main 6190 Enterprise Court Dublin , OH

(000297) 43016-7297 Phone: (614) 793-2226


FAX: (614) 793-2410

BBC&M Engineering, Inc. 8555 Sweet Valley Drive Valley View , OH Glen Andersen, Sc.D., P.E.

44125-4254 Phone: (440) 585-9995


FAX: (440) 585-3214

BBP & Associates, LLC Main 177 Defense Highway Annapolis , MD

(005737) 21401 Phone: (443) 261-1828


FAX: (443) 261-1980

Beacon Street Consultants, Inc. Main 110 Singletree Drive Venetia , PA

(003087) 15367 Phone: (412) 344-1606


FAX: (412) 344-1607

BearingPoint, Inc. Main 1676 International Drive McLean , VA

(001719) 22101 Phone: (717) 213-6376


FAX: (717) 234-3670

Harrisburg - US292 30 N 3rd Street Harrisburg , PA James C. Sideris

17101 Phone: (717) 213-6330


FAX: (717) 234-3670

Beaver River Enterprises, LLC Main 4229 Marion Hill Road New Brighton , PA

(005106) 15066 Phone: (724) 312-7816


FAX: (724) 847-1798

Beers & Hoffman, Ltd. Architects Main 20-A East Roseville Road Lancaster , PA

(008160) 17601 Phone: (717) 569-4955


FAX: (717) 560-1952

Lebanon Office 815 Cumberland Street Lebanon , PA Robert P. Hoffman

17042 Phone: (717) 273-7774


FAX: (717) 560-1952

Behan Design, LLC Main 112 Spring Street, Suite 305 Saratoga Springs , NY

(006163) 12866 Phone: (518) 583-4335


Behan Planning Associates, LLC dba Behan Planning and Design Main 112 Spring Street, Suite 305 Saratoga Springs , NY

(006164) 12866 Phone: (518) 583-4335


FAX: (518) 583-6970

Bellevue Communications Group, LLC Main 200 South Broad Street Harrisburg , PA

(004611) 19101-3823 Phone: (215) 735-5960


FAX: (215) 546-0636

Bellomo-McGee, Inc. Main 8330 Boone Blvd. Vienna , VA

(001802) 22182-2624 Phone: (703) 847-3071


FAX: (703) 847-0298

Belstar, Inc. Main 8408 Arlington Blvd. Fairfax , VA

(003644) 22031 Phone: (703) 645-0280


FAX: (703) 645-0286

BEM Systems, Inc. Main 100 Passaic Avenue Chatham , NJ

(000422) 07928-2848 Phone: (908) 598-2600


FAX: (908) 598-2622

Benatec Associates Main 200 Airport Road New Cumberland , PA

(000049) 17070-0807 Phone: (717) 901-7055


FAX: (717) 901-7059

Harrisburg 1414 N. Cameron Street Harrisburg , PA David Mooney

17103 Phone: (717) 260-0102 x3316


FAX: (717) 260-0112

Uniontown 1040 Eberly Way Lemont Furnace , PA Dane White

15456 Phone: (724) 439-2835 x3409


FAX: (724) 439-2838

Benchmark Civil Engineering Services, Inc. Main 1727 Jonathan Street Allentown , PA

(000149) 18104 Phone: (610) 776-6700


FAX: (610) 776-1190

Beran Environmental Services, Inc. Main 2322 W Sunbury Rd Boyers , PA

(002515) 16020 Phone: (724) 735-2766


FAX: (724) 735-9992

Bergmaier Communications, Inc. Main 1021 Dorchester Lane Harleysville , PA

(000164) 19438 Phone: (215) 513-0157


FAX: (215) 513-0157

Bergmaier Communications, Inc. Main 1021 Dorchester Lane Harleysville , PA

(000331) 19438 Phone: (215) 513-0157


FAX: (215) 513-1399

Bergmann Associates, Inc. Main 1040 First Avenue King of Prussia , PA

(000207) 19406 Phone: (610) 783-1420 x362


FAX: (610) 783-1425

Bergmann Associates, Inc. - Albany 10-B Madison Avenue Ext. Albany , NY Steve Boisvert

12203 Phone: (518) 862-0325 x410


FAX: (518) 862-0326

Bergmann Associates, Inc. - Buffalo 40 LaRiviere Drive Buffalo , NY Kevin H. Miller

14202 Phone: (716) 852-3211 x851


FAX: (716) 852-1767

Bergmann Associates, Inc. - Rochester 200 First Federal Plaza Rochester , NY David A. Thurnherr

14614-1909 Phone: (585) 232-5137 x262


FAX: (585) 325-8306

Bergmann Associates, Inc. - Wexford Franklin Park Corporate Center Wexford , PA Christopher Binck

15090 Phone: (724) 933-4080


FAX: (724) 933-4084

Berks Traffic & Line Painting, Inc. Main P O BOX 472 BLANDON , PA

(001803) 19510 Phone: (610) 926-2411


FAX: (610) 926-0883

Bernard J. Lamm d/b/a Bernard J. Lamm Engineering Main 638 Wood Street Harmony , PA

(001049) 16037 Phone: (724) 452-8547


FAX: (724) 452-0633

Berner Consulting LLC d/b/a Construction Claims Group, LLC Main 14 Ridgedale Avenue Cedar Knolls , NJ

(005634) 07927-1115 Phone: (973) 285-0001


FAX: (973) 285-5511

Bertsche Engineering, Inc. Main 942 Main Street Honesdale , PA

(007952) 18431 Phone: (570) 253-8924


BET Engineering Consultants, Inc. Main 36 Route 10 East Hanover , NJ

(000040) 07936 Phone: (973) 515-2050


FAX: (973) 515-2006

Betsy W. Bach d/b/a Bach Consulting Main 823 Hilda Street Missoula , MT

(004139) 59801-4331 Phone: (406) 243-2580


FAX: (406) 243-6136

Beymar Inc. Main 1199 Old Jordan Road Holland , PA

(001875) 18966-2680 Phone: (215) 860-0549


BHE Environmental, Inc. Main 11733 Chesterdale Road Cincinnati , OH

(000205) 45246 Phone: (513) 326-1500


FAX: (513) 326-1550

BHE - Columbus OH 1335 Dublin Road Columbus , OH Larry Graves

43215 Phone: (614) 487-7831


FAX: (614) 487-7841

BHE - Dayton OH 77 West Elmwood Drive Dayton , OH Michael Kerr

45459 Phone: (937) 312-1305


FAX: (937) 312-1306

BHE - Houston TX 15311 Vantage Parkway West Houston , TX Sam Damico

77032 Phone: (281) 219-1200


FAX: (281) 219-1211

BHE - Knoxville TN 7041 Maynardville Highway Knoxville , TN Karen Tyrell, Ph.D.

37918 Phone: (865) 922-4305


FAX: (865) 922-8495

BHE - Mechanicsburg PA 5070 B Ritter Road Mechanicsburg , PA Alan Beauregard

17055 Phone: (717) 697-6255


FAX: (717) 697-7199

BHE - Rolla MO 1417 Forum Drive, #F2 Rolla , MO John Johnson

65401 Phone: (573) 341-5213


FAX: (573) 341-5214

Biodrawversity, LLC Main 433 West Street Amherst , MA

(006344) 01002 Phone: (413) 253-8078


BioMost, Inc. Main 434 Spring Street Extension Mars , PA

(006384) 16046 Phone: (724) 776-0161


FAX: (724) 776-0166

Birdsall Services Group, Inc. Main 611 Industrial Way West Eatontown , NJ

(006215) 07724 Phone: (732) 380-1700 x1202


FAX: (732) 380-1701

Barnegat 529 Route 9 Barnegat , NJ John Hess

08005 Phone: (609) 698-1144 x3111

Cranford 65 Jackson Drive Cranford , NJ Jim Johnston

07016 Phone: (908) 497-8900 x6167

New York City One Penn Plaza New York , NY Ken Sisk

10119 Phone: (212) 786-7369

Newark 550 Broad Street Newark , NJ Phil Scott

07102 Phone: (732) 380-1700 x6113

Patchogue, NY 42 West Avenue Patchogue , NY Chuck Utschig

11772 Phone: (631) 475-0020

FAX: (631) 475-0025

Voorhees 1101 Laurel Oak Road Voorhees , NJ Anthony LaRosa

08043 Phone: (856) 783-1900 x6701

White Plains 1311 Mamaroneck Avenue White Plains , NY Chuck Utschig

10605 Phone: (914) 686-1000 x6902

BJP ENGINEERS LLC Main 78 Hollybrooke Drive Langhorne , PA

(006491) 19047 Phone: (267) 432-2770


BL Companies Pennsylvania, Inc. Main 355 Research Parkway Meriden , CT

(002984) 06450-7100 Phone: (717) 651-9850


FAX: (717) 651-9858

BL Companies - Harrisburg, PA 4242 Carlisle Pike Camp Hill , PA Michael Lozanoff, PE

17011 Phone: (717) 651-9850


FAX: (717) 651-9858

BL Companies - Philadelphia, PA 1060 First Avenue, Suite 400 King of Prussia , PA Michael Lozanoff, PE

19406 Phone: (610) 337-3630


FAX: (610) 337-3642

Blair Insurance Services Inc Main 107 Ivyside Estates Lane Altoona , PA

(001368) 16601 Phone: (814) 931-1196


FAX: (877) 771-3377

Blazosky Associates, Inc. Main 2525 Green Tech Drive State College , PA

(002107) 16803 Phone: (814) 238-2060


FAX: (814) 238-7123

Delaware Valley Office 649 North Lewis Road Royersford , PA Michael Rudy

19468 Phone: (610) 495-5585


FAX: (610) 495-7652

State College Office 2525 Green Tech Drive State College , PA Karen Finlan

16803 Phone: (814) 238-2060 x138


FAX: (814) 238-7123

Tioga Environmental Consulting, LLC 5513 SR 6 Tunkhannock , PA Rebecca Peterson

18657 Phone: (570) 836-2225


FAX: (570) 836-2227

Bluestone Engineering, Inc. Main 675 Lancaster Avenue Berwyn , PA

(007376) 19312 Phone: (610) 647-9500


FAX: (610) 647-9500

BNY Associates, Inc. Main 6200 Crofton Court Mechanicsburg , PA

(005657) 17050 Phone: (717) 731-8588


FAX: (717) 458-0353

Boggs Environmental Consultants, Inc. Main 1 College Ave. Frederick , MD

(000242) 21701 Phone: (301) 694-5687


FAX: (301) 694-9799

Bogia Engineering Inc. Main 1100 Berkshire Blvd Wyomissing , PA

(004533) 19610-1221 Phone: (610) 678-3071


FAX: (610) 678-3517

Bohler Engineering, Inc. Main New Britain Corporate Center Chalfont , PA

(004990) 18914 Phone: (215) 996-9100


FAX: (215) 996-9102

Boles, Smyth Associates, Inc. Main 2400 CHESTNUT STREET PHILADELPHIA , PA

(000140) 19103-4316 Phone: (215) 561-2644 x124


FAX: (215) 561-0501

Boord, Benchek & Assoc., Inc Main 345 Southpointe Blvd. Canonsburg , PA

(003119) 15317 Phone: (724) 984-5482


FAX: (724) 746-1244

Booz Allen & Hamilton Inc. Main 8283 Greensboro Drive McLean , VA

(000499) 22102-3838 Phone: (703) 902-5000


FAX: (703) 902-3333

Borough of Ebensburg Main 300 West High Street Ebensburg , PA

(006356) 15931 Phone: (814) 472-8780


FAX: (814) 472-8789

Borough of Ebensburg Main 300 West High Street Ebensburg , PA

(006716) 15931 Phone: (814) 472-8780


FAX: (814) 472-8789

Borough of Mifflinburg Main 120 North Third Street Mifflinburg , PA

(001814) 17844 Phone: (570) 966-1013


FAX: (570) 966-4258

Borton-Lawson Engineering, Inc. Main 613 Baltimore Drive Wilkes-Barre , PA

(000043) 18702-7903 Phone: (570) 821-1994 x252


FAX: (570) 821-1990

Greater Lehigh Valley Office 3893 Adler Place, Suite 100 Bethlehem , PA Kenneth M. McClain

18017 Phone: (484) 821-0470 x140


FAX: (484) 821-0474

Pittsburgh Office Brooktree Office Park Wexford , PA Matthew T. Neiman, P.E.

15090 Phone: (724) 935-3110


FAX: (724) 935-3112

State College 2601 Gateway Drive State College , PA Paul McClellan, P.E.

16801 Phone: (814) 238-4243 x24


FAX: (814) 238-4293

Boschung America LLC Main 930 Cass Street New Castle , PA

(001658) 16101-8427 Phone: (724) 658-3300 x506


FAX: (724) 658-2300

Boston & Seeberger, P.C. Main 5 Ferry Road Pennsville , NJ

(005474) 08070 Phone: (856) 678-9146


FAX: (856) 678-9148

Boswell Engineering, Inc. Main 330 Phillips Avenue South Hackensack , NJ

(003387) 07606 Phone: (201) 641-0770


FAX: (201) 641-1831

Bottom Line, Inc. Main 168 South 19th Street Pittsburgh , PA

(000182) 15203-1856 Phone: (412) 481-0400 x10


FAX: (412) 381-0900

Boucher & James, Inc. Main 1456 Ferry Road Doylestown , PA

(003349) 18901 Phone: (215) 345-9400


FAX: (215) 345-9401

Stroudsburg Office 2738 Rimrock Drive Stroudsburg , PA Jon S. Tresslar

18360 Phone: (570) 629-0300


FAX: (570) 629-0301

Bove Engineering Company, Inc. Main Armbrust Professional Center Greensburg , PA

(001772) 15601-7515 Phone: (724) 925-9269


FAX: (724) 925-1216

Bowman Consulting Group, Ltd Main 680 Andersen Drive Pittsburgh , PA

(007682) 15220-2761 Phone: (412) 328-2222


FAX: (412) 328-2244

Chicago 180 North Stetson Avenue Chicago , IL Matthew Letson

60601 Phone: (312) 614-0380


FAX: (312) 946-7199

Richmond 3951 Westerre Parkway Richmond , VA Spencer Francis

23233 Phone: (804) 616-3240


FAX: (804) 270-2008

Boyd Paul Strain, Jr. d/b/a Boyd Paul Strain, Jr., P. E. Main 1911 Deer Path Road Harrisburg , PA

(005578) 17110-3423 Phone: (717) 657-3662


FAX: (717) 657-3662

Boyer Engineering LLC Main 1436 Sesser Lane Reading , PA

(007333) 19606 Phone: (610) 689-8021 x222


FAX: (610) 689-4538

BPA Environmental Services, Inc. Main 67 King Street Pottstown , PA

(001000) 19464 Phone: (610) 427-9014


FAX: (610) 427-9018

BREE & Associates, Inc. Main 5315 Highgate Drive Durham , NC

(006377) 27713-6623 Phone: (919) 469-3330


FAX: (919) 469-3370

Philadelphia 1700 Market Street, Suite 1005 Philadelphia , PA Jasmine Narcisse

19103 Phone: (267) 405-3111


Brehm-Lebo Engineering, Inc. Main 17 State Avenue Carlisle , PA

(000292) 17013-4431 Phone: (717) 243-4114


FAX: (717) 243-3301

Chambersburg Office 40 North Second Street Chambersburg , PA William E. Green

17201-1819 Phone: (717) 267-1401


FAX: (717) 267-1917

Brenton Associates, Inc Main 1504 South Street Philadelphia , PA

(005403) 19146 Phone: (215) 546-8458


BRF, Inc. Main 409 E. Main St Lititz , PA

(001275) 17543 Phone: (717) 626-0812


FAX: (717) 625-3024

Brian C. Kelly DBA Brian C. Kelly, PLS Main 340 Strayer Street Johnstown , PA

(007563) 15906 Phone: (814) 243-6630


FAX: (814) 536-5730

Bridge Diagnostics, Inc. Main 1965 57TH COURT NORTH BOULDER , CO

(003759) 80301-2826 Phone: (303) 494-3230


FAX: (303) 494-5027

BrightFields, Inc. Main 801 Industrial Street Wilmington , DE

(004535) 19801 Phone: (302) 656-9600


FAX: (302) 656-9700

Baltimore 3430 2nd Street Baltimore , MD Jenna Harwanko

21225 Phone: (410) 585-9600


FAX: (410) 585-9700

Philadelphia Navy Yard 4613 South Broad St. Philadelphia , PA Jenna Harwanko

19112 Phone: (302) 656-9600


FAX: (302) 656-9700

Brinjac Engineering, Inc. Main 114 North Second Street Harrisburg , PA

(000042) 17101-1401 Phone: (717) 233-4502 x6011


FAX: (717) 233-0833

Brinkerhoff Environmental Services, Inc. Main 1805 Atlantic Avenue Manasquan , NJ

(001037) 08736 Phone: (732) 223-2225


FAX: (732) 223-3666

Brinkerhoff Environmental Services, Inc. 133 Jackson Road Medford , NJ Jennifer Taylor

08055 Phone: (609) 714-2141


FAX: (609) 714-2143

Briones Consulting & Engineering, Ltd. Main 8118 Broadway San Antonio , TX

(007517) 78209 Phone: (210) 828-1431


FAX: (210) 828-1432

Brown & Keener Urban Design, P.C. Main 1315 Walnut Street Philadelphia , PA

(005535) 19107 Phone: (215) 751-1133


Brown Bear Civil Engineering Group, Inc. Main 282 East McKinley Road Delta , PA

(007097) 17314 Phone: (717) 322-3001


FAX: (717) 322-3001

Brown Design Corp Main 347 N 9th Street Allentown , PA

(006000) 18102 Phone: (610) 821-4252


FAX: (610) 821-4255

Brown Hill Tree Co., Inc Main 2706 SR 3001 Meshoppen , PA

(004903) 18630 Phone: (570) 833-0733


FAX: (570) 833-4877

Brownfield Associates, Inc. Main P.O. Box 703 Mendenhall , PA

(003074) 19357 Phone: (610) 388-9720


FAX: (610) 388-9721

Brownfield Associates, inc. NJ Office PO Box 600 Belmar , NJ Jonathan Lisko

07719 Phone: (732) 280-1420


FAX: (732) 280-1421

Brownfields Technology Group, Inc. Main 216 Wyncote Road Jenkintown , PA

(001733) 19046 Phone: (215) 886-8665


FAX: (215) 886-3039

Brudis & Associates, Inc. Main 9240 Rumsey Road, Suite C Columbia , MD

(003720) 21045 Phone: (410) 884-3607


FAX: (410) 884-3609

Pennsylvania Branch 1444 Hunter Road Abington , PA James Graham

19046 Phone: (443) 803-6719


FAX: (410) 884-3609

BT Environmental Health and Safety Consultants, Inc. Main 3984 Penn Avenue Sinking Spring , PA

(002216) 19608-1112 Phone: (610) 927-2720


FAX: (610) 927-2757

BTM Associates, Inc. Main 3001 Taylor Springs Drive Louisville , KY

(003683) 40220-1582 Phone: (502) 459-8402


FAX: (502) 459-8427

BTM Associates, Inc.; Philadelphia 2500 DeKalb Pike East Norriton , PA Richard Vishab

19401-2007 Phone: (610) 279-6920


FAX: (610) 279-6923

BTM Associates, Inc.; Pittsburgh Suite 402 - 200 Hightower Office Bldg. Pittsburgh , PA Gladys Cox

15205 Phone: (412) 788-3640


FAX: (412) 788-3641

Buchart Horn, Inc. Main Industrial Plaza of York York , PA

(000029) 17401 Phone: (717) 852-1400 x493


FAX: (717) 852-1401

Buchart-Horn/Harrisburg Veterans Building Harrisburg , PA Charles Kinney

17101 Phone: (717) 852-1437


FAX: (717) 852-1621

Buchart-Horn/Hershey 431 East Chocolate Avenue Hershey , PA Charles Kinney

17033-1324 Phone: (717) 852-1437


FAX: (717) 852-1621

Buchart-Horn/New Cumberland Suite 1 NewCumberland , PA Charles Kinney

17070 Phone: (717) 852-1437


FAX: (717) 852-1621

Buchart-Horn/Pittsburgh Liberty Technology Center Pittsburgh , PA Robert Zulick

15222-4502 Phone: (412) 261-5059


FAX: (412) 261-4168

Buchart-Horn/State College 1975 Waddle Road State College , PA Charles Walls

16803-1639 Phone: (814) 237-7111


FAX: (814) 237-5692

Buchart-Horn/Stroudsburg 600 Main Street, Suite 110 Stroudsburg , PA David Polatnick

18360 Phone: (570) 213-0082


FAX: (570) 213-0087

Buchart-Horn/York 445 West Philadelphia Street York , PA Mike Gross

17401 Phone: (717) 852-1493


FAX: (717) 852-1622

Buckhurst, Fish, and Jacquemart, Inc. Main 115 Fifth Ave New York , NY

(006443) 10003 Phone: (212) 353-7623


FAX: (212) 353-7676

Buckl Architects, Inc. Main 4001 Freemansburg Avenue Easton , PA

(006482) 18045 Phone: (610) 258-6657


FAX: (610) 258-1305

Bucks County Transportation Management Association, Inc. Main Seven Neshaminy Interplex Trevose , PA

(008016) 19053 Phone: (215) 244-9082


FAX: (215) 244-9086

Bureau Veritas North America, Inc. Main 1601 Sawgrass Corporate Parkway Ft. Lauderdale , FL

(004408) 33323 Phone: (412) 503-4105


FAX: (412) 921-8836

Gainesville Office 4509 NW 2nd Avenue Gainesville , FL George Tedder

32606 Phone: (412) 503-4130


FAX: (352) 505-3604

Lisle, IL 4343 Commerce Court Lisle , IL Gregory Rzonca

60532 Phone: (630) 795-3282


FAX: (630) 795-3288

Pittsburgh, PA Foster Plaza XI Pittsburgh , PA Richard Bogovich

15200 Phone: (412) 921-8833


FAX: (412) 921-8836

Burgess & Niple, Inc. Main 5085 Reed Road Columbus , OH

(001282) 43220 Phone: (614) 459-2050 x438


FAX: (614) 459-1405

Columbus 5085 Reed Road Columbus , OH Mark Bernhardt

43220 Phone: (614) 459-2050


FAX: (614) 451-1385

Dulles 4160 Pleasant Valley Road Chantilly , VA Art Woods

20151 Phone: (703) 631-9630


FAX: (703) 631-6041

Painesville 100 W. Erie Street Painesville , OH Robert Bright

44077 Phone: (440) 354-9700


FAX: (440) 352-8373

Burget & Associates, Inc. Main 1797 NEW BLOOMFIELD ROAD NEW BLOOMFIELD , PA

(002978) 17068-9730 Phone: (717) 582-7011


FAX: (717) 582-3557

BURGETTE CONSTRUCTION SERVICES INC. Main 210 DEBBIE DRIVE SCRANTON , PA

(002208) 18505 Phone: (570) 840-4580


FAX: (570) 343-1861

Burns Engineering, Inc. Main 1835 Market Street, Suite 300 Philadelphia , PA

(000266) 19103 Phone: (215) 563-9270 x0


FAX: (215) 563-9765

Bursich Associates, Inc. Main 2129 East High Street Pottstown , PA

(000217) 19464 Phone: (610) 323-4040 x422


FAX: (610) 323-8240

Southampton 706 Lakeside Drive Southampton , PA Richard Smith

18966 Phone: (215) 364-2520


FAX: (215) 364-1047

Burt Hill Inc. Main 400 Morgan Center Butler , PA

(004530) 16001 Phone: (724) 285-4761


FAX: (724) 285-6815

Business Builders Worldwide Inc. Main 447 South Prince St. Lancaster , PA

(003984) 17603-5657 Phone: (717) 509-2692


FAX: (717) 509-2693

Buzzelli Group LLC Main 3214 Latonia Ave Pittsburgh , PA

(006066) 15216 Phone: (724) 263-1626


FAX: (412) 207-8778

ByDesign Consultants, Inc. Main 355 North 21st Street, Suite 101 Camp Hill , PA

(000856) 17011 Phone: (717) 540-1250


FAX: (717) 540-0002

C D Bert & Associates, Inc d/b/a Carl Bert & Associates Main 20 East Burd Street Shippensburg , PA

(001810) 17257-1338 Phone: (717) 532-9470


FAX: (717) 530-9339

C H Planning, Limited Main 1429 Walnut Street Philadelphia , PA

(005995) 19102 Phone: (215) 751-1400


FAX: (215) 751-1414

C. Robert Wynn Associates, Inc. Main 211 West Broad Street Quakertown , PA

(007468) 18951 Phone: (215) 536-7336


FAX: (215) 536-5361

C. V. Associates NY; P.E., L.S., P.C. Main 148 Route 17M, Suite 2 Harriman , NY

(001836) 10926-3318 Phone: (845) 774-1075


FAX: (845) 774-8139

C. W. Junkins Associates, Inc. Main COVENTRY CENTER MECHANICSBURG , PA

(000221) 17055-5122 Phone: (717) 697-8489 x0


FAX: (717) 697-2434

C.C. Johnson & Malhotra, P.C. Main 4660 Trindle Road Camp Hill , PA

(000458) 17011 Phone: (717) 730-4160 x101


FAX: (717) 730-4170

Baltimore 3700 Koppers Street Baltimore , MD Shree Gokhale, PE Vice President

21227-1020 Phone: (410) 664-0130

Chicago CCJM Engineers, Ltd. Chicago , IL Anil Ahuja, PE, Sr. Vice President

60606-2600 Phone: (312) 669-0609

Columbia 9891 Broken Land Parkway Columbia , MD Donald Koch, PE

21046 Phone: (410) 461-9920

Washington 1025 Connecticut Avenue, NW Washington DC , DC David Chang, PE, Vice President

20036-5405 Phone: (202) 363-0350

C.S. Davidson, Inc. Main 38 North Duke Street York , PA

(000152) 17401 Phone: (717) 846-4805 x280


FAX: (717) 846-5811

Gettysburg 50 West Middle Street Gettysburg , PA Eric B. Gladhill, P.L.S.

17325-2101 Phone: (717) 337-3021


FAX: (717) 337-0782

Lancaster 315 West James Street Lancaster , PA William F. Sauers, P.E.

17603-2979 Phone: (717) 481-2991


FAX: (717) 481-8690

C.T. Male Associates, P.C. Main 50 Century Hill Drive Latham, , NY

(003069) 12110-0727 Phone: (518) 786-7400


FAX: (518) 786-7299

C&M Associates, Inc. Main 15770 Dallas Parkway Dallas , TX

(007972) 75248 Phone: (214) 764-2896


C&S Engineers, Inc. Main 499 Col. Eileen Collins Blvd. Syracuse , NY

(002013) 13212 Phone: (315) 455-2000


FAX: (315) 455-9667

Cahill Associates, Inc. Main 104 South High Street West Chester , PA

(003180) 19382 Phone: (610) 696-4150


FAX: (610) 696-8608

Calori & Vanden-Eynden.Ltd. Main 130 West 25th Street New York , NY

(004939) 10001 Phone: (212) 929-6302 x14


FAX: (212) 675-2867

Cambridge Systematics, Inc. Main 100 CambridgePark Drive Cambridge , MA

(000158) 02140-2322 Phone: (617) 354-0167


FAX: (617) 354-1542

Campbell Thomas & Co. Architects Main 1504 South Street Philadelphia , PA

(000103) 19146 Phone: (215) 545-1076


FAX: (267) 336-0209

Canaan Valley Institute, Inc. Main InCorp Services, Inc. Hummelstown , PA

(004437) 17036 Phone: (304) 259-4739 x288


FAX: (304) 259-4759

Capital Project Managment, Inc. Main 1777 Sentry Parkway West Blue Bell , PA

(005431) 19422-2210 Phone: (267) 464-0500


FAX: (267) 464-0400

Capital Structural Engineering Consultants Inc. Main Suite 600 Harrisburg , PA

(001727) 17101-1634 Phone: (717) 213-4010


FAX: (717) 213-4014

Capitol Environmental Services, Inc. Main 8229 Boone Boulevard Vienna , VA

(002849) 22182 Phone: (302) 652-8999


FAX: (302) 652-8980

Cappco Tubular Products USA LLC Main 755 South Service Road, Suite 203 Stoney Creek , ON

(005145) L8E -5Z2 Phone: (905) 643-8084


FAX: (905) 643-3293

Carbon Engineering, Inc. Main 350N. Pine Street Summit Hill , PA

(002220) 18250-1302 Phone: (570) 645-9545


FAX: (570) 645-6413

Carbon Service Corporation Main 531 Seneca Road, Suite 1 Lehighton , PA

(003860) 18235-9798 Phone: (570) 386-5605


FAX: (570) 386-5607

Carbondale Center for Small Business Technology Transfer, Inc. Main 10 Enterprise Drive Carbondale , PA

(003420) 18407 Phone: (570) 282-1255


FAX: (570) 282-1426

Carol R. Johnson Associates, Inc. Main 115 Broad Street Boston , MA

(002347) 02110 Phone: (617) 896-2500 x2650


FAX: (617) 896-2340

CARPENTERS LOCAL UNION 2274 Main 495 MANSFIELD AVENU;E PITTSBURGH , PA

(002073) 15205 Phone: (412) 922-6210


FAX: (412) 321-3242

Carroll Engineering Corporation Main 949 Easton Road Warrington , PA

(000167) 18976 Phone: (215) 343-5700 x316


FAX: (215) 343-0875

King of Prussia 630 Freedom Business Center King of Prussia , PA Alberto Vennettilli

19406 Phone: (610) 489-5100


FAX: (610) 489-2674

Malvern 101 Lindenwold Drive Malvern , PA Alberto Vennettilli

19355 Phone: (484) 875-3075


FAX: (484) 875-3178

Carter van Dyke Associates, Inc. Main 40 Garden Alley Doylestown , PA

(005575) 18901-4386 Phone: (215) 345-5053 x111


FAX: (215) 345-4324

Caruolo Associates, Inc. Main 5 Plane Tree Lane Valley Forge , PA

(003569) 19482-1150 Phone: (610) 983-3694


FAX: (610) 983-9808

Cassio Engineering, Inc. Main 5013 Deer Drive Downingtown , PA

(000230) 19335-5510 Phone: (610) 873-8998


FAX: (610) 873-3793

CAST Construction, Inc. Main 11 Graystone Drive Chadds Ford , PA

(007558) 19317 Phone: (610) 459-5080


FAX: (610) 453-5080

Castle Valley Consultants, Inc. Main 10 Beulah Road New Britain , PA

(008173) 18901 Phone: (215) 348-8257 x116


FAX: (215) 348-8267

Catalyst Advertising Main 168 South 19th Street Pittsburgh , PA

(000178) 15203-1856 Phone: (412) 381-1100 x10


FAX: (412) 381-0900

Catania Engineering Associates, Inc. Main 520 W. MacDade Blvd Milmont Park , PA

(001559) 19033-3311 Phone: (610) 532-2884


FAX: (610) 532-2923

Catherine M. Anderson dba CMA Consultants Main 217 Thornberry Circle Pittsburgh , PA

(000289) 15234-0000 Phone: (412) 854-3606


CC Contracting and Construction Corporation Main 93 Hartford Road Sewell , NJ

(003960) 08080 Phone: (267) 252-7330


Springfield Office 1115 Lincoln Ave Springfield , PA Gina Dadario

19064 Phone: (267) 252-7330


CCT Labs, Inc Main 197 Wilson Switchback Saint Marys , PA

(007904) 15857-3390 Phone: (814) 590-1375


FAX: (877) 242-2016

CDI-Infrastructure, LLC d/b/a L. R. Kimball Main 1717 Arch Street, 35th Floor Philadelphia , PA

(005926) 19103 Phone: (814) 472-7700 x1305


FAX: (814) 472-7712

Coraopolis 415 Moon Clinton Road Coraopolis , PA Tammy Sherwin

15108 Phone: (412) 262-5400 x4253


FAX: (412) 262-3036

Ebensburg 615 W. Highland Avenue Ebensburg , PA Richard E. Genday, PE

15931 Phone: (814) 472-7700 x1270


FAX: (814) 472-7712

Harrisburg 4400 Deer Path Road Harrisburg , PA Ronald Morris

17110 Phone: (717) 221-8820 x6237


FAX: (717) 221-8860

Philadelphia Two Commerce Square Philadelphia , PA Allan Stock

19103 Phone: (215) 665-0308 x6251


FAX: (215) 665-0121

Pittsburgh Frick Building North Mezzanine Pittsburgh , PA Kevin O'Connor, PE

15219 Phone: (412) 201-4900 x2300


FAX: (412) 201-2338

State College 328 Innovation Blvd. Suite 222 State College , PA Karen Thom

16803 Phone: (814) 867-4566 x3232


FAX: (814) 867-4572

CDM Smith Inc. Main 503 Martindale Street Pittsburgh , PA

(001670) 15212 Phone: (412) 201-5500


FAX: (412) 231-0301

Harrisburg 2808 Old Post Road Harrisburg , PA David Marchese, P.E.

17110 Phone: (717) 541-4001


FAX: (717) 541-4050

Lancaster 205 Granite Run Drive Lancaster , PA Randy L. Henne, P.E., Principal

17601 Phone: (717) 560-7500


FAX: (717) 560-7525

Philadelphia 2 Penn Center Plaza Philadelphia , PA Dan Gerrity, Senior Vice President

19102 Phone: (215) 636-0600


FAX: (215) 636-9811

Pittsburgh 503 Martindale Street Pittsburgh , PA Robert W. Pintar Jr., P.E., Vice President

15212 Phone: (412) 201-5500


FAX: (412) 231-0301

CDR Maguire Inc. Main D.L. Clark Building, Suite 610 Pittsburgh , PA

(000116) 15212-5746 Phone: (412) 322-8340 x107


FAX: (412) 322-2138

CDR Maguire Inc. - Boston, MA 211 Congress Street, 11th Floor Boston , MA Richard Bernardo

02110 Phone: (617) 778-1440


FAX: (617) 348-2143

CDR Maguire Inc. - Portsmouth, NH 195 New Hamsphire Avenue Portsmouth , NH Richard Bernardo

03801 Phone: (603) 433-0004


FAX: (603) 433-0006

CDR Maguire Inc. - Providence, RI 225 Chapman Street Providence , RI Richard Bernardo

02905 Phone: (401) 272-6000


FAX: (401) 272-9185

CDR Maguire Inc. - Rocky Hill, CT 2080 Silas Deane Highway Rocky Hill , CT Richard Bernardo

06067 Phone: (860) 224-9141


FAX: (860) 563-3188

CECO Associates, Inc. Main Scranton Electric Building Scranton , PA

(000081) 18503 Phone: (570) 342-3101


FAX: (570) 342-3940

CEDARVILLE Engineering Group, LLC Main 1094 Laurelwood Road Pottstown , PA

(006999) 19465 Phone: (610) 705-4500


FAX: (610) 705-4900

CEDG, Inc. Main 5000 Ritter Road Mechanicsburg , PA

(002644) 17055 Phone: (717) 691-8050


FAX: (717) 691-8055

Cenkner Engineering, Inc. Main 916 Claypike Road Acme , PA

(003812) 15610 Phone: (724) 424-3800


FAX: (724) 424-3811

CenterPoint Engineering, Inc. Main 2 Market Plaza Way Mechanicsburg , PA

(006779) 17055 Phone: (717) 795-8575


FAX: (717) 795-9110

Century Engineering, Inc. Main 10710 Gilroy Road Hunt Valley , MD

(001485) 21031 Phone: (443) 589-2400


FAX: (443) 589-2401

Harrisburg, PA 1414 North Cameron Street Harrisburg , PA David Mooney

17103 Phone: (717) 260-0102


FAX: (717) 260-0112

New Cumberland, PA 200 Airport Road New Cumberland , PA Troy M. Holloway

17070 Phone: (717) 901-7055 x3111


FAX: (717) 901-7059

Ceptdr, Inc. Main Northampton Hills Churchville , PA

(001426) 18966-1403 Phone: (215) 396-9523


FAX: (215) 396-9593

Certified Testing Laboratories, Inc. Main 754 E. Fairview Street Bethlehem , PA

(000155) 18018 Phone: (610) 865-2674


FAX: (610) 974-9215

CES Engineering, LLC Main 905 Loring Lane Mechanicsburg , PA

(007730) 17055 Phone: (717) 795-8969


FAX: (717) 795-8969

CFA Consultants Main 157 Pelham Road Philadelphia , PA

(006803) 19119-2661 Phone: (215) 438-6249


FAX: (215) 848-1099

CGC Geoservices, LLC Main 5400 Limestone Road Wilmington , DE

(006371) 19808 Phone: (302) 489-2398


FAX: (302) 489-2395

CGH Pavement Engineering, Inc. Main 4913 Gettysburg Road Mechanicsburg , PA

(000046) 17055 Phone: (717) 691-7625


FAX: (717) 691-8211

CHA Consulting, Inc. Main III Winners Circle Albany , NY

(006532) 12205 Phone: (518) 453-4500


FAX: (518) 453-2873

Coraopolis 1187 Thorn Run Extension Coraopolis , PA Jeffrey P. Hans

15108-3198 Phone: (412) 264-0370


FAX: (412) 264-0372

King of Prussia 1008 West 8th Avenue King of Prussia , PA Theodore Otteni

19406-1346 Phone: (610) 992-1465


FAX: (610) 992-5254

Scranton 1 Montage Mountain Road Moosic , PA Robert L. Naugle, Jr.

18507 Phone: (570) 341-1313 x228


FAX: (570) 341-9644

CHA, Inc. Main III Winners Circle Albany , NY

(004949) 12205 Phone: (412) 264-0370


FAX: (412) 264-0372

Coraopolis 1187 Thorn Run Extension Coraopolis , PA Jeffrey P. Hans

15108-3198 Phone: (412) 264-0370


FAX: (412) 264-0372

King of Prussia 1008 West 8th Avenue King of Prussia , PA Theodore Otteni

19406-1346 Phone: (610) 992-1465


FAX: (610) 992-5254

Scranton 1 Montage Mountain Road Moosic , PA Robert L. Naugle, Jr.

18507 Phone: (570) 341-1313 x228


FAX: (570) 341-9644

Chambers Environmental Group, Inc. Main 629 E. Rolling Ridge Drive Bellefonte , PA

(002955) 16823 Phone: (814) 355-2241


FAX: (814) 355-2410

Charles E. Shoemaker, Inc. Main 1007 Edge Hill Road Abington , PA

(004704) 19001 Phone: (215) 887-2165


FAX: (215) 576-7791

Charter Contracting Corporation Main 468 PARK DRIVE CAMPBELL , OH

(004799) 44405-1230 Phone: (330) 755-2205


FAX: (330) 755-2209

Chas. H. Sells, Inc. d/b/a WSP - Sells Main Two Penn Center Philadelphia , PA

(003184) 19102-1706 Phone: (215) 854-6388


FAX: (215) 569-0216

Cherry, Weber & Associates, P.C. Main 755 Memorial Parkway Phillipsburg , NJ

(000486) 08865 Phone: (908) 454-3080


FAX: (908) 454-1397

Cherry, Weber & Associates (Freehold) 20 Gibson Place, Suite 100 Freehold , NJ Theodore A. Giannechini, P.E., P.P., P.L.S.

07728 Phone: (732) 303-8700


FAX: (732) 303-8710

Cherry,Weber/VanCleef Engineering (Bethlehem) 520 N. New Street Bethlehem , PA Mark Bahnick, P.E.

18018 Phone: (610) 258-4717


FAX: (610) 332-1771

Cherry,Weber/VanCleef Engineering(Doylestown) 501 North Main Street Doylestown , PA Sam Costanzo, P.E.

18901 Phone: (215) 345-1876


FAX: (215) 345-1730

Cherry,Weber/VanCleef Engineering(Wyomissing) 4 Wellington Blvd Wyomissing , PA Brian Focht, P.E.

19610 Phone: (610) 670-6630


FAX: (610) 640-4603

Chester Engineers, Inc. Main 260 Airside Drive Moon Township , PA

(000412) 15108 Phone: (412) 809-6600


FAX: (412) 809-6611

Charleroi, PA 501 McKean Avenue Charleroi , PA Joseph Cusick

15022 Phone: (724) 483-4081


FAX: (724) 483-5690

Grant Street (Pittsburgh, PA) 601 Grant Street Pittsburgh , PA Dennis Simon

15219 Phone: (412) 201-2409


FAX: (412) 209-2614

Moon Township, PA 1555 Coraopolis Heights Road Moon Township , PA Robert O. Agbede

15108 Phone: (412) 809-6600


FAX: (412) 809-6611

Penn Avenue (Pittsburgh, PA) Penn Liberty Plaza 1 Pittsburgh , PA William Sukenik, P.E.

15222 Phone: (412) 232-4410


FAX: (412) 232-4420

State College, PA 1315 West College Avenue State College , PA Robert Warren

16801 Phone: (814) 231-2170


FAX: (814) 231-2174

Chester Valley Engineers, Inc. Main 83 Chestnut Road Paoli , PA

(005347) 19301-1559 Phone: (610) 644-4623 x134


FAX: (610) 889-3143

Cheyney University of Pennsylvania Disadvantaged Business Enterprise Supportive Services Center Main P.O. Box 527 Cheyney , PA

(002720) 19319-0200 Phone: (610) 399-2093


FAX: (610) 399-2118

Chiappetta Agency, Inc. Main 1225 8th Avenue Beaver Falls , PA

(004997) 15010 Phone: (724) 846-5441


FAX: (724) 846-5540

Chilton Engineering, Inc. Main 2 Executive Campus, Suite 300 Cherry Hill , NJ

(000105) 08002-4102 Phone: (856) 663-4900


FAX: (856) 663-8865

Chilton Engineering, Inc. 12200 Ford Road Dallas , TX Elaine Gu

75234 Phone: (860) 593-0613


Chitester Management Systems, Inc. Main 216 Haddon Avenue Westmont , NJ

(004068) 08108 Phone: (856) 854-8000


FAX: (856) 854-8088

Choates General Contracting Inc. Main PO BOX 46313 PHILADELPHIA , PA

(007775) 19160-6313 Phone: (267) 978-3040 x0


CHPlanning Main 1429 Walnut St. Philadelphia , PA

(000233) 19102 Phone: (215) 751-1400 x206


FAX: (215) 751-1414

Christine Davis Consultants, Inc. Main 560 Penn Street Verona , PA

(000238) 15147-1123 Phone: (412) 826-0443


FAX: (412) 826-0458

Christine M. Andreas dba Andreas & Associates Main 114 W. Franklin Ave. Pennington , NJ

(008063) 08534 Phone: (609) 730-9681


FAX: (609) 730-9758

Chronicle Consulting, LLC Main 167 Dickson Avenue Pittsburgh , PA

(004112) 15202 Phone: (412) 720-0602


FAX: (412) 291-1005

Oxford / Chester Project Office 425 Sixth Avenue, Suite 2750 Pittsburgh , PA Christen Cieslak, PE, LEED AP

15219 Phone: (412) 325-3005


FAX: (412) 393-0204

CHRS, Inc. Main 451 North Cannon Avenue, Suite 100B Lansdale , PA

(000147) 19446 Phone: (215) 699-8006


FAX: (215) 699-8901

Chu & Gassman, Inc. Main 559 Union Avenue Middlesex , NJ

(003892) 08846 Phone: (732) 563-4550


FAX: (732) 563-4549

Churchill, P.C., d.b.a. Churchill Consulting Engineers (a Professional Corporation) Main Suite A Berlin , NJ

(006467) 08009 Phone: (856) 767-6901 x26


FAX: (856) 767-6901

Ch2M Hill, Inc. Main 1717 Arch Street Philadelphia , PA

(000107) 19103 Phone: (215) 640-9057


FAX: (215) 563-3828

PGH Five Penn Center West Pittsburgh , PA Kevin Slack

15276 Phone: (412) 249-6652


PHL 1717 Arch Street Philadelphia , PA Chris Peluso

19103 Phone: (215) 563-4220


FAX: (215) 563-3828

Ciampitti Associates, P.C. Main 1023 E. Baltimore Pike, Suite 302 Media , PA

(001421) 19063 Phone: (610) 891-0591


FAX: (610) 891-0590

CIBER, Inc. Main 6363 Fiddler's Green Circle Greenwood Village , CO

(001828) 80111 Phone: (717) 691-5500 x119


FAX: (717) 691-7102

Cintec America Inc Main 5506 Connecticut Ave #28 Washington , DC

(001674) 20015 Phone: (800) 363-6066


FAX: (800) 461-1862

Citilabs, Inc. Main 1503 Grant Rd. Mountain View , CA

(007203) 94040 Phone: (888) 770-2823 x13


FAX: (888) 771-2823

City of Easton Main 1 S 3rd Street Easton , PA

(005775) 18042 Phone: (610) 250-6680


FAX: (610) 250-6789

City of Easton Main 1 S. 3rd Street Easton , PA

(006376) 18042 Phone: (610) 250-6683


FAX: (610) 250-6789

City of Philadelphia Department of Streets Main 1401 JFK Boulevard Philadelphia , PA

(001771) 19102 Phone: (215) 686-5537


FAX: (215) 686-5182

City of Philadelphia Department of Streets Main 830 Municipal Services Building Philadelphia , PA

(002748) 19102 Phone: (215) 686-5514


FAX: (215) 686-5182

CityVisions Associates LLC Main 604 South Third Street Louisville , KY

(006101) 40202 Phone: (502) 561-7885


FAX: (502) 584-9414

Civic Solutions LLC Main 1910 Larchmont Place Mount Laurel , NJ

(005772) 08054 Phone: (609) 423-5896


FAX: (609) 571-1933

Civil & Environmental Consultants, Inc. Main 333 Baldwin Road Pittsburgh , PA

(000109) 15205-9702 Phone: (412) 249-3137


FAX: (412) 429-2114

Civil & Environmental Consultants - Export 4000 Triangle Lane, Suite 200 Export , PA David N. Olson, P.G.

15632 Phone: (800) 899-3610 x6322


Civil & Environmental Consultants - Ind. 1 North Pennsylvania Street Indianapolis , IN Aaron C. Hurt, P.E.

46204 Phone: (877) 746-0749


Civil & Environmental Consultants, Inc. - Cin 4274 Glendale Milford Road Cincinnati , OH John R. Imbus, P.E.

45242 Phone: (800) 759-5614 x3503


Civil & Environmental Consultants, Inc. - Col 8740 Orion Place, Suite 100 Columbus , OH John M. DiNunzio, P.G.

43240 Phone: (888) 598-6808 x302


Civil & Environmental Consultants, Inc. - Nas 405 Duke Drive Nashville , TN Gregory D. Kugler

37067 Phone: (800) 763-2326 x4333


Civil & Environmental Design Group, Inc. Main 5000 Ritter Road, Suite 203 Mechanicsburg , PA

(000250) 17055 Phone: (717) 691-8050


FAX: (717) 691-8055

Civil Crossroads Consulting Engineers, LLC Main 122 Route 390 Cresco , PA

(006569) 18326 Phone: (570) 839-8424


Civil Design Partners, Inc. Main 1310 Church Street Moscow , PA

(005951) 18444 Phone: (570) 842-4310


FAX: (570) 842-7537

CJ Construction Management LLC Main 4901 Penn Avenue Pittsburgh , PA

(006131) 15224 Phone: (412) 760-3004


CJL Engineering, Inc. Main 1555 Coraopolis Heights Road Moon Township , PA

(006323) 15108 Phone: (412) 262-1220


FAX: (412) 262-2972

CKG Architects Main 814 W. Venango St. Philadelphia , PA

(002145) 19140 Phone: (215) 228-8150


FAX: (215) 225-2192

CKS Engineers, Inc. Main 88 South Main Street Doylestown , PA

(001937) 18901 Phone: (215) 340-0600


FAX: (215) 340-1655

Clarion Concrete Testing, LLC Main 1013 Lemans Rd St.Marys , PA

(007200) 15857-3390 Phone: (814) 590-1375


FAX: (877) 242-2016

Clarion Trinity Development Company, LLP Main 1443 Spruce Road Summerville , PA

(002508) 15864 Phone: (814) 764-5652


FAX: (814) 764-5652

Clarion University of PA Main 210 Carrier Hall Clarion , PA

(000385) 16214 Phone: (814) 393-2233


FAX: (814) 393-2015

Clark Patterson Engineers, Surveyor & Architects, PC d/b/a Clark Patterson Lee Main 205 St Paul Street Rochester , NY

(005640) 14604 Phone: (585) 454-4570 x1033


FAX: (585) 232-5836

Clark Resources, Inc. Main 321 North Front Street Harrisburg , PA

(004346) 17101 Phone: (717) 230-8861


FAX: (717) 230-8870

Clark Testing Services, LLC Main 1801 Route 51 South Jefferson Hills , PA

(007067) 15025 Phone: (412) 387-1021


FAX: (412) 387-1021

Clayton Group Services, Inc. Main Clayton Group Services, Inc. Novi , MI

(001822) 48374 Phone: (732) 225-6040


FAX: (732) 225-4577

Clear Solutions of Wexford Main 9853 Old Perry Highway Wexford , PA

(003016) 15090-9317 Phone: (412) 367-9764


FAX: (412) 367-9765

Clear Track Ahead, LLC Main 4001 Chapra Drive Wilmington , NC

(004528) 28412-2028 Phone: (910) 790-3511


FAX: (910) 798-0281

Clear View Strategies, LLC Main 158 48th Street Pittsburgh , PA

(002514) 15201 Phone: (412) 443-1746


Clearspan Construction Products, LLC Main 400 Unity Street Latrobe , PA

(005695) 15650 Phone: (724) 424-1001 x104


FAX: (724) 424-1006

CloSure Settlement & Abstracting Services, LLC Main R R 7 Box 947 Altoona , PA

(005363) 16601-9681 Phone: (814) 381-0640


FAX: (814) 944-2082

Closure Settlement, LLC Main 518 N. Center St Ebensburg , PA

(007341) 15931 Phone: (814) 419-8214


Cloud Gehshan Associates Inc. Main 400 Market Street Philadelphia , PA

(008327) 19106 Phone: (215) 829-9414 x241


FAX: (215) 829-9066

Clough Harbour & Associates, LLP Main III WINNERS CIRCLE ALBANY , NY

(000022) 12205 Phone: (412) 264-0370


FAX: (412) 264-0372

Philadelphia 1008 West 8th Avenue King of Prussia , PA Theodore D. Otteni, PE

19406-1344 Phone: (610) 992-1465


FAX: (610) 992-5254

Pittsburgh 1187 Thorn Run Ext. Coraopolis , PA Jeffrey P. Hans, PE

15108-3198 Phone: (412) 264-0370


FAX: (412) 264-0372

Scranton 1 Montage Moutain Road Moosic , PA Robert L. Naugle, Jr., PE

18507 Phone: (570) 341-1313 x228


FAX: (570) 341-9644

Clyde Company, Inc. Main 1800 S. Baltimore Tulsa , OK

(005662) 74119-5223 Phone: (918) 743-6201


CM Services Construction Management, LLC Main 506 Valleybrook Road McMurray , PA

(003820) 15317 Phone: (412) 281-5050


FAX: (412) 281-4877

CME Engineering LP Main 975 Georges Station Road, Suite 100 Greensburg , PA

(005666) 15601 Phone: (724) 672-4800


FAX: (724) 672-4801

CME Laboratories LP Main 975 Georges Station Road, Suite 100 Greensburg , PA

(005615) 15601 Phone: (724) 672-4800


FAX: (724) 672-4801

CMT Laboratories, Inc. Main 2701 Carolean Industrial Drive State College , PA

(000110) 16801 Phone: (814) 231-8845


FAX: (814) 231-8846

CMTS, LLC Main 9132 Cypress Green Drive Jacksonville , FL

(003117) 32256 Phone: (904) 739-9804


FAX: (904) 739-9816

CMX Main 1555 Bustard Road Kulpsville , PA

(000126) 19443-0304 Phone: (215) 361-6169 x128


FAX: (215) 361-6160

Allentown 941 Marcon Boulevard Allentown , PA Darrick Kreischer

18106-9553 Phone: (610) 266-3040 x108


FAX: (610) 266-3041

Exton 412 Creamery Way Exton , PA Russell Benner

19341 Phone: (610) 594-3500 x117


FAX: (610) 594-3503

Falls Township 188 Lincoln Highway Fairless Hills , PA James Sullivan

19303 Phone: (215) 946-3575 x106


FAX: (215) 946-3577

Lansdale 1555 Bustard Road Lansdale , PA Russell G. Benner

19446-5728 Phone: (215) 361-6050 x128


FAX: (215) 361-6160

Manalapan 200 State Highway Nine Manalapan , NJ Karl Pehnke

07726-0900 Phone: (732) 577-9000 x282


FAX: (732) 577-9888

Mechanicsburg 910 Century Drive Mechanicsburg , PA Edward Balsavage

17055-4351 Phone: (717) 458-0800 x110


FAX: (717) 458-0802

Pittsburgh 1122 Western Avenue Pittsburgh , PA Thomas Wm. McGrew

15233 Phone: (412) 316-7319


Cocciardi and Associates, Inc. Main 4 Kacey Court Mechanicsburg , PA

(001102) 17055-5596 Phone: (717) 766-4500


FAX: (717) 766-3999

Cochran Stephenson & Donkervoet Inc. Main CSD Baltimore , MD

(003575) 21029 Phone: (410) 539-2080 x1284


FAX: (410) 752-5263

CognisIT Advisors, LLC Main 1777 Sentry Parkway West Blue Bell , PA

(005734) 19422-2227 Phone: (267) 338-2700


FAX: (215) 525-6224

Coleman Environmental Engineering, LLC Main RR 1 Box 2320 Zion Grove , PA

(006784) 17985 Phone: (570) 233-0583


FAX: (570) 384-0376

Coleshill Associates LLC Main 11 Rose Valley Road Media , PA

(005752) 19063-4217 Phone: (610) 566-1133


FAX: (815) 550-8716

Collective Efforts, LLC Main 462 Perry Highway, 2nd Floor Pittsburgh , PA

(000225) 15229 Phone: (412) 459-0114


FAX: (412) 459-0117

Collins Engineers, Inc. Main 123 N. Wacker Drive Chicago , IL

(000241) 60606 Phone: (312) 704-9300


FAX: (312) 704-9320

Collins Engineers, Inc. 123 N. Wacker Drive Chicago , IL Janet L. Wackrow

60606 Phone: (312) 704-9300


FAX: (312) 704-9320

Columbia Inspection Service, Inc. Main 119 Ridge Drive Danville , PA

(005274) 17821 Phone: (570) 275-4648


FAX: (570) 275-4648

Commonwealth Engineering and Technology, Inc. T/A CET Engineering Services Main 1240 North Mountain Road Harrisburg , PA

(002429) 17112 Phone: (717) 541-0622 x179


FAX: (717) 541-8004

Doylestown Branch Office 3655 Rt. 202 Doylestown , PA Stanley J. Chilson, P.E.

18902 Phone: (215) 230-3663


FAX: (215) 230-3559

Huntingdon Branch Office 321 Washington Street Huntingdon , PA Raymond H. Myers, P.E., BCEE

16652 Phone: (814) 643-8260


FAX: (814) 643-8269

Community Networks, LLC Main 1110 Union Street Canonsburg , PA

(003958) 15317 Phone: (412) 921-2758


Community Planning Consultants Main 352 Futurity Drive Camp Hill , PA

(000269) 17011-4709 Phone: (717) 774-1430


FAX: (717) 774-1435

Compliance Environmental Services Inc Main 2700 Kirila Drive Hermitage , PA

(006136) 16148 Phone: (724) 342-1990


FAX: (724) 981-9030

Compliance EnviroSystems, LLC Main 1401 Seabord Drive Baton Rouge , LA

(004622) 70810 Phone: (225) 769-2933


FAX: (225) 769-2939

Compliance Management International, Inc. Main 1350 Welsh Road North Wales , PA

(007811) 19454 Phone: (215) 699-4800 x132


FAX: (215) 699-8315

Compliance Plus Services, Inc. Main 120 Gibraltar Road, Suite 210 Horsham , PA

(007509) 19044 Phone: (215) 734-1414 x208


FAX: (215) 734-1424

Compliance Solutions, Inc. Main 40 E. Pioneer Tr. Aurora , OH

(000886) 44202-9317 Phone: (330) 562-7198


FAX: (330) 562-2129

Compliance Training Partners, LLC Main 500 South Main Street Spring City , PA

(003499) 19475-2019 Phone: (610) 792-3844


FAX: (610) 948-6567

Computer Sciences Corporation Main 270 Salem Church Road Mechanicsburg , PA

(001046) 17050-2895 Phone: (717) 691-3010 x4220


FAX: (717) 691-3090

COMPUTRAN Main 100 First Street Hackensack , NJ

(000122) 07601 Phone: (201) 489-7500


FAX: (201) 487-5977

CONCORR, Inc. Main 45710 Oakbrook Court, Suite 160 Sterling , VA

(005522) 20166-7223 Phone: (571) 434-1852 x102


FAX: (571) 434-1851

ConCost Associates, Inc. Main 50 11th Avenue W. Newark , NJ

(003617) 07107 Phone: (973) 645-0111 x101


FAX: (973) 645-0113

Concrete Simplicity Consulting & Supply, LLC Main 1370 White Tail Alley Woodland , PA

(004840) 16881 Phone: (814) 857-7500


FAX: (814) 857-7394

Consoer Townsend Envirodyne Engineers, Inc. Main 303 East Wacker Drive Chicago , IL

(000273) 60601-5212 Phone: (312) 938-0300


FAX: (312) 938-1109

Pittsburgh Park West Two Pittsburgh , PA Timothy J. Kilberg

15275-1008 Phone: (412) 494-4646


FAX: (412) 494-4649

Consolidated Construction Products, Inc. Main Pittsburgh Ave. Coraopolis , PA

(005399) 15108 Phone: (412) 299-1117


FAX: (412) 262-3444

Constellation Design Group, Inc. Main 57 W. Timonium Road Timonium , MD

(007141) 21093 Phone: (410) 252-1884


Construction Consultant Services, Inc. Main 1121 Boyce Road Pittsburgh , PA

(000138) 15241 Phone: (724) 942-4860


FAX: (724) 942-4863

Construction Engineering Consultants, Inc. Main 2018 Waverly Street Pittsburgh , PA

(003973) 15218-2402 Phone: (412) 351-6465


FAX: (412) 351-6401

Construction Journal, Inc. Main 759 South Federal Highway Suite# 300 Stuart , FL

(003021) 34994-2923 Phone: (800) 785-5165 x440


FAX: (800) 669-7028

Construction Methods and Coordination, Inc., dba CMC Engineering Main P.O. Box 958 Kimberton , PA

(000023) 19442 Phone: (610) 983-9200


FAX: (610) 983-9202

Altoona Area Allegheny Professional Centre Duncansville , PA Ms. Patricia Zabinski

16635 Phone: (814) 696-2666


FAX: (814) 696-2677

Pittsburgh Area 1035 Boyce Rd., Suite 120 Upper St. Clair , PA Anthony J DiFrancesco, Jr.

15241 Phone: (412) 257-9666


FAX: (412) 257-3521

Wilkes-Barre 189 Market St., Suite #3 Kingston , PA Thomas J. Stepanski, P.E.

18704 Phone: (570) 288-5882


FAX: (570) 288-5889

Construction Performance Management, LLC Main 113 Castle Shannon Blvd Pittsburgh , PA

(002834) 15228-2230 Phone: (412) 726-0454


FAX: (412) 726-0453

Construction Project Management Services, Inc. Main 707 Alexander Road Princeton , NJ

(004719) 08540 Phone: (609) 951-9401


FAX: (609) 951-9402

Philadelphia Office 1735 Market Street, Suite A466 Philadelphia , PA Eugene Marsh

19103 Phone: (609) 209-9609


FAX: (609) 951-9402

Construction Technology Laboratories, Inc. dba CTLGroup Main 5400 Old Orchard Road Skokie , IL

(002036) 60077-1030 Phone: (847) 965-7500 x3262


FAX: (847) 965-6541

CTLGroup 10480 Little Patuxent Parkway Columbia , MD Steve Smith

21044 Phone: (410) 997-0400


FAX: (410) 997-8480

CONTINENTAL ACQUISITION SERVICES INC Main PO Box 915 Bedford , NY

(006748) 10506 Phone: (703) 451-5577


FAX: (703) 451-1055

Continental Concrete Products, Inc. Main 1 South Grosstown Road Pottstown , PA

(005002) 19464 Phone: (610) 327-3700 x227


FAX: (610) 327-9488

Continental Mapping Consultants, Inc. Main 121 S. Bristol Street, Suite 201 Sun Prairie , WI

(007409) 53590 Phone: (888) 817-3327


Continental Placer Inc. Main 2 Winners Circle Albany , NY

(006050) 12205 Phone: (518) 458-9203 x303


FAX: (518) 458-9206

Continental Placer Inc., PA 5010 Lenker Street Mechanicsburg , PA Nate Moore

17050-2440 Phone: (717) 968-0188 x101


FAX: (717) 975-2637

Converse Consultants Main 2738 West College Avenue State College , PA

(000215) 16801 Phone: (814) 234-3223


FAX: (814) 234-3255

Coon & Company Main 1917 Spring Road Carlisle , PA

(004615) 17013-1196 Phone: (717) 243-8257


FAX: (717) 243-5981

Cooper, Robertson & Partners LLP Main 311 W 43rd St New York , NY

(006110) 10036 Phone: (212) 247-1717


FAX: (212) 245-0361

Cope Linder Architects Main 30 South 15th Street Philadelphia , PA

(002437) 19102 Phone: (215) 981-0200 x116


FAX: (215) 569-8651

Copley Wolff Design Group, Inc. Main 160 Boylston Street - 3rd Floor Boston , MA

(006025) 02116 Phone: (617) 654-9000


FAX: (617) 654-9002

Core Compliance Group, Inc. Main 131 Glenbrook Drive Cranberry Township , PA

(003382) 16066 Phone: (724) 612-5418


FAX: (412) 291-1350

CORE Environmental Servcies, Inc. Main 4068 Mt. Royal Blvd. Allison Park , PA

(000391) 15101-2951 Phone: (412) 487-6000


FAX: (412) 487-9785

Allison Park 4068 Mt. Royal Blvd. Allison Park , PA Stephen A. Zbur

15101 Phone: (412) 487-6000


FAX: (412) 487-9785

Morgantown 4 Brookstone Plaza Morgantown , WV Tom Rebar, LRS

26508 Phone: (304) 292-2673


FAX: (304) 292-2773

Cornerstone Consulting Engineers & Architectural, Inc. Main 1176 N. Irving St. Allentown , PA

(004552) 18109 Phone: (610) 820-8200 x101


FAX: (610) 841-9647

Cornerstone Consulting Engineers & Architectu 213 W. Main St. Lansdale , PA John Anderson

19446 Phone: (215) 362-2600 x105


FAX: (215) 362-8400

Corrosion Control Consultants & Labs, Inc. Main 4403 Donker Ct. S.E. Kentwood , MI

(000188) 49512-4054 Phone: (616) 940-3112


FAX: (616) 940-8139

CCC&L - Chicago Area - IL 135 Addison Ave., Suite 108 Elmhurst , IL Tim Race

60126 Phone: (630) 834-3811

FAX: (630) 834-3812

CCC&L - East Coast Office-MD 848 North Shore Drive Glen Burnie , MD Dr. Lloyd M. Smith

21060 Phone: (410) 439-1740


FAX: (410) 439-1742

CCC&L - NE Office - NH 235 Heritage Ave., Suite B Portsmouth , NH Jon Cavallo, P.E.

03801 Phone: (603) 431-1919


FAX: (603) 431-2540

Corrpro Companies Inc. Main 50 Tennessee Avenue Ocean City , NJ

(000295) 08226 Phone: (609) 399-2417


FAX: (609) 399-5233

Corrpro - Bronx 127 Lincoln Ave. Bronx , NY Chris Farschon

10454-4432 Phone: (609) 399-2417


FAX: (609) 399-5233

Corrpro - West Chester 610 Brandywine Parkway West Chester , PA Jim Jamieson

19380-4278 Phone: (610) 344-7002

Corven Engineering, Inc. Main 2882 Remington Green Circle Tallahassee , FL

(001025) 32308 Phone: (850) 386-6800 x101


FAX: (850) 386-9374

Cosmos Technologies, Inc. Main Riverside Innovation Center Pittsburgh , PA

(003262) 15212 Phone: (412) 321-3951


FAX: (412) 321-3954

Coughenour Engineering, Inc. Main 235 Clarence Street Hyndman , PA

(005986) 15545-0039 Phone: (814) 842-9722


FAX: (814) 842-9422

Coukart & Associates, Inc. Main 500 Vine Street New Berlin , PA

(007666) 17855 Phone: (570) 966-2860


County of Allegheny Main Room 501 Pittsburgh , PA

(003299) 15219 Phone: (412) 350-4430


FAX: (412) 350-3586

Cowan Associates, Inc. Main 120 Penn-Am Drive Quakertown , PA

(003697) 18951 Phone: (215) 536-7075 x132


FAX: (215) 536-1582

CP Environmental Group, Inc. Main 1092 Fifth Avenue New Kensington , PA

(002742) 15068-6234 Phone: (724) 594-1900 x238


FAX: (724) 339-1955

Craig Test Boring Co., Inc. Main 5435 Harding Highway Mays Landing , NJ

(001499) 08330 Phone: (609) 625-4862


FAX: (609) 625-4306

Craig Testing Laboratories, Inc. Main 5439 Harding Highway Mays Landing , NJ

(007728) 08330-9997 Phone: (609) 625-1700 x141


FAX: (609) 625-1798

Crawford Consulting Services, Inc. Main 239 Highland Avenue East Pittsburgh , PA

(000469) 15112-1518 Phone: (412) 823-0400 x230


FAX: (412) 823-2004

Crawford Environmental Services, LLC. Main 195 Proudfoot Drive Birdsboro , PA

(007631) 19508 Phone: (610) 858-2172


Criterium-Peters Engineers, Inc. Main 100 Robbins Avenue Berwick , PA

(000956) 18603 Phone: (570) 752-4433


FAX: (570) 752-4434

Berwick Branch 100 Robbins Avenue Berwick , PA Melanie Bove

18603 Phone: (570) 752-4433


FAX: (570) 752-4434

Bloomsburg office 40 West Main Street Bloomsburg , PA Sherry L. Horcha

17815 Phone: (570) 387-0334


FAX: (570) 387-0440

Critical Path Consultants, LLC Main 1103 Madison Avenue Painesville , OH

(005287) 44077 Phone: (440) 853-8000


FAX: (440) 853-8000

Critigen LLC Main 6161 S. Syracuse Way Greenwood Village , CO

(006863) 80111-4707 Phone: (303) 706-0990


FAX: (303) 706-1861

Crystal Engineering Main 568 anyroad little town , PA

(006577) 17999 Phone: (570) 222-5555


CSA Central Architects and Engineers, PC Main 1341 N. Delaware Ave Philadelphia , PA

(006348) 19125 Phone: (215) 427-8750


FAX: (215) 427-8752

CSA Central, Inc. Main 1341 N. Delaware Ave. Philadelphia , PA

(008296) 19125 Phone: (215) 427-8700


FAX: (215) 427-8752

CSA Central, Inc. 6100 Blue Lagoon Drive Miami , FL Roberto Leon

33126 Phone: (305) 461-5484

FAX: (305) 461-5494

Cservak Management Services, LLC Main 506 Valleybrook Road McMurray , PA

(002085) 15317 Phone: (412) 281-5050


FAX: (412) 281-4877

CTC, Inc. Main CTC, Inc. Fort Worth , TX

(007706) 76109-3985 Phone: (817) 886-8210


FAX: (817) 886-8225

CTI and Associates, Inc. Main 51331 W. Pontiac Trail Wixom , MI

(004416) 48393 Phone: (248) 486-5100 x223


FAX: (248) 486-5050

Cultural Resource Analysts, Inc. Main 151 Walton Ave Lexington , KY

(006158) 40508 Phone: (859) 252-4737


FAX: (859) 254-3747

West Virginia Office 3556 Teays Valley Road Hurricane , WV C. Michael Anslinger

25526 Phone: (304) 562-7233


FAX: (304) 562-7235

Cutting Edge Concrete Specialists, LLC Main 1500 CLYDE WAITE DRIVE BRISTOL , PA

(003380) 19007 Phone: (215) 788-7616


FAX: (215) 788-7614

CV Engineering Main 4840 McKnight Road Pittsburgh , PA

(000200) 15237 Phone: (412) 364-2180


FAX: (412) 364-8922

CWM Environmental, Inc Main 11931 State Route 85 Kittanning , PA

(002900) 16201 Phone: (724) 543-3011


FAX: (724) 543-6768

Cynthia M Wilber D/B/A MTS Electric Main 45 Melvin Avenue Bradford , PA

(003480) 16701-1849 Phone: (814) 589-3201


FAX: (814) 362-2989

Czop/Specter, Inc. Main 1000 Madison Avenue Norristown , PA

(000381) 19403 Phone: (484) 831-5795


FAX: (484) 831-5942

CZOP/SPECTER, INC. ERIE 240 West 11th Street Erie , PA Mark Kukla

16501 Phone: (814) 454-1263


FAX: (814) 454-1290

D & D Engineering, Inc. Main 35 Wilson St. Pittsburgh , PA

(004160) 15223 Phone: (412) 784-1560


FAX: (412) 784-1561

D & R Coatings Inspection, LLC Main 2305 William Circle Ennis , TX

(006385) 75119-7661 Phone: (972) 875-6491


FAX: (972) 875-6848

D. C. Gohn Associates, Inc. Main 32 Mount Joy Street Mount Joy , PA

(004438) 17552 Phone: (717) 653-5308


D. L. McQuaid & Associates, Inc. Main 2306 Cassidy Drive Bethel Park , PA

(005943) 15102 Phone: (412) 831-9177


FAX: (412) 851-4116

D. W. Kozera, Inc. Main 1408 Bare Hills Road Baltimore , MD

(003093) 21209 Phone: (410) 823-1060


FAX: (410) 823-1062

D.P. Girondo Associates, LLC Main 724 Inverness Drive Horsham , PA

(007846) 19044-1835 Phone: (215) 657-4864


D.S. Winokur Associates,Inc Main 140 Terry Drve Newtown , PA

(000213) 19053 Phone: (215) 750-9900 x101


FAX: (215) 750-8474

DAAR Engineering, Inc. Main 518 W. Cherry St Milwaukee , WI

(004789) 53212-3822 Phone: (414) 225-9817


FAX: (414) 225-9816

Damiano Long of PA, LLC Main 1300 Horizon Drive, Suite 108 Chalfont , PA

(001362) 18914 Phone: (267) 308-0300


FAX: (267) 308-0301

Daniel Consultants, Inc. Main 479 Rolling Road Rosemont , PA

(000543) 19010 Phone: (410) 995-0090 x16


FAX: (410) 992-7038

Daniel Consultants 479 Rolling Rd Bryn Mawr , PA Korah Mani

19010 Phone: (610) 527-7250


FAX: (610) 527-7917

Main 8950 Route 108 East Columbia , MD K. Mammen Daniel

21045 Phone: (410) 995-0090 x16


FAX: (410) 992-7038

Data Resource Group Main 33 South 6th Street Minneapolis , MN

(003859) 55402 Phone: (612) 371-6902 x120


FAX: (612) 339-0585

Data Vision Group, LLC Main 88 E. MAIN ST MENDHAM , NJ

(008098) 07945 Phone: (973) 387-8477 x106


FAX: (973) 387-8499

David Blackmore & Associates, Inc. Main 3335 West Ridge Pike Pottstown , PA

(004991) 19464-3448 Phone: (610) 495-6255


FAX: (610) 495-7353

David D. Klepadlo & Associates Inc. Main David D. Klepadlo & Associates Inc. Moosic , PA

(000015) 18507 Phone: (570) 457-1677


FAX: (570) 451-0670

David E. Wooster and Associates, Inc. Main 2 East Crafton Avenue Pittsburgh , PA

(004823) 15205-2804 Phone: (412) 921-3303


FAX: (412) 921-2609

State College Office 341 Science Park Road State College , PA Doug Hill, P.E.

16803 Phone: (814) 231-2113


FAX: (814) 231-2115

David Evans and Associates, Inc. Main 2100 SW River Parkway Portland , OR

(005874) 97201 Phone: (503) 223-6663


David Miller/Associates, Inc. Main 1076 Centerville Road Lancaster , PA

(006631) 17601 Phone: (717) 898-3402 x16


FAX: (717) 898-9365

David R. Schmidt dba The David R. Schmidt Company, Inc. Main 2912 Salford Drive Abingdon , MD

(002814) 21009-1802 Phone: (410) 569-7080


FAX: (410) 569-6174

David See d/b/a David See Surveyors Main PO Box 1704 Warren , PA

(006752) 16365 Phone: (814) 723-7522


David Sheydwasser DBA David Sheydwasser, Architect Main 57 Third Avenue Kingston , PA

(006505) 18704-5723 Phone: (570) 331-0259


FAX: (570) 331-0259

Davis Consulting Services, LLC Main 6109 Loriella Pike Drive Fredericksburg , VA

(003302) 22407 Phone: (540) 408-3325


FAX: (540) 785-5984

Dawn Engineering, Inc. Main 11 Village Court Hazlet , NJ

(001182) 07748 Phone: (732) 739-8844


FAX: (732) 739-8870

Dawn Underground Engineering, INC. Main 10 Village Court Hazlet , NJ

(005762) 07730 Phone: (732) 739-8840


FAX: (732) 739-8870

Dawood Engineering, Inc. Main 2020 Good Hope Road Enola , PA

(000019) 17025-1237 Phone: (717) 732-8576


FAX: (717) 732-8596

Grantville Office 10105 Allentown Boulevard Grantville , PA Nick Brien

17028-0287 Phone: (717) 469-0937


FAX: (717) 469-0938

Northern Tier Office 356 Loder Street Sayre , PA Richard Biery

18840 Phone: (570) 731-4455


FAX: (570) 731-4560

Philadelphia Regional office 950 West Valley Road Wayne , PA Tom Rowader

19087 Phone: (717) 877-4598


FAX: (717) 469-0938

Pittsburgh Office 11 Grandview Circle Canonsburg , PA Ron Carrola

15317-9557 Phone: (724) 746-0730


FAX: (724) 746-0732

Dayton Inspection Services, Inc. Main 110 Oakford Avenue Delanco , NJ

(003099) 08075 Phone: (856) 824-1010


FAX: (856) 824-1080

dck North America, LLC Main 1900 State Route 51 Large , PA

(004824) 15025 Phone: (412) 384-1000


FAX: (412) 384-1150

dck North America, LLC / King of Prussia 601 S. Henderson Road King of Prussia , PA Timothy R. O'Brien, P.E.

19406 Phone: (610) 265-4807


FAX: (610) 265-4819

dck North America, LLC / State College 1044-1 Benner Pike State College , PA Don Woods

16801 Phone: (814) 861-7108


FAX: (814) 861-7113

Debra A. Kirkpatrick , R.L.A. d/b/a Landscape Architectural Design Main 725 Piketown Rd Harrisburg , PA

(005066) 17112 Phone: (717) 671-1636


Decision Distribution LLC Main 33 S. Delaware Avenue Yardley , PA

(003489) 19067-1347 Phone: (215) 493-4400


FAX: (215) 493-4471

Definitive Search Partners, LLC Main 2190 York Road Jamison , PA

(006393) 18929 Phone: (215) 321-0290 x432


FAX: (215) 343-6539

Deighton Associates Ltd Main 223 Brock St. N. Whitby , ON

(008032) L1N -4H6 Phone: (905) 665-6605


Deiss & Halmi Engineering, Inc. Main 105 Meadville Street Edinboro , PA

(004959) 16412-2507 Phone: (814) 734-3640


FAX: (814) 734-3643

Delaware County Transportation Management Association (DCTMA) Main 102 W. Front Street Media , PA

(008202) 19063-3208 Phone: (610) 892-9440


FAX: (610) 892-9460

Delaware River Joint Toll Bridge Commission Main 110 Wood Street Morrisville , PA

(003391) 19067 Phone: (215) 295-5061


FAX: (215) 295-4436

Delaware Valley Regional Planning Commission Main 111 S. Independence Mall East Phila , PA

(000378) 19106-2515 Phone: (215) 238-2863


FAX: (215) 592-9125

Delcan Inc. Main Delcan Corporation Schaumburg , IL

(000898) 60173-3853 Phone: (703) 752-6060 x113


FAX: (703) 752-6059

Deloitte Consulting LLP Main 300 Corporate Center Camp Hill , PA

(007831) 17011-1762 Phone: (717) 695-5200


Delta Development Group, Inc. Main 2000 Technology Parkway Mechanicsburg , PA

(003026) 17050-9407 Phone: (717) 441-9030 x9061


FAX: (717) 441-9056

Pittsburgh 9000 Brooktree Rd Wexford , PA Gary Antonella

15090 Phone: (724) 778-4005


FAX: (724) 778-4008

Delta Engineers, Architects, & Land Surveyors, P.C. Main 860 Hooper Road Endwell , NY

(003440) 13760 Phone: (607) 231-6600


FAX: (607) 231-6650

Delhi 97 Main Street, Suite 1 Delhi , NY Lee Marigliano, AIA

13753 Phone: (607) 746-3192


FAX: (607) 746-3194

Vernon 4873 NYS Route 5 Vernon , NY Bruce Snyder, PLS

13476 Phone: (315) 953-4200


FAX: (315) 953-4202

Delta Geophysics Incorporated Main 738 Front Street Catasauqua , PA

(005083) 18032-2354 Phone: (610) 231-3701


FAX: (610) 266-5343

Dennis E. Black Engineering, Inc. Main 2400 Philadelphia Avenue Chambersburg , PA

(005008) 17201 Phone: (717) 263-8794 x202


FAX: (717) 263-7052

McConnellsburg 222 North Second Street McConnellsburg , PA Glenn D. Watson

17233 Phone: (717) 263-8794 x202


FAX: (717) 263-7052

Dennis W. Auker, AICP Main 935 Herman Drive Mechanicsburg , PA

(000300) 17055 Phone: (717) 697-9344


Deno Bokas d/b/a Bokas Consulting Main 536 Leavenworth St. #1103 San Francisco , CA

(007601) 94109 Phone: (415) 407-3595


DePallo Design and Planning, LLC Main 320 Fayette Street Conshohocken , PA

(002093) 19428 Phone: (610) 828-1206


FAX: (610) 828-3161

Derck & Edson Associates, LLP Main 33 South Broad Street Lititz , PA

(002620) 17543 Phone: (717) 626-2054


FAX: (717) 626-0954

Design Support Services, LLC Main PO Box 531 Washington Crossing , PA

(000358) 18977-0531 Phone: (267) 243-4689


Design Workshop, Inc. Main 1390 Lawrence St., Ste. 200 Denver , CO

(005999) 80204 Phone: (303) 623-5186


FAX: (303) 623-2260

Desmone and Associates Architects Incorporated Main One Doughboy Square Pittsburgh , PA

(002092) 15201-1313 Phone: (412) 683-3230


FAX: (412) 683-3563

Devault Diesel Services, Inc. Main PO Box 506 Malvern , PA

(007925) 19355-1046 Phone: (610) 496-3017


FAX: (484) 318-7692

Development Facilitators, Inc. (DFI) Main I-97 Business Park Millersville , MD

(004233) 21108 Phone: (443) 308-2100 x110


FAX: (443) 308-2108

Dewatering Services LLC Main 134 Hines Lane Franklin , PA

(005628) 16323 Phone: (814) 437-3794


FAX: (814) 437-5846

Dewberry & Davis, Inc. Main 551 Piney Forest Road Danville , VA

(006701) 24543-1509 Phone: (434) 549-8498


Dewberry Consultants LLC Main 3106 Lord Baltimore Drive Baltimore , MD

(004994) 21244-5800 Phone: (410) 265-9500 x266


FAX: (410) 265-8875

Fairfax, VA 8401 Arlington Boulevard Fairfax , VA Kurt Thompson

22031-4666 Phone: (703) 849-0446


FAX: (703) 849-0537

Dewberry Engineers Inc. Main 101 Noble Boulevard Carlisle , PA

(000057) 17013-0340 Phone: (717) 240-0344


FAX: (717) 240-0466

Dewkett Engineering, P.C. Main 187 East Market Street Rhinebeck , NY

(004402) 12572 Phone: (845) 876-5250


FAX: (845) 876-7209

DHC Construction, Inc. Main 415 Foulke Lane Springfield , PA

(004848) 19064 Phone: (610) 585-1403


FAX: (610) 544-9875

Diane Y. Delozier, PE dba Delozier & Associates Main 940 Club House Road York , PA

(003342) 17403-4406 Phone: (717) 843-6911


FAX: (717) 843-2394

Dick Corporation Main 1900 State Route 51 Large , PA

(000097) 15025 Phone: (412) 384-1000


FAX: (412) 384-1150

Dick Corporation / King of Prussia 601 S. Henderson Road King of Prussia , PA Timothy O'Brien, P.E.

19406 Phone: (610) 265-4807


FAX: (610) 265-4819

Dick Corporation / State College 1044-1 Benner Pike State College , PA Don Woods

16801 Phone: (814) 861-7108


FAX: (814) 861-7113

Dieffenbauch & Hritz, LLC Main 12 Rousch Drive Morgantown , WV

(006596) 26501 Phone: (304) 985-5555


DiGioia, Gray & Associates, LLC Main 570 Beatty Road Monroeville , PA

(003993) 15146-1334 Phone: (412) 372-4500


FAX: (412) 372-1972

Digitexx Data Systems, Inc. Main 13880 N Northsight Blvd Scottsdale , AZ

(005339) 85260 Phone: (623) 242-1198 x107


FAX: (480) 922-4319

Dimmerling Consulting, Inc. Main Commonwealth Plaza Wyomissing , PA

(003751) 19610 Phone: (610) 898-8451


FAX: (610) 898-8449

DiPasquale Engineers, Incorporated Main 10200 Harmony Rd. Wexford , PA

(001655) 15090 Phone: (724) 759-7223


FAX: (724) 759-7223

Distinct Engineering Solutions, Inc. Main 656 Georges Road North Brunswick , NJ

(006570) 08902 Phone: (732) 658-1052


Diversified Property Services, Inc. Main 20 E. Timonium Road Timonium , MD

(004019) 21093 Phone: (410) 252-5075


FAX: (410) 252-8430

Diversified Property Services, Inc. PA 110 Charles Ave Stewartstown , PA Patricia Dablock

17363 Phone: (717) 993-2224

DIW Group, Inc. t/a Specialized Engineering Main 9607 Doctor Perry Road Ijamsville , MD

(005460) 21754 Phone: (301) 607-4180


FAX: (301) 607-4331

DKI Engineering & Consulting USA, P.C. Main 9 Turnberry Lane Clifton Park , NY

(004391) 12065-1104 Phone: (518) 373-4999


FAX: (518) 373-6657

DKS Associates, Inc. Main 12000 N. Dale Mabry Hwy Tampa , FL

(001660) 33618 Phone: (813) 962-5959


FAX: (813) 962-5744

DoCo Inc. Main 4241 Wells Valley Road Waterfall , PA

(000383) 16689 Phone: (814) 685-3015


FAX: (814) 685-3284

Domino Technologies, Inc. Main 5410 Bonnyrigg Court Mechanicsburg , PA

(003862) 17050 Phone: (717) 730-6265


FAX: (717) 754-0666

Don Weiner, PE, RCDD dba Don Weiner Associates Main 156 Hilltop Drive Churchville , PA

(002518) 18966 Phone: (215) 364-0911


FAX: (215) 364-2065

Donald C. Frederickson d/b/a Environmental Design & Engineering Main 54 MAIN STREET WEST EASTON , PA

(003058) 18042-6149 Phone: (610) 559-1000


FAX: (610) 258-6237

Donald E. Coles D/B/A Dharma Graphics Main 241 S 6th Street, Suite 808, Philadelphia , PA

(002859) 19106-3730 Phone: (215) 704-6535


Donald M. Franson D/B/A Franson Engineering and Surveying Main 304 Forest Avenue Bellefonte , PA

(001781) 16823 Phone: (814) 383-4550


FAX: (814) 383-9915

Donna H. Arthur DBA Donna Arthur Landscaping Main 4600-B Gettysburg Road Mechanicsburg , PA

(007283) 17055-4394 Phone: (717) 756-4733


DOT Quality Services, Inc. Main 742 N LaSalle Blvd Chicago , IL

(007688) 60654 Phone: (312) 285-5344


Doug Wynn - Herpetological Consulting Main 241 Chase Street Russell's Point , OH

(006497) 43348-9732 Phone: (614) 306-0313


Douglas A. Bartley d/b/a DBA Consulting,Inc. Main 108 Grant Avenue Wheeling , WV

(002864) 26003 Phone: (304) 243-0007


FAX: (304) 243-0008

Dovetail Consulting, Inc. Main 362 Valley Hill Rd Riverdale , GA

(003856) 30274 Phone: (770) 603-3113


FAX: (770) 603-6557

DOWNINGTOWN ENGINEERING CONSULTANTS Main 315E LANCASTER AVE DOWNINGTOWN , PA

(006049) 19335-2947 Phone: (610) 873-7187


FAX: (610) 450-6582

Dr. Edward J. Walter & Associates, Inc. Main 9241 Ravenna Road, C-6 Twinsburg , OH

(001824) 44087-2471 Phone: (330) 963-0540


FAX: (330) 963-0533

Boyertown - Eastern PA Areas -800-354-6375 P. O Box 199 Boyertown , PA Dale Bartholomae

19512 Phone: (610) 367-6068


FAX: (610) 367-7726

Gibsonia - Western PA Areas - 800-765-4033 4092 Gibsonia Road Gibsonia , PA Dave Havranek

15044 Phone: (724) 449-2221


FAX: (724) 449-2223

Dr. G. Sauer Corporation Main 560 Herndon Parkway Herndon , VA

(000256) 20170-5240 Phone: (703) 707-0700 x10


FAX: (703) 707-0703

DSC-NY 233 Broadway New York , NY Walter Mergelsberg

10279 Phone: (212) 542-2464


FAX: (212) 542-2465

Dresdner Robin Environmental Management, Inc. Main 371 Warren Street Jersey City , NJ

(001081) 07302 Phone: (201) 217-9200


FAX: (201) 217-9607

Asbury Park 605 Mattison Avenue Asbury Park , NJ Nicholas Noce

07712 Phone: (732) 988-7020 x25


FAX: (732) 988-7032

Camden 433 Market Street Camden , NJ Geoffrey Forrest

08102 Phone: (856) 968-9400


FAX: (856) 967-0015

Jersey City 371 Warren street Jersey City , NJ Geoffrey Forrest

07303 Phone: (856) 968-9400


FAX: (856) 968-0015

Drive Engineering Corp Main 595 Skippack Pike, Suite 400 Blue Bell , PA

(006044) 19422 Phone: (215) 367-5535


FAX: (888) 544-0270

DRM International, Inc. Main 4400 MacArthur Blvd., NW, Suite 301 Washington , DC

(006519) 20007 Phone: (202) 944-3390


FAX: (202) 625-0101

Duany Plater-Zyberk & Company, LLC Main 1023 Southwest 25th Avenue Miami , FL

(006026) 33135 Phone: (305) 644-1023


FAX: (305) 644-1021

Duffield Associates, Inc. Main 5400 Limestone Road Wilmington , DE

(004453) 19808 Phone: (302) 239-6634


FAX: (302) 239-8485

Duffield Associates Carlisle 801 Belvedere Street Carlisle , PA Garry Brennan

17013-4002 Phone: (717) 245-9100


Duffield Associates Phila 211 N. 13th Street, Suite 704 Philadelphia , PA Jennifer Gresh

19107 Phone: (215) 545-7295


FAX: (215) 875-7356

Dumack Engineering, P.C. Main 677 Durham Road Newtown , PA

(007087) 18940-9679 Phone: (215) 598-1230 x11


FAX: (215) 598-1232

Dunn Engineering Associates, P.C. Main 66 Main Street Westhampton Beach , NY

(001698) 11978-2632 Phone: (631) 288-2480


FAX: (631) 288-2544

DW LaSota Engineering, Inc. Main 901 6th Avenue Patton , PA

(005871) 16668 Phone: (814) 674-2650


FAX: (814) 674-2651

Dye Management Group, Inc. Main 10900 NE 4th Street Bellevue , WA

(006480) 98004 Phone: (425) 637-8010


FAX: (425) 637-8020

Dynatek Development Services, Inc. Main Dynatek Development Services, Inc. Youngstown , OH

(001287) 44505 Phone: (330) 759-8404 x204


FAX: (330) 759-8471

E & M Engineers and Surveyors, P.C. Main 24 Derrick Road Bradford , PA

(001588) 16701 Phone: (814) 362-5546


FAX: (814) 362-3023

E & M Engineers and Surveyors, P.C. 482 S. Cascade Drive Springville , NY Garrett Hacker

14753-0159 Phone: (716) 592-2851

E. G. & G., Inc. Main 388 South Main Street Akron , OH

(002040) 44311-1044 Phone: (330) 379-2790


FAX: (330) 379-2791

E. R. Conrad & Associates, LLC Main One Memory Lane Enola , PA

(002824) 17025 Phone: (717) 773-0913


FAX: (717) 728-3097

E.S.P. Associates, P.A. DBA E.S.P. Associates of North Carolina, INC. Main 3475 Lakemont Boulevard Fort Mill , SC

(008254) 29708 Phone: (803) 802-2440 x112


FAX: (803) 802-2565

E-Tech USA Inc Main 1933 The Woods II Cherry Hill , NJ

(003212) 08003 Phone: (856) 489-8384


FAX: (856) 489-8385

E-Three Corporation dba E3Synergy Main 10045 Red Run Blvd Owings Mills , MD

(003596) 21117 Phone: (410) 356-4400 x102


FAX: (410) 356-3011

EA Engineering, Science, and Technology, Inc. Main 11019 McCormick Road Hunt Valley , MD

(000401) 21031 Phone: (410) 771-4950


FAX: (410) 771-4204

Edgewood 1319 Woodbridge Station Way Edgewood , MD Scott Dobson

21040 Phone: (410) 538-8202 x1400


FAX: (410) 538-8207

Loveton 15 Loveton Circle Sparks , MD Michael S. Battle

21152 Phone: (410) 771-4950 x5140


FAX: (410) 771-4204

York, PA One Market Way West York , PA Peter A. Pellissier, P.E.

17401 Phone: (717) 848-5017 x1501


FAX: (717) 848-5925

EAC/Archaeology, Inc. Main 4303 North Charles Street Baltimore , MD

(003425) 21218-1054 Phone: (410) 243-6767


FAX: (410) 243-8383

Earth Engineering Incorporated Main 115 West Germantown Pike East Norriton , PA

(005289) 19401 Phone: (610) 277-0880 x261


FAX: (610) 277-0878

Lehigh Valley 149 Main Street Emmaus , PA Paul Creneti, P.G.

18049 Phone: (610) 967-4540


FAX: (610) 967-4488

Mechanicsburg 5010 Ritter Road Mechanicsburg , PA Robert Follett, P.E.

17055 Phone: (717) 697-5701


FAX: (717) 697-5702

South Jersey 403 Commerce Lane West Berlin , NJ Thomas B. Louis, P.E.

08091 Phone: (856) 768-1001


FAX: (856) 768-1144

Earth Tech Northeast, Inc. Main One World Financial Center New York , NY

(002992) 10281-2402 Phone: (212) 798-8500


FAX: (212) 798-8501

Earth, Inc. Main The Gristmill Pittsburgh , PA

(000006) 15229-2107 Phone: (412) 931-6393


FAX: (412) 931-2820

EarthData International, LLC Main 7320 Executive Way Frederick , MD

(002441) 21704 Phone: (301) 948-8550


FAX: (301) 963-2064

EarthData Aviation 18227 Airpark Drive Hagerstown , MD Tom Harrington

21742 Phone: (301) 733-1176


FAX: (301) 733-4906

EarthData Holdings (Maryland) 7320 Executive Way Frederick , MD Mary Hiatt

21704-8353 Phone: (301) 948-8550


FAX: (301) 963-2064

EarthData Holdings (Washington, DC) 1825 Connecticut Avenue NW Washington , DC Anne Miglarese

20009 Phone: (202) 518-7415


FAX: (202) 518-7417

EarthData Solutions (Florida) 900 South Goldenrod Road Orlando , FL Martin Roche

32822 Phone: (407) 207-1094


FAX: (407) 207-1189

EarthData Solutions (New York) 39 West 14th Street New York , NY Adam Cohen

10011 Phone: (212) 255-9960

FAX: (212) 604-9956

EarthData Technologies 7320 Executive Way Frederick , MD George Hoffman

21704 Phone: (301) 948-8550


FAX: (301) 963-2064

Horizons, Inc. (An EarthData Company) 3600 Jet Drive Rapid City , SD Larry Diebert

57709 Phone: (605) 343-0305


FAX: (605) 343-0305

EarthRes Group, Inc. Main P.O. Box 468 Pipersville , PA

(002861) 18947 Phone: (215) 766-1211 x104


FAX: (215) 766-1245

EarthSky Studios, Inc. Main 531 Fillman Road Downingtown , PA

(003943) 19335 Phone: (484) 875-3120


FAX: (718) 360-2962

Earthtech, Inc Main 336 Bloomfield St Johnstown , PA

(000494) 15904 Phone: (814) 266-6402 x118


FAX: (814) 266-6530

EASTERN TECHNICAL GROUP, INC. Main 1611 MONROEVILLE AVENUE TURTLE CREEK , PA

(001633) 15145 Phone: (412) 829-4650


FAX: (412) 829-4654

Ebony Holdings, LLC Main 1801 Centre Avenue Pittsburgh , PA

(006244) 15219 Phone: (412) 434-6571 x224


FAX: (412) 434-6570

ECMS TEST BP Main asdfasdf asdf , PA

(000411) 17110 Phone: (999) 999-9999


ECMS Test Use Only Main 555 Walnut Street Harrisburg , PA

(000001) 17105-3662 Phone: (555) 999-9999


FAX: (555) 555-0002

ECO Grouting Specialists Ltd. Main 293199 8th Line Grand Valley , ON

(005911) L6Z -1B9 Phone: (519) 928-5949


FAX: (519) 928-5968

EcoAnalysts, Inc. Main 105 East Second Street, Suite #1 Moscow , ID

(003582) 83843 Phone: (570) 374-2100


FAX: (570) 374-2100

Ecological Associates, LLC Main 185 Long Lane PO Box 181 Oley , PA

(006069) 19547-0181 Phone: (610) 987-6585


Ecological Restoration, Inc. Main 194 Goodview Drive Apollo , PA

(005714) 15613 Phone: (724) 727-3771


FAX: (724) 727-3778

Ecological Specialists, Inc. Main 1417 Hoff Industrial Center O'Fallon , MO

(000275) 63366 Phone: (636) 281-1982


FAX: (636) 281-0973

Economic Development Research Group, Inc. Main 2 Oliver Street Boston , MA

(007120) 02109 Phone: (617) 338-6775 x214


FAX: (617) 338-1174

Econsult Corporation Main 3600 Market Street Philadelphia , PA

(005765) 19104 Phone: (215) 382-1894


FAX: (215) 382-1895

Econsult Solutions, Inc Main 1435 Walnut Street Philadelphia , PA

(007986) 19102 Phone: (215) 717-2777


FAX: (215) 382-1895

ECS Mid-Atlantic, LLC Main 56 Grumbacher Road, Suite-D York , PA

(004151) 17406 Phone: (717) 767-4788


FAX: (717) 767-5658

Pittsburgh 500 Bursca Drive Bridgeville , PA Jeffery A. Shelton, PE

15017 Phone: (412) 206-1470


FAX: (412) 221-3131

Eddie R. Battle Associates,Inc. Main 7436 Briar Rd. Philadelphia , PA

(000436) 19138-1401 Phone: (267) 274-7062


FAX: (215) 924-8699

EDM Consultants Inc. Main EDM Consultants Inc. Lansdale , PA

(001654) 19446 Phone: (215) 393-0670 x20


FAX: (215) 393-0652

EDSA, Inc. Main Inner Harbor Center Baltimore , MD

(006024) 21202 Phone: (443) 539-3350


FAX: (443) 539-3351

Fort Lauderdale 1512 East Broward Boulevard Fort Lauderdale , FL Tonia Davenport

33301 Phone: (954) 524-3330 x262


FAX: (954) 524-0177

Edward B. Walsh and Associates Inc. Main Lionville Professional Center Exton , PA

(001434) 19341-1550 Phone: (610) 903-0060 x103


FAX: (610) 903-0080

Edward Bellock D/B/A Bellock Engineering Main RR1, Box 297 Roaring Spring , PA

(004774) 16673 Phone: (814) 224-4958


FAX: (814) 224-4958

Edwards and Kelcey, Inc. Main 1247 Ward Avenue, Suite 100 West Chester , PA

(000098) 19380-4259 Phone: (610) 701-7000


FAX: (610) 696-3550

Philadelphia, PA 30 South 15th Street Philadelphia , PA Anthony Zeloyle, P.E.

19102 Phone: (215) 569-0100 x1408


FAX: (215) 568-7670

Trevose, PA 900 Northbrook Drive Trevose , PA Joseph F. (Jay) Roth, III, P.E.

19053 Phone: (215) 355-3577


FAX: (215) 355-3147

ED3 Consultants Inc Main PO Box 589 South Park , PA

(006090) 15129 Phone: (866) 333-9131


FAX: (866) 335-9868

ED3 Consultants - AZ PO Box 3392 Carefree , AZ Denise Palmer

85377 Phone: (866) 333-9137


FAX: (866) 335-9868

ED3 Consultants Inc. 2275 Swallow Hill Road Pittsburgh , PA Denise Palmer

15220 Phone: (412) 246-9700


FAX: (866) 335-9868

EFCO Corporation Main 100 Northpointe Circle Seven Fields , PA

(002959) 16046 Phone: (724) 625-1600


FAX: (724) 625-0068

EGS Associates, Inc. Main 124 N. Mississippi Avenue Atlantic City , NJ

(001981) 08401 Phone: (609) 345-2727


FAX: (609) 345-1329

EHC Associates, Inc. Main 1205 E. King Street Lancaster , PA

(003861) 17602 Phone: (717) 393-8861


FAX: (717) 293-0231

Ehrenkrantz Eckstut & Kuhn Architects, PC Main 161 Avenue of the Americas New York , NY

(006104) 10013 Phone: (212) 353-0400


FAX: (212) 228-3928

Washington, DC The Duke Ellington Building Washington , DC R. Douglas Smith

20037 Phone: (202) 861-1325


FAX: (202) 861-1326

Eileen Tennor d/b/a Mortar & Ink Main 5536 Suffield Court Columbia , MD

(001236) 21044-2731 Phone: (410) 997-1764


FAX: (410) 997-1764

EKC Engineering (Eddy K. Chu, Owner) Main 408 Fairborough Court Coraopolis , PA

(000193) 15108-3480 Phone: (412) 859-0233


FAX: (412) 859-0233

El Taller Colaborativo, PC Main 550 Broad Street, 5th Floor Newark , NJ

(001560) 07102-4531 Phone: (973) 424-6420


FAX: (973) 622-6030

El Taller Colaborativo, PC 1008 West 8th Ave - 2nd Floor King of Prussia , PA Yinbo Liu

19406-1344 Phone: (610) 768-0877


FAX: (610) 768-0879

ELA Group, Inc. Main 743 South Broad Street Lititz , PA

(000323) 17543 Phone: (717) 626-7271 x660


FAX: (717) 626-7040

State College 2013 Sandy Drive, Suite 103 State College , PA Matt Harlow

16803 Phone: (814) 861-6328


FAX: (814) 861-5503

Elaine Petrakis Photography Main 112 Asbury Court Monroeville , PA

(000877) 15146 Phone: (724) 325-3396


FAX: (724) 733-5708

Element Engineering, LLC Main 807 Graywyck Drive Seven Fields , PA

(003511) 16046 Phone: (724) 816-1279


Elizabeth A. Comer T/A EAC/A Main 4303 North Charles Street Baltimore , MD

(000234) 21218-1054 Phone: (410) 243-6767


FAX: (410) 243-8383

Elizabeth A. Flynn D/B/A Flynn Photography Main 448 S. Jackson St. Media , PA

(004059) 18963 Phone: (610) 565-7993 x100


FAX: (610) 565-8180

Elizabeth Bowers d/b/a Elizabeth Bowers Construction Services Main 1398 Washington Road Pittsburgh , PA

(002425) 15228 Phone: (412) 343-7460


FAX: (412) 343-7465

Elk Transportation, Inc. Main 1420 Clarion Street Reading , PA

(006523) 19601 Phone: (610) 372-4760


FAX: (610) 372-4820

ELLANA, Inc. Main 40 Exchange Place New York , NY

(006094) 10005 Phone: (212) 971-0939


FAX: (212) 361-6169

EM Electronics, Inc. Main 545-547 Commerce Dr. Yeadon , PA

(002067) 19050 Phone: (610) 259-7200


FAX: (610) 259-4872

EMSI ENGINEERING INC Main 6997 Gateway Court Manassas , VA

(001317) 20109-7032 Phone: (703) 257-0877


FAX: (703) 361-3798

Encon Group Inc. Main 10605 Concord St. Kensington , MD

(001078) 20895 Phone: (301) 949-5900


FAX: (301) 949-7540

Eng-Wong, Taub & Associates Main Two Penn Plaza New York , NY

(001334) 10121-2210 Phone: (212) 695-5858


FAX: (212) 695-9881

Engineering & Property Management Consultants, Inc. Main 101 Washington Lane Jenkintown , PA

(006983) 19046-3552 Phone: (215) 885-3733


FAX: (215) 885-3732

Engineering & Research International, Inc. Main 1401 Regency Drive East Savoy , IL

(001751) 61874 Phone: (217) 356-5945


FAX: (217) 356-6347

Engineering and Testing Consultants, Inc. Main 509 Viking Drive Virginia Beach , VA

(002038) 23452-7323 Phone: (757) 486-5522


FAX: (757) 486-0855

Engineering Development Incorporated Main 8805 Tamiami Trail North Naples , FL

(007368) 34108 Phone: (800) 440-1951


FAX: (800) 743-1632

Engineering Dynamics Inc. Main 1575 McFarland Road Pittsburgh , PA

(000742) 15216 Phone: (412) 571-5301


FAX: (412) 571-5307

Engineering Specialists, Incorporated Main RD#1, Box 238C Bolivar , PA

(000161) 15923 Phone: (724) 235-2925


FAX: (724) 235-2930

Engineering Surveying Consultants and Design Inc. Main 707 Gardner Road Elmhurst , PA

(008037) 18444-0308 Phone: (570) 650-3341


Ensign Engineering and Land Surveying, Inc. Main 45 West 10000 South Suite 500 Sandy , UT

(007129) 84070 Phone: (801) 255-0529


FAX: (801) 255-4449

Entech Engineering, Inc. Main 4 South Fourth Street Reading , PA

(001625) 19602-1004 Phone: (610) 373-6667


FAX: (610) 373-7537

Lititz 315 Clay Road Lititz , PA Scott M. Carl, Sr.

17543-9019 Phone: (717) 626-6666


Mountaintop 685 South Mountain Boulevard Mountaintop , PA Christine Seely

18707 Phone: (570) 868-0275


FAX: (570) 868-0277

Pottsville 500 North Centre Street Pottsville , PA Melissa Krause

17901 Phone: (570) 628-5655


FAX: (570) 628-5097

EnviroBusiness Incorporated d/b/a EBI Consulting Main 21 B Street Burlington , MA

(004846) 01803 Phone: (781) 273-2500


FAX: (781) 273-3311

Environmental Abatement Associates, Inc. Main 143 West Main Street Plymouth , PA

(004860) 18651 Phone: (570) 779-4242


FAX: (570) 779-0929

Environmental Acoustics, Inc. Main 1400 Hummel Ave. Lemoyne , PA

(000262) 17043 Phone: (717) 730-4680


FAX: (717) 730-4685

Environmental Assessment Company, Inc Main P.O. Box 1940 Cranberry Township , PA

(000321) 16066 Phone: (724) 538-0101


FAX: (724) 538-4850

Environmental Connection, Inc. Main 120 North Warren Street Trenton , NJ

(005720) 08608 Phone: (609) 392-4200


FAX: (609) 392-1216

Environmental Design Inc Main 4117 Wimbledon Drive Harrisburg , PA

(001905) 17112 Phone: (717) 671-0484


FAX: (603) 720-4691

Environmental Logic, Inc Main 610 Woodside Road Pittsburgh , PA

(005877) 15221-3656 Phone: (412) 727-6440


FAX: (412) 727-6440

Environmental Planning & Design, LLC Main 100 Ross Street, 5th Pittsburgh , PA

(005971) 15219-2013 Phone: (412) 261-6000


FAX: (412) 261-5999

Environmental Products & Services of Vermont, Inc Main 532 State Fair Blvd Syracuse , NY

(007469) 13204 Phone: (315) 671-1693


FAX: (315) 471-3846

Environmental Remediation & Recovery, Inc. Main 5719 Route 6N Edinboro , PA

(001506) 16412 Phone: (814) 734-6411


FAX: (814) 734-4756

Environmental Services, Inc. Main Environmental Services, Inc. Jacksonville , FL

(004693) 32256-6840 Phone: (904) 470-2200 x163


FAX: (904) 470-2112

Environmental Solutions & Innovations, Inc. Main 781 Neeb Road Cincinnati , OH

(001450) 45233-4625 Phone: (513) 451-1777 x25


FAX: (513) 451-3321

Northeast Regional Office 1153 W. Fayette Street Syracuse , NY Bryan A. Bayer

13204 Phone: (315) 314-7309


FAX: (315) 314-7546

Enviroscan, Inc. Main 1051 Columbia Avenue Lancaster , PA

(000346) 17603 Phone: (717) 396-8922


FAX: (717) 396-8746

EnviroScience, Inc. Main 5070 Stow Road Stow , OH

(000174) 44224 Phone: (330) 688-0111


FAX: (330) 688-3858

Nashville, TN Office 1722 General George Patton Drive Brentwood , TN Dave Czayka

37027 Phone: (330) 606-5822


Stow Lab & Equipment Warehouse 3781 Darrow Rd. Stow , OH Greg Zimmerman

44224 Phone: (330) 688-0111


FAX: (330) 688-3858

EnviroSure, Inc. Main PO Box 731 West Chester , PA

(003853) 19381-0731 Phone: (610) 696-8980


FAX: (610) 696-8984

Envision Consultant, Ltd. Main 3 Wheatley Blvd. Mullica Hill , NJ

(000747) 08062-0536 Phone: (856) 223-0800


FAX: (856) 223-8886

Erdman, Anthony, Associates, Inc. Main One Sterling Place Mechanicsburg , PA

(000002) 17050 Phone: (717) 766-1741


FAX: (717) 766-5516

Albany, NY 11 Century Hill Drive Latham , NY Ray Darling

12110 Phone: (518) 783-1205


FAX: (518) 783-0374

Buffalo, NY 8608 Main Street Buffalo , NY Dan Ziemianski, PE

14221 Phone: (716) 631-1241


FAX: (716) 631-1276

Hudson Valley, NY 530 Enterprise Drive Kingston , NY Katherine Dewkett, PE

12401 Phone: (845) 383-3661


FAX: (845) 383-3811

Pittsburgh, PA 4955 Steubenvile Pike Pittsburgh , PA Bernie Zimmovan, PE

15205 Phone: (412) 494-0505


FAX: (412) 494-0707

Portland, ME 424 Fore Street Portland , ME Jim Mansir

04101 Phone: (207) 314-5110


Rochester, NY 145 Culver Road Rochester , NY Andy Taylor, PE

14620 Phone: (585) 427-8888


FAX: (585) 427-8914

West Palm Beach, FL 1402 Royal Palm Beach Boulevard Royal Palm Beach , FL Jim Noth, PE

33411 Phone: (561) 753-9723


FAX: (561) 753-9724

Erie Downtown Partnership Main 515 State Street Erie , PA

(005015) 16501 Phone: (814) 455-3743


FAX: (814) 455-6481

Ernst & Young Infrastructure Advisors, LLC Main 200 Plaza Drive Secaucus , NJ

(007982) 07094 Phone: (215) 448-5000


ES&C International, LLC. Main 47 Federal Plaza Youngstown , OH

(002439) 44503-1605 Phone: (330) 744-4995 x208


FAX: (330) 744-3905

Eugene J. Aufiero & Associates, Inc. Main 1309 Bridge Street New Cumberland , PA

(000062) 17070-1172 Phone: (717) 774-9412


FAX: (717) 774-9414

eVectis Technologies, LLC Main 441 Appletree Road Camp Hill , PA

(001936) 17011 Phone: (717) 233-4000


FAX: (717) 233-4136

Ex-Imp Global, Inc. Main 41672 Sudbury Court Novi , MI

(004912) 48375 Phone: (248) 347-1821


FAX: (248) 232-3036

Exico, Inc. Main Exico Business Center Pittsburgh , PA

(000978) 15222 Phone: (412) 261-3073


FAX: (412) 261-0626

Exodus Solutions Inc. Main 6823 Germantown Avenue Philadelphia , PA

(002083) 19119 Phone: (215) 843-9395


FAX: (215) 843-7332

Exponent Main 149 Commonwealth Drive Menlo Park , CA

(004955) 94025 Phone: (650) 236-9400


Express Employment Professionals Company Main 364 N. Courtland St. East Stroudsburg , PA

(007299) 18301 Phone: (570) 424-1800


FAX: (570) 424-3732

EZ Consulting Group, LLC Main 1501 Locust Street Pittsburgh , PA

(001708) 15219 Phone: (412) 434-6200


FAX: (412) 434-7052

EZ Overseas, Inc. Main 333 Challen Drive Pittsburgh , PA

(005933) 15236 Phone: (412) 407-4646


FAX: (412) 407-4609

F. C. Spott Company Main 706 W. Grant Street Blakely , PA

(007391) 18447 Phone: (570) 344-3580


FAX: (570) 344-4887

F. L. Haus Company Main 921 RIDGE AVE. PITTSBURGH , PA

(001895) 15212-6093 Phone: (412) 231-7700


FAX: (412) 231-7700

F.X. Browne, Inc. Main PO Box 401 Lansdale , PA

(003526) 19446-0401 Phone: (215) 362-3878


FAX: (215) 362-2016

Facilities Planners + Architects, Inc. Main 4201 East Park Circle Harrisburg , PA

(005004) 17111 Phone: (717) 221-9700


FAX: (717) 221-1185

Facility Design and Development, Ltd. Main One South Main Street Wilkes-Barre , PA

(004131) 18701 Phone: (570) 824-1234 x406


FAX: (570) 822-5337

Fairmount Park Commission/City of Philadelphia Main 1515 Arch Street Philadelphia , PA

(003374) 19102 Phone: (215) 683-0210


FAX: (215) 683-0205

Fairway Laboratories, Inc. Main 2019 Ninth Ave. Altoona , PA

(005439) 16602 Phone: (814) 946-4306


FAX: (814) 946-8791

Fayette Engineering Company, Inc. Main 2200 University Drive Uniontown , PA

(000079) 15401-1030 Phone: (724) 438-5573


FAX: (724) 438-6990

Fehr Engineering LLC Main 987 Hillsdie Drive Southampton , PA

(004893) 18966-4312 Phone: (215) 364-2592


FAX: (215) 364-1170

FES, Inc Main 118443 Canon Boulevard, Suite B Newport News , VA

(006091) 23606 Phone: (757) 873-4113 x203


FAX: (757) 873-4114

Fialco, LLC Main 3 Potter Street Warminster , PA

(007686) 18974 Phone: (215) 394-5599


FAX: (215) 394-5808

Fiber Connections Inc. Main 30 Aerospace Blvd Summerside , PE

(004640) C0B -2A0 Phone: (902) 436-1727 x223


FAX: (902) 436-2316

Fidelis Engineering, Inc. Main 40 Cambridge Court Downingtown , PA

(006403) 19335 Phone: (484) 228-8241


FAX: (484) 228-8175

FIELD LLC Main 221 North Henderson Road King of Prussia , PA

(006334) 19406 Phone: (610) 265-9710


FAX: (610) 265-9711

Figg Engineering Group/Figg Bridge Engineers, Inc. Main 424 North Calhoun Street Tallahassee , FL

(000111) 32301-1298 Phone: (610) 594-2460


FAX: (610) 594-6690

Figg Bridge Engineers, Inc. (WRO) 1873 S. Bellaire St. Denver , CO Russ Call, P.E., S.E.

80222 Phone: (303) 757-7400


FAX: (303) 757-0698

FIGG Bridge Engineers, Inc. (NERO) 100 Campbell Boulevard Exton , PA Brice Urquhart, P.E.

19341 Phone: (610) 594-2460


FAX: (610) 594-6690

Fiocco Engineering, LLC Main 36 Trevose Road Trevose , PA

(006284) 19053 Phone: (215) 355-2089


Fioravanti Inc. Main 618 Street Road Southampton , PA

(004978) 18966 Phone: (215) 322-2143 x108


FAX: (215) 322-9687

First Capital Engineering, Inc. Main 48 S. Richland Avenue York , PA

(000214) 17404 Phone: (717) 845-3227 x228


FAX: (717) 852-7891

First Generation Video Productions, Inc. Main 6 State Road Mechanicsburg , PA

(006464) 17050 Phone: (717) 975-9210


FAX: (717) 975-9287

Firstech, Inc. Main 19701 South Miles Road Warrensville Heoghts , OH

(001924) 44128-4257 Phone: (216) 663-0808


FAX: (216) 663-0656

Fischbach Morgan & Associates, LLC Main 1 Kacey Court Mechanicsburg , PA

(005345) 17055 Phone: (717) 795-9393


FAX: (717) 795-9494

Fisher Associates, P.E., L.S., P.C. Main 10267 Old Route 31 Clyde , NY

(000319) 14433-9777 Phone: (585) 334-1310


FAX: (585) 334-1361

Buffalo 325 Delaware Ave Buffalo , NY Sheila Ransbottom

14202 Phone: (716) 858-1234


FAX: (716) 858-1231

Cannonsburg, PA 135 Technology Drive Canonsburg , PA Laurie Popeck

15317 Phone: (724) 916-4250


Erie, PA 1001 State Street Erie , PA David Nichter

16501 Phone: (814) 397-3599


Rochester 135 Calkins Road Rochester , NY Kris Lepel

14623 Phone: (585) 334-1310 x227


FAX: (585) 334-1361

Syracuse 120 East Washington Street Syracuse , NY Jeff Hinman

13202 Phone: (315) 422-4822


FAX: (315) 422-4844

Fitzgerald & Halliday, Inc. Main 72 Cedar Street Hartford , CT

(003208) 06106 Phone: (860) 247-7200


FAX: (860) 247-7206

Fitzgerald & Halliday, Inc. 926 Haddonfield Road Cherry Hill , NJ Kristen D. Ahlfeld

08002 Phone: (800) 579-6643


FAX: (201) 603-6482

Fleet Environmental Services L.L.C. Main 898 Fern Hill Road West Chester , PA

(002390) 19380 Phone: (610) 436-7540


FAX: (610) 436-7542

Florida Acquisition & Appraisal, Inc. Main 2109 E. Palm Avenue Tampa , FL

(005497) 33605 Phone: (813) 241-6354 x208


FAX: (813) 241-6395

Florida Testing Services LLC., dba Xenco Laboratories Main 5757 NW 158th St Miami Lakes , FL

(004220) 33014 Phone: (305) 823-8500 x1173


FAX: (305) 823-8555

Foit-Albert Associates, Architecture, Engineering & Surveying, P.C. Main 763 Main Street Buffalo , NY

(000511) 14203-1395 Phone: (716) 856-3933


FAX: (518) 452-3639

Fong & Associates, Inc. Main 1004 W. 8th Ave., Suite C King of Prussia , PA

(000179) 19406 Phone: (610) 768-0877


FAX: (610) 768-0879

Foothills Architecture + Consulting, PC Main 5542 Pleasant Unity Road Latrobe , PA

(005814) 15650 Phone: (724) 537-7710


FAX: (724) 532-2710

Foremost Environmental Consulting, Inc. Main 305 Yorktown Drive Cranberry Township , PA

(000421) 16066 Phone: (724) 776-5369


FAX: (724) 776-2343

Foresight Construction Services, LLC Main 158 Rogers Drive Clinton , PA

(007799) 15026-1324 Phone: (412) 339-0233


Forest Hills Community Development Corporation Main 2071 Ardmore Boulevard Pittsburgh , PA

(003215) 15221 Phone: (412) 963-0700


FAX: (412) 963-6662

Forino Co., L.P. Main 555 Mountainhome Road Sinking Spring , PA

(004814) 19608 Phone: (610) 670-2200 x124


FAX: (610) 670-6453

Foundation Test Group, Inc. Main 2601 Emory Road, Bldg 1A Finksburg , MD

(002837) 21048 Phone: (410) 517-0715


FAX: (410) 517-0716

Fournier Robson And Associates, LLC Main 354 N. Prince Street Lancaster , PA

(005420) 17603 Phone: (717) 293-9050


Foursquare Integrated Transportation Planning, Inc. (Foursquare ITP) Main 51 Monroe Street Rockville , MD

(008074) 20850 Phone: (301) 774-4566 x107


FAX: (301) 917-3153

Foust Geological Services, Inc. Main 1790 Old Trail Road, Suite D Etters , PA

(000153) 17319-9652 Phone: (717) 932-1974


FAX: (717) 932-1124

Fox Engineering, PC Main 857 Main Street New Milford , PA

(006747) 18834 Phone: (570) 465-6669


FAX: (570) 465-6669

FOX Engineering, PLLC Main Carson's Corner Professional Building Ripley , WV

(005655) 25271 Phone: (304) 372-3705


FAX: (304) 372-4100

Fairmont 1000 Green River Drive Fairmont , WV Troy H. Schell, PE

26554 Phone: (304) 534-3245


FAX: (304) 534-3247

Francisco Ortiz-Landazabal d/b/a Geotechnical Consultants & Services Main 3825 Green Ridge Rd Furlong , PA

(004836) 18925-2107 Phone: (267) 884-6849


FAX: (267) 544-0199

Frank B. Taylor Engineering Main 149 Taylor Drive New Castle , PA

(000082) 16101 Phone: (724) 654-6141


FAX: (724) 654-5827

Frederick C. Spott & Associates, Inc. Main 706 West Grant Street Blakely , PA

(000875) 18447 Phone: (570) 344-3580


FAX: (570) 344-4887

Frederick C. Spott d/b/a Frederick C. Spott & Associates Main 706 West Grant Street Blakely , PA

(001458) 18447 Phone: (570) 344-3580


FAX: (570) 344-4887

FreeAhead Engineering PC Main 268 Golden Woods Ct Great Falls , VA

(005256) 22066-4100 Phone: (703) 759-2992 x3


FAX: (703) 759-0344

French & Parrello Associates, P.A. Main 1800 Route 34 Wall , NJ

(002293) 07719 Phone: (732) 312-9800


FAX: (732) 312-9801

Hackettstown Office 43A Newburgh Road, Suite 100 Hackettstown , NJ Argo Parrello, PE

07840 Phone: (908) 850-0977


FAX: (908) 850-0944

Pennsylvania Office 60 West Broad Street, Suite 102 Bethlehem , PA Denis Keenan, P.E.

18018 Phone: (610) 807-0601


FAX: (610) 807-0602

French Engineering, LLC Main 7 North Morgantown Street Fairchance , PA

(002376) 15436 Phone: (724) 564-8013


FAX: (724) 564-8037

Froehling & Robertson, Inc. Main 3015 Dumbarton Road Richmond , VA

(008142) 23228-5831 Phone: (804) 264-2701


FAX: (804) 264-1202

Fugro EarthData, Inc. Main 7320 Executive Way Frederick , MD

(003616) 21704 Phone: (301) 948-8550


FAX: (301) 963-2064

FuMorton d/b/a Morton Architecture and Urban Design PLLC Main 335 Greenwich St New York , NY

(006077) 10013 Phone: (917) 331-6504


FAX: (212) 868-9415

FXFOWLE Architects, LLP Main 22 West 19th Street New York , NY

(006046) 10011 Phone: (212) 627-1700


FAX: (646) 616-7089

Fynite Solutions, LLC Main Fynite Solutions, LLC Moon Township , PA

(005071) 15108 Phone: (412) 375-7747


FAX: (412) 375-7735

G Force Engineering Services, LLC Main 1630 Philadelphia Street Indiana , PA

(007483) 15701 Phone: (724) 801-8169


FAX: (724) 801-8589

G Stephens Inc. Main 133 N. Summit Street Akron , OH

(007196) 44304 Phone: (330) 762-1386


FAX: (330) 762-0044

Pittsburgh 700 River Avenue Pittsburgh , PA Dennis K. Avery, PE, LEED AP

15212 Phone: (412) 224-4434


FAX: (412) 224-4435

G.M. Taggart & Associates, Inc. d/b/a Taggart Associates Main 26 East Third Street Bethlehem , PA

(000194) 18015-1304 Phone: (610) 882-1571


FAX: (610) 882-9679

G&C Environmental Services, Inc. Main 2 Street Road Newtown Square , PA

(002703) 19073 Phone: (610) 993-9202


FAX: (610) 993-9232

GAI Consultants, Inc. Main 385 East Waterfront Drive Homestead , PA

(000134) 15120-5005 Phone: (412) 476-2000 x1300


FAX: (412) 476-2020

Altoona Office 3900 Industrial Park Drive Altoona , PA Raymond Schilling

16602 Phone: (814) 201-2058 x2901


FAX: (814) 201-2336

Cranberry Office 500 Cranberry Woods Drive Cranberry Township , PA Jeffrey Cadman

16066 Phone: (724) 772-2011 x2401


FAX: (724) 772-2050

DuBois 203 West Weber Avenue DuBois , PA Scott D. Kunselman

15801 Phone: (814) 371-7750


FAX: (814) 371-8864

Murrysville Office 4101 Triangle Lane Export , PA Gary Brendel

15632-1358 Phone: (724) 387-2170 x2701


FAX: (724) 387-2265

Philadelphia Office 1055 Westlakes Drive Berwyn , PA Harry A. Trout

19312 Phone: (610) 640-7456


FAX: (610) 640-7459

Southpointe Office 701 Technology Drive Canonsburg , PA Patrick Gallagher

15317 Phone: (724) 873-3545 x3301


FAX: (724) 873-3549

Gaito & Associates, LLC Main 2725 Enola Road Carlisle , PA

(006518) 17015 Phone: (717) 226-4320


Gall Zeidler Consultants, LLC Main 44345 Premier Plaza Ashburn , VA

(008018) 20147 Phone: (703) 726-2700


FAX: (703) 726-6999

Gallop Corporation Main 451 Hungerford Drive, Suite 612 Rockville , MD

(000255) 20850 Phone: (301) 838-0108


FAX: (301) 838-0324

Gannett Fleming, Inc. Main 207 Senate Avenue Camp Hill , PA

(000064) 17011 Phone: (717) 763-7211 x2170


FAX: (717) 763-8150

GANCOM Printing 209 Senate Avenue Camp Hill , PA Terry Rodkey

17011-2325 Phone: (717) 763-7387 x2628


FAX: (717) 763-8150

Chambersburg, PA Gannett Fleming, Inc. Chambersburg , PA Garry Brennan

17201 Phone: (717) 709-1616


FAX: (717) 709-1621

Clearfield, PA Gannett Fleming, Inc. Clearfield , PA Jeff Ream

16830 Phone: (814) 765-4320 x210


FAX: (814) 765-2511

Environmental Acoustics 1400 Hummel Avenue Lemoyne , PA Ahmed E-Aassar, Ph.D.

17043-1749 Phone: (717) 730-4680 x14


FAX: (717) 730-4685

Lancaster, PA Gannett Fleming, Inc. Lancaster , PA Gary Martin

17603-0000 Phone: (717) 299-9840


FAX: (717) 299-9870

Montoursville, PA 4547 Lycoming Mall Drive Montoursville , PA Mark Weller

17754-8216 Phone: (570) 368-5098


FAX: (570) 368-5076

Philadelphia, PA Gannett Fleming, Inc. Philadelphia , PA Susan F. Gibbons

19102 Phone: (215) 557-0106


FAX: (215) 557-0337

Pittsburgh, PA Gannett Fleming, Inc. Pittsburgh , PA John Kovacs

15220 Phone: (412) 922-5575


FAX: (412) 922-3717

State College, PA Gannett Fleming, Inc. State College , PA Charles Yorks

16801-3075 Phone: (814) 234-8625


FAX: (814) 234-8086

Valley Forge, PA (Audubon) Gannett Fleming, Inc. Audubon , PA Esther McGinnis

19403-2402 Phone: (610) 650-8101


FAX: (610) 650-8190

Garg Consulting Services, Inc. Main 401 Route 70 East, Suite 211 Cherry Hill , NJ

(000825) 08034 Phone: (856) 429-8010


FAX: (856) 429-0453

Rocky Hill, CT 2096A Silas Deane Highway Rocky Hill , CT Eugene Chuang

06067 Phone: (860) 563-0582


FAX: (860) 563-0825

Garvin Boward Beitko Engineering, Inc. Main 180 Bilmar Drive Pittsburgh , PA

(003280) 15205 Phone: (412) 922-4440 x101


FAX: (412) 922-3223

Gatter & Diehl, Inc Main 2400 Park Drive Harrisburg , PA

(002813) 17110 Phone: (717) 657-9700


FAX: (717) 657-9705

Gene Trusky d/b/a Gene Trusky Executive Search Main 609 Speyer Ave Monaca , PA

(008325) 15061 Phone: (724) 371-0408


General Dynamics Information Technology, Inc Main 3211 Jermantown Road Fairfax , VA

(007351) 22030-2844 Phone: (717) 731-5085


FAX: (717) 541-0908

General Highway Products, Inc. Main 878 Sussex Boulvevard Broomall , PA

(001677) 19008 Phone: (610) 328-4040


FAX: (610) 544-3380

Genesys Controls Corporation Main 1917 Olde Homestead Lane Lancaster , PA

(005751) 17601 Phone: (717) 239-5513


FAX: (717) 393-7230

Geo - Explorers, Inc. Main 168 West Ridge Pike Limerick , PA

(000489) 19468 Phone: (610) 831-1193


FAX: (610) 831-1194

GEO-Mechanics, Inc. Main 600 Munir Drive, P.O. Box 386 Elizabeth , PA

(000208) 15037-0386 Phone: (724) 379-6300


FAX: (724) 379-4242

Geo-Science Engineering Company, Inc. Main 1252 Mid Valley Drive Jessup , PA

(000113) 18434 Phone: (570) 489-8717


FAX: (570) 489-8714

GEO-Technical Services, Inc. d/b/a GTS Technologies, Inc. Main 441 Friendship Road Harrisburg , PA

(000065) 17111-1204 Phone: (717) 236-3006


FAX: (717) 233-0994

Geo-Technology Associates, Inc. Main 3445A BOX HILL CORPORATE CTR DRIVE ABINGDON MD , MD

(007690) 21009 Phone: (410) 515-9446 x131


Geoarcheology Research Associates, Inc. Main 5912 Spencer Avenue Riverdale , NY

(000280) 10471-1912 Phone: (718) 601-3861


FAX: (718) 601-3864

GEOD Corporation Main 24 Kanouse Road Newfoundland , NJ

(004689) 07435 Phone: (973) 697-2122 x105


FAX: (973) 838-6433

Geodrain Incorporated Main 253 Gringo Independence Road Aliquippa , PA

(001350) 15001 Phone: (724) 375-6879


FAX: (724) 375-2560

GeoLogic NY, Inc. Main 37 Copeland Avenue Homer , NY

(000356) 13077 Phone: (607) 749-5000


FAX: (607) 749-5063

Giles Drilling PO Box 350 Homer , NY Forrest Earl

13077 Phone: (607) 749-6000


FAX: (607) 749-5063

Geomatics Solutions, LLC Main 902 North Third Street Altoona , PA

(003412) 16601-5708 Phone: (814) 949-2343


FAX: (814) 949-2329

GeoOne, Inc. Main 6455 E. Livingston Avenue Reynoldsburg , OH

(000112) 43068 Phone: (614) 866-9010 x21


FAX: (614) 866-1542

George L Crawford and Associates, Inc. dba Crawford, Bunte, Brammeier Main 1830 Craig Park Ct. Suite 209 St. Louis , MO

(003832) 63146-4148 Phone: (314) 878-6644


FAX: (314) 878-5876

George L. Wilson Co.Inc. Main 220 East General Robinson Street Pittsburgh , PA

(002974) 15212 Phone: (412) 321-3217


FAX: (412) 321-2459

GEORGE M. ALBERT, P.E., LLC Main 30 MARKET STREET PITTSTON , PA

(006155) 18640 Phone: (570) 654-1071


FAX: (570) 654-1667

George White d/b/a White Environmental Services Main 7075 Lover's Lane Kempton , PA

(005386) 19529 Phone: (610) 703-2564


FAX: (610) 703-2564

George, Miles & Buhr, LLC Main 1030 Plymouth Road York , PA

(000253) 17402 Phone: (717) 600-0604


FAX: (717) 751-2417

GeoSci Associates Main 631 Idlewood Avenue Carnegie , PA

(000202) 15106 Phone: (412) 279-4980


FAX: (412) 279-9165

Geospatial Mapping Systems, Inc. (dba Geospatial Corporation) Main 229 Howes Run Road Sarver , PA

(005886) 16055 Phone: (724) 353-3400 x3414


GeoStructures, Inc. Main 1000 West 9th Ave. King of Prussia , PA

(000330) 19406 Phone: (610) 265-1818


FAX: (610) 265-1833

GeoSystems Consultants, Inc Main 514 Pennsylvania Ave Fort Washington , PA

(000368) 19034 Phone: (215) 654-9600


FAX: (215) 643-9440

Geotech Engineering Inc. Main 4031 Allport Cutoff Morrisdale , PA

(006787) 16858 Phone: (814) 342-7090 x221


FAX: (814) 342-7099

Geotechnica, S.A., Inc. Main 318 Walnut Drive Venetia , PA

(001311) 15367 Phone: (724) 942-4220


FAX: (724) 260-0582

Geotechnical Consultants, Inc. Main 720 Greencrest Drive Westerville , OH

(000658) 43081 Phone: (614) 895-1400 x256


FAX: (614) 895-1711

Geotechnics, Inc. Main 544 Braddock Ave. East Pittsburgh , PA

(001299) 15112-1223 Phone: (412) 823-7600


FAX: (412) 823-8999

Geotrack, Inc. Main P.O. Box 228 Lake Forest , IL

(000031) 60045 Phone: (847) 234-0185


FAX: (847) 547-0383

Northeast Regional Headquarters 210 N. 14th Street Kenilworth , NJ Paul Cravotta

07033 Phone: (732) 312-3437


FAX: (732) 202-9052

Virginia/Maryland Operations 8078 Winchester road Front Royal , VA Seamus Lowry

22630 Phone: (703) 335-2622


FAX: (703) 335-6466

Gerald P Spearing dba Gerald P Spearing Consulting Main 565 Jamestown St Philadelphia , PA

(005500) 19128 Phone: (215) 778-2303


FAX: (215) 778-2303

GHD Inc Main 222 South Church Street Charlotte , NC

(006191) 28202 Phone: (704) 342-4910


FAX: (704) 342-4911

Bloomsburg 326 East Second Street Bloomsburg , PA Rich Subasic

17815 Phone: (570) 387-5283


FAX: (570) 387-5284

Charlotte 222 South Church Street Charlotte , NC Wayne Francisco

28202 Phone: (704) 342-3924


FAX: (704) 342-4911

Doylestown 3655 Rt. 202 Doylestown , PA Stanley Chilson, PE

18902 Phone: (215) 230-3663


FAX: (215) 230-3559

Harrisburg 1240 Mountain Road Harrisburg , PA Jeff Wendell, PE

17112 Phone: (717) 541-0622


FAX: (717) 541-8004

Huntingdon 321 Washington Street Huntingdon , PA Raymond Myers, PE

16652 Phone: (814) 643-8260


FAX: (814) 643-8269

Madison 5325 Wall Street Madison , WI Mark Lenters, PE

53718 Phone: (608) 249-4545


FAX: (608) 249-4402

Pittsburgh P.O. Box 200233 Pittsburgh , PA Andy Duerr

15251-0233 Phone: (717) 585-6394

Gian L. Rocco Main 509 Orlando ave state college , PA

(006565) 16803 Phone: (814) 237-2313


FAX: (814) 237-2313

Gibson-Thomas Engineering Company, Inc. Main 1004 Ligonier Street Latrobe , PA

(000026) 15650 Phone: (724) 539-8562


FAX: (724) 539-3697

E.A. Thaner Assoc. Division of Gibson-Thomas 9951 Old Perry Highway Wexford , PA John J. Schleicher, P.E., P.L.S. / Jason Paulovich

15090 Phone: (724) 935-8188

FAX: (724) 935-8189

Gibson-Thomas Engineering Company, Inc. 3552 Old Gettysburg Road Camp Hill , PA Richard T. Hilboky, P.E.

17011 Phone: (717) 612-9880


FAX: (717) 612-9465

Gilmore & Associates, Inc. Main 65 E. Butler Avenue New Britain , PA

(000288) 18901 Phone: (215) 345-4330 x300


FAX: (215) 345-8606

Chester County 415 McFarlan Road Kennett Square , PA Christopher D. Burkett, P.E., R.L.A., P.P. LEED AP

19348 Phone: (610) 444-9006 x501


FAX: (610) 444-7292

East Stroudsburg Office Van Vliet Road and Mill Creek Road East Stroudsburg , PA William J. Greiner, P.E., P.L.S.

18301 Phone: (570) 421-7670


FAX: (570) 421-7687

Lehigh Valley Commerce Corporate Center Allentown , PA Scott C. Muller, P.E., P.L.S., Executive Vice President

18104 Phone: (610) 366-8064


FAX: (610) 366-0433

Montgomery County 184 West Main Street Trappe , PA John P. Sartor, P.E., Vice President

19426 Phone: (610) 489-4949 x211


FAX: (610) 489-8447

Philadelphia One Penn Center at Suburban Station Philadelphia , PA Robert G. Solarz, P.E., President

19103 Phone: (215) 687-4246


FAX: (215) 564-1780

Glace Associates, Inc. Main 3705 Trindle Road Camp Hill , PA

(000372) 17011-4334 Phone: (717) 731-1579


FAX: (717) 731-1348

Glackin Thomas Panzak, Inc. Main 41 Leopard Road, Suite 300 Paoli , PA

(006548) 19301-1549 Phone: (610) 408-9011


FAX: (610) 408-9477

Glatting Jackson Kercher Anglin, Inc. Main 33 E. Pine Street Orlando , FL

(002970) 32801 Phone: (407) 843-6552


FAX: (407) 839-1789

Glaus, Pyle, Schomer, Burns and DeHaven, Inc. dba GPD Associates Main Suite 2531 Akron , OH

(000526) 44311-1010 Phone: (330) 572-2100


FAX: (330) 572-2101

Columbus 5990 Wilcox Place Columbus , OH Walid Gemayel, P.E.

43016 Phone: (614) 210-0751


FAX: (614) 210-0752

Glenn Engineering & Associates, LTD Main 14920 Route 30 North Huntingdon , PA

(003403) 15642-1073 Phone: (412) 824-5672 x102


FAX: (412) 824-9587

Global Insight (USA), Inc. Main 1000 Winter Street, Suite 4300N Waltham , MA

(003126) 02451-1444 Phone: (610) 490-2609


FAX: (610) 490-2770

Global Oceanic Enterprises, Inc. Main PO Box 99 Langhorne , PA

(000170) 19047-0099 Phone: (215) 497-1000


FAX: (215) 497-9000

GLOBE Consulting, Inc. Main 539 Farmhouse Lane Hummelstown , PA

(001931) 17036-7002 Phone: (717) 566-8520


FAX: (717) 566-8375

Glover & Associates, Inc. Main 215 Estates Drive, Suite Three Roseville , CA

(003452) 95678 Phone: (916) 786-3552 x229


FAX: (916) 786-3821

Glover - Pennsylvania 116 South Broad Street Kennett Square , PA Heath C. Kolman, P.E.

19348-0909 Phone: (610) 765-1404


FAX: (610) 765-1407

GMR Aerial Surveys, Inc. dba Photo Science Main 104 South Church Street West Chester , PA

(002927) 19382 Phone: (610) 344-0890


FAX: (610) 344-0892

Ann Arbor, MI 315 West Huron Street Ann Arbor , MI Andrew Brenner, PhD

48103-4262 Phone: (734) 680-6424


Bowie, MD 4801 Telsa Drive Bowie , MD Kurt Allen

20715-4327 Phone: (301) 262-9400


FAX: (301) 262-9600

Colorado Springs, CO 2955 Professional Place Colorado Springs , CO Steven Raber

80904-8139 Phone: (719) 646-9141


Emeryville, CA 6101 Hollis Street Emeryville , CA Devin Kelley, CP

94608-2078 Phone: (510) 834-2001


FAX: (510) 834-2101

Lexington, KY 523 Wellington Way Lexington , KY G. Michael Ritchie, PE, PLS, PSM, CP

40503-1394 Phone: (859) 277-8700 x101


FAX: (859) 277-8901

Mission, KS 5700 Broadmoor Street Mission , KS Dal Chappell

66202-2402 Phone: (913) 981-9605


FAX: (913) 981-9602

Norcross, GA 1410 Indian Trail Road Norcross , GA Jeffrey Simmons, PLS

30093-2611 Phone: (770) 564-9843


FAX: (770) 279-9568

St. Petersburg, FL 10033 Martin Luther King Street North St. Petersburg , FL Gary Florence, PSM, CP

33716-3830 Phone: (727) 576-9500


FAX: (727) 576-9600

West Chester, PA 104 South Church Street West Chester , PA Michael B. Shillenn, CP

19382-3202 Phone: (610) 344-0890


FAX: (610) 344-0892

Golder Associates Inc. Main 200 Century Parkway Mt. Laurel , NJ

(004972) 08054 Phone: (856) 793-2005


FAX: (856) 793-2006

Bristol 10 Canal Street Bristol , PA Jim Gardner

19007 Phone: (215) 826-1560


FAX: (215) 826-9458

Conshohocken, PA Spring Mill Corporate Center Conshohocken , PA Bob Stetkar

19428 Phone: (610) 941-8173


FAX: (610) 941-8174

Mt. Laurel 200 Century Parkway Mt. Laurel , NJ Teresa L. Lewis

08054 Phone: (856) 793-2005 x34492


FAX: (856) 793-2006

Newark 744 Broad Street Newark , NJ Mark M. McNeilly

07102 Phone: (973) 645-1922


FAX: (973) 645-1588

Pittsburgh 105 Bradford Road Wexford , PA Abby Faust

15090 Phone: (724) 935-6400


Gordon L. Brown & Associates, Inc. Main 2238 South Queen St. York , PA

(005663) 17402-4631 Phone: (717) 741-4621 x17


FAX: (717) 741-1418

GPS-Tech, Inc. Main 3489 Pittsburgh Road Perryopolis , PA

(008191) 15473-0086 Phone: (724) 984-8853


Grande Engineering and Consulting LLC Main 43 Burnside Avenue Norristown , PA

(005647) 19403-3030 Phone: (484) 744-1586


Graves Architects, Inc. Main Benedum Trees Building Pittsburgh , PA

(004300) 15222 Phone: (412) 338-1976


FAX: (412) 338-1982

Gray Engineering Corp Main 201 South Main Street, Suite 200 Butler , PA

(001630) 16001-8338 Phone: (724) 287-1055


FAX: (724) 287-1104

Great Valley Consultants Main Great valley Consultants Wyomissing , PA

(000087) 19610-1038 Phone: (610) 375-8822


FAX: (610) 375-8977

Great Valley Consultants - Shamokin 520 North Shamokin Street Shamokin , PA Matthew Melusky

17872 Phone: (570) 648-7320

Greater Valley Forge Transportation Management Association (GVF) Main 1012 West 8th Ave. King of Prussia , PA

(006562) 19406 Phone: (610) 354-8899


FAX: (610) 768-0626

Green Stone Engineering LLC Main 5600 Kirkwood Highway Wilmington , DE

(005961) 19808 Phone: (302) 998-4401


FAX: (302) 998-4403

Greenhill & Co., LLC Main 300 Park Avenue New York , NY

(005884) 10022 Phone: (312) 846-5020


FAX: (312) 846-5021

Greenhorne & O'Mara, Inc. Main 5000 Ritter Road Mechanicsburg , PA

(000061) 17055 Phone: (717) 691-3355


FAX: (717) 691-3366

Mechanicsburg, PA 5000 Ritter Road, Suite 102 Mechanicsburg , PA Mike Bougher, P.E.

17055-6922 Phone: (717) 691-3355 x3106


FAX: (717) 691-3366

Greenland Technical Writing & Consulting, LLC Main 604 Spring Lane East Stroudsburg , PA

(003190) 18301-3115 Phone: (570) 424-2090


FAX: (570) 424-2090

Greenman-Pedersen Inc Main 325 West Main Street Babylon , NY

(000434) 11702 Phone: (717) 724-4680


FAX: (717) 724-4683

Albany, NY 80 Wolf Road, Suite 300 Albany , NY Patrick Kenneally, P.E.

12205 Phone: (518) 453-9431


FAX: (518) 453-9458

Annapolis Jnct, MD 10977 Guilford Road Annapolis Jnct , MD Daniel J. Maletic

20701 Phone: (410) 880-3055


FAX: (301) 490-2649

Babylon, NY 325 W. Main Street Babylon , NY M. Denise Carter, PE

11702 Phone: (631) 587-5060


FAX: (631) 422-3479

Lebanon, NJ 100 Corporate Drive, Suite 301 Lebanon , NJ Gary Etter, PE

08833 Phone: (908) 236-9001


FAX: (908) 236-9669

Mechanicsburg, PA 4900 Ritter Road Mechanicsburg , PA Louis Norella, P.E.

17055 Phone: (717) 724-4680


FAX: (717) 724-4683

Orlando, FL 1722 W. Oark Ridge Road Orlando , FL James Humphrey, Sr.

32809 Phone: (407) 851-7880


FAX: (407) 855-8250

Scranton, PA 50 Glenmaura National Blvd. Scranton , PA Louis Norella, P.E.

18505 Phone: (570) 342-3700


FAX: (570) 342-4080

Greenstar Site Solutions, LLC Main 3 NORTH COURT STREET FREDERICK , MD

(004892) 21701 Phone: (301) 624-5755


FAX: (301) 624-5757

Greentree Consulting, Inc. Main 163 Stockton Street Highstown , NJ

(003385) 08520 Phone: (609) 490-0400


FAX: (609) 490-9544

Gresham Consulting, LLC Main 25 Skunk Hollow Rd. Chalfont , PA

(007260) 18914 Phone: (215) 997-0645


FAX: (215) 997-0643

GREYHAWK North America, LLC Main 260 Crossways Park Drive Woodbury , NY

(004987) 11797-2015 Phone: (856) 722-1800 x2670


FAX: (856) 722-1806

GRL Engineers, Inc. Main 4535 Renaissance Parkway Cleveland , OH

(000306) 44128-5701 Phone: (216) 831-6131


FAX: (216) 831-0916

California Branch Office 516 Crane Blvd Los Angeles , CA Camilo Alvarez

90065 Phone: (323) 441-0965


FAX: (323) 441-0975

Colorado Branch Office 7166 West Custer Ave Suite 332 Lakewood , CO Anna Klesney

80226 Phone: (303) 666-6127


FAX: (303) 666-6447

Florida Branch Office 8000 S. Orange Ave., Suite 225 Orlando , FL Mohamad Hussein

32809 Phone: (407) 826-9539


FAX: (407) 826-4747

Illinois Branch Office 1540 Dundee Road, Suite 108 Palatine , IL Patrick J. Hannigan

60074 Phone: (847) 670-7720


FAX: (847) 670-7008

North Carolina Branch Office 9912 Colvard Circle Charlotte , NC Scott Webster

28269 Phone: (704) 593-0992


FAX: (704) 593-0993

Ohio Branch Office 4535 Renaissance Parkway Cleveland , OH Michael Morgano

44128 Phone: (216) 292-3076


FAX: (216) 831-0916

Pennsylvania Branch Office 224 Wilmington W Chester Pike Chadds Ford , PA Wondem Teferra

19317 Phone: (610) 459-0278


FAX: (610) 459-0279

Ground Technology, Inc. D/B/A D'Appolonia Engineering Division of Ground Technology, Inc. Main 275 Center Road Monroeville , PA

(000114) 15145-1451 Phone: (412) 856-9440


FAX: (412) 856-9535

Groundwater & Environmental Services, Inc. Main 410 Eagleview Boulevard Exton , PA

(001581) 19341 Phone: (800) 426-9871 x3030


FAX: (610) 458-7026

GES Central PA 6 Sheraton Drive Altoona , PA Guy L. Livingston

16601 Phone: (866) 800-0716 x4293


FAX: (814) 940-8047

GES Western PA 800 Commonwealth Drive Warrendale , PA Jon Agnew

15086 Phone: (800) 267-2549 x3636


FAX: (724) 779-4617

Group Hanover Incorporated Main 213 Carlisle Street Hanover , PA

(005816) 17331 Phone: (717) 637-3800 x105


FAX: (717) 633-9143

Grove City Revitalization, Inc. Main Box #531 Grove City , PA

(003090) 16127 Phone: (724) 458-0324


FAX: (724) 458-4050

Grove Miller Engineering, Inc. Main 4800 Linglestown Road Harrisburg , PA

(000131) 17112 Phone: (717) 545-3636


FAX: (717) 545-3535

GSP Environmental Sampling, Inc. Main PO Box 312 New Alexandria , PA

(003714) 15670 Phone: (724) 668-2902


FAX: (724) 668-2903

GST Environmental Services, Ltd Main 309 Highland Terrace Pittsburgh , PA

(004005) 15215 Phone: (412) 418-6019


FAX: (412) 781-3013

GTS Consultants, Inc. Main 2 Monmouth Avenue, Unit A1 Freehold , NJ

(005001) 07728 Phone: (732) 409-0900


FAX: (732) 409-0927

Gulf Coast Property Acquisition, Inc. Main 2525 Drane Field Road, Suite 8 Lakeland , FL

(002217) 33811 Phone: (863) 647-9413


FAX: (863) 647-9513

Guthrie Diving Company, Inc. Main 14204 Dav Road Rockville , MD

(000201) 20850 Phone: (301) 309-9521


FAX: (301) 309-0682

GuyAmerica Trucking, LLC Main 1212 Chastain Drive, NE Atlanta , GA

(007282) 30342 Phone: (404) 309-6950


Gwin, Dobson & Foreman, Inc. Main 3121 Fairway Drive Altoona , PA

(000176) 16602-4475 Phone: (814) 943-5214


FAX: (814) 943-8494

GZA GeoEnvironmental, Inc. Main 501 Office Center Drive Fort Washington , PA

(005656) 19034-3220 Phone: (215) 591-3800 x3612


FAX: (215) 591-3810

H & J, International, PC Main 4037 Runnymead Drive, Ste B Collegeville , PA

(004390) 19426 Phone: (610) 489-1470


FAX: (610) 489-6340

H D Forming Company, Inc. Main 1496 Butler Plank Road Glenshaw , PA

(005959) 15116 Phone: (412) 487-2900


FAX: (412) 487-1293

H. Edward Black and Associates, P.C. Main 2403 North Front Street Harrisburg , PA

(000235) 17110-1145 Phone: (717) 233-1026


FAX: (717) 233-2192

H. R. Gray & Associates, Inc. Main 3770 Ridge Mill Drive Hilliard , OH

(005306) 43026-6247 Phone: (614) 487-1335 x274


FAX: (614) 487-8686

H. W. Lochner, Inc. Main 20 N. Wacker Drive Chicago , IL

(001806) 60606 Phone: (724) 745-0920


FAX: (724) 745-0950

Chicago 20 North Wacker Drive Chicago , IL Frank Powers

60606 Phone: (312) 372-3011


FAX: (312) 372-5974

Connecticut 2110 Silas Deane Highway Rocky Hill , CT Jeanne Cormier

06489 Phone: (860) 513-4003


FAX: (860) 513-4006

New York 181 Genesee Street, Suite 300 Utica , NY Mark Pawlick

13501 Phone: (315) 793-9500


FAX: (315) 793-9530

Pittsburgh 400 Technology Drive Canonsburg , PA Sean Henderson

15317 Phone: (724) 745-0920


FAX: (724) 745-0950

H.F. Lenz Company Main 1407 Scalp Avenue Johnstown , PA

(000054) 15904-3329 Phone: (814) 269-9300 x305


FAX: (814) 269-9301

H.F. Lenz Company - Ohio 322 State Street Conneaut , OH John M. Dombrowski, P.E.

44030 Phone: (440) 599-7800


FAX: (440) 599-7801

H.F. Lenz Company - Pittsburgh 1051 Brinton Road Pittsburgh , PA Robert F. Stano, P.E.

15221 Phone: (412) 371-9073


FAX: (412) 371-9076

H&A Consulting Engineers Main 90 South Newtown Street Rd. Newtown Square , PA

(000333) 19073-4041 Phone: (610) 359-0430 x202


FAX: (610) 359-0432

H&R Consultant Group of Ohio Main 1650 West Market St., Ste 17 Akron , OH

(003956) 44313 Phone: (330) 869-0667


FAX: (330) 869-0668

H&S Enviromental, Inc. Main 1257 Worcester Road, #310 Framingham , MA

(003375) 01701 Phone: (508) 405-0980


FAX: (508) 861-0305

Hager GeoScience, Inc. Main 596 Main Street Woburn , MA

(004463) 01801-2924 Phone: (781) 935-8111


FAX: (781) 935-2717

Hager-Richter Geoscience, Inc. Main 8 Industrial Way - D10 Salem , NH

(004104) 03079 Phone: (603) 893-9944


FAX: (603) 893-8313

HAKS Engineers, Architects and Land Surveyors, P.C. Main 40 Wall Street, 11th Floor New York , NY

(001376) 10005 Phone: (215) 496-9322


FAX: (215) 496-9323

HAKS Engineers, P.C. 161 Maiden Lane, 5th Floor New York , NY Husam Ahmad, P.E.

10038 Phone: (212) 747-1997 x516


FAX: (212) 747-1947

Halcrow, Inc. Main 560 Herndon Parkway Herndon , VA

(004726) 20170 Phone: (804) 270-0452


FAX: (804) 270-2808

Haley & Aldrich, Inc. Main 465 Medford Street, Suite 2200 Boston , MA

(000341) 02129-1400 Phone: (617) 886-7400 x7449


FAX: (617) 886-7600

Hall Planning & Engineering, Inc. Main 322 Beard Street Tallahassee , FL

(006033) 32303 Phone: (850) 222-2277


Hampton-Clarke, Inc. Main 175 Route #46 West Fairfield , NJ

(001068) 07004 Phone: (973) 244-9770 x101


FAX: (973) 244-9787

Handex Consulting & Remediation-Northeast, LLC Main 24 Abeel Road Monroe , NJ

(006392) 08331 Phone: (609) 409-6999 x1212


FAX: (609) 409-7453

Handon Diving Service, Inc. Main 1218 Irving Street, N.E. Washington , DC

(001204) 20017 Phone: (202) 529-1809


FAX: (202) 832-5402

Hanifin Associates, Inc. Main 10 Allen Street, Suite 2B Toms River , NJ

(000299) 08753 Phone: (732) 244-9300


FAX: (732) 244-9300

Hanover Engineering Associates,Inc. Main 252 Brodhead Road, Suite 100 Bethlehem , PA

(000313) 18017-8937 Phone: (610) 691-5644 x213


FAX: (610) 691-6968

Hanover Land Services, Inc. Main 585 McAllister Street Hanover , PA

(005162) 17331-3324 Phone: (717) 637-5674


FAX: (717) 633-1987

Maryland Office 2001 Meadow Drive Westminster , MD Kristin Barmoy

21158 Phone: (410) 857-0210


FAX: (410) 857-8030

Hanover Sales & Service, Inc. Main 137 RYBACKI DRIVE CLINTON , PA

(002435) 15026 Phone: (724) 899-3099 x000000


FAX: (724) 899-3085

Hanson Professional Services Inc. Main 1525 South Sixth Street Springfield , IL

(007103) 62703 Phone: (217) 788-2450


FAX: (217) 788-2503

Happy Valley Construction and Excavation, LLC Main 802 Meeks Lane Port Matilda , PA

(003621) 16870 Phone: (814) 861-3870


FAX: (814) 861-3890

Hardesty & Hanover, LLP Main 850 Bear Tavern Road Trenton , NJ

(001353) 08628 Phone: (212) 944-1150


FAX: (212) 391-0297

Hardlines Design Company Main 4608 Indianola Avenue Columbus , OH

(004083) 43214-2887 Phone: (614) 784-8733


FAX: (614) 784-9336

Harris Miller Miller & Hanson Inc. Main 77 South Bedford Street Burlington , MA

(005515) 01803 Phone: (781) 229-0707


FAX: (781) 229-7939

Harris Miller Miller & Hanson Inc. 808 Moorefield Park Dr. Richmond , VA Robert Gibson

23236-3672 Phone: (804) 272-0777


FAX: (804) 272-4166

Harry R. Hall, P.E. Main 69 Market Street , Suite 102 Brownsville , PA

(001523) 15417 Phone: (724) 785-8130


FAX: (724) 724-8131

Harte Engineering, Inc. Main 649 E. Broad Street Bethlehem , PA

(003447) 18018 Phone: (610) 865-6543


FAX: (610) 865-6580

Hatch Mott MacDonald, I&E Inc. Main 27 Bleeker Street Millburn, , NJ

(001662) 07041 Phone: (973) 379-3400


FAX: (973) 376-1072

Hatch Mott MacDonald, LLC Main 1600 West Carson Street Pittsburgh , PA

(001667) 15219 Phone: (412) 497-2900


FAX: (412) 497-2901

Buffalo 438 Main Street Buffalo , NY James Walsh, PE

14202 Phone: (716) 854-1181


FAX: (716) 854-1800

Cleveland 18013 Cleveland Parkway Drive Cleveland , OH Michael Vitale, PE

44135 Phone: (216) 535-3652


FAX: (216) 265-2816

Millburn 111 Wood Avenue South, Suite 500 Iselin , NJ Marco Levoyer, PE

08830-1005 Phone: (973) 912-7532


FAX: (973) 379-8970

Morgantown 2601 Cranberry Square Morgantown , WV Timothy M. Rice

26508 Phone: (304) 212-4390


FAX: (304) 594-2814

New York City 1400 Broadway, 30th Floor New York , NY Roland Ericsson

10018 Phone: (212) 589-1111


FAX: (212) 532-3973

Rockville 15245 Shady Grove Road Rockville , MD Foster J. Beach, PE

20850 Phone: (240) 361-3000


FAX: (240) 361-3020

Haupt Group, LLC Main 14 Doulton Road Pittsburgh , PA

(006114) 15229-1004 Phone: (412) 370-8325


FAX: (412) 367-1043

Hawk Engineering Services, PC Main One Progress Plaza, Suite 11 Towanda , PA

(000150) 18848-1656 Phone: (570) 265-5266


FAX: (570) 265-6997

Hawk Engineering, PC 222 Water Street, Suite 201 Binghamton , NY Laura H. Tuttle-Moore

13902-0427 Phone: (607) 584-0140 x211


FAX: (607) 584-0139

Hawk Engineering, PC Main 222 Water Street Binghamton , NY

(003416) 13901 Phone: (607) 584-0140


FAX: (607) 584-0139

Hawk Engineering, PC - Towanda One Progress Plaza Towanda , PA Thomas E. O'Connor, PE

18848-0000 Phone: (570) 265-5266


FAX: (570) 265-6997

HawkMtn Lab, Inc. Main 201 West Clay Avenue Hazle Township , PA

(004636) 18202 Phone: (570) 455-6011


FAX: (570) 455-6321

Hayes, Seay, Mattern & Mattern, Inc., dba Watershed Concepts Main 315 South Allen Street State College , PA

(003903) 16801 Phone: (814) 235-1379 x4152


FAX: (814) 235-1495

Washington DC 1155 21st Street NW Washington , DC Tracy Cain

20036 Phone: (202) 721-7739


FAX: (202) 721-7701

HB Engineering, Inc. Main 443 Hershey Road Hummelstown , PA

(005538) 17036 Phone: (717) 220-0011


FAX: (717) 482-2005

HDR Engineering, Inc. Main 11 Stanwix Street Pittsburgh , PA

(000028) 15222-1357 Phone: (412) 497-6000 x6095


FAX: (412) 497-6080

Bethlehem, PA 1720 Spillman Drive Bethlehem , PA William K. Ahlert

18015-2165 Phone: (610) 807-5100


FAX: (610) 807-5101

Conshohocken, PA 375 Elm Street Conshohocken , PA Christopher McJetters

19428-1973 Phone: (610) 949-9699


Dallastown, PA 2782 S. Queen Street Dallastown , PA Domenic Sacchetti, P.E.

17313 Phone: (717) 515-1797


King of Prussia, PA 1016 W. 9th Avenue King of Prussia , PA James Van Dien, P.E.

19406-1221 Phone: (484) 612-1105


FAX: (484) 612-1140

Philadelphia, PA 2 Penn Center, Suite 711 Philadelphia , PA Hota Sarma

19102-1732 Phone: (215) 988-9375


Health & Safety Services, Inc. Main 318 12th Street Hammonton , NJ

(007618) 08037 Phone: (609) 704-8850


FAX: (609) 561-7646

Heberling Associates, Inc. Main 904 Main Street Alexandria , PA

(000072) 16611 Phone: (814) 669-1280


FAX: (814) 669-1282

Pittsburgh 140 Teece Ave Pittsburgh , PA Scott Heberling

15202 Phone: (412) 766-0919


FAX: (412) 766-0919

Hedges Occupational Health Advisors, Inc. Main 609 South Devon Avenue Wayne , PA

(002826) 19087-2957 Phone: (610) 687-3969


FAX: (610) 687-1288

Heery International, Inc. Main Metro-Plex 11, Suite 800, Landover , MD

(000369) 20785-2230 Phone: (301) 577-9408


FAX: (301) 577-9472

Baltimore 100 East Pratt Street Baltimore , MD Nancy Cook

21201 Phone: (410) 685-7624


FAX: (410) 685-2506

Hegemann and Wray Consulting Engineers Main 429 Park Avenue Cresson , PA

(007193) 16630 Phone: (814) 886-8870


FAX: (814) 886-8870

Heinrich & Klein Associates, Inc. Main 480 Herald Drive Ambler , PA

(005688) 19002 Phone: (215) 793-4177


FAX: (215) 793-4179

Henderson Energy Consulting LLC Main 185 Birkdale Drive Blue Bell , PA

(004284) 19422 Phone: (610) 659-3646


FAX: (610) 659-3646

Herbert, Rowland & Grubic, Inc. Main 369 East Park Drive Harrisburg , PA

(000129) 17111-2730 Phone: (717) 564-1121


FAX: (717) 564-1158

Columbiana 330 North Main Street Columbiana , OH Timorthy Schram

44408 Phone: (330) 482-9622


FAX: (330) 482-9629

Hermitage 3755 East State Street Hermitage , PA Dan Dow, P.E.

16148 Phone: (724) 983-1860


FAX: (724) 983-1804

Lancaster 1846 Charter Lane Lancaster , PA Andrew Kenworthy, P.E.

17605 Phone: (717) 291-1783


FAX: (717) 291-2093

Lewisburg 130 Buffalo Road Lewisburg , PA Jason Fralick, P.E.

17837 Phone: (570) 524-6744


FAX: (570) 524-6779

Morgantown 829 Fairmont Road Morgantown , WV Samer Petro, P.E.

26501 Phone: (304) 284-9222


FAX: (304) 284-9223

Pittsburgh 200 W. Kensinger Drive, Suite 400 Cranberry Township , PA Jim Lopresti, P.E.

16066 Phone: (724) 779-4777


FAX: (724) 779-4711

State College 474 Windmere Drive State College , PA Jason Fralick, P.E.

16801 Phone: (814) 238-7117


FAX: (814) 238-7126

Heritage Investment Corporation d/b/a Heritage Consulting Group Main 89 Bethlehem Pike Philadelphia , PA

(003330) 19118 Phone: (215) 248-1260


FAX: (215) 248-1261

Heritage Metalworks, Ltd. Main 2089 Bondsville Road Downingtown , PA

(006503) 19335 Phone: (610) 518-3999


FAX: (610) 518-7264

Herpetological Associates, Inc. Main 575 Toms River Road Jackson , NJ

(003479) 08527 Phone: (717) 933-8380


FAX: (717) 933-4096

Heston Consulting Co., Inc. Main 15 Airport Road Belle Vernon , PA

(000117) 15012-2934 Phone: (724) 379-9570


FAX: (724) 379-9574

HGM Management and Technologies, Inc. Main 1150 17th Street, NW Washington , DC

(000804) 20036 Phone: (202) 467-8034


FAX: (202) 429-6655

HHSDR, Inc.(trading as HHSDR Architects/Engineers) Main 40 Shenango Avenue Sharon , PA

(008178) 16146-1502 Phone: (724) 981-8820


FAX: (724) 981-4515

Hibbeln Engineering Co, LLC Main 593 Skippack Pike Blue Bell , PA

(001965) 19422-2161 Phone: (215) 619-9070


FAX: (215) 619-9071

High Street Consulting Group, LLC Main 2306 Washington Avenue Chevy Chase , MD

(007063) 20815 Phone: (240) 252-5111


High-Def Survey, Inc Main 24 W. Sellers Ave Ridley Park , PA

(005947) 19078 Phone: (484) 702-2341


Highland Associates, LTD Architecture Engineering Interior Design Main 102 Highland Avenue Clarks Summit , PA

(007488) 18411 Phone: (570) 586-4334 x3116


FAX: (570) 587-8164

Highland Professional Consultants, Inc. Main 6698 State Route 30 Jeannette , PA

(003626) 15644-3171 Phone: (724) 523-2845


FAX: (724) 527-1934

Jeannette Office 6698 State Route 30 Jeannette , PA Faith A. Blair

15644-3171 Phone: (724) 523-2845


FAX: (724) 527-1934

Highway Consulting Inc. Main 778 ourtown , PA

(006578) 13456 Phone: (570) 158-9654


Hilbish McGee Lighting Design, Inc. Main 402 Peebles St Sewickley , PA

(006623) 15143 Phone: (412) 749-0533


FAX: (412) 749-0523

Hill Engineering, Inc. Main 8 GIBSON ST NORTH EAST , PA

(003105) 16428 Phone: (814) 725-8659


FAX: (814) 725-3867

Hill International Inc. Main One Penn Square West Philadelphia , PA

(003654) 19102 Phone: (215) 557-3250


FAX: (215) 557-0214

Hill International Inc. Main One Penn Square West Philadelphia , PA

(003668) 19102-3010 Phone: (215) 557-3240


FAX: (215) 557-0214

Hill International, Inc. Main 30 South 15th Street, Suite 1301 Philadelphia , PA

(000080) 19102 Phone: (215) 557-3250


FAX: (215) 557-0214

Corporate Headquarters 303 Lippincott Centre Marlton , NJ Stuart S. Richter

08053 Phone: (856) 810-6200 x6290


FAX: (856) 810-4082

TCS 3580 Progress Drive, Suite 1 Bensalem , PA Lawrence R. Veit, PE

19020 Phone: (215) 633-8601 x226


FAX: (215) 633-8607

Hillis-Carnes Engineering Associates, Inc. Main 10975 Guilford Road Annapolis Junction , MD

(001768) 20701 Phone: (301) 662-2522 x104


FAX: (301) 662-5575

Hilti, Inc. Main Hilti, Inc. Tulsa , OK

(007126) 74146-6007 Phone: (800) 950-6119


FAX: (800) 950-6610

Hirani Engineering & Land Surveying, PC Main 16 Marsenna Lane Jonestown , PA

(000530) 17038 Phone: (717) 865-7044


FAX: (717) 865-1767

HM White Site Architects Main 130W 29th St New York , NY

(006062) 10001 Phone: (212) 868-9411 x12


FAX: (212) 868-9415

HNTB Corporation Main 1628 JFK Boulevard Philadelphia , PA

(000066) 19103 Phone: (215) 568-6500 x21108


FAX: (215) 568-4455

Harrisburg 4507 North Front Street Harrisburg , PA Yassmin Gramian

17110 Phone: (215) 568-6500 x21108


FAX: (215) 568-4455

Hoffman Borowski and Associates, LLC Main 73 E Forrest Ave Shrewsbury , PA

(006786) 17361 Phone: (717) 227-2320 x7011


Hord Coplan Macht, Inc. Main 750 East Pratt Street Baltimore , MD

(006751) 21202 Phone: (410) 837-7311 x315


FAX: (410) 837-6530

Horizon Engineering Associates, LLC. Main 428 Main Street Pennsburg , PA

(004404) 18073 Phone: (267) 923-8673 x112


FAX: (267) 923-8679

Horner & Canter Associates, P.C. Main 5049 Swamp Road Fountainville , PA

(004633) 18923 Phone: (267) 544-0805


FAX: (267) 544-0806

Hough Associates, Inc. Main 65 Christiana Road New Castle , DE

(001778) 19720-3104 Phone: (302) 322-7800


FAX: (302) 322-0283

Howard/Stein-Hudson Associates, Inc. Main 517 West 35th Street, 7th Floor NY , NY

(001573) 10001 Phone: (917) 339-0488


FAX: (917) 339-1068

Hoyle, Tanner & Associates, Inc. Main 150 Dow Street Manchester , NH

(000351) 03101 Phone: (603) 669-5555


FAX: (603) 669-4168

Hernando 2424 North Essex Avenue Hernando , FL Frank J. Schiraldi

34442 Phone: (352) 527-2055


FAX: (352) 527-2655

HTA Caribbean East Wing - Suite 740 St. Thomas , VI Leo H Francis

00802 Phone: (340) 777-4650


FAX: (340) 774-1666

Oviedo 95 East Mitchell Hammock Road Oviedo , FL Douglas N Norman

32765 Phone: (407) 380-1919 x16


FAX: (407) 380-1830

Portsmouth Pease International Tradeport Portsmouth , NH Dirk J. Grotenhuis, P.E.

03108 Phone: (603) 431-2520


FAX: (603) 431-8067

Vermont 125 College Street Burlington , VT Eugene J Forbes

05401 Phone: (802) 860-1331 x11


FAX: (802) 860-6499

Westborough 18 Lyman Street, Suite Q Westborough , MA David F. Edson, P.E.

01581 Phone: (508) 366-0772


FAX: (508) 366-1807

HQ Engineering, Inc. Main 753 Woodland Road Bradford Woods , PA

(000491) 15015-1329 Phone: (724) 934-3071


FAX: (724) 934-3071

HR&A Advisors, Inc. Main 99 Hudson Street New York , NY

(006018) 10013 Phone: (212) 977-5597


FAX: (212) 977-6202

HRMISSION, LLC Main 18 Hampton Drive Mount Bethel , PA

(008292) 18343-5797 Phone: (347) 386-9722


FAX: (718) 701-0962

HRP Associates, Inc. Main 197 Scott Swamp Road Farmington , CT

(001689) 06032 Phone: (860) 674-9570


FAX: (860) 674-9624

HRV Conformance Verification Associates, Inc. Main 200 Hightower Blvd., Suite 400 Pittsburgh , PA

(001962) 15205 Phone: (412) 788-2522


FAX: (412) 788-1697

Huck Surveying, Inc. Main 1173 Brownsville Road Wernersville , PA

(006530) 19565-9771 Phone: (610) 693-6447


FAX: (610) 693-8318

Hunt Engineering Company Main 22 East King Street Malvern , PA

(000136) 19355-0537 Phone: (610) 644-4600


FAX: (610) 644-2466

Hunt Engineers, Architects & Land Surveyors, PC Main Airport Corporate Park Horseheads , NY

(000304) 14845 Phone: (607) 358-1000


FAX: (607) 358-1800

Towanda PA office Progress Plaza Towanda , PA Chris Brewster

18848-1629 Phone: (607) 358-1079


Hunter Research Inc. Main 120 W. State Street Trenton , NJ

(007638) 08608-1102 Phone: (609) 695-0122 x100


FAX: (609) 695-0147

Hurley - Franks & Associates, Inc. Main 1500 Walnut Street Philadelphia , PA

(000227) 19102-3503 Phone: (215) 988-9440 x10


FAX: (215) 988-9441

Hurst-Rosche Engineers, Inc. Main Hurst-Rosche Engineers, Inc. Towson , MD

(000012) 21204 Phone: (717) 812-8407


FAX: (717) 812-8142

Hutchinson Group, Ltd. Main 4280 Old William Penn Highway Murrysville , PA

(002374) 15668-1922 Phone: (724) 325-3996


FAX: (724) 733-7901

Hyatt Construction LP Main RR1 Box 94A East Branch Road Wilcox , PA

(000370) 15870 Phone: (814) 965-2213


FAX: (814) 965-2729

Hydro Conduit Corporation Main 1501 W. Belvedere Road West Palm Beach , FL

(001650) 33406 Phone: (302) 378-8920 x13


Middletown Plant 800 Induistrial Drive Middletown , DE Bob Perrone

19709 Phone: (302) 378-8920 x13


FAX: (302) 378-8923

Pittsburgh Pipe Plant PO Box 126 Oakdale , PA Doug Steel

15071 Phone: (412) 923-2490


FAX: (724) 693-2881

Hyung Seok Jeong dba Hyung Seok Jeong Main 3130 Greenwood Rd Ames , IA

(007939) 50014 Phone: (515) 598-2282


H2 Engineering Services, Inc. Main 6 Kacey Court Mechanicsburg , PA

(004448) 17055 Phone: (717) 620-8488


FAX: (717) 620-8489

Altoona Office 3119 Pleasant Valley Blvd Altoona , PA Allen Thompson

16602 Phone: (814) 381-0881


FAX: (814) 381-0882

H2L2 Architects/Planners, LLC Main 714 Market Street Philadelphia , PA

(000115) 19106 Phone: (215) 925-5300


FAX: (215) 925-0347

H2L2 Architects/Planners, LLP - New York 80 Broad Street New York , NY Shoshanah Murray

10004 Phone: (215) 925-5300 x327


FAX: (215) 925-0347

I.C. SOLUTIONS LTD Main 2 JERSEY STREET HARRIOSN , NJ

(000311) 07029 Phone: (973) 485-4014


FAX: (973) 485-9722

i-Squared Main 1501 Reedsdale St Pittsburgh , PA

(003632) 15233 Phone: (412) 321-8214


FAX: (412) 321-8219

I-T'AN YU and Associates, Inc. Main 2210 Walnut Street Philadelphia , PA

(003191) 19103-5521 Phone: (215) 636-9771


FAX: (215) 636-9976

IBEW Local Union 126 Main 3455 Germantown Pk Collegeville , PA

(005181) 19426 Phone: (610) 489-1185


FAX: (610) 489-6988

IBI Group Main 115 Broad Street Boston , MA

(000245) 02110 Phone: (617) 450-0701


FAX: (617) 450-0702

iCivil Inc. Main 4107 Baker Valley Road Frederick , MD

(005962) 21704 Phone: (240) 575-4423


FAX: (240) 390-2359

ICON Architecture, Inc. Main ICON architecture, inc. Boston , MA

(005989) 02111 Phone: (617) 451-3333


FAX: (617) 451-1328

IEI Group, Ltd. Main 428 North 2nd Street Philadelphia , PA

(002224) 19123 Phone: (215) 413-3700


FAX: (215) 413-3773

IH Engineers, P.C. Main 103 College Road East 1st Floor Princeton , NJ

(003502) 08540 Phone: (609) 734-8400


FAX: (609) 734-8405

Illumination Arts LLC Main 41 Davis Avenue Bloomfield , NJ

(002716) 07003 Phone: (973) 771-1556


FAX: (973) 771-1558

Images Technology Group, LLC Main 205 Filly Drive North Wales , PA

(001960) 19454-4299 Phone: (215) 412-9989


FAX: (215) 549-1519

IMDC, Inc. Main 1060 Maitland Center Commons Blvd Maitland , FL

(005492) 32751 Phone: (407) 645-4049


FAX: (407) 645-1230

Indiana University of Pennsylvania Main Engineering & Construction Indiana , PA

(002306) 15954 Phone: (724) 357-2289


FAX: (724) 357-6480

Industrial Control and Computer Consultants, Inc. Main 248-B West 2nd Street Waynesboro , PA

(000357) 17268-2626 Phone: (717) 762-4044


FAX: (717) 762-0893

Infinite Engineering Solutions, P.C. Main 60 Blind Rock Road Queensbury , NY

(007988) 12804 Phone: (518) 232-6017


FAX: (518) 883-7484

InFocus Planning, LLC Main 407 Wellesley Road Philadelphia , PA

(006869) 19119 Phone: (267) 336-7411


FAX: (267) 775-5315

Infogroup, Inc. Main 1020 East 1st Street Papillion , NE

(007234) 68046 Phone: (800) 808-1113 x61289


FAX: (402) 836-1289

Information Services Group, Inc Main 200 Airport Road, Suite 100 New Cumberland , PA

(000342) 17070 Phone: (717) 774-0709 x18


FAX: (717) 774-3637

InfraMap Corp. Main Windsor Industrial Park Windsor , NJ

(000035) 08561 Phone: (804) 550-2937 x226


FAX: (804) 550-3296

InfraMap Corp Verona, PA 557 Church Street Verona , PA Ken Kerr

15147 Phone: (609) 371-5420 x405


FAX: (609) 371-5423

InfraMap Corp APG, MD Susquehanna Avenue APG , MD Kevin Ready

21005 Phone: (410) 850-0280 x304


FAX: (410) 850-4167

InfraMap Corp. West Palm Beach, FL 1860 Old Okeechobee Rd. West Palm Beach , FL Jay Scagliola

33409 Phone: (561) 586-0790 x503


FAX: (561) 568-1171

InfraMap Corp. Atlanta, GA 3525 Piedmont Road Atlanta , GA Steve Armendinger

30305 Phone: (804) 550-2937 x238


FAX: (804) 550-3296

InfraMap Corp. Baltimore, MD 3739 Old Georgetown Road Baltimore , MD Kevin Ready

21227 Phone: (410) 850-0280 x304


FAX: (410) 850-4167

InfraMap Corp. Glen Allen, VA 10365 Cedar Lane Glen Allen , VA Stephen Armendinger

23059-1925 Phone: (804) 550-2937 x238


FAX: (804) 550-3296

InfraMap Corp. Windsor, NJ 92 North Main Street Windsor , NJ Kenneth Kerr

08520 Phone: (609) 371-5420 x405


FAX: (609) 371-5423

Infrastructure Engineering & Construction Group, LLC Main 150A Love Road Reading , PA

(006008) 19607 Phone: (610) 334-0120


FAX: (610) 685-1306

Infrastructure Engineers, Inc. Main 2121 Old Hickory Tree Road Saint Cloud , FL

(000786) 34772 Phone: (407) 957-1660 x2004


FAX: (407) 957-8744

Jacksonville, FL Office 2511 St. Johns Bluff Road, Suite 103 Jacksonville , FL Chris Howard, PE

32246 Phone: (904) 645-3992


FAX: (904) 645-3993

Newport, KY 300 East 3rd Street, Suite 1E Newport , KY Brian Dietrich, PE

41071 Phone: (702) 597-2555


Ohio Office 200 East Campus View Blvd., Suite 200 Columbus , OH Jose Costa, PE

43235 Phone: (614) 310-3048


FAX: (614) 430-8781

Oviedo, FL 400 West SR 434, Suite 1016 Oviedo , FL Greg Peschong, PE

32765 Phone: (407) 957-1660 x2201


Pennsylvania Office 1370 Washington Pike Bridgeville , PA Frank Mayer, P.E.

15017 Phone: (412) 257-2898


FAX: (412) 257-0139

South Carolina Office 1460 John B. White Sr. Blvd. Suite 1C Spartanburg , SC Jeff Rowe, PE

29306 Phone: (864) 595-8030


FAX: (864) 595-8034

Virginia Office 4870 Sadler Road, Suite 300 Glen Allen , VA Brett Frazer, PE

23060 Phone: (804) 205-5122


Infrastructure Management Group, Inc. Main 4733 Bethesda Avenue, Suite 600 Bethesda , MD

(007866) 20814 Phone: (301) 907-2900


FAX: (301) 907-2906

Infrastructure Services, Inc. Main 55 E. Cuyahoga Falls Avenue Akron , OH

(000281) 44310 Phone: (330) 253-4888


FAX: (330) 253-4586

Ingenious Networks, LLC Main 2251 Forest Hills Drive Harrisburg , PA

(005308) 17112 Phone: (717) 364-2080


FAX: (717) 914-1675

Ingram Engineering Services, Inc. Main 16 Hagerty Blvd. West Chester , PA

(005677) 19382 Phone: (484) 947-5549


FAX: (610) 431-7015

InLand Design, LLC Main 759 East Lincoln Hwy. Exton , PA

(007801) 19341-9998 Phone: (484) 872-8260


FAX: (484) 872-8261

Innovative Business Concepts, Inc Main 1919 Chestnut Street Philadelphia , PA

(002180) 19103 Phone: (215) 440-7220


FAX: (215) 923-8329

Innovative Consulting Group, Inc. Main 2817 Industrial Avenue Altoona , PA

(000514) 16602 Phone: (814) 946-1675


FAX: (814) 946-9009

Pittsburgh 1910 Cochran Road Pittsburgh , PA Phillip D. Sipes

15220 Phone: (412) 306-0139


FAX: (814) 946-9009

Inspect Tech Main 4551 Forbes Ave. Pittsburgh , PA

(002264) 15213 Phone: (412) 681-1521


FAX: (412) 682-3068

Inspection Engineers, Inc. Main 1203 Zucco Lane Johnstown , PA

(002089) 15905 Phone: (814) 255-3662


FAX: (814) 255-2051

Inspection Enterprises, Inc. Main 10702 Vandor Lane Manassas , VA

(002714) 20109 Phone: (800) 827-4133


FAX: (717) 768-0808

InspectTech Systems Inc. Main 810 River Avenue Pittsburgh , PA

(003080) 15212 Phone: (412) 681-1521


FAX: (412) 321-1850

INTDEG LLC Main 20 White Pine Drive Orrtanna , PA

(007989) 17353-9609 Phone: (443) 791-1600


FAX: (717) 521-1289

Integrated Contractors, Suppliers and Consultants LLC Main 1501 North Cameron Street (Rear) Harrisburg , PA

(002194) 17106-0637 Phone: (717) 233-5160


FAX: (171) 233-5163

Integrated Engineering, LLC Main 2160 Esten Road Quakertown , PA

(005703) 18951 Phone: (267) 347-4396


FAX: (215) 701-4324

Integrated Technology Solutions, Inc. Main 8775 Cloudleap Court, Suite 200 Columbia , MD

(000887) 21045 Phone: (410) 772-3900


FAX: (410) 772-7374

Interstate Acquisition Services Main 1100 Liberty Avenue Pittsburgh , PA

(000367) 15222-4240 Phone: (412) 261-5677


FAX: (412) 261-9910

Keystone Commons 650 Braddock Avenue East Pittsburgh , PA Jim Hoover

15112 Phone: (412) 823-4394


FAX: (412) 823-4397

Orwigsburg 1253 Centre Turnpike Orwigsburg , PA Paul Goida

17961-0000 Phone: (570) 366-5490


FAX: (570) 366-5493

Philipsburg 227 Rick Street Philipsburg , PA Charles Brannigan

16866 Phone: (814) 342-1070


FAX: (814) 342-1072

Trevose Five Neshaminy Interplex Trevose , PA John Leinmiller

19053-2959 Phone: (215) 245-2960


FAX: (215) 245-2959

York 2500 Kingston Court York , PA Bernie Kametz

17042-3654 Phone: (717) 757-6101


FAX: (717) 757-6182

INTEX Environmental Group, Inc. Main 6205 Easton Road Pipersville , PA

(000045) 18947-1025 Phone: (215) 766-7230 x214


FAX: (215) 766-9730

InVision Engineers, P.C. Main 1700 Market Street Philadelphia , PA

(006089) 19103 Phone: (215) 896-6264


FAX: (215) 234-4131

New Jersey 16 Manley Road Pennington , NJ Dr. Nazhat Aboobaker, P.E.

08534 Phone: (215) 854-6313


FAX: (215) 569-0216

New York Office 116 West 23rd Street New York , NY Khalid Shaikh

11011 Phone: (212) 222-8823


FAX: (212) 222-8860

Irick, Eberhardt & Mientus, Inc. Main Suite 3 Pennsburg , PA

(004946) 18073 Phone: (215) 541-4626


FAX: (215) 541-4023

Iron lady Enterprises, Inc. Main Iron Lady Enterprises, Inc. Philadelphia , PA

(006474) 19130-1528 Phone: (267) 973-8626


FAX: (208) 475-9792

Isaac Stephens & Associates Main 214 Paper Mill Road Oreland , PA

(003694) 19075-2109 Phone: (215) 576-8502


FAX: (215) 576-5414

Isaac Ventures, LLC Main 26 Woodlawn Ave. Harveys Lake , PA

(006894) 18618 Phone: (570) 991-3733


FAX: (570) 519-0017

ISMF LLC Main 3017 Duxburry Drive York , PA

(007991) 17404 Phone: (717) 683-9891


Iteris, Inc. Main 1700 Carnegie Avenue Santa Ana , CA

(008024) 92705-5551 Phone: (949) 270-9400


Sterling, VA 107 Carpenter Drive Sterling , VA Moe Zarean

20164 Phone: (703) 925-3810


FAX: (703) 471-1757

IUP Research Institute Main 210 South Tenth St. Indiana , PA

(002544) 15705 Phone: (724) 357-4033


FAX: (724) 357-7697

Iverson Associates, Inc. Main 134 Rock Hill Rd # 1 Bala Cynwyd , PA

(000667) 19004-2133 Phone: (610) 668-4190


FAX: (610) 668-7190

J. David Grace d/b/a CKG Architects Main 814 West Venango Street Philadelphia , PA

(002005) 19129 Phone: (215) 228-8150


FAX: (215) 225-2192

J. G. Park Associates, Inc. Main 1084 Taylorsville Road Washington Crossing , PA

(003769) 18977 Phone: (215) 493-5546


FAX: (215) 493-5663

J. Muller International, Inc. Main 250 Park Avenue South, 9th Floor New York , NY

(000265) 10003 Phone: (212) 979-0202


FAX: (212) 979-0303

J. Scott Bush Company, P.C. Main 369 Stone Church Road Grindstone , PA

(002326) 15442 Phone: (724) 246-0936


FAX: (724) 246-0336

J.A. Rice, Inc. Main 408 Headquarters Drive Millersville , MD

(007602) 21108 Phone: (410) 987-4286


FAX: (410) 987-3633

J-Way, LLC d/b/a J-Way Architectural Main 413 Whiskey Springs Rd. Summerhill , PA

(005830) 15958 Phone: (814) 495-3225


FAX: (814) 495-3225

Jack L. McSherry Jr. Inc. Main 150 Indian Hill Rd. Conestoga , PA

(005844) 17516 Phone: (717) 464-4336


FAX: (717) 464-0522

Jacobs Civil, Inc. Main Three Tower Bridge Conshohocken , PA

(000284) 19428-2074 Phone: (610) 832-2669


FAX: (610) 238-1100

Jacobs Engineering Group, Inc. Main CT Corporation Philadelphia , PA

(004561) 19102 Phone: (610) 701-7000 x1114


FAX: (610) 696-3550

Baltimore, MD 100 South Charles Street Baltimore , MD Kenneth R. Marshall, PE

21201 Phone: (410) 837-5840


FAX: (410) 837-3277

Conshohocken, PA Two Ash Street Conshohocken , PA Valeria Fitzgerald

19428 Phone: (610) 238-1130


FAX: (610) 238-1100

Morristown, NJ 299 Madison Avenue Morristown , NJ Richard Tangel

07962-1936 Phone: (973) 267-0555


FAX: (973) 267-3555

New York, NY Two Penn Plaza New York , NY Michael P. Cavanaugh, PE

10121-0101 Phone: (212) 944-2000


FAX: (212) 481-9484

Philadelphia, PA - 1700 Market St. 1700 Market Street Philadelphia , PA Anthony Zeloyle, P.E.

19103-3913 Phone: (267) 234-9500


FAX: (267) 234-9501

Philadelphia, PA - 2301 Chestnut St. 2301 Chestnut Street Philadelphia , PA John Robinson, AIA

19103 Phone: (215) 569-5959

FAX: (215) 569-5963

Pittsburgh, PA Eight Penn Center West Pittsburgh , PA Henry Nutbrown

15276 Phone: (412) 249-3464


FAX: (412) 249-3474

Trevose, PA 900 Northbrook Drive Trevose , PA Joseph (Jay) Roth, III, PE

19053 Phone: (215) 355-3577


FAX: (215) 355-3147

West Chester, PA 1247 Ward Avenue West Chester , PA Stanley Niemczak, PE

19380-4259 Phone: (610) 701-7000


FAX: (610) 696-3550

Jacqueline S. Olexa, DBA Spun Gold Designs Main 2175 Herbert Drive Bethlehem , PA

(001725) 18018-1311 Phone: (888) 716-0100


FAX: (484) 214-0026

JAG'D Construction, Inc. Main 379 Porter Avenue Campbell , OH

(004587) 44405 Phone: (330) 506-1294


JAMA Enterprises, Inc. dba Strategic Consulting Partners Main 712 Sunhaven Circle Mechanicsburg , PA

(003251) 17055-7500 Phone: (717) 790-8723


FAX: (717) 790-8724

James A. McGee Engineering Main 202 Virginia Avenue Punxsutawney , PA

(001760) 15767-2328 Phone: (814) 938-7210


FAX: (814) 938-0324

James Corner Field Operations, LLC Main 475 10th Avenue New York , NY

(003691) 10018 Phone: (212) 433-1450 x221


FAX: (212) 433-1451

James H Hildum DBA Hildum Electric Main 5100 Irene Drive Harrisburg , PA

(005239) 17112 Phone: (717) 564-6211


FAX: (717) 564-6211

James P. Sposito d/b/a James P. Sposito, P.G. Main 11 Archbald St. Carbondale , PA

(003446) 18407-2502 Phone: (570) 282-2819


FAX: (570) 282-2819

James W. Quandel & Sons, Inc. Main 9 N. Schaeffers Hill Rd Minersville , PA

(004159) 17954-0220 Phone: (570) 544-2261


FAX: (570) 544-5736

Janka Ovcharovichova D/B/A JJO Consulting Main 2 Oakwood Court Camp Hill , PA

(001386) 17011-1547 Phone: (717) 557-5750


Janssen & Spaans Engineering, Inc. Main 9155 Harrison Park Court Indianapolis , IN

(000307) 46216 Phone: (317) 254-9686 x222


FAX: (317) 259-8262

Jason Elwell d/b/a Elwell-Stuart Landscape Architecture Main PO Box 1208 Skippack , PA

(003629) 19474 Phone: (215) 514-7172


FAX: (215) 564-1157

Jastrzebski Engineres, Inc. Main 1112 Upper State Road Chalfont , PA

(004243) 18914-2505 Phone: (215) 822-1587


FAX: (215) 822-2769

JBC Associates, Inc. Main 120 S. Warner Rd. King of Prussia , PA

(000085) 19406 Phone: (610) 992-9090


FAX: (610) 992-9099

JCMS, Inc. (Jois Construction Management System) Main 1741 Whitehorse Mercerville Road Mercerville , NJ

(000435) 08619 Phone: (609) 631-0700


FAX: (609) 631-0808

JDM Consultants, LLC (DBA Penn Strategies) Main 300 N. 2nd Street Harrisburg , PA

(008243) 17101 Phone: (717) 743-1627 x288


Jeff Zell Consultants, Inc. Main 1031 Fourth Avenue Coroaopolis , PA

(000195) 15108 Phone: (412) 262-2022


FAX: (412) 262-1979

Zell Engineers, Inc. 2200 Liberty Avenue Pittsburgh , PA Jeff Zell

15222-4500 Phone: (412) 288-9995


FAX: (412) 288-9930

Jeffrey A. Parker & Associates, Inc. Main 1308 Spruce Street Philadelphia , PA

(005919) 19107 Phone: (215) 501-7761


FAX: (877) 575-2501

Jeffrey L. Williams DBA Williams Inspection Service Main 1545 Troy Hawkrun Hwy Philipsburg , PA

(006354) 16866-7967 Phone: (814) 342-0281


FAX: (814) 342-0281

Jenason Enterprises LLC Main 9661 Ginny Lane North East , PA

(002957) 16428 Phone: (814) 725-3684


FAX: (814) 725-0324

Jerry K. Snyder, P.E. d.b.a. Snyder Environmental Engineering Associates Main 3044 Appledale Road Audubon , PA

(007624) 19403-1702 Phone: (610) 631-5241


FAX: (610) 631-5241

JH Technical Services, Inc. Main 200 Hightower Blvd. Pittsburgh , PA

(000678) 15205 Phone: (412) 788-1174 x18


FAX: (412) 788-1179

Jim McGill Heating and Plumbing t/a Mr. Rooter Main 6th street Kelayres , PA

(005740) 18231 Phone: (570) 929-1444


FAX: (570) 773-1985

JJDS Environmental, Inc. Main 40 Woodview Dr. Doylestown , PA

(002147) 18901-2922 Phone: (267) 880-2325


FAX: (267) 880-2326

JMS Visual Communications, Inc. Main 1666 Route 206 Vincentown , NJ

(000377) 08088 Phone: (609) 859-8400 x310


FAX: (609) 859-8006

Joe Hunt & Associates, Inc. (DBA JHA Companies) Main 359 Main Street New Milford , PA

(007592) 18834 Phone: (570) 465-4600


FAX: (570) 465-4601

Joel Katz Design Associates Main 1616 Walnut Street Philadelphia , PA

(000408) 19104 Phone: (215) 985-4747


FAX: (215) 985-4748

John A. Coukart D/B/A J. A. Coukart & Associates Main 122 Front Street New Berlin , PA

(001567) 17855-0300 Phone: (570) 966-2860


FAX: (570) 966-6215

John C. Martin Associates, LLC dba Martin Associates Main 941 Wheatland Ave Lancaster , PA

(005675) 17603 Phone: (717) 295-2428


FAX: (717) 295-7089

John Chance Land Surveys, Inc. Main 100 Plaza Drive Atlasburg , PA

(008149) 15004 Phone: (337) 706-3904


FAX: (337) 237-1300

John Chenger DBA Bat Conservation and Management Main 220 Old Stone House Road North Carlisle , PA

(000388) 17015 Phone: (717) 241-2228


FAX: (717) 241-2228

John F Kresge d/b/a J F Kresge Electrical Services Main 1755 Newton Ransom Blvd Clarks Summit , PA

(005981) 18411-9677 Phone: (570) 881-4821


FAX: (570) 586-3479

John J. Clark & Associates Main 16 Niagara Road Pittsburgh , PA

(000366) 15221 Phone: (412) 361-3200


FAX: (412) 894-8735

John L. Shambaugh d/b/a FPE Consulting Engineers Main 100 S. Baltimore Street Dillsburg , PA

(005021) 17019 Phone: (717) 432-2719


FAX: (717) 432-5368

John Milner Associates, Inc. Main 535 North Church Street West Chester , PA

(000180) 19380-2397 Phone: (610) 436-9000


FAX: (610) 436-8468

John Morgan Thomas Landscape Architects P.C. Main 4 South Union Street Lambertville , NJ

(004945) 08530 Phone: (609) 397-9070


FAX: (609) 397-9631

John Poole d/b/a Constructonomics Main 32 Craig Court Newtown , PA

(005606) 18940 Phone: (215) 834-5155


John R. Bowie dba John Bowie Associates Main 101 East Possum Hollow Road Wallingford , PA

(007492) 19086 Phone: (610) 565-1268


Johnson, Mirmiran & Thompson, Inc. Main 220 St. Charles Way York , PA

(000119) 17402 Phone: (717) 741-1600


FAX: (717) 741-9100

JMT - Allentown 5100 Tilghman Street Allentown , PA Gerald Fry, PE

18104 Phone: (610) 366-1191


FAX: (610) 465-9478

JMT - Philadelphia 1600 Market Street Philadelphia , PA Herman Lloyd

19103 Phone: (267) 256-0300


FAX: (267) 256-0395

JMT - Pittsburgh 1550 Coraopolis Heights Road Moon Township , PA Lisa Cooper, P.E.

15108 Phone: (412) 375-5100


FAX: (412) 375-5110

Johnstown Environmental Management Corporation (JEMCOR) Main 68 Walnut Street Johnstown , PA

(004832) 15901-1529 Phone: (814) 533-2680


FAX: (814) 533-2691

Jones Lang LaSalle Americas, Inc. Main 200 East Randolph Drive Chicago , IL

(007940) 60601 Phone: (202) 719-5588


FAX: (202) 719-5001

Joseph J. Wilson d/b/a Wilson Ecological Consulting Main 515 Henderson Road Julian , PA

(004427) 16844-8123 Phone: (814) 933-2488


FAX: (888) 241-4072

Joseph J. Wilson dba Wilson Ecological Consulting, LLC Main 314 Hill Top Lane Port Matilda , PA

(007832) 16870-8831 Phone: (814) 933-2488


FAX: (888) 241-4072

JPC LOGISTICS LIMITED LIABILITY COMPANY DBA JPCL ENGINEERING LLC Main 853 NOTTINGHAM WAY HAMILTON TOWNSHIP , NJ

(006258) 08638 Phone: (609) 890-4343


FAX: (609) 890-4949

Judith E. Fagin d/b/a Judith E. Fagin, PMP Main 253 Niagara Point Drive Erie , PA

(005082) 16507-2321 Phone: (814) 528-8589


FAX: (208) 567-0184

Judy L. Tyrrell d/b/a Tyrrell Estimating Service Main 240 New Elizabeth Street Wilkes Barre , PA

(005603) 18702-2108 Phone: (570) 763-2941


FAX: (570) 606-3762

Julia L. Johnson d/b/a Wordsworth Communications Main 1982 Stanley Road Cazenovia , NY

(002091) 13035 Phone: (315) 815-5007


FAX: (315) 815-5007

Juniata Woolen Mill, Inc. Main 1738 PRICE STREET JOHNSTOWN , PA

(003970) 15902-3406 Phone: (814) 266-2270


FAX: (814) 266-2270

Justine Woodard McKnight, Ethnobotanist Main 708 Faircastle Avenue Severna Park , MD

(000715) 21146 Phone: (410) 507-3582


FAX: (410) 729-5782

K Bealer Consulting, Inc. Main 420 Fort Duquesne Boulevard, Suite 1875 Pittsburgh , PA

(008244) 15222 Phone: (412) 325-1414


FAX: (412) 325-1416

K Bealer Consulting, Inc. 700 West Pete Rose Way, Suite 529 Cincinnati , OH Allen Mullens

45203 Phone: (513) 294-0055


K. M. Mankad, P.E. & Associates Main 1109 Ladner Avenue Gibbstown , NJ

(000162) 08027-1627 Phone: (856) 423-7337


FAX: (856) 423-7337

K. Robert Cunningham Surveyors, Inc. Main 10139 Route 6 Wellsboro , PA

(007990) 16901 Phone: (570) 724-3395


FAX: (570) 724-3396

K&W Safety Construction Consulting, Inc. Main 1109 Green Street Philadelphia , PA

(004155) 19123-3326 Phone: (215) 765-3015


FAX: (215) 765-3015

KAG Engineering, Inc. Main 2704 Brownsville Road Pittsburgh , PA

(006949) 15227 Phone: (412) 885-8888


FAX: (412) 885-5146

Kairos Design Group, LLC Main 4 Lemoyne Drive Lemoyne , PA

(003050) 17043 Phone: (717) 920-5900


FAX: (717) 920-5902

KAKS & Company, LLC Main 38 E. Blaine Street lansdale , PA

(005112) 19446 Phone: (215) 375-7050


FAX: (215) 368-2444

KAPPA Mapping, Inc. Main 6 State Street, Suite 301 Bangor , ME

(003702) 04401 Phone: (207) 942-5200


FAX: (207) 942-5201

Karen Brean dba Karen Brean Associates Main 700 River Avenue Pittsburgh , PA

(000282) 15212 Phone: (412) 354-2655


Kathleen L. Fair d\b\a Fair's Services Main 55 McMinn Rd. Sharpsville , PA

(001361) 16150 Phone: (724) 962-8733


FAX: (724) 962-5575

Kaufman Engineering, Inc. Main 19 Washington Street Carbondale , PA

(001817) 18407 Phone: (570) 281-0731


FAX: (570) 281-0746

KB Environmental Sciences, Inc. Main 9500 Koger Boulevard, Suite 211 St. Petersburg , FL

(007287) 33702 Phone: (727) 578-5152


FAX: (727) 578-5210

KBA Engineering, P.C. Main 25 South Washington Avenue Jermyn , PA

(000084) 18433 Phone: (570) 876-5744 x204


FAX: (570) 876-4299

KCF Groundwater, Inc. Main 4916 Woodbox Lane Mechanicsburg , PA

(006012) 17055 Phone: (717) 691-8025


FAX: (717) 691-8028

KCI Technologies, Inc. Main 936 Ridgebrook Road Sparks , MD

(000011) 21152-9390 Phone: (717) 691-1340


FAX: (717) 691-3470

Harrisburg 5001 Louise Drive Mechanicsburg , PA Eric L. Martz

17055 Phone: (717) 691-1340


FAX: (717) 691-3470

Pittsburgh 400 Penn Center Boulevard Pittsburgh , PA M. Patrick Kane

15235 Phone: (412) 824-7046 x201


FAX: (412) 824-4685

KDS Engineers LLC Main 302 Suffolk Rd Flourtown , PA

(007600) 19031 Phone: (215) 868-2395


Center Valley 3477 Corporate Parkway Center Valley , PA Adrian Kollias

18034 Phone: (215) 868-2395


FAX: (215) 635-6587

Keller Consulting Engineers,Inc. Main 49 E. CenterStreet Nazareth , PA

(000135) 18064 Phone: (610) 759-9700


FAX: (610) 759-9206

Keller Engineers, Inc. Main PO Box 61 Hollidaysburg , PA

(000142) 16648-0061 Phone: (814) 696-7430


FAX: (814) 696-0150

State College Office 3500 East College Avenue State College , PA Michael A. Pratt

16801 Phone: (814) 231-2925


FAX: (814) 231-2926

Kelli Artis d/b/a Kelly Virtual Services Main 172 W. Baltimore Ave Lansdowne , PA

(006670) 19050 Phone: (800) 896-2801


FAX: (855) 516-7277

Kelly & Close Consulting Engineers & Surveyors, Inc. Main 1786 Wilmington Pike Glen Mills , PA

(003823) 19342 Phone: (610) 358-9363 x213


FAX: (610) 358-9376

Kelly L. Humbert d/b/a W.T.E. Main 625 York Road York Haven , PA

(004268) 17370 Phone: (717) 938-2186


FAX: (717) 932-5729

Kenneth H. Mohr, Jr., d/b/a Mohr Management Resources Main 116 South Main Street Coopersburg , PA

(006004) 18036-1913 Phone: (610) 282-1921


FAX: (610) 282-1738

Keville Enterprises, Inc. Main 475 School Street Marshfield , MA

(002290) 02050 Phone: (781) 837-3884


FAX: (781) 837-4091

Keville Enterprises, Inc. 630 Freedom Business Center King of Prussia , PA Steve Rymal

19406 Phone: (610) 768-7733


FAX: (610) 768-7734

Key Learning Consultants, Inc. Main 939 Wellington St. York , PA

(006487) 17403 Phone: (717) 848-3434


FAX: (717) 848-3434

Keystone Acquisition Services, Corporation Main 3200 McKnight East Drive Pittsburgh , PA

(002632) 15237 Phone: (412) 364-8612


FAX: (412) 364-8613

Montgomeryville 418 Stump Road Montgomeryville , PA Debra Jones

18936-0000 Phone: (267) 838-9600


Pittston 126 South Main Street Pittston , PA Anne Bradbury

18640 Phone: (570) 299-5130


Keystone Aerial Surveys, Inc. Main 9800 Ashton Rd Philadelphia , PA

(007404) 19114 Phone: (215) 677-3119


FAX: (215) 464-2889

Keystone Associates, Architects, Engineers and Surveyors, LLC Main 58 Exchange Street Binghamton , NY

(006791) 13901 Phone: (607) 722-1100


FAX: (607) 722-2515

Keystone Consultants, Inc. Main 32 East Main Street Carnegie , PA

(003471) 15241 Phone: (412) 278-2100


FAX: (412) 278-2126

Keystone Consulting Engineers, Inc. Main 2870 Emrick Boulevard Bethlehem , PA

(001975) 18020 Phone: (610) 395-0971 x000


FAX: (610) 391-8942

Kresgeville Office 865 Interchange Road Kresgeville , PA Eric Snyder

18333 Phone: (610) 681-5233


FAX: (610) 681-5248

Wescosville Office 6235 Hamilton Blvd. Suite 100 Wescosville , PA Dean Haas

18106 Phone: (610) 395-0971


FAX: (610) 391-8942

Keystone Material Testing, LLC Main 58 Exchange Street Binghamton , NY

(006361) 13901 Phone: (607) 723-5117


FAX: (607) 722-2515

Keystone Safety Services, Inc., d.b.a. Land Logics Group Main 25 South 34th Street Camp Hill , PA

(003906) 17011 Phone: (717) 730-0127


FAX: (717) 730-4055

Keystone Valuation Group, L.P. Main 1000 Commerce Drive Moon Township , PA

(004723) 15108 Phone: (412) 299-0229


FAX: (412) 299-6462

Kilareski & Tarris, P.C. Main R1, Box 328-C Port Matilda , PA

(000137) 16870 Phone: (814) 234-5878


FAX: (814) 234-1010

Harrisburg 2908 Ionoff Road Harrisburg , PA Joseph P. Tarris, P.E., P.T.O.E.

17110 Phone: (717) 545-7828


FAX: (717) 545-7676

State College Suite 202 State College , PA Walter P. Kilareski

16801 Phone: (814) 234-5878


FAX: (814) 234-1010

Kiley Associates LLC Main 536 Purdytown Turnpike Lakeville , PA

(005087) 18438 Phone: (570) 226-5810


FAX: (570) 226-5811

Kim Banister d/b/a Banister-Heishman Main 103 Bucher Hill Boiling Springs , PA

(001198) 17007 Phone: (717) 258-8638


Kimley-Horn and Associates, Inc. Main 3001 Weston Parkway Cary , NC

(001945) 27513-2301 Phone: (919) 677-2000


FAX: (919) 677-2050

Corporate Headquarters 3001 Weston Parkway Cary , NC Mindy S. Zeni

27513-2301 Phone: (919) 678-4121


FAX: (919) 677-2000

New York 30 Broad Street, 40th Floor New York , NY Steve Levine

10004-2304 Phone: (646) 839-4553


FAX: (212) 964-4290

Northern Virginia 11400 Commerce Park Reston , VA Tammy Jencen

20191-1558 Phone: (703) 674-1300


FAX: (703) 674-1350

Philadelphia 2 Penn Center Plaza, Suite 200 Philadelphia , PA Anush Nejad

19102-1754 Phone: (215) 854-6396


Phoenix 7740 N. 16th Street Phoenix , AZ Lisa Burgess

85020-4467 Phone: (602) 906-1359


FAX: (601) 944-7423

Pleasanton 6130 Stoneridge Mall Road Pleasanton , CA Brian Sowers

94588-3287 Phone: (925) 398-4840


FAX: (925) 398-4849

Virginia Beach 4500 Main Street Virginia Beach , VA Karen McPherson

23462-3050 Phone: (757) 213-8600


FAX: (757) 213-8601

Kimmel Bogrette Architecture + Site, Inc. Main 151 E. 10th Avenue Conshohocken , PA

(005770) 19428 Phone: (610) 834-7805


FAX: (610) 834-7815

Kirit R. Desai, P.E.,P.C.Inc Main Kirit R Desai, P.E,PC.Inc Hopatcong , NJ

(004072) 07843-1710 Phone: (917) 365-6314


FAX: (917) 546-6679

Kirit R Desai, PE,PC Kirit R Desai PE PC Little Neck , NY Kirit Desai, PE

11362-0000 Phone: (917) 546-9258


FAX: (917) 546-6679

Kittatinny Archaeological Research, Inc. Main P.O. Box 1117 Stroudsburg , PA

(000267) 18360 Phone: (570) 421-9525


FAX: (570) 421-9527

Kittelson & Associates, Inc. Main 36 S. Charles Street Baltimore , MD

(000287) 21201 Phone: (410) 347-9610


FAX: (410) 347-9611

Anchorage 880 H Street Anchorage , AK Gary Katsion

99501 Phone: (907) 646-7995


Baltimore 36 S. Charles Street Baltimore , MD Edward J. Myers

21201 Phone: (410) 347-9610


FAX: (410) 347-9611

Bend 354 SW Upper Terrace Dr Bend , OR Joe Bessman

97702 Phone: (541) 312-8300


Boise 101 S. Capitol Blvd. Boise , ID Sonia Hennum

83702 Phone: (208) 338-2683


FAX: (208) 338-2685

Fort Lauderdale 110 E. Broward Blvd. Fort Lauderdale , FL Jessica Josselyn

33301 Phone: (954) 828-1730


FAX: (945) 828-1787

Oakland 155 Grand Avenue, Suite 900 Oakland , CA Alice Chen, AICP.

94612 Phone: (510) 839-1742


FAX: (510) 839-0871

Orlando 225 E. Robinson Street Orlando , FL Justin Bansen

32801 Phone: (407) 540-0555


Portland 610 SW Alder Street Portland , OR Brian Ray

97205 Phone: (503) 228-5230


FAX: (503) 273-8169

Reston 1850 Centennial Park Drive Reston , VA Brandon Nevers

20191 Phone: (703) 885-8970


Sacramento 428 J Street, Suite 500 Sacramento , CA Jim Damkowitch.

95814 Phone: (916) 266-2190


FAX: (916) 266-2195

Tucson 33 N. Stone Ave. Tucson , AZ Jason Simmers

85701 Phone: (520) 544-4067


FAX: (520) 544-9616

Klapec Trucking Company Main 1643 Allegheny Blvd Reno , PA

(005184) 16343 Phone: (814) 676-1512


FAX: (814) 676-8854

Klavon Design Associates, Inc. Main 48 S 15th Street Pittsburgh , PA

(000454) 15203 Phone: (412) 394-1181 x25


FAX: (412) 394-1182

KLD Associates, Inc. Main 43 Corporate Drive Hauppauge , NY

(002380) 11788-2021 Phone: (631) 617-5650 x210


FAX: (631) 617-5649

KLD Engineering, P.C. Main 43 Corporate Drive Hauppauge , NY

(008033) 11788-2021 Phone: (631) 617-5650 x206


FAX: (631) 617-5649

Klein and Hoffman, Inc. Main 1818 Market Street Philadelphia , PA

(000276) 19103-3638 Phone: (215) 563-7787 x3083


FAX: (215) 564-5667

Chicago 150 South Wacker Drive, Suite 1900 Chicago , IL William Kosinski

60606-4201 Phone: (312) 251-1900 x1938


FAX: (312) 251-1970

New York 111 Broadway, 21st Floor New York , NY Charles Yuen, P.E.

10006-1901 Phone: (212) 962-3503


FAX: (212) 608-5290

Philadelphia 1818 Market Street, Suite 3500 Philadelphia , PA Somsook Sethbhakdi, P.E.

19103-3636 Phone: (215) 563-7787 x3083


FAX: (215) 564-5667

Kleinfelder East, inc. Main 180 Sheree Blvd., Suite 3800 Exton , PA

(005966) 19341 Phone: (610) 594-1444


FAX: (610) 594-2743

Augusta, ME 151 Capitol Street, Suite 2 Augusta , ME Mary A Crawford

04330 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Cambridge, MA 215 First Street, Suite 320 Cambridge , MA Mary A Crawford

02142 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Charlotte, NC 6200 Harris Technology Blvd. Charlotte , NC Mary A Crawford

28269-3732 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Cranberry Township, PA 260 Executive Drive, Suite 500 Cranberry Township , PA Mary A Crawford

16066 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Framingham, MA 1 Speen Street, Suite 200 Framingham , MA Mary A Crawford

01701 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Manchester, NH 2 Wall Street, Suite 450 Manchester , NH Mary A Crawford

03101 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Mount Dora, FL 1174 Camp Avenue Mount Dora , FL Mary A Crawford

32757 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Newburgh, NY 1279 Route 300, Second Floor Newburgh , NY Mary A Crawford

12550 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Rocky Hill, CT 200 Corporate Place Rocky Hill , CT Mary A Crawford

06067 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Sayre, PA 703 South Elmer Avenue, Suite 104 Sayre , PA Mary A Crawford

18840 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

Springfield, MA 1145 Main Street, Suite 208 Springfield , MA Mary A Crawford

01103 Phone: (609) 584-5271 x362


FAX: (609) 584-7498

KLH Engineers, Inc. Main 5173 Campbells Run Road Pittsburgh , PA

(005975) 15205 Phone: (412) 494-0510 x151


FAX: (412) 494-0426

McKeesport Office 500 5th Avenue McKeesport , PA Steve Greenberg

15132 Phone: (412) 494-0510 x107


FAX: (412) 494-0426

KLK Welding, inc. Main 15 Barnhart Drive Hanover , PA

(006079) 17331-9589 Phone: (717) 637-0080


FAX: (717) 637-0026

KMA Consulting Engineers, Inc. Main 1010 Berlin Road Cherry Hill , NJ

(004557) 08034 Phone: (856) 428-3600


FAX: (856) 428-3606

KMJ Consulting, Inc. Main 120 E. Lancaster Ave. Ardmore , PA

(001197) 19003-3209 Phone: (610) 896-1996


FAX: (610) 672-9690

KMS Design Group, LLC Main PO Box 694 Phoenixville , PA

(005852) 19460-0694 Phone: (610) 726-1324


FAX: (610) 906-1162

Knights Engineering Inc. Main 4998 Mechanicsville Road Mechanicsville , PA

(004164) 18934 Phone: (215) 794-5958


FAX: (215) 794-8230

Knoebel, Picarelli, Inc./DBA KPI Technology Main 143 Carlisle Street Gettysburg , PA

(004915) 17325 Phone: (717) 339-0612


FAX: (717) 339-0717

Dillsburg One East Harrisburg St. Dillsburg , PA Michael R. Begis

17019 Phone: (717) 502-0884


FAX: (717) 502-0945

Elysburg 310 S. Market St. Elysburg , PA Michael R. Begis

17824 Phone: (570) 672-2505


Kolodner2 LLC Main 1500 Walnut St Philadelphia , PA

(005905) 19102 Phone: (215) 839-9165


KPMG LLP Main 345 Park Avenue New York , NY

(005881) 10159 Phone: (202) 499-0780


KRA Corporation Main 1010 Wayne Avenue Silver Spring , MD

(000325) 20910-5600 Phone: (301) 562-2300


FAX: (301) 495-3172

Krech Ojard & Associates, P.A. Main 227 West First Street Duluth , MN

(003218) 55802 Phone: (218) 727-3282


FAX: (218) 727-1216

KRF, LLC Main 5003 Schuyler Street Philadelphia , PA

(005798) 19144 Phone: (215) 688-2784


FAX: (215) 991-9099

KS Associates, Inc. Main 260 Burns Road Elyria , OH

(006546) 44035 Phone: (440) 365-4730 x310


FAX: (440) 365-4790

KS Engineers, P.C. Main 35 South 3rd Street Philadelphia , PA

(003200) 19106 Phone: (215) 925-0425


FAX: (215) 925-0430

Newark Corp Office 494 Broad Street Newak , NJ Kamal Sahid

07102 Phone: (973) 623-2999


FAX: (973) 623-2988

Philadelphia, Pennsylvania 35 South 3rd Street Philadelphia , PA David J. Hassinger

19106 Phone: (215) 925-0425 x35


FAX: (215) 925-0430

KSK Architects Planners Historians, Inc. Main 123 S. Broad Street Philadelphia , PA

(000223) 19109-1029 Phone: (215) 790-1050 x110


FAX: (215) 790-0215

Kise Straw & Kolodner Inc. 7150 N. Park Drive, Suite 550 Pennsauken , NJ LaVern Browne

08109 Phone: (856) 661-9611


FAX: (856) 661-9736

KSS Architects LLP Main 337 Witherspoon St Princeton , NJ

(006006) 08542 Phone: (609) 921-1131 x1053


FAX: (609) 921-9414

KTA-Tator, Inc. Main 115 Technology Drive Pittsburgh , PA

(000047) 15275-1085 Phone: (412) 788-1300 x105


FAX: (412) 788-1306

New York 217-31 54th Avenue Bayside , NY Ricky Chan, P.E.

11364-1414 Phone: (718) 224-4567


FAX: (718) 224-5846

KTH Architects, Inc. Main 1741 Kiwanis Trail DuBois , PA

(007436) 15801 Phone: (814) 371-1541


FAX: (814) 371-8801

KU Resources, Inc. Main 22 South Linden Street Duquesne , PA

(003254) 15110 Phone: (412) 469-9331


FAX: (412) 469-9336

Kucera International Inc. Main 38133 Western Parkway Willoughby, OH 44094 , OH

(001437) 44094-7589 Phone: (440) 975-4230


FAX: (440) 975-4238

Keddal Aerial Mapping 1121 Boyce Road Suite 3100 Pittsburgh , PA Pete Quigley

15241-3955 Phone: (724) 942-2881


FAX: (724) 942-2885

Kumi Construction Management Corporation Main 3408 Wisconsin Ave. NW Washington , DC

(005963) 20016-3035 Phone: (202) 684-8858 x3011


FAX: (202) 362-3736

Kurowski & Wilson, LLC Main 470 Friendship Road Harrisburg , PA

(005465) 17111 Phone: (717) 635-2835


FAX: (717) 635-2836

K2 Consulting Services, LLC Main 701 Good Hope Road Mechanicsburg , PA

(005125) 17050 Phone: (717) 433-4784


K2 Engineering, Inc. Main 160 Pittsburgh Street Suite 3A Uniontown , PA

(003873) 15401 Phone: (724) 439-3440


FAX: (724) 439-3144

L. D. Astorino & Associates, LTD d/b/a Astorino Main 227 Fort Pitt Boulevard Pittsburgh , PA

(005138) 15222 Phone: (412) 765-1700


FAX: (412) 765-1711

L. Robert Kimball & Associates, Inc. Main 615 W. Highland Avenue Ebensburg , PA

(000086) 15931 Phone: (814) 472-7700 x1305


FAX: (814) 472-7712

Coraopolis, PA 415 Moon Clinton Road Coraopolis , PA Tammy Sherwin

15108 Phone: (412) 262-5400 x4253


FAX: (412) 262-3036

Harrisburg, PA 4400 Deer Path Road Harrisburg , PA David Beachy, PE

17110 Phone: (717) 221-8820 x6224


FAX: (717) 221-8860

Philadelphia Two Commerce Square Philadelphia , PA Allan A. Stock

19103 Phone: (215) 665-0308 x6251


FAX: (215) 665-0121

Pittsburgh, PA Frick Building North Messanine Pittsburgh , PA M. Patrick Kane, PE

15219 Phone: (412) 201-4900 x2299


FAX: (412) 201-2338

State College, PA 328 Innovation Boulevard State College , PA Ronald L. Deck

16803 Phone: (814) 867-4566 x3240


FAX: (814) 867-4572

L&V Engineering, LLC Main PO Box 347 Honesdale , PA

(004328) 18431 Phone: (888) 902-3651


FAX: (888) 902-3857

LaBella Associates, P.C. Main 300 State Street Rochester , NY

(000755) 14614-1020 Phone: (585) 454-6110


FAX: (585) 454-3066

Coudersport, PA 227 North Main Street Coudersport , PA James Matzat, PE

16915 Phone: (814) 274-5037


FAX: (814) 274-5039

Hornell, NY 20 Seneca Street Hornell , NY James Argentieri

14843 Phone: (607) 324-0222


FAX: (607) 324-7655

Ithaca, NY 114 North Cayuga Street Ithaca , NY Dan Walker

14850 Phone: (607) 319-4136


FAX: (607) 319-4153

Lachel & Associates, Inc. Main 1054 Technology Park Drive Glen Allen , VA

(003968) 23059 Phone: (804) 264-3322


FAX: (804) 265-3244

LACHEL FELICE & Associates Wexford 201 Forest Edge Court Wexford , PA Gordon M. Elliott

15090 Phone: (724) 382-1440


FAX: (724) 382-1447

Lakeside Engineers, LLC. Main 16745 West Bluemound Road Brookfield , WI

(007343) 53005-5938 Phone: (262) 789-8200


FAX: (262) 789-8207

Lami Grubb Architects LP Main 100 East Swissvale Ave Pittsburgh , PA

(005558) 15218-1439 Phone: (412) 243-3430


FAX: (412) 371-1586

Lammey & Giorgio, P.A. Main 215 Highland Avenue Haddon Township , NJ

(006232) 08108 Phone: (856) 833-0010


FAX: (856) 833-0470

Lanco Electric Inc. Main 300 Canal Street Leechburg , PA

(003362) 15656 Phone: (724) 845-8146 x38


FAX: (724) 845-8147

Land & Mapping Services Main 300 North Second Street Clearfield , PA

(000270) 16830 Phone: (814) 765-9370


FAX: (814) 765-9372

Land & Mapping Services / Clearfield Office 300 North Second Street Clearfield , PA Jeffrey P. Gilmore

16830 Phone: (814) 765-9370


FAX: (814) 765-9372

Land & Mapping Services / Ebensburg 117 South Center Street Ebensburg , PA Chris Dumm

15834 Phone: (814) 472-5596


FAX: (814) 472-5606

Land & Mapping Services / Emporium 22448 CCC Memorial Highway Emporium , PA James E. Pahel

15834 Phone: (814) 486-3684


FAX: (814) 486-3684

Land & Mapping Services / Kersey (Forestry) 742 Shelvey Summit Kersey , PA Bob Anderson

15846 Phone: (814) 765-9370


FAX: (814) 765-9372

Land & Mapping Services / Titusville 643 West Spring Street Titusville , PA Kevin Jenkins

16354 Phone: (814) 765-9370


FAX: (814) 765-9372

LANDERS Design Group Main 1698 Whitehall Road Norristown , PA

(000361) 19403-4803 Phone: (610) 584-9495


FAX: (610) 584-8815

Landesberg Design, Inc. Main 1219 Bingham Street Pittsburgh , PA

(004447) 15203-1121 Phone: (412) 381-2220


FAX: (412) 381-2413

Landesberg Design Brooklyn 177 Water Street, 1st Floor Brooklyn , NY Matt Lee

11201 Phone: (718) 360-5936

LandStudies, Inc. Main 315 North Street Lititz , PA

(004886) 17543 Phone: (717) 627-4440


FAX: (717) 627-4660

Langan Engineering & Environmental Services Main 30 South 17th Street Philadelphia , PA

(003653) 19103 Phone: (215) 864-0640


FAX: (215) 864-0671

Langan-EP River Drive Center 1 Elmwood Park , NJ Elizabeth Emery

07407 Phone: (215) 864-0640 x2849


FAX: (215) 864-0671

LaPorta and Associates, L.L.C. d/b/a LPA Geoarchaeological Consultants, L.L.C. Main 5 First Street #73 Warwick , NY

(000283) 10990 Phone: (845) 986-7733


FAX: (845) 988-9988

Main Office/Mailing Address 5 First Street #73 Warwick , NY Dr. Margaret C. Brewer-LaPorta, Ph.D.

10990 Phone: (845) 986-7733


FAX: (845) 988-9988

Lardner/Klein Landscape Architects, P.C. Main 815 N Royal, Suite 200 Alexandria , VA

(005991) 22314 Phone: (703) 739-0972


Larry D. Rugg d/b/a Fairmont Trucking Main 240 Faimont Road Mill Run , PA

(005055) 15464-1314 Phone: (724) 455-3993


Larson Design Group, Inc. Main 1000 Commerce Park Drive Williamsport , PA

(000007) 17701 Phone: (570) 323-6603


FAX: (570) 323-9902

Bethel 9533 Old 22 Bethel , PA David Siminitis, C.S.E.O., C.W.S.

19507 Phone: (717) 933-5530


FAX: (717) 933-9130

Bloomsburg 24 West Main Street Bloomsburg , PA Justin O. Keister, P.E.

17815 Phone: (570) 387-6680


FAX: (570) 387-8050

Corning, NY 34 Denison Parkway West Corning , NY Gregory M. Cummings, P.E.

14830 Phone: (607) 936-7076


FAX: (607) 936-7086

Cranberry Township 8050 Rowan Road Cranberry Township , PA Robert Tellish, E.I.T.

16066 Phone: (724) 591-8562


FAX: (570) 323-9902

Lititz 201 East Oregon Road Lititz , PA Stephen S. Muller

17543 Phone: (717) 824-4618


FAX: (717) 945-7574

Selinsgrove 1780 Route 522 Selinsgrove , PA Justin O. Keister, P.E.

17870 Phone: (570) 374-5700


FAX: (570) 374-5703

Lavery, Faherty, Young & Patterson, P.C. Main 225 Market Street Harrisburg , PA

(003234) 17101-2126 Phone: (717) 233-6633 x17


FAX: (717) 233-7003

LAW Engineering and Environmental Services, Inc. Main One Summit Square Langhorne , PA

(000440) 19047 Phone: (215) 860-1963 x105


FAX: (215) 860-5360

Lawhon & Associates, Inc. Main 975 Eastwind Drive Suite 190 Westerville , OH

(003972) 43081 Phone: (614) 818-5200


FAX: (614) 818-5219

Lawler, Matusky & Skelly Engineers LLP Main One Blue Hill Plaza Pearl River , NY

(001811) 10965 Phone: (845) 735-8300


FAX: (845) 735-7466

Laws, Staruch & Pisarcik Main 20 Erford Rd Lemoyne , PA

(004272) 17043 Phone: (717) 975-0600


FAX: (717) 975-3871

Lazaro & Noel LLC Main 136 Berkey Drive Johnstown , PA

(008255) 15904 Phone: (814) 262-7535


LBK Construction Management, LLC Main 320 Belleville Ave Bloomfield , NJ

(004175) 07003 Phone: (973) 748-3517


FAX: (973) 748-6664

Lea+Elliott, Inc. Main 14325 Willard Road Chantilly , VA

(004018) 20151-2110 Phone: (703) 968-7883


FAX: (703) 968-7888

Lea+Elliott Inc 5200 Blue Lagoon Drive Miami , FL Barbara McFaul

33126 Phone: (305) 500-9390

Lea+Elliott, Inc 2505 N State Highway 360 Grand Prairie , TX Donna Gaut

75050 Phone: (972) 890-9800

Lea+Elliott, Inc. 785 Market Street San Francisco , CA Jennifer Berger

94101 Phone: (415) 908-6450

Lee-Simpson Associates, Inc. Main P.O. Box 504 DuBois , PA

(000197) 15801-0504 Phone: (814) 371-7750


FAX: (814) 371-8864

Leggette, Brashears & Graham, Inc. Main 426 Brandywine Parkway West Chester , PA

(004920) 19380 Phone: (610) 430-7764


FAX: (610) 430-7965

Legion Design/Campbell & Associates, P.C. Main 1315 Walnut Street Philadelphia , PA

(001731) 19107 Phone: (215) 875-9660


FAX: (215) 875-9661

Lehigh Engineering Associates, Inc. Main 453 Main Street, P.O. Box 68 Walnutport , PA

(000326) 18088 Phone: (610) 767-8545


FAX: (610) 767-5798

Lehigh Engineering, LLC Main 200 Mahantongo Street Pottsville , PA

(005887) 17901 Phone: (570) 628-2300 x3305


FAX: (570) 622-2612

Lehigh University Main 526 Brodhead Avenue, 23B Bethlehem , PA

(000308) 18015-3046 Phone: (610) 758-3021


FAX: (610) 758-5902

Lennon, Smith, Souleret Engineering, Inc. Main 846 Fourth Avenue Coraopolis , PA

(004763) 15108-1522 Phone: (412) 264-4400 x219


FAX: (412) 264-1200

Leverson Boodlal d/b/a KLS Engineering Main 21525 Ridgetop Circle, Suite 140 Sterling , VA

(004838) 20166 Phone: (703) 444-7686 x11


FAX: (703) 444-7688

Levine Engineering, LLC Main P.O. Box 429 Altoona , PA

(007182) 16603-0429 Phone: (814) 946-4859


FAX: (814) 942-1175

Lewis & Zimmerman Associates, Inc. Main 6110 Executive Boulevard, Suite 512 Rockville , MD

(000041) 20852-3903 Phone: (301) 984-9590


FAX: (301) 984-1369

Lewis Engineering & Design Inc Main 433 Arbor Drive Mars , PA

(005593) 16046 Phone: (724) 612-4994


FAX: (724) 772-6002

LFR Inc. (an ARCADIS company) Main 500 North Gulph Road King of Prussia , PA

(005028) 19406-2816 Phone: (610) 337-7601


FAX: (610) 337-7609

Braintree, MA 194 Forbes Road Braintree , MA Nicole Lent/Alex Rothchild

02184 Phone: (781) 356-7300


FAX: (781) 356-2211

Branchburg, NJ 35 Columbia Road Branchburg , NJ Steven Caretsky

08876 Phone: (908) 526-1000


FAX: (908) 526-7886

Lawrence, MA 60 Island Street Lawrence , MA Mark Zambernardi

01840 Phone: (978) 659-0017


FAX: (978) 659-0069

Newtown, PA - Penns Trail 6 Penns Trail Newtown , PA Katherine Eyre

18940 Phone: (215) 968-2594


FAX: (215) 968-3143

Newtown, PA - Terry Road 6 Terry Road Newtown , PA Katherine Eyre

18940 Phone: (267) 685-1800


FAX: (267) 685-1801

Pittsburgh, PA 600 Waterfront Drive Pittsburgh , PA Rob Anderson

15222 Phone: (412) 231-6624


FAX: (412) 231-6147

Warwick, RI 300 Metro Center Boulevard Warwick , RI Thomas Daley

02886 Phone: (401) 738-3887


FAX: (401) 732-1686

LGA Engineering, Inc. Main 750 Vassar Avenue Lakewood , NJ

(003266) 08701 Phone: (732) 961-2162


FAX: (732) 961-2163

Liberty Environmental, Inc. Main 50 N. 5th St. Reading , PA

(003289) 19601 Phone: (610) 375-9301 x212


FAX: (610) 375-9302

Liberty Tire Recycling Holdco. LLC Main 1251 Waterfront Place Pittsburgh , PA

(007088) 15222 Phone: (412) 562-1700


FAX: (412) 562-0248

Lichtenstein Consulting Engineers, Inc. Main One Oxford Valley Langhorne , PA

(000076) 19047 Phone: (215) 752-2206


FAX: (215) 752-1539

Lieb Inspection & Testing, Inc. Main 407 Burmont Road Drexel Hill , PA

(005953) 19026 Phone: (610) 626-8176


FAX: (610) 626-4666

LifeSpan Technologies, Inc. Main 3931 Ashford Trail Atlanta , GA

(004667) 30319 Phone: (770) 234-9494


FAX: (770) 234-9493

Light-Heigel & Associates Inc Main 430 E Main St Palmyra , PA

(004887) 17078-1844 Phone: (717) 838-1351


FAX: (717) 838-3820

Linda Kennedy Espenshade d/b/a Kennedy CRM Main 325 Edgewood Avenue Trafford , PA

(002854) 15085-1116 Phone: (412) 380-0105


FAX: (412) 380-0106

Lippincott Engineering Associates Main One Pavilion Avenue Riverside , NJ

(000344) 08075-0354 Phone: (856) 461-1100 x204


FAX: (856) 461-3166

LiRo Engineers, Inc. Main 3 Aerial Way Syosset , NY

(003404) 11791 Phone: (516) 938-5476 x146


FAX: (516) 938-4368

Buffalo 690 Delaware Avenue Buffalo , NY Robert Kreuzer

14209 Phone: (716) 882-5476


FAX: (716) 882-9640

California 3435 Wilshire Blvd. Los Angeles , CA James Sohn

90010 Phone: (510) 910-1265

Manhattan 111 Broadway New York , NY Luis Tormenta

10006 Phone: (212) 563-0280


FAX: (212) 563-1841

Scranton 538 Spruce Street, Suite 506 Scranton , PA Gerard Caplin

18503 Phone: (570) 961-7713


FAX: (570) 961-7712

Syosset 3 Aerial Way Syosset , NY Michael Bailey

11791 Phone: (516) 938-5476


FAX: (516) 938-4368

Lisa Griffith d/b/a LCG Consulting Main 504 Humphries Road Safety Harbor , FL

(005793) 34695 Phone: (727) 744-5560


Lisa J Sparnon d/b/a Sparnon Wetland Services Main 106 Rock Court Dingmans Ferry , PA

(000005) 18328 Phone: (570) 686-9999


FAX: (570) 686-9898

LJB Inc. Main 3100 Research Boulevard Dayton , OH

(007131) 45420-0246 Phone: (937) 259-5000


FAX: (937) 259-5100

LKG-CMC, Inc. Main Three Gateway Center Pittsburgh , PA

(003263) 15222-1004 Phone: (818) 844-0800


FAX: (818) 844-0806

Locating Logistics,LLC Main 1510 Cecil B. Moore Ave Ste.301 Philadelphia , PA

(006349) 19121-3411 Phone: (877) 594-3257


FAX: (215) 207-9098

Locating Utility Infrastructure Services, LLC Main 1510 Cecil B. Moore Ave. Ste.301 Philadelphia , PA

(007619) 19121 Phone: (215) 207-8964


FAX: (215) 207-9098

Lockheed Martin Transportation Systems Main 12999 Deer Creek Canyon Rd. Littleton , CO

(000296) 80127-5146 Phone: (303) 977-7499


FAX: (303) 971-4093

Lockwood Greene Main Lockwood Greene Wexford , PA

(000274) 15090-8364 Phone: (724) 935-6020 x220


FAX: (724) 935-9620

Loftus Engineers LLC Main 555 North Bell Avenue Carnegie , PA

(006477) 15106-4310 Phone: (412) 489-9100


FAX: (412) 429-6474

Logistical Transporation Co. Inc. Main P.O. Box 40001 Jacksonville , FL

(001507) 32203 Phone: (904) 764-3219


FAX: (904) 766-2446

Lone Tree Archaeology and Environmental, Inc. Main 98 1/2 Dennison Street Swoyersville , PA

(003808) 18704 Phone: (570) 287-3797


FAX: (570) 287-0118

Long Span Bridge & Culvert Main 3 N. Court STreet frederick , MD

(002965) 21701 Phone: (240) 379-7750


FAX: (240) 379-7752

Lotus Environmental Consulting, LLC Main 524 Pugh Road Wayne , PA

(005246) 19087 Phone: (610) 605-3104 x701


FAX: (610) 605-3104

Louis Berger & Associates, Inc. Main 120 Halsted Street East Orange , NJ

(000154) 07018 Phone: (973) 678-1960 x763


FAX: (973) 678-3427

Loysen + Kreuthmeier Architects, Inc. Main 5115 Penn Avenue Pittsburgh , PA

(006224) 15224 Phone: (412) 924-0006


FAX: (412) 924-0007

LRSLA Studio, Inc. Main 230 S. Broad Street Philadelphia , PA

(004043) 19102-4107 Phone: (215) 790-0727 x101


FAX: (215) 790-0949

LS Engineering Associates Corporation Main 150 River Road Montville , NJ

(004304) 07045 Phone: (215) 282-1138


FAX: (215) 568-4455

LSC DESIGN, INC. Main 1110 EAST PRINCESS STREET YORK , PA

(002308) 17403 Phone: (717) 845-8383


FAX: (717) 852-0916

LTK Consulting Services, Inc. Main 100 West Butler Avenue Ambler , PA

(005523) 19002 Phone: (215) 542-0700


FAX: (215) 542-7676

LTL Consultants, LTD Main P.O Box 241 Oley , PA

(004143) 19547 Phone: (610) 987-9290


FAX: (610) 987-9288

Ludgate Engineering Corporation Main 10 Vanguard Drive Reading , PA

(003618) 19606 Phone: (610) 404-7330


FAX: (610) 404-7371

Lumber Heritage Region of Pennsylvania, Inc. Main 20 E. Fifth St. Emporium , PA

(002835) 15834 Phone: (814) 486-0213


FAX: (814) 486-0215

M and S Engineering Services Inc Main 1581 Bristol Pike Bensalem , PA

(003131) 19020-5762 Phone: (215) 633-8337


FAX: (215) 633-8214

M. A. Beech Corporation Main 801 West Main Street Carnegie , PA

(000099) 15106 Phone: (412) 276-7199


FAX: (412) 276-9379

M. A. Culbertson, L.L.C. Main P.O. Box 45 Haddonfield , NJ

(000175) 08033 Phone: (856) 795-8485


FAX: (856) 795-8523

M.G. McLaren, P.C. Main 100 Snake Hill Road West Nyack , NY

(001970) 10994 Phone: (845) 353-6400 x354


FAX: (845) 353-6509

M.J. Engineering and Land Surveying, P.C. Main 1533 Crescent Road Clifton Park , NY

(003538) 12065 Phone: (518) 371-0799


FAX: (518) 371-0822

Long Island City 40-11 24th Street Long Island City , NY Michael Panichelle

11101 Phone: (518) 371-0799


FAX: (518) 371-0822

Melville 555 Broad Hollow Road Melville , NY Michael Panichelli

11747 Phone: (518) 371-0799


FAX: (518) 371-0822

Watertown 23746 Rt. 342 Watertown , NY Michael Panichelli

13601 Phone: (518) 371-0799


FAX: (518) 371-0822

M.J. McTish and Associates, Inc. d/b/a McTish, Kunkel & Associates Main 3500 Winchester Road Allentown , PA

(000056) 18104 Phone: (610) 841-2700


FAX: (610) 841-2709

McTish Kunkel and Associates 1500 Sycamore Road, Suite 320 Montoursville , PA John P. Ryan

17754 Phone: (570) 368-3040


FAX: (570) 368-3166

McTish, Kunkel & Associates 400 Penn Center Blvd., Suite 600 Pittsburgh , PA John J. Porter

15235 Phone: (412) 824-2910


FAX: (412) 824-3050

M&J Engineering, PC Main One Cross Island Plaza, Suite #313 Rosedale , NY

(005132) 11422 Phone: (718) 525-5500 x23


FAX: (718) 228-8411

Albany 722 Riverview Terace Albany , NY Bruce Thurston

12148 Phone: (518) 399-6565


FAX: (718) 228-8411

Long Island 52 South Terace Place Valley Stream , NY Maqsood Malik, P.E.

11580 Phone: (917) 335-2021


FAX: (718) 228-8411

New Jersey 753 Closter Dock Road Closter , NJ Albert Pozotrigo, P.E.

07624 Phone: (201) 750-2758


FAX: (718) 228-8411

Pennsylvania 145 Jamesway Seven Field , PA Daniel McLoughlin, P.E.

16046 Phone: (724) 772-2091


FAX: (718) 228-8411

Poughkeepsie 495 Freedomplain Road Poughkeepsie , NY M. Athar Amin, P.E.

12603 Phone: (845) 483-7000


FAX: (718) 228-8411

M&N Engineering and Diving Services, Inc. Main 2105 Laurel Bush Road Bel Air , MD

(002156) 21015 Phone: (443) 484-2394


FAX: (443) 484-2398

Ma'At Construction Group, LLC Main Lexington Technology Park Pittsburgh , PA

(005725) 15208 Phone: (412) 371-3689 x45


FAX: (412) 371-0792

MAAR Associates, Inc. Main P. O. Box 655 Newark , DE

(000228) 19715-0655 Phone: (302) 996-0713


FAX: (302) 999-1687

Mabey, Inc. Main 6770 Dorsey Road Elkirdge , MD

(002446) 21075 Phone: (412) 475-6087


FAX: (866) 574-0250

Philadelphia 6770 Dorsey Rd Elkridge , MD Gerard Dillon

21075 Phone: (443) 621-3614


FAX: (410) 379-5318

Pittsburgh Depot 600 Industry Way Heidelberg , PA Kathy Stalter

15106 Phone: (412) 279-6610


FAX: (412) 279-6656

MAC Design Group, INC. Main 5721 Jownstown Road Harrisburg , PA

(005997) 17112 Phone: (717) 514-8188


FAX: (717) 651-1283

Mackin Engineering Company Main R.I.D.C. Park West Pittsburgh , PA

(000003) 15275-1015 Phone: (412) 788-0472 x216


FAX: (412) 787-3588

New Cumberland 175 Limekiln Road New Cumberland , PA Jeffrey R Raykos

17070 Phone: (717) 774-8900


FAX: (717) 774-5445

Macon Pace, Inc. Main 2115 Hamilton Ave., Suite 203 Hamilton , NJ

(004430) 08619 Phone: (609) 587-8669


FAX: (609) 587-8670

Macon Pace, Inc. New York Office 2 Penn Plaza, Suite 1500 New York City , NY Colleen Hickey

10121 Phone: (212) 292-4924


FAX: (212) 244-3100

Macon Pace, Inc. Virginia Office 11 South 12th Street Richmond , VA Jennifer Antonellis

23218 Phone: (866) 722-2551


MACTEC Engineering and Consulting, Inc. Main 1105 Lakewood Parkway Alpharetta , GA

(002419) 30004 Phone: (610) 941-9700


FAX: (610) 941-9707

Ashburn, Virginia 21740 Beaumeade Circle Asburn , VA Rao R. Angara

20147 Phone: (703) 729-1416


FAX: (703) 858-1858

Beltsville, Maryland 12104 Indian Creek Court Beltsville , MD Gregory J. Williams

20705 Phone: (301) 210-5105


FAX: (301) 210-5032

Jacksonville, Florida 3901 Carmichael Avenue Jacksonville, , FL James A. Horton, PE

32207 Phone: (904) 396-5173


FAX: (904) 396-5703

MACTEC - Pittsburgh Carnegie Office Park Pittsburgh , PA Pat Pontoriero

15106 Phone: (412) 279-6661


FAX: (412) 279-8567

MACTEC - Plymouth Meeting 5205 Militia Hill Road Plymouth Meeting , PA Mr. Douglas Newton, PG

19462 Phone: (610) 941-9700


FAX: (610) 941-9707

MACTEC Corporate Headquarters Alphretta, GA 1105 Lakewood Parkway Alpharetta , GA Bruce Cavan, PG Director of Projects

30004 Phone: (770) 360-0634


FAX: (770) 360-0651

Orlando, Florida 4150 North John Young Parkway Orlando , FL Rene J. Schneider

32801-2620 Phone: (407) 253-5479


FAX: (407) 522-7576

St Louis, Missouri 3199 Riverport Tech Center Drive St. Louis , MO Virginia L. Hayes, National Transportation Business Lin

63043 Phone: (314) 209-5900


FAX: (314) 209-5929

MadgeTech, Inc Main 201 Route 103 West Warner , NH

(004699) 03278 Phone: (603) 456-2011


FAX: (603) 456-2012

MAGLEV, Inc Main 1905 Technology Center McKeesport , PA

(005525) 15132 Phone: (412) 948-1905 x6020


FAX: (412) 948-1051

Mahaffey Lab. LTD. Main 551 State Street Curwensville , PA

(001097) 16833 Phone: (814) 236-1113


FAX: (814) 236-1952

Maier Consulting Services LLC Main 170 Old Schoolhouse Lane Mechanicsburg , PA

(005776) 17055 Phone: (484) 356-7655


Mainstay Engineering Group, Inc. Main 110 West Butler Avenue Ambler , PA

(005202) 19002-5703 Phone: (215) 646-5595 x115


FAX: (215) 646-5568

Malarkey Consulting, Inc. Main 1429 Shaner Drive Pottstown , PA

(008283) 19465-7825 Phone: (610) 405-9423


FAX: (610) 326-0530

Malcolm Pirnie, Inc. Main 104 Corporate Park Dr. White Plains , NY

(001776) 10602-0751 Phone: (484) 688-0369


FAX: (610) 768-5817

King of Prussia 640 Freedom Business Center King of Prussia , PA Gregory M. Firely

19406 Phone: (484) 688-0369


FAX: (610) 768-5817

Philadelphia 111 South Independence Mall East Philadelphia , PA John Luxford

19106 Phone: (215) 931-4351


FAX: (215) 625-0172

Pittsburgh 1603 Carmody Court, 4th Floor Sewickley , PA Thomas Hartwig, P.E., D.E.E.

15143-8860 Phone: (724) 934-4387


FAX: (724) 934-4332

Malick & Scherer, P.C. Main Perryville III Corporate Center Hampton , NJ

(003785) 08827 Phone: (908) 537-1300


FAX: (908) 537-1398

Mallik Engineering, Inc. Main 722 Collins Ave Lansdale , PA

(001726) 19446-5649 Phone: (215) 699-8303


FAX: (215) 699-8303

Management and Environmental Technologies, Inc. Main 3801 Market Street, Suite 200 Philadelphia , PA

(007844) 19104-3153 Phone: (215) 546-7991 x1705


FAX: (215) 871-0837

Management Engineering Corporation Main P.O. Box 12575 Pittsburgh , PA

(003597) 15241 Phone: (412) 563-2111


FAX: (412) 257-3202

Manley Consultants, Inc. Main 415 Ellis Woods Road Pottstown , PA

(005722) 19465 Phone: (610) 718-0554


FAX: (610) 718-0594

Marcia V. Wilkof DBA mvwGroup Main 1521 Naudain Street Philadelphia , PA

(006028) 19146-1626 Phone: (215) 731-9821


Margaret K. Qualters D/B/A Q M Consulting Main 10 Allegheny Center Pittsburgh , PA

(003684) 15212 Phone: (412) 321-6835


FAX: (412) 321-6840

Margaret Sams Consulting Main 383 Bower Hill Road Venetia , PA

(004496) 15367 Phone: (724) 941-0382


Margaret Sams D/B/A Margaret Sams Consulting Main 383 Bower Hill Road Venetia , PA

(003584) 15367 Phone: (724) 941-0382


Marianna M. Thomas D/B/A Marianna Thomas Architects Main 3961 Baltimore Avenue Philadelphia , PA

(004066) 19104 Phone: (215) 386-0200 x10


FAX: (215) 386-7052

Marine Solutions, Inc Main 225 Industry Parkway Nicholasville , KY

(004737) 40356 Phone: (859) 260-1055


FAX: (859) 554-4100

Baltimore 3100 Falls Cliff Road Baltimore , MD Jeremy Pope

21211 Phone: (410) 864-8700


FAX: (410) 779-9477

Mark D. Jones d/b/a Hartech Engineering & Consulting Main 1020 W Foxcroft Drive Camp Hill , PA

(004835) 17011 Phone: (717) 919-0385


FAX: (717) 828-1018

Mark J. Corey & Associates Main 5845 Jordan Road Erie , PA

(004412) 16510-4631 Phone: (814) 898-3821


FAX: (814) 898-3821

Mark Resolve, Inc. Main 27 S. Main Street Medford , NJ

(006368) 08055 Phone: (609) 257-3310


FAX: (609) 257-3329

Colorado 8031 Southpark Circle Littleton , CO Tom Caruso

80210 Phone: (303) 339-6651

New Jersey 27 S. Main Street Medford , NJ Mark Giannecchini

08055-2413 Phone: (609) 257-3310


Mark Ulrick Engineers, Inc. Main 2204 Walnut Street Philadelphia , PA

(003706) 19103 Phone: (215) 561-3340


FAX: (215) 561-3347

Marla Rozyckie dba The Design House Main 1548 Inverness Drive Mechanicsburg , PA

(008081) 17050-8328 Phone: (717) 730-0138


FAX: (717) 730-0138

Marteeny Landscape Inc. Main 3894 Coxes Creek Rd. Somerset , PA

(005139) 15501 Phone: (814) 444-9600


FAX: (814) 444-9700

Martin Bean Renovation & Associates Inc. Main 6066 Vine Street Philadelphia , PA

(007194) 19139 Phone: (215) 476-5006


FAX: (215) 476-5028

Martin J. Eustace, III, P.E. t/a Eustace Engineering Main 447 West Moreland Road Willow Grove , PA

(002186) 19090 Phone: (215) 346-8757


FAX: (215) 346-8759

Martinez Corporation Main 2910 Waters Road Eagan , MN

(003104) 55121 Phone: (651) 686-8424


FAX: (651) 686-8389

Mary Bogart d/b/a Bogart Engineering Main P.O. Box 190 Moscow , PA

(000303) 18444 Phone: (570) 848-2360


FAX: (570) 848-2361

Mary Fitzgerald d/b/a Fitzgerald Engineering Main 127 SECOND STREET BOWMANSDALE , PA

(001319) 17008 Phone: (717) 766-0865


FAX: (717) 766-2280

Mary Means & Associates, Inc. Main 108 S. Fayette Street Alexandria , VA

(000492) 22314 Phone: (703) 684-2215


FAX: (703) 684-2216

Mary Means & Associates, Inc. 108 S. Fayette St. Alexandria , VA Mary Means

22314 Phone: (703) 684-2215

Mary W. Treisbach dba Mary W. Treisbach Main 390 RITTENHOUSE BLVD. NORRISTOWN , PA

(007266) 19403-3375 Phone: (610) 635-0525


Maser Consulting P.A. Main 331 Newman Springs Road Red Bank , NJ

(004193) 07701-5688 Phone: (732) 383-1950 x3374


FAX: (732) 383-1984

Bethlehem 55 West Lehigh Street Bethlehem , PA Janis L. Doran

18020 Phone: (732) 383-1950 x3327


FAX: (732) 383-1984

Mason Dixon Energy, Inc. Main 101 Cambridge Place Bridgeport , WV

(004054) 26330 Phone: (304) 842-9550 x143


FAX: (304) 842-9552

Master Locators, Inc. Main 2426 E. Helms Manor Boothwyn , PA

(007516) 19061 Phone: (610) 358-0172


MATCO Associates, Inc. Main 4640 Campbells Run Road Pittsburgh , PA

(003571) 15205 Phone: (412) 788-1263 x18


FAX: (412) 788-1283

Material Technologies, Inc. Main 10880 Wilshire Blvd. Los Angeles , CA

(003585) 90024 Phone: (310) 208-5589


FAX: (310) 473-3177

Materials Conservation Co., LLC Main 1625 N. Howard Street Philadelphia , PA

(006900) 19122 Phone: (215) 763-8090


FAX: (215) 763-8098

Materials Testing Inc. Main 5702 Route 873 Po Box 218 Neffs , PA

(003628) 18056 Phone: (610) 767-3006


FAX: (610) 767-3008

Matrix New World Engineering, Inc. Main 120 Eagle Rock Avenue East Hanover , NJ

(003562) 07936 Phone: (973) 240-1800


FAX: (973) 240-1818

Mavickar Environmental Consultants, Inc. Main 1240 North Mountain Road Harrisburg , PA

(000096) 17112-1754 Phone: (717) 540-9925


FAX: (717) 540-9926

Maxx IV Corporation Main 621 Greenmont St. Greensburg , PA

(005148) 15601 Phone: (724) 575-1285


Maynes Associates Architects, LLC Main 438 S. Main St. 3rd floor Pittsburgh , PA

(004451) 15220 Phone: (412) 488-8890


FAX: (412) 488-8892

MB Environmental Consulting, Inc Main 13362 Irving St Alden , NY

(006145) 14004 Phone: (716) 902-4253


FAX: (716) 902-4254

MBO Engineering, LLC Main 102 Andrews Drive Bordentown , NJ

(007332) 08505 Phone: (609) 610-0278


McCamley Hydrogeology, LLC Main 4373 Annandale Drive Schwenksville , PA

(005242) 19473-2082 Phone: (610) 584-2747


FAX: (610) 584-2765

McCarthy Engineering Associates, P.C. Main 1121 Snyder Road West Lawn , PA

(003659) 19609 Phone: (610) 373-8001


FAX: (610) 373-8077

McClain and Co., Inc. Main 19152 Germanna Highway Culpeper , VA

(000850) 22701 Phone: (540) 423-1110


FAX: (540) 423-1066

McCloskey & Faber, P.C. Main 831 Dekalb Pike Blue Bell , PA

(006140) 19422-1215 Phone: (610) 277-9200 x103


FAX: (610) 277-9203

McCollom Management Consulting, Inc. Main 13508 Straw Bale Lane Darnestown , MD

(007280) 20878-3969 Phone: (301) 258-0810


FAX: (301) 258-0826

McCormick Taylor, Inc. Main Two Commerce Square Philadelphia , PA

(000053) 19103 Phone: (215) 592-4200


FAX: (215) 592-9754

Baltimore 509 South Exeter Street, 4th Floor Baltimore , MD Baltimore

21202 Phone: (410) 662-7400

FAX: (410) 662-7401

Columbus 445 Hutchinson Ave. Columbus , OH Carlos Escalante

43235 Phone: (614) 436-1700

FAX: (614) 436-1704

Great Valley The Commons at Great Valley Malvern , PA Great Valley

19355 Phone: (610) 640-3500

FAX: (610) 640-3505

Harrisburg Gateway Corporate Center Harrisburg , PA Harrisburg

17112 Phone: (717) 540-6040

FAX: (717) 540-6049

Mt. Laurel 700 East Gate Drive, Suite 201 Mt. Laurel , NJ Mt. Laurel

08054 Phone: (856) 793-0800

FAX: (856) 793-0819

Newark 200 Continental Drive, Suite 305 Newark , DE Newark

19713 Phone: (302) 738-0203

FAX: (302) 738-0275

Pittsburgh Seven Parkway Center, Suite 700 Pittsburgh , PA Pittsburgh

15220 Phone: (412) 922-6880

FAX: (412) 922-6851

Richmond North Shore Commons A Glen Allen , VA Richmond

23060 Phone: (804) 762-5800

FAX: (804) 762-5803

State College Innovation Park at Penn State State College , PA State College

16803 Phone: (814) 861-4948

FAX: (814) 861-2550

McCutcheon Enterprises Inc Main 250 Park Road Apollo , PA

(003275) 15613-8730 Phone: (724) 568-3623 x134


FAX: (724) 568-2571

McDonough Bolyard Peck, Inc. Main 100 Berwyn Park, Suite 210 Berwyn , PA

(006360) 19312 Phone: (703) 641-9088


FAX: (703) 641-8965

McFarland-Johnson, Inc. Main 25 South Washington Avenue Jermyn , PA

(000039) 18433-1121 Phone: (570) 876-1560


Binghamton, NY 49 Court Street, Metrocenter Binghamton , NY James M. Festa

13902-1980 Phone: (607) 723-9421 x227


FAX: (607) 723-4979

Canandaigua, NY 2525 SR 332 Canandaigua , NY Marshall Hardy

14424 Phone: (585) 905-0970 x343


FAX: (585) 905-0882

Concord, NH 53 Regional Drive Concord , NH Mike Long

03301-8500 Phone: (603) 225-2978


FAX: (603) 225-0095

Saratoga Springs, NY 60 Railroad Place Saratoga Springs , NY Jim Festa

12866 Phone: (518) 580-9380


FAX: (518) 580-9383

McGoey, Hauser, and Edsall, Consulting Engineers, P.C. Main 111 Wheatfield Drive, Suite 1 Milford , PA

(000352) 18337 Phone: (570) 296-2765


FAX: (570) 296-2767

McKee & Associates, Inc. Main 5 Shawan Road Cockeysville , MD

(005528) 21030 Phone: (410) 527-1555


FAX: (410) 527-1563

McKim & Creed, Inc. Main 1730 Varsity Drive Raleigh , NC

(006990) 27606 Phone: (919) 233-8091


FAX: (919) 233-8031

Raleigh 1730 Varsity Dr. Raleigh , NC Tim Van Gelder, PLS

27606 Phone: (919) 233-8091

Tampa 3802 Ehrlich Rd. Tampa , FL Jason Waldemer, RLS

33624 Phone: (813) 549-3740

Wilmington 243 North Front Street Wilmington , NC Marty Stoughton, PLS

28401 Phone: (910) 343-1048

McLane & Shoener Inc. Main 601 Stafford Ave. Scranton , PA

(000923) 18505 Phone: (570) 341-3668


FAX: (570) 341-5413

McLaren Technical Services, Inc. d/b/a McLaren Engineering Group Main 100 Snake Hill Road West Nyack , NY

(008139) 10994-1628 Phone: (845) 353-6400


FAX: (845) 353-6509

McMahon Associates, Inc. Main 425 Commerce Drive Fort Washington , PA

(000118) 19034-2716 Phone: (215) 283-9444


FAX: (215) 283-9445

Camp Hill 3903 Hartzdale Drive Camp HIll , PA Casey A. Moore, P.E.

17011 Phone: (717) 975-0295


FAX: (717) 975-0294

Exton, Chester County 840 Springdale Drive Exton , PA Christopher J. Williams, P.E.

19341 Phone: (610) 594-9995


FAX: (610) 594-9565

Lehigh Valley Office 840 Hamilton Street Allentown , PA Christopher Williams

18101 Phone: (610) 628-2994


FAX: (610) 628-3755

Pittsburgh 651 Holiday Drive Pittsburgh , PA Casey Moore

15220 Phone: (412) 928-2056


FAX: (412) 928-4951

McMillen Engineering, Inc. Main 115 Wayland Smith Drive Uniontown , PA

(002689) 15401 Phone: (724) 439-8110 x111


FAX: (724) 439-4733

Mead and Hunt, Inc. Main 6501 Watts Road Madison , WI

(007581) 53719-1361 Phone: (608) 273-6380


FAX: (608) 273-6391

Lansing 2605 Port Lansing Road Lansing , MI Mark Breukink

48906-2116 Phone: (517) 321-8334


MEC Construction LLC Main PO Box 440 Bridgeport , WV

(005533) 26330 Phone: (304) 592-5175


FAX: (304) 592-5249

Mecdog Consultants Main 115 Valley Avenue Centre Hall , PA

(000261) 16828 Phone: (814) 364-0865


Medina Consultants, P.C. Main One Edgeview Drive Hackettstown , NJ

(002938) 07840 Phone: (908) 850-3366 x135


FAX: (908) 850-3326

Baltimore, MD 1501 St. Paul Street, Suite 126 Baltimore , MD Wassim Nader, P.E.

21202 Phone: (443) 955-7900


FAX: (443) 955-7901

Bethlehem, PA 83 South Commerce Way, Suite 350 Bethlehem , PA Andrew Andreeko, P.E.

18017 Phone: (610) 954-9060 x505


FAX: (610) 954-9061

Hamilton, NJ 3379 Quakerbridge Road, Suite 200 Hamilton , NJ James Lester, P.E.

08619 Phone: (609) 838-6425 x206


FAX: (609) 838-6422

Hartford, CT 6 Central Row, 4th Floor Hartford , CT Chandu Bhoraniya, P.E.

06103 Phone: (860) 761-1090


FAX: (860) 761-1228

New York, NY 110 William Street, 12th Floor New York , NY Gene Lempicki

10038 Phone: (212) 228-0662 x601


FAX: (212) 228-3341

Newark, NJ 550 Broad Street, 11th Floor Newark , NJ Edwin A. Reimon, P.E.

07102 Phone: (973) 286-2891 x301


FAX: (973) 286-2892

Medveczky Associates, Ltd. Main 102 Shoen Road Exton , PA

(002355) 19341 Phone: (610) 363-0830


FAX: (610) 524-0682

Harrisburg 441 Friendship Road Harrisburg , PA Kerry Leberknight

17111 Phone: (717) 773-1604


Meliora Environmental Design, LLC Main 100 North Bank Street Phoenixville , PA

(005865) 19460 Phone: (610) 933-0123


FAX: (610) 933-0188

Melissa L. McCloskey d/b/a Environmental Geo-Services Main 140 Cranberry Road Sandy Lake , PA

(004154) 16145 Phone: (724) 253-3904 x23


FAX: (724) 253-4246

Melius & Hockenberry Environmental Services, Inc. Main 2402 William Penn Avenue Johnstown , PA

(001767) 15909-1201 Phone: (814) 322-4822


FAX: (814) 322-3722

Menke & Menke LLC Main 6 Ogden Avenue Swarthmore , PA

(000258) 19081-1213 Phone: (610) 328-6948 x10


Mercator Advisors LLC Main 1629 Locust St. Philadelphia , PA

(005938) 19103 Phone: (215) 546-6801


Meridian Associates Inc Main 500 Cummings Center Beverly , MA

(007774) 01915-0500 Phone: (978) 299-0447


FAX: (978) 299-0567

MESH Consulting, LLC Main 3245 Ridge Pike Norristown , PA

(004743) 19403 Phone: (215) 290-9530


FAX: (866) 846-3791

Metcalf and Eddy, Inc. Main Four Gateway Center, Fifth Floor Pittsburgh , PA

(000928) 15222-1416 Phone: (412) 880-5302


FAX: (412) 395-8897

Metric Engineering, Inc. Main 13940 SW 136 Street Miami , FL

(005738) 33186 Phone: (305) 235-5098 x156


FAX: (305) 235-5271

MHF Logistical Solutions, Inc. Main 800 Cranberry Woods Drive Suite 450 Cranberry Twp , PA

(002758) 16066 Phone: (724) 772-9800 x5529


FAX: (724) 772-9840

Michael Baker Jr., Inc. Main 100 Airside Drive Moon Township , PA

(000095) 15108 Phone: (412) 269-6334


FAX: (412) 375-3985

Beaver, Pennsylvania 4301 Dutch Ridge Road Beaver , PA William D. Trimbath, P.E.

15009 Phone: (724) 495-4302


FAX: (724) 495-4002

Harrisburg, Pennsylvania 4431 North Front Street Harrisburg , PA Steven L. Barber

17110 Phone: (717) 221-2000


FAX: (717) 234-7618

Horsham, Pennsylvania 201 Gibraltar Road, Suite 120 Horsham , PA Eric D. Frary, P.E.

19044 Phone: (215) 444-5312


FAX: (215) 444-0889

Moon Township, Pennsylvania 100 Airside Drive Moon Township , PA Jeffrey J. Campbell, P.E.

15108 Phone: (412) 269-7948


FAX: (412) 375-3998

Philadelphia, Pennsylvania 1818 Market Street, Suite 3110 Philadelphia , PA Mark D. Alisesky, P.E.

19103 Phone: (215) 568-0539


FAX: (215) 568-1349

Pittsburgh, Pennsylvania Centre City Tower, Suite 2010 Pittsburgh , PA William D. Trimbath, P.E.

15222 Phone: (412) 391-2755


FAX: (412) 391-2751

Michael Benza & Associates, Inc. Main 6860 West Snowville Road Brecksville , OH

(005084) 44141 Phone: (440) 526-4206


FAX: (440) 546-2691

Michael E. Matsko d/b/a Transys Services Co. Main 203 East Park Avenue Snow Shoe , PA

(001793) 16874-8629 Phone: (814) 387-4404


FAX: (814) 387-4404

Michael J. Pasonick, Jr., Inc Main 165 North Wilkes-Barre Boulevard Wilkes-Barre , PA

(000189) 18702 Phone: (570) 823-4712


FAX: (570) 823-4727

Michael Kaye D/B/A Blue Metals Main 18 North State Street Newtown , PA

(003109) 18940-2027 Phone: (215) 860-2345


FAX: (215) 860-2530

Michael L. Norris & Associates, Inc. Main 270 Walker Drive State College , PA

(000327) 16801 Phone: (814) 867-3823


FAX: (814) 867-4823

Michelle Robinson d/b/a Michelle Robinson Architects Main 416 Pennsylvania Ave Mt. Gretna , PA

(004874) 17064 Phone: (267) 767-9644


FAX: (717) 964-1327

Michelle Robinson Design 1123 S. 51st St Philadelphia , PA Michelle Robinson

19143 Phone: (267) 767-9644


Mid Atlantic Land Surveyors LLC Main 201 Jay Street I 114 Stowe , PA

(007450) 19464 Phone: (610) 327-9818


FAX: (610) 970-0169

Mid-Atlantic Environmental Laboratories, Inc. Main 100 Naamans Road Claymont , DE

(003132) 19703 Phone: (302) 798-4055


FAX: (302) 798-4085

Mid-Penn Engineering Corp Main 2049 W. Market Street Lewisburg , PA

(001863) 17837 Phone: (570) 524-2214


FAX: (570) 524-0109

Midlantic Engineering, Inc. Main 120 Commerce Road Pittston Township , PA

(000196) 18640-9552 Phone: (570) 655-2200


FAX: (570) 655-2212

Mifflinburg Buggy Museum Association, Inc. Main 598 Green Street Mifflinburg , PA

(007112) 17844-1240 Phone: (570) 966-1355


FAX: (570) 966-9231

Milnes Engineering, Inc. Main Milnes Engineering, Inc. Tunkhannock, PA , PA

(000132) 18657 Phone: (570) 836-2145


FAX: (570) 836-6510

Milone & MacBroom, Inc. Main 37 Fairfax Lane Annville , PA

(006380) 17003 Phone: (717) 810-6728


Mindteck, Inc. Main 1828 Good Hope Road, Suite 201 Enola , PA

(005771) 17025 Phone: (717) 732-2211


FAX: (717) 732-2927

Mining Ventilation Products, Inc. Main 176 Gacek Rd. Greensboro, , PA

(001640) 15338 Phone: (724) 324-5236


FAX: (724) 324-9236

Mistras Group Inc Main 401 N. Main St. Manchester , PA

(008148) 17345 Phone: (717) 266-9670


FAX: (717) 266-9669

Mitra & Associates, Inc. Main 8107 Germantown Avenue Philadelphia , PA

(003273) 19118 Phone: (267) 243-0556


FAX: (215) 242-4298

Mizerak Towers and Associates, Inc. Main 118 Marlin Drive West Pittsburgh , PA

(000093) 15216-1408 Phone: (412) 343-7460


FAX: (412) 343-7465

MKSD, LLC Main 1209 Hausman Road, Suite A Allentown , PA

(002933) 18104 Phone: (610) 366-2081


FAX: (610) 366-8399

Modjeski and Masters, Inc. Main 100 Sterling Parkway Mechanicsburg , PA

(000014) 17050 Phone: (717) 790-9565


FAX: (717) 790-9564

Philadelphia Office 1341 North Delaware Avenue Philadelphia , PA Richard A. Martino, P.E.

19125 Phone: (215) 609-1990


FAX: (215) 609-1991

Modular Gabion Systems Main 2221 Canada Dry Street Houston , TX

(003402) 77023 Phone: (713) 924-4371


FAX: (713) 924-4381

Moffatt & Nichol Main 2700 Lighthouse Point East, Ste. 501 Baltimore , MD

(002889) 21224 Phone: (410) 563-7300


FAX: (410) 563-4330

Momentum Inc. Main 2142 Market Street Camp Hill , PA

(002795) 17011 Phone: (717) 214-8000 x19


FAX: (717) 214-8004

Monaloh Basin Engineers Main Campbells Run Business Center Pittsburgh , PA

(000008) 15205 Phone: (412) 788-2433 x305


FAX: (412) 494-0603

Monroe Township Main 17956 Route 68 Sligo , PA

(003008) 16255 Phone: (814) 745-2819


FAX: (814) 745-3182

Montgomery Watson Harza Americas Inc. Main 335 Phoenixville Pike Malvern , PA

(001357) 19355 Phone: (610) 993-0800


FAX: (610) 993-0251

Moo-Young Inc. d/b/a MYI Main 7955 Cross Creek Circle Breinigsville , PA

(002105) 18031 Phone: (240) 426-0924


FAX: (610) 336-4346

Moonstone Environmental LLC Main 1150 Glenlivet Drive, Suite C31 Allentown , PA

(006122) 18106 Phone: (484) 664-7171


Morelta Inc. Main 355 Fifth Avenue - Suite 400 Pittsburgh , PA

(005996) 15222 Phone: (877) 554-4547 x101


FAX: (469) 533-1985

Morris Knowles & Associates, Inc. Main 443 Athena Drive Delmont , PA

(001392) 15626-1257 Phone: (724) 468-4622


FAX: (724) 468-8940

Moshier Studio Main 201 South Highland Avenue Pittsburgh , PA

(004830) 15026 Phone: (412) 361-5302


FAX: (412) 361-7302

Motley Associates, Inc. Main 505 East Lancaster Avenue Shillington , PA

(004691) 19607 Phone: (610) 775-0888


FAX: (610) 775-9847

Mountain Consulting, Inc. Main 79 Ryhill Drive Dover , DE

(003306) 19904 Phone: (302) 744-9875


FAX: (302) 744-9945

MOUNTAIN RESEARCH, INC. Main 825 25TH STREET ALTOONA , PA

(000354) 16601 Phone: (814) 949-2034


FAX: (814) 949-9591

BROCKWAY ANALYTICAL 110 MCCRACKEN RUN ROAD DUBOIS , PA DENISE FORADORI

15801 Phone: (814) 371-6030


FAX: (814) 375-0823

Mountain Research, LLC Main 825 25th Street Altoona , PA

(001794) 16601 Phone: (814) 949-2034


FAX: (814) 949-9591

MS Consultants, Inc. Main 333 Rouser Road Coraopolis , PA

(000226) 15108-2773 Phone: (412) 264-8701


FAX: (412) 264-2076

Akron, OH United 1 Commerce Center Akron , OH David Hartman

44308 Phone: (330) 258-9920


FAX: (330) 258-9921

Charleston, WV 206 Capitol Street Charleston , WV Muhammad U. Riaz, P.E.

25301 Phone: (304) 346-1211


FAX: (304) 346-1213

Cleveland, OH 9217 Midwest Avenue Cleveland , OH Denis T. Yurkovich, P.E.

44125 Phone: (216) 581-4036


FAX: (216) 475-9655

Columbus, OH 2221 Schrock Road Columbus , OH Thomas E. Mosure, P.E.

43229 Phone: (614) 898-7100


FAX: (614) 898-7570

Garner, NC 70 East Business Park Garner , NC J. Daniel Marlowe, P.E.

27529 Phone: (919) 772-5565


FAX: (919) 779-2308

Indianapolis, IN 8900 Keystone Crossing Indianapolis , IN Michael D. Kratofil, P.E.

46240 Phone: (317) 566-0050


FAX: (317) 566-0052

Mechanicsburg, PA 1215 Manor Drive Mechanicsburg , PA William J. Wilson, P.E.

17055 Phone: (717) 697-2373

FAX: (717) 697-3919

Pittsburgh 333 Rouser Road Coraopolis , PA Karl R. Nejak

15108 Phone: (412) 264-8701


FAX: (412) 264-2076

Youngstown, OH 333 East Federal Street Youngstown , OH David J. Mosure, P.E.

44503 Phone: (330) 774-5321


FAX: (330) 774-5256

MSGeo Corp Main 560 Ozem Gardner Way Westerville , OH

(002887) 43081 Phone: (614) 264-2947


FAX: (425) 663-1704

MTR Landscape Architects LLC Main 101 Bellevue Road Pittsburgh , PA

(007322) 15229-2132 Phone: (412) 931-6455


FAX: (412) 931-7764

Mueser Rutledge Consulting Engineers Main 14 Penn Plaza New York , NY

(006206) 10122 Phone: (917) 339-9300 x313


FAX: (917) 339-9400

Multi-Lynx Companies, Inc. Main 128 Golden Gate Drive Verona , PA

(003401) 15147-2606 Phone: (888) 798-4113 x0000


FAX: (412) 798-4992

Multi-Lynx Companies, Inc. 241 Fourth Avenue Pittsburgh , PA Wendy Hench

15222-6174 Phone: (888) 798-4113


FAX: (412) 798-4992

Municipality of Murrysville Main 4100 Sardis Road Murrysville , PA

(004196) 15668 Phone: (724) 327-2100 x114


FAX: (724) 327-2881

Murphy Engineers & Consultants, Inc. Main 3008 Columbia Ave. Lancaster , PA

(002203) 17603-4001 Phone: (717) 399-7441


FAX: (717) 399-7443

MVTechnologies, Inc. Main 2855 W. Market St. Akron , OH

(001130) 44333-4034 Phone: (330) 864-7450


FAX: (330) 864-8136

Myers McCarthy Consulting Engineers LLC Main 232 Wendover Drive Havertown , PA

(006308) 19083-2807 Phone: (610) 813-2083


FAX: (610) 672-9687

Naik Consulting Group, P.C. Main 200 Metroplex Drive, Suite 403 Edison , NJ

(007511) 08817 Phone: (732) 777-0030 x101


FAX: (732) 777-0040

Pennsylvania 1818 Market Street Philadelphia , PA Anthony A. Panzarino

19103 Phone: (215) 861-9314


Nassaux-Hemsley, Incorporated Main NHI Building, 56 N Second St Chambersburg , PA

(000120) 17201 Phone: (717) 263-4109 x123


FAX: (717) 263-4117

National Engineering Technology Corporation Main 121 S. Wilke Road Suite 300 Arlington Heights , IL

(000305) 60005 Phone: (404) 320-1776


FAX: (404) 320-1099

National Equipment Rental Co. Inc. Main 282 Hudson Street Hackensack , NJ

(004566) 07601-6750 Phone: (201) 342-7900


FAX: (201) 342-7902

National Fuel Gas Distribution Corporation Main 1100 State Street Erie , PA

(003509) 16501 Phone: (716) 857-7998


FAX: (716) 857-7469

Native Return, LLC Main 5 Johns Lane Lafayette Hill , PA

(008201) 19444 Phone: (610) 834-7848


FAX: (610) 834-3043

Navarro & Wright Consulting Engineers, Inc. Main 151 Reno Avenue New Cumberland , PA

(000121) 17070-2046 Phone: (717) 441-2216 x112


FAX: (717) 441-2218

Delaware - Branch Office 4164 N. Dupont Highway Dover , DE Deborah D. Foust

19901 Phone: (302) 747-7096


FAX: (302) 883-2460

Maryland - Branch Office 111 S. Calvert Street Baltimore , MD John O'Connell

21202 Phone: (410) 385-5335


FAX: (866) 386-8597

Northern PA - Branch Office 1949 Golden Mile Road Wysox , PA Charles Wright

18854 Phone: (570) 265-3580


FAX: (570) 265-3955

Western PA - Branch Office 2405 North Center Avenue Somerset , PA Thomas W. Kelly, PLS, SEO

15501 Phone: (814) 701-2160


FAX: (814) 701-2296

Nave Newell Inc Main 357 South Gulph Road King of Prussia , PA

(004080) 19406-3174 Phone: (610) 265-8323 x255


FAX: (610) 265-4299

Navigant Consulting, Inc. Main Four PPG Place Pittsburgh , PA

(003877) 15222 Phone: (412) 454-4100


FAX: (412) 454-4101

Navtech, Inc. Main P.O. Box 756 New Bloomfield , PA

(001407) 17068 Phone: (717) 582-9168


FAX: (717) 582-7306

Naztec, Inc. Main 820 Park Two Drive Sugar Land , TX

(001419) 77478 Phone: (281) 240-7233


FAX: (281) 240-7238

Mid-Atlantic Region 9965 Yates Trail Manassas , VA Steve Hetrick

20111 Phone: (703) 365-0099


FAX: (703) 393-2999

National Headquarters 820 Park Two Drive Sugar Land , TX VernonBeyer

77478 Phone: (281) 240-7233


FAX: (281) 240-7238

Northeast Region 17 Dan Del Drive Latham , NY Al Bonificio

12110 Phone: (518) 220-2040


FAX: (518) 220-2041

NDI Engineering Company Main 100 Grove Road Thorofare , NJ

(002138) 08086 Phone: (856) 848-0033 x233


FAX: (856) 848-0277

Neelu Enterprises, Inc. Main 435 Pawnee Drive Mechanicsburg , PA

(001084) 17050 Phone: (717) 763-8274


Neighborhood Planning and Architectural Design, Inc. Main 7 Glenwood Ave, Suite 102 East Orange , NJ

(003222) 07017-1041 Phone: (973) 395-1137 x1


FAX: (973) 395-1134

Nelson\Nygaard Consulting Associates Main 116 New Montgomery Street San Francisco , CA

(006375) 94105 Phone: (415) 284-1544


FAX: (415) 284-1554

Nelson\Nygaard Consulting Associates, Inc. 121 W. 27th Street New York , NY David Fields

10001-6207 Phone: (212) 242-2490


FAX: (212) 242-2549

NESCO Resource Main 6140 Parkland Blvd. Mayfield Heights , OH

(000386) 44124 Phone: (412) 344-4500


FAX: (412) 344-4601

Network Design Technologies, Inc Main 813 Tatnall Street Wilmington , DE

(007431) 19801 Phone: (610) 991-2929


New Centuries LLC d/b/a Shenango Valley Quikprint Main SHenango Valley Quikprint Hermitage , PA

(003097) 16148 Phone: (724) 347-3030


FAX: (724) 342-5552

New Enterprise Stone & Lime Co., Inc. Main 3912 Brumbaugh Road New Enterprise , PA

(001149) 16664-0077 Phone: (814) 766-2211 x3248


FAX: (814) 766-4401

Burkholder Paving -A Martin Limestone Company 621 Martindale Rd. Ephrata , PA David Powers

17522 Phone: (717) 354-1340 x1336


FAX: (888) 428-7469

Eastern Industries, Inc. Center Valley (East) 4401 Camp Meeting Rd. Center Valley , PA Brian LaSage

18034-9467 Phone: (610) 866-9400 x8272


FAX: (610) 866-4990

Eastern Industries, Inc. Clifford (North) PO Box 280 Clifford , PA Bill Faux

18413-0280 Phone: (570) 222-2177


FAX: (570) 222-3935

Eastern Industries, Inc. Winfield (West) PO Box 177 Winfield , PA Read Bachman

17889-0177 Phone: (570) 524-2251 x8124


FAX: (570) 524-7995

NES&L CO., INC. (SALES) 3912 Brumbaugh Road New Enterprise , PA DOT ELLER

16664 Phone: (814) 766-2211 x3244


FAX: (814) 766-4402

Valley Quarries, Inc. 297 Quarry Rd. Chambersburg , PA Edward Norcross

17202 Phone: (717) 267-2244 x6233


FAX: (717) 267-2521

New Kensington CDC Main 2513-15 Frankford Avenue Philadelphia , PA

(003211) 19125 Phone: (215) 427-0350


FAX: (215) 427-1302

New Visions For New Castle (501C3 Corporation) Main 138 WEST WASHINGTON STREET NEW CASTLE , PA

(002915) 16101-0000 Phone: (724) 654-8848


FAX: (724) 654-6627

Nextep-Miyama, Inc. Main 320 Irving Drive Oxnard , CA

(000384) 93030 Phone: (805) 981-7046


FAX: (805) 981-7056

Niagara Boundary & Mapping Services, LS, P.C. Main 1185 East Main Street Bradford , PA

(000277) 16701 Phone: (814) 368-9526


FAX: (716) 754-2475

Niche Consultants, Inc. Main 479 Rolling Road Bryn Mawr , PA

(003103) 19010-1228 Phone: (610) 527-7250


FAX: (610) 527-7917

Niclaus Engineering Corporation Main 804 Sarah Street Stroudsburg , PA

(008057) 18360 Phone: (570) 422-1240


FAX: (570) 422-1419

Nicolon Corporation dba TenCate Geosynthetics North America Main 365 South Holland Drive Pendergrass , GA

(004372) 30567 Phone: (706) 693-2226


Niemeyer & Associates, P.C. Main 4415 Beck Lane Ringwood , IL

(002223) 60072-9688 Phone: (815) 653-9400


FAX: (815) 728-0220

NIKA Contracting, Inc. Main 510 13th Street Campbell , OH

(007559) 44405 Phone: (330) 318-8285


Nika Linarelli Matzzie dba Linare Consulting Main 211 Vernon Drive Pittsburgh , PA

(000985) 15228 Phone: (412) 343-1731


NIRA Consulting Engineers, Inc. Main 950 Fifth Avenue Coraopolis , PA

(005534) 15108-1802 Phone: (412) 262-3970


FAX: (412) 262-1938

Nittany Engineering & Associates, LLC Main 136 W Main Street Millheim , PA

(003486) 16854 Phone: (814) 349-5760


FAX: (814) 349-8140

Nor East Mapping, Inc. Main P.O. Box 270 Kylertown , PA

(001396) 16847-0270 Phone: (814) 345-1167


FAX: (814) 345-1176

Normandeau Associates, Inc. Main 25 Nashua Road Bedford , NH

(000237) 03110-5500 Phone: (610) 705-5733


FAX: (610) 705-5739

Bedford, NH Office 25 Nashua Road Bedford , NH Peter C. Kinner

03110-5527 Phone: (603) 472-5191


FAX: (603) 472-7052

Drumore Office 1921 River Road Drumore , PA George A. Nardacci

17518 Phone: (717) 548-2121


FAX: (717) 548-2592

Stowe Office 400 Old Reading Pike Stowe , PA Paul L. Harmon

19464 Phone: (610) 705-5733 x102


FAX: (610) 705-5739

North Star Destination Strategies, Inc. Main 220 Disspayne Drive Nashville , TN

(006106) 37214 Phone: (615) 341-8781


FAX: (615) 523-1146

North Star Electrical Supply Company, Inc. Main 7906 FRANKFORD AVENUE PHILADELPHIA , PA

(001164) 19136-3016 Phone: (215) 624-2019


FAX: (215) 338-6303

Northpointe, LLC Main 209 Wisp Creek Drive Bailey , CO

(001918) 80421 Phone: (303) 838-2006


FAX: (303) 838-2017

Northwest Engineering, Inc. Main R. D. #1 Tidioute , PA

(000141) 16351 Phone: (814) 484-3504


FAX: (814) 484-7595

NOVA Contracting Services, Inc. Main 4550 McKnight Road Pittsburgh , PA

(005508) 15237 Phone: (412) 939-1622


FAX: (412) 939-1621

Novel Geo-Environmental, LLC Main 171 Montour Run Road Moon Township , PA

(002245) 15108 Phone: (412) 722-1970


FAX: (412) 722-1929

WV 650 MacCorkle Avenue West St. Albans , WV John Nottingham

25177 Phone: (304) 201-5180


FAX: (304) 201-5182

NSA Geotechnical Services, Inc. Main 15000 W. 6th Avenue, Suite 100 Golden , CO

(002282) 80401 Phone: (303) 277-9920


FAX: (303) 277-9921

NTCom International Inc. Main 27 Raffaela Dr. Malvern , PA

(006442) 19355 Phone: (610) 203-0980


FAX: (610) 408-8834

NTH Consultants, Ltd. Main 860 Springdale Drive Exton , PA

(000359) 19341 Phone: (610) 524-2300


FAX: (610) 280-6666

NTM Engineering, Inc. Main 130 West Church Street Dillsburg , PA

(003813) 17019 Phone: (717) 432-4425


FAX: (717) 432-4426

Nussbaumer & Clarke Inc. Main 3556 Lake Shore Road Buffalo , NY

(003527) 14219-1494 Phone: (716) 827-8000 x200


FAX: (716) 826-7958

NWAN Consulting Group, Inc. Main 606 West South Ave Glenolden , PA

(007639) 19036 Phone: (267) 388-4019


FAX: (866) 703-1015

O.R. Colan Associates of Florida, LLC Main 11121 Carmel Commons Blvd. Charlotte , NC

(003983) 28226 Phone: (704) 529-3115


FAX: (704) 529-3120

Ohio office 22710 Fairview Center Dr. Fairview Park , OH Kevin C. Robison

44126 Phone: (440) 827-6116 x202


FAX: (440) 827-6116

O'Brien Kreitzberg, Inc. Main One Gateway Center Pittsburgh , PA

(000310) 15222 Phone: (412) 394-6888


FAX: (412) 394-6889

O'Connell & Lawrence, Inc. Main O'Connell & Lawrence, Inc. Olney , MD

(000389) 20832 Phone: (301) 924-4570


PA Office 101 West Baltimore Street Greencastle , PA Roger Howell

17725 Phone: (717) 597-3020

FAX: (717) 597-3083

O'Donnell Consulting Engineers, Inc. Main 2940 South Park Road Bethel Park , PA

(005023) 15102 Phone: (412) 835-5007


FAX: (412) 835-5017

Oakley Services, Inc. Main 559 Main Street Bethlehem , PA

(002090) 18018 Phone: (610) 867-4526


FAX: (484) 895-3058

Ocotillo, Inc. Main 357 Kemerer Drive Greensburg , PA

(006760) 15601 Phone: (520) 481-0985


Odyssey Environmental Services, LLC Main P.O. Box 197 Mineral Ridge , OH

(004957) 44440 Phone: (330) 989-2349


Office for Planning and Architecture, Inc. Main 234 Liberty Street Harrisburg , PA

(001617) 17101 Phone: (717) 230-9660


FAX: (717) 230-9664

Oil Heritage Region, Inc. Main P.O. Box 128 Oil City , PA

(001864) 16301-0128 Phone: (814) 677-3152 x17


FAX: (814) 677-5206

Oldham Historic Properties, Inc. Main 387 Danforth Street Portland , ME

(004257) 04102 Phone: (207) 899-1192


FAX: (207) 899-1192

Olsen & Associates, LLC Main 126 S Main St. Butler , PA

(001901) 16001 Phone: (724) 282-4786


FAX: (724) 282-7619

Olszak Management Consulting, Inc. Main 812 Robinson Street East Brady , PA

(000068) 16028 Phone: (724) 526-5747


FAX: (724) 526-5747

Main 812 Robinson Street East Brady , PA Andy J McClaine

16028 Phone: (724) 526-5747


FAX: (724) 526-5747

Oman Systems, Inc. Main 135 Taggart Avenue Nashville , TN

(002364) 37205 Phone: (615) 385-2500


FAX: (615) 385-2507

Omnipro Services, LLC Main 1126 McKinley Ave NW Canton , OH

(007329) 44703-2057 Phone: (412) 944-7844


FAX: (412) 604-9109

One on 1 Accounting & Consulting Services LLC Main 131 Throne Ave York , PA

(007402) 17402-2762 Phone: (571) 264-3360


Open Roads Consulting, Inc. Main 103 Watson Road Chesapeake , VA

(006035) 23320 Phone: (757) 546-3401


FAX: (757) 546-1832

Opportunity Construction LLC Main 324 Ridge Street Steelton , PA

(007441) 17113 Phone: (717) 461-0780


FAX: (717) 461-0780

Opus International Consultants Inc.. Main 6230 Orchard Lake Road West Bloomfield , MI

(001880) 48322 Phone: (248) 539-2222


FAX: (248) 539-3670

Orbital Engineering, Inc. Main 1344 Fifth Avenue Pittsburgh , PA

(002565) 15219 Phone: (412) 261-9100


FAX: (412) 261-2308

Orion Land Services, Inc. Main 322 N. 2nd. Street Apollo , PA

(004070) 15613-1331 Phone: (724) 478-1832


FAX: (724) 478-1849

Orlind Construction Inc. Main The Medical Arts Building Philadelphia , PA

(004331) 19102 Phone: (215) 988-7773


FAX: (215) 099-7774

Orth- Rodgers & Associates, Inc. Main 4729 West Chester Pike Newtown Square , PA

(000139) 19073 Phone: (800) 803-1386 x219


FAX: (610) 355-0499

Great Valley 301 Lindenwood Drive Malvern , PA Thomas G. Storrs P.E.

19355 Phone: (610) 407-9700 x213


FAX: (610) 407-9600

Las Vegas, NV 8871 W. Flamingo Road Las Vegas , NV Walter Vodrazka, P.E.

89147 Phone: (702) 233-4060


FAX: (702) 233-4560

Mechanicsburg 4999 Louise Drive Mechanicsburg , PA Jill K. Thompson

17055 Phone: (717) 691-7700 x329


FAX: (717) 691-9092

Newtown 12 Penns Trail Newtown , PA P. Norman Deitch

18940 Phone: (609) 530-0888 x516


FAX: (609) 530-0868

Newtown Square 4729 West Chester Pike Newtown Square , PA Michael J. Rodgers

19073 Phone: (800) 803-1386


FAX: (610) 355-0499

Pittsburgh 1501 Reedsdale Street Pittsburgh , PA Scott M. Hissong P.E.

15233 Phone: (412) 567-8181 x415


FAX: (412) 322-2034

Ortiz Engineered Products, Inc. Main 8 W. Broad Street Hazleton , PA

(007888) 18201 Phone: (570) 501-3780


FAX: (570) 501-3782

Osburn Associates, Inc. Main PO Box 912 Logan , OH

(006202) 43138 Phone: (740) 385-6869


OSI/Infinity,LLC Main 8051 Aber Road Verona , PA

(005581) 15147-1601 Phone: (412) 580-4468


FAX: (412) 727-7112

Osmos USA LLC Main 7 Via Terracaleta Coto de Caza , CA

(004586) 92679-4016 Phone: (949) 589-5718


FAX: (949) 859-4868

Ott Consulting Inc. Main 222 Main Street Emmaus , PA

(004348) 18049 Phone: (610) 928-4690


FAX: (610) 928-4695

Our Town Foundation Main 8 South 4th Street Hamburg , PA

(003238) 19526 Phone: (610) 562-3106


FAX: (610) 562-3106

Overland Resources, Inc. Main 24422 Avenida de la Carlota, Suite 275 Laguna Hills , CA

(000855) 92653 Phone: (866) 944-8006 x103


FAX: (814) 944-2082

P. Joseph Lehman, Inc., Consulting Engineers Main 117 Olde Farm Office Road Duncansville , PA

(000073) 16635 Phone: (814) 695-7500


FAX: (814) 695-7505

Bedford Office 124 South Richard Street Bedford , PA Mr. Martin Malone

15522 Phone: (814) 623-6484


FAX: (814) 695-7505

PA-MD Surveyors, Inc. Main 150 Indian River Road Everett , PA

(004654) 15537 Phone: (814) 623-5135


FAX: (814) 623-5135

PACK Consultants Main 1400 Circleville Road State College , PA

(000247) 16803 Phone: (814) 231-0825


PACO Group, Inc. Main 110 William Street New York , NY

(005749) 10038 Phone: (212) 685-0578


FAX: (212) 685-0578

Pak International Engineering & Construction, Inc. Main 6614 N. 7th Street Philadelphia , PA

(001133) 19126-3021 Phone: (215) 276-4169


FAX: (215) 884-3732

PAK International Engineering & Construction, 68 Tiffany Lane Willingboro , NJ Paul Kwashie

08046 Phone: (267) 205-1915


FAX: (215) 884-3732

Pan Cultural Associates Inc. Main 22 East Street Pittston , PA

(000317) 18640 Phone: (570) 602-7614


FAX: (570) 602-7614

Pan Cultural Associates, Inc. 22 East Street Pittston , PA Al Pesotine

18640 Phone: (570) 602-7614

FAX: (570) 602-7614

Paragon Cultural Preservation Group, Inc. Main 19 Colonnade Way State College , PA

(004468) 16803 Phone: (877) 500-7274


FAX: (866) 615-1187

PARS Environmental, Inc. Main 500 Horizon Dr. Robbinsville , NJ

(006545) 08691 Phone: (609) 890-7277


FAX: (609) 890-9116

Parsons Brinckerhoff, Inc. Main One Penn Plaza New York , NY

(000069) 10119 Phone: (412) 644-3040


FAX: (412) 281-2056

Harrisburg, PA 3314 Market Street, Suite 204 Camp Hill , PA Steve Deck

17011 Phone: (717) 412-4795


PB - Philadelphia 1600 John F. Kennedy Boulevard Philadelphia , PA Steve Moore

19103 Phone: (215) 209-1204 x1203


FAX: (215) 561-9525

PB - Pittsburgh Four Gateway Center Pittsburgh , PA Joseph DiFiore

15222 Phone: (412) 644-3065


FAX: (412) 281-2056

Parsons Transportation Group Inc. Main 1818 Market Street, Suite 2350 Philadelphia , PA

(000206) 19103 Phone: (215) 568-3434


FAX: (215) 567-1203

Parsons One Gateway Center Pittsburgh , PA Lori Colangelo

15222 Phone: (412) 645-4542

Parsons Transportation Group 2715C South Front Street Steelton , PA Harold Harman

17133 Phone: (717) 939-8766


PASheftel, Inc. Main 414 Barclay Road Rosemont , PA

(000704) 19010-1218 Phone: (610) 527-3795


FAX: (610) 527-6775

Pashek Associates Limited Main 619 East Ohio Street Pittsburgh , PA

(004206) 15212 Phone: (412) 321-6362


FAX: (412) 321-9202

Capitol Region Office PO Box 297 Newport , PA Tom Vargo

17074 Phone: (717) 567-3759


FAX: (717) 567-3759

Mercer County Office PO Box 69 Greenville , PA Bob Good

16125 Phone: (724) 588-7961


FAX: (724) 588-7965

Passero Associates, P.C. Main 100 Liberty Pole Way Rochester , NY

(000776) 14604-1410 Phone: (585) 325-1000 x230


FAX: (585) 325-1691

Patel Chen Associates, Inc. Main 10105 Allentown Boulevard Grantville , PA

(000123) 17028 Phone: (717) 469-0937


FAX: (717) 469-0938

Patricia Ann Quigley, Inc. Main 1080 Quarry Hall Road Norristown , PA

(000165) 19403-1061 Phone: (610) 584-1829


FAX: (610) 584-6331

Patrick Engineering Inc Main 4970 Varsity Drive Lisle , IL

(001570) 60532 Phone: (800) 799-7050


FAX: (630) 724-1681

Patrick Engineering Inc./Ashwaubenon, WI 480 Pilgrim Way Ashwaubenon , WI Rowland Hoslet, P.E.

54304 Phone: (920) 321-2330


FAX: (920) 321-2331

Patrick Engineering Inc./Austin, TX 106 East Sixth Street Austin , TX Kevin Kasprzak, P.E.

78701 Phone: (512) 994-3270


FAX: (512) 994-3272

Patrick Engineering Inc./Boston, MA 179 Stuart Street Boston , MA Marc Chabot, P.E.

02111 Phone: (617) 583-1920


FAX: (617) 583-1921

Patrick Engineering Inc./Columbus, OH 3650 Olentangy River Road Columbus , OH Shawn A. Mason, P.E.

43214 Phone: (614) 470-9750


FAX: (614) 470-9054

Patrick Engineering Inc./Westminster, CO 1400 West 122nd Avenue Westminster , CO Jeffrey Nelson

80234 Phone: (303) 532-8620


FAX: (303) 532-8621

Patrick Engineering Inc/Chicago, IL 55 East Monroe, Suite 3450 Chicago , IL Ryan J. Westrom, P.E.

60603 Phone: (312) 201-7900


FAX: (312) 220-0722

Patrick Engineering Inc/Lisle, IL 4970 Varsity Drive Lisle , IL Jarrod J. Cebulski, P.E.

60532 Phone: (630) 795-7200


FAX: (630) 724-8400

Patrick Engineering Inc/Novi, MI 39555 Orchard Hill Pl Novi , MI Thomas Carey

48375 Phone: (248) 662-1360


FAX: (248) 662-1361

Patrick Engineering Inc/Waukesha, WI 20900 Swenson Dr Waukesha , WI Rowland Hoslet, P.E.

53186 Phone: (262) 901-2500


FAX: (262) 901-2501

Patrick Enigneering inc./Springfield, IL 300 West Edwards Street Springfield , IL Chris J. Burger, P.E.

62704-4824 Phone: (217) 525-7050


FAX: (217) 525-7053

Paul C. Rizzo Associates, Inc. Main 500 Penn Center Boulevard Pittsburgh , PA

(006725) 15235 Phone: (412) 856-9700 x2053


FAX: (412) 856-9749

Paul Carpenter Associates, Inc. Main 23 Vreeland Road Florham Park , NJ

(001006) 07932 Phone: (973) 822-8221 x1


Paul Heishman, P.E. (PH/PE) Main 103 Bucher Hill Boiling Springs , PA

(000106) 17007-9602 Phone: (717) 258-6013


Paul Peter Nasados, Jr., Incorporated Main 728 Susquehanna Avenue Sunbury , PA

(001773) 17801 Phone: (443) 421-5513


FAX: (270) 637-8150

Paula R. Maynes d/b/a Maynes Associates Architects Main 1101 Bingham Street Pittsburgh , PA

(003660) 15203-1103 Phone: (412) 488-8890


FAX: (412) 488-8892

Paulus Sokolowski and Sartor, LLC Main 2300 Chestnut Street Philadelphia , PA

(004180) 19103 Phone: (215) 496-3808


FAX: (215) 496-9221

PB Constructors Inc. Main 465 Spring Park Place Herndon , VA

(001329) 20170-5227 Phone: (703) 742-5786


FAX: (703) 742-5961

PBS Engineering & Associates PC Main 2012 Hobart Avenue Bronx , NY

(006112) 10461 Phone: (609) 903-2840


PC Network Inc. Main Suite 1402 Philadelphia , PA

(008150) 19107 Phone: (267) 236-0015


FAX: (267) 236-0016

PEDELTA, INC Main 153 1/2 SOUTH FAIRMOUNT STREET PITTSBURGH , PA

(007197) 15206 Phone: (305) 648-0010


FAX: (305) 442-1603

Pedersen & Pedersen, Inc. Main 441 Mars-Valencia Road Valencia , PA

(000285) 16059 Phone: (724) 898-3300


FAX: (724) 625-1329

Weirton Office 3200 Main Street Weirton , WV David Baker

26062 Phone: (304) 748-6190


FAX: (304) 748-5702

Peirce Engineering, Inc. Main 1220 Valley Forge Road, Suite 14 Phoenixville , PA

(005503) 19460-2676 Phone: (610) 933-8353


FAX: (610) 933-8359

Pellegrini Engineers, Inc. Main 2817 Industrial Avenue Altoona , PA

(000009) 16603-0589 Phone: (814) 944-2260


Penetradar Corporation Main 2509 Niagara Falls Blvd. Niagara Falls , NY

(002806) 14304-4518 Phone: (716) 731-4369


FAX: (716) 731-5040

Penn Environmental & Remediation, Inc. Main 2755 Bergey Road Hatfield , PA

(000969) 19440 Phone: (215) 997-9000


FAX: (215) 822-8575

Mansfield Office 13180 Route 6 Mansfield , PA Jeff Walsh

16933 Phone: (570) 724-1700

FAX: (570) 724-1780

New Martinsville Office 323 N. Main Street New Martinsville , WV Michael Kearns

26155 Phone: (304) 455-0213

FAX: (304) 455-1429

Pittsburgh Office 100 Ryan Court Pittsburgh , PA David Troudot

15205 Phone: (412) 722-1222

FAX: (412) 722-1244

PENNEASTERN ENGINEERS LLC Main 165 North Wilkes-Barre Boulevard Wilkes-Barre , PA

(006581) 18702 Phone: (570) 823-4712


FAX: (570) 823-4727

Pennoni Associates Incorporated Main One Drexel Plaza Philadelphia , PA

(000172) 19104-2897 Phone: (717) 620-5929 x5929


FAX: (717) 975-6480

Baltimore 323 W. Camden Street Baltimore , MD Maureen Decker

21201 Phone: (443) 878-9550


FAX: (410) 878-9551

Bethlehem 2041 Avenue C Bethlehem , PA Andrew Bennett

18017 Phone: (610) 231-0600


FAX: (610) 231-2033

Doylestown 2005 S. Easton Road Doylestown , PA Craig Bryson, RLA

18901 Phone: (215) 345-4591


FAX: (215) 345-7853

Haddon Heights 515 Grove Street Haddon Heights , NJ Edward P. Guetens

08035 Phone: (856) 547-0505


FAX: (856) 547-9174

King of Prussia 3100 Horizon Drive King of Prussia , PA Khaled R. Hassan, PE

19406 Phone: (610) 277-2402


FAX: (610) 277-7449

Mechanicsburg 1215 Manor Drive Mechanicsburg , PA Ronald C. Brown, PE, PLS

17011 Phone: (717) 975-6481


FAX: (717) 975-6480

Newark 121 Continental Drive Newark , DE Edward Rasiul, PE, PLS

19713 Phone: (302) 655-4451


FAX: (302) 654-2895

Pittsburgh 750 Holiday Drive Pittsburgh , PA Thomas L. Blank, CIH, CSP

15220 Phone: (412) 521-3000


FAX: (412) 521-1206

State College 2571 Park Center Blvd. State College , PA Todd Stager

16801 Phone: (814) 238-1170


FAX: (814) 238-1175

Uniontown 680 Pittsburgh Road Uniontown , PA Ronald N. Deems

15401 Phone: (724) 437-7772


FAX: (724) 437-7767

West Chester One South Church Street West Chester , PA William J. Bryant, PE

19382 Phone: (610) 429-8907


FAX: (610) 429-8918

Wilkes-Barre 100 N. Wilkes-Barre Blvd. Wilkes-Barre , PA Joseph Viscuso

18702 Phone: (570) 824-2200


FAX: (570) 824-0800

Pennsylvania Project Management Inc Main 1107 Long Run Rd White Oak , PA

(006414) 15131-2051 Phone: (412) 751-7079


FAX: (412) 751-7078

Pennsylvania Soil and Rock, Inc. Main 570 Beatty Road Monroeville , PA

(000218) 15146-1359 Phone: (412) 372-4000


FAX: (412) 372-4664

Pennsylvania Tectonics, Inc. Main 723 Main Street Archbald , PA

(007640) 18403 Phone: (570) 487-1959


FAX: (570) 487-1961

PennTerra Engineering, Inc. Main 3075 Enterprise Drive State College , PA

(005410) 16801-3241 Phone: (814) 231-8285 x357


FAX: (814) 272-1692

Percheron Acquisitions LLC Main 16000 Barkers Point Lane Houston , TX

(007532) 77079 Phone: (412) 319-7374 x105


FAX: (412) 564-5281

Percheron LLC 1370 Washington Pike Bridgeville , PA Kathy Corsi

15017 Phone: (412) 319-7347


PERI Formwork Systems Inc. Main 7135 Dorsey Run Rd Elkridge , MD

(004313) 21075 Phone: (610) 618-0550


Central and SE PA 7135 Dorsey Run Rd Elkridge , MD Klaus Wyld

21075 Phone: (443) 825-2803


FAX: (410) 796-8683

Eastern PA 1524 Rose Virginia Road Wyomissing , PA Johannes Plaggenborg

19610 Phone: (610) 373-6427


FAX: (610) 373-6428

Peripherals Plus Technologies, Inc. Main 1869 Charter Lane, Suite 201 Lancaster , PA

(001703) 17601 Phone: (717) 397-9752


FAX: (717) 397-9905

Perkins & Will Architects, PC Main 215 Park Avenue South New York , NY

(006043) 10003-1603 Phone: (212) 251-7000


FAX: (212) 251-7111

Perryman Building and Construction Services, Inc. Main 4548 Market Street Philadelphia , PA

(002082) 19139-3621 Phone: (215) 243-4109


FAX: (215) 243-4102

Peter J. Crescimanno d/b/a MSAS (Mechanical-Structural Analysis Services) Main 9 North Avenue Washington , PA

(002936) 15301-3546 Phone: (724) 228-2683


FAX: (724) 228-5179

Peter J. Smith & Company, Inc Main peter j. smith & company, inc Buffalo , NY

(004621) 14207 Phone: (716) 447-0505

Email: [email protected],

FAX: (716) 447-0545

Peters Consultants, Inc. Main 100 Robbins Avenue Berwick , PA

(000958) 18603 Phone: (570) 752-4433


FAX: (570) 752-4434

Berwick Branch 100 Robbins Avenue Berwick , PA Dennis R. Peters

18603 Phone: (570) 752-4433


FAX: (570) 752-4434

Bloomsburg Office 40 West Main Street Bloomsburg , PA Melanie Bove

17815 Phone: (570) 387-0334


FAX: (570) 387-0440

PETERS DESIGN GROUP INC. Main 301 NORTH MAIN AVENUE SCRANTON , PA

(000257) 18504 Phone: (570) 346-8446


FAX: (570) 346-8269

Peters, Tschantz and Bandwen, Inc. Main 481 N Cleveland Massillon Rd Akron , OH

(000512) 44333 Phone: (330) 666-3702


FAX: (330) 666-4165

Petroleum Traders Corporation Main 7120 Pointe Inverness Way Fort Wayne , IN

(006248) 46804-7928 Phone: (800) 348-3705 x1002


FAX: (260) 207-6347

Petrucci Consulting, LLC Main 404 Taylor Street Media , PA

(006309) 19063 Phone: (484) 366-1865


Petrus Engineering, LLC Main 566 Old Fredonia Road Mercer , PA

(007476) 16137 Phone: (724) 657-0001


Pfaffmann + Associates, P.C. Main 223 4th Avenue Pittsburgh , PA

(007031) 15222 Phone: (412) 471-2470


FAX: (412) 471-2472

PH/PE, Inc. Main 103 Bucher Hill Boiling Springs , PA

(000932) 17007-9602 Phone: (717) 258-6013


Philip Habib & Associates, P.E., P.C. Main 226 West 26th Street New York , NY

(006014) 10001 Phone: (212) 929-5656


FAX: (212) 929-5605

Philip W. Moss DBA P.W. Moss & Associates Main 7 Plumridge Drive Doylestown , PA

(007534) 18902-9244 Phone: (215) 297-5550


FAX: (215) 297-8479

Phillip C. Pierce, P.E. Main 6738 County Highway 14 Treadwell , NY

(000219) 13846 Phone: (607) 435-2806


Phillips Preiss Grygiel LLC Main 33-41 Newark Street Hoboken , NJ

(006011) 07030 Phone: (201) 420-6262


FAX: (201) 420-6222

Phoenix Engineering, Inc. Main 309 International Circle Hunt Valley , MD

(002777) 21030 Phone: (410) 329-1150


FAX: (410) 329-1110

Pickering, Corts & Summerson, Inc. Main 642 Newtown-Yardley Road Newtown , PA

(000144) 18940 Phone: (215) 968-9300 x223


FAX: (215) 968-3649

Plymouth Meeting 525 Plymouth Road Plymouth Meeting , PA Dave Alexander

19462 Phone: (610) 238-4504 x221


FAX: (610) 238-4505

Pile Mechanics, Inc. Main 264 FISHER PLACE PRINCETON , NJ

(002628) 08540 Phone: (609) 452-0333


FAX: (609) 452-0470

Piling Essentials LLC Main 1806 Colony Drive Fort Wayne , IN

(005747) 46825 Phone: (260) 415-3042


FAX: (260) 387-6269

Pine Bottom Aviation Services LLC Main 1702 Pulpit Road Martinsburg , PA

(006297) 16662-9019 Phone: (814) 793-4548


Pinnacle Consulting Management Group, Inc. Main 5534 North Western Avenue Oklahoma City , OK

(004543) 73118-4006 Phone: (405) 879-0600


FAX: (405) 879-0474

Pinto Engineering, Inc. Main 150 Farm Lane York , PA

(000124) 17402-3919 Phone: (717) 846-7151 x11


FAX: (717) 846-7231

Pioneer Consulting Services, Inc. Main 2620 West Kilgore Avenue Muncie , IN

(004276) 47304 Phone: (765) 284-0459


Pipe Services Corporation Main 665 Tower Lane West Chester , PA

(003231) 19380 Phone: (610) 692-9160


FAX: (610) 692-9169

Pittsburgh Air Systems, Inc Main 208 Bilmar Dr Pittsburgh , PA

(005576) 15205 Phone: (412) 539-1234


FAX: (412) 539-1245

Pittsburgh Builders Exchange Main 1813 North Franklin St. Pittsburgh , PA

(006130) 15233 Phone: (412) 922-4200


FAX: (412) 928-9406

Pittsburgh Engineering Consultants, Inc. Main 2200 Georgetowne Drive Sewickley , PA

(000044) 15143 Phone: (412) 276-8200


FAX: (412) 276-8285

Indiana Office 650 South 13th Street Indiana , PA Dennis R. Semsick

15701-3365 Phone: (412) 925-5538


Pittsburgh Pipe & Supply Corp d/b/a Continental Pipe & Piling Main 1715 Deer Tracks Trail St. Louis , MO

(005260) 63131 Phone: (314) 909-9101 x204


FAX: (314) 909-9191

Plan B! Consulting & Engineering Main 1 Technology Drive Hallstead , PA

(002063) 18822 Phone: (570) 879-8731


FAX: (570) 879-6824

PlanIt², Inc. Main 4198 State Route 305 Southington , OH

(005100) 44470-9723 Phone: (330) 980-0034


Plant Health Care, Inc. Main 440 William Pitt Way Pittsburgh , PA

(003376) 15238 Phone: (412) 826-5488 x108


FAX: (412) 826-5445

Polaris Engineering, Inc. Main 5015 Preakness Place Bethlehem , PA

(004702) 18020-9404 Phone: (610) 698-7185


FAX: (610) 691-5945

Pollyann Augenstein Computer Services Main 79 Long Drive Eighty Four , PA

(004056) 15330-2594 Phone: (724) 941-9538


FAX: (724) 941-0288

Poly-Carb, Inc. Main 33095 Bainbridge Road Solon , OH

(001583) 44139-2834 Phone: (440) 248-1223


FAX: (440) 248-1513

Polysat Inc. DBA Vexcon Chemicals Main 7240 State Road Philadelphia , PA

(007671) 19135 Phone: (215) 332-7709


FAX: (215) 332-9997

Polytran Engineering Associates, P.C. Main 115 Evergreen Place East Orange , NJ

(001410) 07018 Phone: (973) 672-0300 x105


FAX: (973) 672-1187

Pontis Structural Ltd. Main 8508 Breezewood Drive Pittsburgh , PA

(005681) 15237 Phone: (412) 630-8985


Porter Consulting Engineers, P.C. Main 814 North Main Street Meadville , PA

(000345) 16335 Phone: (814) 337-4447


FAX: (814) 333-3760

Porter Consulting Engineers, P.C. 115 West 11th Street Erie , PA Robin L. Stockton

16501 Phone: (800) 541-5941


FAX: (814) 455-6033

Portfolio Associates, Inc. Main 510 Walnut Street Philadelphia , PA

(001323) 19106 Phone: (215) 627-3660


FAX: (215) 627-1944

Poseidon Environmental Services, Inc. Main 623 East Tarpon Avenue Tarpon Springs , FL

(006465) 34689 Phone: (727) 942-4285


FAX: (727) 361-0111

Posluszny and McIntyre Main 3 Benedict Street Pittston , PA

(003894) 18640-2102 Phone: (570) 654-0427


FAX: (570) 654-2216

Powell-Harpstead, Inc. Main 2615 River Road, Unit 2 Cinnaminson , NJ

(000177) 08077-1628 Phone: (856) 856-7171


FAX: (856) 786-7174

Power Coatings, Inc. Main 100 Pickens Road Nitro , WV

(006214) 25143 Phone: (304) 755-0093


FAX: (304) 755-0095

Powers & Schram Inc. Main 2545 N. Atherton Street, Suite 101 State College , PA

(000252) 16803 Phone: (814) 238-1170


FAX: (814) 238-1175

POZ Environmental Main 3 Benedict street Pittston , PA

(003537) 18640 Phone: (570) 654-0113


FAX: (570) 654-2216

Pre-Construction Imaging, LLC Main 507 North York Street Mechanicsburg , PA

(004334) 17055 Phone: (717) 591-0934


FAX: (717) 697-8830

Precision Engineering and Surveying, Inc. Main 6 Old Farmstead Road Chester , NJ

(004878) 07930 Phone: (908) 879-2663


FAX: (908) 879-9880

Precision Environmental & Consulting Experts, Inc. Main PO Box 424 Mt. Pocono , PA

(002923) 18466 Phone: (800) 456-2322


FAX: (570) 894-3791

Precision Scan, L.L.C. Main 115 Todd Court Thomasville , NC

(003774) 27360 Phone: (336) 475-7550


FAX: (336) 475-7900

Presnell Associates, Inc. Main 707 W Main St Louisville , KY

(000159) 40202-2633 Phone: (800) 928-2222


FAX: (502) 581-0406

Prestige Environmental, Inc. Main 27 Progress Street Edison , NJ

(003623) 08820 Phone: (908) 757-9700


FAX: (908) 757-5050

Preusser Research Group, Inc. Main 7100 Main Street Trumbull , CT

(006460) 06611 Phone: (203) 459-8700 x108


FAX: (203) 459-8312

Preusser Research Group, Inc. (PRG South) 1104 Van Buren Ave Oxford , MS Mark Solomon

38655 Phone: (662) 236-8288


Prime Engineering & Architecture, Inc Main 300 Red Brook Blvd Owings Mills , MD

(002774) 21117 Phone: (410) 654-3790


FAX: (410) 654-3791

Columbus 3000 Corporate Exchange Drive Columbus , OH Sugu Suguness

43231 Phone: (614) 839-0250


FAX: (614) 839-0251

Pennsylvania Office 781 Far Hills Drive York , PA Jim Gyles

17349 Phone: (717) 235-4218


FAX: (717) 235-4219

Prime Engineering, Inc Main 300 Red Brook Boulevard Owings Mills , MD

(004609) 21117 Phone: (410) 654-3790


FAX: (410) 654-3791

York Office 224 St. Charles Way York , PA Jim Gyles

17402 Phone: (717) 885-0468


FAX: (717) 741-2469

Primera Engineers, Ltd. Main 100 South Wacker Drive Chicago , IL

(006081) 60613 Phone: (312) 606-0910 x420


FAX: (312) 606-0415

Probity, Inc. Main 2114 Blairmont Dr. Pittsburgh , PA

(003833) 15241 Phone: (412) 833-8301


FAX: (412) 833-8302

Product Evaluation Systems, Inc. Main 637 donohoe road latrobe , PA

(003991) 15650 Phone: (724) 834-9948


FAX: (724) 834-9948

Professional Inspection and Testing Services, Inc. Main 56 North Second Street Chambersburg , PA

(000013) 17201 Phone: (717) 263-7964 x150


FAX: (717) 263-7734

Temple Hills, MD 4572 Beech Road Temple Hills , MD Angie Swope

20748 Phone: (717) 263-7964 x154


FAX: (717) 263-7734

Professional Service Industries, Inc. (PSI) Main 850 Poplar Street Pittsburgh , PA

(000125) 15220 Phone: (412) 922-4000 x201


FAX: (412) 922-4013

PSI Harrisburg 1707 South Cameron Street Harrisburg , PA Jayson Miller, P.E.

17104 Phone: (717) 230-8622


FAX: (717) 230-8626

Professional Systems Engineering, LLC Main 1010 Church Road Lansdale , PA

(004662) 19446 Phone: (215) 661-1699


FAX: (215) 661-1280

Progressive Engineering Group, LLC Main One Drexel Plaza Philadelphia , PA

(003381) 19104 Phone: (215) 222-0606


FAX: (215) 222-0400

Knoxville 35 Market Square Knoxville , TN Roy Fisher

37902 Phone: (865) 584-5999


Promatech, Inc. Main 302 New Jersey Ave. Riverside , NJ

(004199) 08075 Phone: (856) 461-3663


FAX: (856) 461-3996

Providence Engineering Corporation Main 117 S. West End Ave. Lancaster , PA

(005475) 17603 Phone: (717) 509-7000


FAX: (717) 509-7810

Prudent Engineering LLP Main 6390 Fly Road E. Syracuse , NY

(000090) 13057-9325 Phone: (315) 432-9823


FAX: (315) 432-9826

King of Prussia Office 1150 First Avenue King of Prussia , PA Larry Parretti

19406-1341 Phone: (610) 265-4870


FAX: (610) 265-4879

Pittsburgh Office 7500 Brooktree Drive Pittsburgh , PA Theresa Myers

15090 Phone: (724) 933-8160


FAX: (724) 933-8166

PULS, Inc. Main 2299 Brodhead Road Bethlehem , PA

(006902) 18020 Phone: (800) 883-6855


Pumpcrete Corporation Main 7126 Ellicott Rd. Orchard Park , NY

(003146) 14127 Phone: (716) 667-7867


FAX: (716) 662-9498

Purdue University Main 610 Purdue Mall West Lafayette , IN

(005760) 47907-2040 Phone: (765) 494-6210


FAX: (765) 496-2871

PVE Sheffler, LLC Main Waterfront Corporate Park II Sewickley , PA

(005778) 15143-8780 Phone: (724) 444-1100


FAX: (724) 444-1104

Pyle-Stone Asphalt And Concrete, LLC Main 150 State Route 3005 Kennerdell , PA

(003775) 16374 Phone: (814) 385-1311


FAX: (814) 209-0124

Pyramid Technical Staffing Solutions, Inc. Main 2577 Interplex Dr. Trevose , PA

(005150) 19053 Phone: (215) 447-8234


FAX: (215) 701-4206

PZS Architects, LLC Main 5312 Ridge Avenue Philadelphia , PA

(004816) 19128 Phone: (215) 483-1915


FAX: (215) 930-0484

P3 Collaborative LLC Main 4 Hunter Road Princeton , NJ

(006971) 08540 Phone: (609) 688-3443


FAX: (609) 964-1714

QBS International, Inc. Main 794 Holly Road Wayne , PA

(000050) 19087 Phone: (856) 663-3222


FAX: (856) 663-1777

QLS Design and Construction, LLC Main 15040 Stone Ridge Dr. Greencastle , PA

(007893) 17225 Phone: (717) 414-9532


QproQ Engineering, Inc. Main 187 North Main Street Wilkes-Barre , PA

(000268) 18702-4425 Phone: (570) 823-9935


FAX: (570) 823-8773

Quad Three Group, Inc. Main 37 North Washington Street Wilkes-Barre , PA

(000216) 18701-3109 Phone: (570) 829-4200


FAX: (570) 819-2050

Pittsburgh 3445 Butler Street Pittsburgh , PA Edward G. Sullivan, PE

15201 Phone: (412) 781-1344


FAX: (412) 781-1389

Scranton 72 Glenmaura National Boulevard Moosic , PA James P. Palumbo, PE

18507 Phone: (570) 342-5200


FAX: (570) 342-6083

Quality Control Services, LLC Main 4721 Archmere Avenue Cleveland , OH

(003332) 44109-5268 Phone: (216) 276-8539


QCS Scranton Office 2273 Scranton Road Cleveland , OH Traci Nolan

44113 Phone: (216) 862-9264


FAX: (216) 862-9041

Quality Engineering Solutions, Inc. Main 405 Water Street Conneaut Lake , PA

(000183) 16316 Phone: (814) 382-0373


FAX: (814) 382-0375

Reno, Nevada 701 Jones St Reno , NV Sherry Morian

89503 Phone: (814) 382-0373


FAX: (814) 382-0375

Quality Environmental Professionals, Inc. Main 321 Pine St Williamsport , PA

(000239) 17701 Phone: (800) 400-9047


FAX: (317) 351-4265

Quandel Construction Group, Inc. Main 3003 North Front Street Harrisburg , PA

(005417) 17110 Phone: (717) 652-0909 x124


FAX: (717) 724-8255

The Quandel Group, Inc. 3003 North Front Street Harrisburg , PA Stacie Knode

17110 Phone: (717) 657-0909 x278


FAX: (717) 724-8255

Quandel Consultants, LLC Main 401 Jones Street Minersville , PA

(005548) 17954 Phone: (312) 634-6201


FAX: (312) 634-6232

Chicago Office 161 North Clark St Chicago , IL Charles Quandel

60601 Phone: (312) 634-6201


FAX: (312) 634-6232

Quandel Consulting, Inc Main 203 North LaSalle St Chicago , IL

(004102) 60601 Phone: (312) 558-1345


FAX: (312) 346-9603

Quandel Engineering Group, LLC Main 3003 North Front St Harrisburg , PA

(006870) 17110 Phone: (717) 657-0909


FAX: (717) 652-6282

Quandel Engineering Group, LLC 25 West Third Street Williamsport , PA Shawn Lape

17740 Phone: (570) 505-1843


Quantum Geophysics, Inc. Main 29 Richard Lee Lane Phoenixville , PA

(001399) 19460 Phone: (610) 917-9100 x14


FAX: (610) 917-9108

Quaternary Geological and Environmental Consultants,LLC. Main 4640 Walten Woods Drive Erie , PA

(004393) 16511 Phone: (814) 449-1446


FAX: (814) 393-2004

Queen Engineering Main 406 Market Street Bloomsburg , PA

(001867) 17815-1776 Phone: (570) 387-8577


FAX: (570) 387-9913

Quinn Consulting Services, Inc. Main 13501 Granite Rock Drive Chantilly , VA

(003965) 20151-2483 Phone: (703) 818-0721


FAX: (703) 818-9392

QWIC, Inc. Main 313 East Broad Streeet Palmyra , NJ

(002408) 08065 Phone: (856) 829-7942


FAX: (856) 829-7942

R. B. Shannon & Assoc. Inc. Main 314 SOUTH WATER STREET KITTANNING , PA

(000166) 16201-1628 Phone: (724) 548-1561 x10


FAX: (724) 548-1564

R. Christopher Goodwin & Associates, Inc. Main 241 East 4th Street Frederick , MD

(000024) 21701 Phone: (301) 694-0428


FAX: (301) 695-5237

R. F. Mitall & Associates, Inc. Main 117 Sagamore Hill Road Pittsburgh , PA

(004581) 15239 Phone: (724) 327-7474


FAX: (724) 325-2734

R.A. Smith National, Inc. Main 300 Corbet Street Tarentum , PA

(004898) 15084-1849 Phone: (724) 224-2330


FAX: (724) 224-5254

R.A.R. Engineering Group, Inc. Main 1135 Butler Avenue New Castle , PA

(000181) 16101 Phone: (724) 652-1004


FAX: (724) 652-3814

R.G. Hartman & Associates, Inc. Main 2101 Orchard Road Camp Hill , PA

(006096) 17011 Phone: (717) 737-3495


FAX: (717) 737-2063

R.K.R. Hess Associates, Inc. Main 112 North Courtland Street, P.O. Box 268 East Stroudsburg , PA

(000246) 18301-0268 Phone: (570) 421-1550 x103


FAX: (570) 421-6720

R.L. Banks & Associates, Inc. Main 2107 Wilson Blvd., Suite 750 Arlington , VA

(005539) 22201 Phone: (703) 276-7522


FAX: (703) 276-7732

R&R Trucking, LLC Main 6332 Dean Street Pittsburgh , PA

(005384) 15206-1836 Phone: (412) 551-9088


FAX: (412) 404-2572

Rahbari Geotechncial Engineering, LLC Main 52 Southwood Drive Cherry Hill , NJ

(006204) 08003 Phone: (856) 424-1702


FAX: (856) 330-7881

Railroad Industries Incorporated Main 1105 Terminal Way #202 Reno , NV

(002829) 89502 Phone: (775) 329-4855


FAX: (775) 329-4844

Railway Systems Design, Inc. Main Valley Forge Corporate Center Audubon , PA

(000220) 19403-2402 Phone: (610) 650-7730


FAX: (610) 650-7785

Gannett Fleming, Inc. Valley Forge Corporate Center Audubon , PA Raymond L. Hofsass

19403-2402 Phone: (610) 650-8101 x133


FAX: (610) 650-8190

Raintree Consulting, Inc. Main 4231 St. Rt. 51 South Belle Vernon , PA

(002475) 15012 Phone: (724) 929-6065


FAX: (724) 929-3333

Raudenbush Engineering, Inc. Main 29 South Union Street Middletown , PA

(000380) 17057-1446 Phone: (717) 944-0883


FAX: (717) 944-0112

New Stanton 417 South Center Avenue New Stanton , PA Dave Whitlatch, P.E.

15672 Phone: (724) 635-0437


FAX: (724) 635-0344

Pittsburgh Office 1000 Cliff Mine Road Pittsburgh , PA George E. Smith, P.E.

15275 Phone: (412) 788-6789


FAX: (412) 788-6777

RAV Associates, Inc. Main 14 Main Street Landisville , PA

(000885) 17538 Phone: (717) 898-8100


FAX: (717) 898-5255

Ravi Engineering & Land Surveying, P.C. Main 2110 S. Clinton Avenue Rochester , NY

(006970) 14618 Phone: (585) 223-3660 x314


FAX: (585) 223-4250

Raymond C. Tiegs & Associates, P.C. Main 347 Brighton Rd. Plymouth Meeting , PA

(005610) 19462-7133 Phone: (610) 277-7002


FAX: (610) 277-3955

RBS Consultants, Inc. Main 845 Fourth Avenue Coraopolis , PA

(002153) 15108 Phone: (412) 299-6980


FAX: (412) 299-6981

RBTEST2 Main 123 Any Street Harrisburg , PA

(004319) 17120 Phone: (999) 999-9999


RDK Engineering Inc Main 705 Ingham St Freeland , PA

(000459) 18224-1517 Phone: (570) 636-1122


FAX: (570) 636-0852

RDK Engineering Inc 705 Ingham St Freeland , PA David J Kavitski PE

18224-1517 Phone: (570) 636-1122


FAX: (570) 636-0852

React Environmental Professional Services Group, Inc Main 6901 Kingsessing Ave Philadelphia , PA

(005264) 19142 Phone: (215) 729-3220 x332


FAX: (215) 729-1557

RealPro Valuation, LLC Main 1845 Lititz Pike Lancaster , PA

(007606) 17601 Phone: (717) 581-0400


FAX: (717) 581-1880

RebelGroup Advisory USA Corp Main 4733 Bethesda Avenue Suite 600 Bethesda , MD

(007876) 20814 Phone: (301) 907-2900


FAX: (301) 907-2906

Redevelopment Authority of Luzerne County Main Suite # 210 West Pittston , PA

(000524) 18643 Phone: (570) 655-3329


FAX: (570) 655-3287

Redevelopment Authority of Somerset County Main 300 North Center Avenue Somerset , PA

(005935) 15501 Phone: (814) 443-2780


FAX: (814) 445-4570

RedZone Robotics, Inc. Main 91 43rd Street Pittsburgh , PA

(006490) 15201 Phone: (412) 476-8980 x292


FAX: (412) 476-8981

Reilly Associates Main 49 South Main Street Pittston , PA

(000071) 18640 Phone: (570) 654-2473


FAX: (570) 654-6880

Stroudsburg PO Box 667 Stroudsburg , PA Christopher McDermott, P.E.

18360 Phone: (570) 421-7320


FAX: (570) 421-7230

Reinaman Engineering Group, LLC Main 332 Indian Creek Drive Mechanicsburg , PA

(006431) 17050-2528 Phone: (717) 919-4954


Reliance Environmental, Inc. Main 7 Amberly Way Lititz , PA

(006520) 17543 Phone: (717) 735-9508


FAX: (717) 735-9509

REM Engineering Services, PLLC Main 2018 White Oak Drive Morgantown , WV

(003809) 26505-2374 Phone: (304) 598-0882


FAX: (304) 598-2434

Remington & Vernick Engineers Main 922 Fayette Street Conshohocken , PA

(000318) 19428 Phone: (610) 940-1050 x512


FAX: (610) 940-1161

REMLINE CORP Main 456 CORPORATE BLVD NEWARK , DE

(000264) 19702 Phone: (302) 366-0227


FAX: (302) 366-0907

Renaissance Planning Group, Inc. Main 121 S. Orange Ave. Orlando , FL

(004103) 32801 Phone: (407) 487-0061 x202


FAX: (407) 487-0058

Renaissance Planning Group - Charlottesville 455 Second Street SE Charlottesville , VA Hannah Twaddell

22902 Phone: (434) 296-2554 x106


FAX: (434) 296-2543

Renaissance Planning Group - Delray Beach 401 W. Atlantic Avenue Delray Beach , FL Susan Semple

33444 Phone: (813) 254-7741 x202


FAX: (813) 254-7742

Renaissance Planning Group - Tampa 400 North Ashley Drive Tampa , FL Frank Kalpakis, AICP

33602 Phone: (813) 254-7741 x105


FAX: (813) 254-7742

Renaissance Planning Group, Inc. - Tallahasse 519 E. Park Ave Tallahassee , FL Susan Semple

32301 Phone: (813) 254-7741 x202


FAX: (813) 254-7742

Renaissance Technologies Inc. Main 5000 Ritter Road Mechanicsburg , PA

(002417) 17055 Phone: (717) 691-7090


FAX: (717) 691-8165

Renew Design Group, Inc. Main P.O. Box 5151 New Britain , PA

(006367) 18901 Phone: (800) 998-2241 x4


FAX: (800) 998-2191

Renova Environmental Services LLC Main 3417 Sunset Avenue Ocean , NJ

(007980) 07712 Phone: (732) 659-1000


FAX: (732) 659-1034

Repco II, Inc. Main 1201 CHAPPEL AVENUE PITTSBURGH , PA

(003210) 15216 Phone: (412) 563-6220 x522


FAX: (412) 563-6227

Resolution Management Consultants, Inc. Main 5 Greentree Centre Marlton , NJ

(005020) 08053 Phone: (856) 985-5000


FAX: (856) 985-5656

Resource Development Enterprises LLC Main 613 Southern Avenue Pittsburgh , PA

(004942) 15235 Phone: (412) 551-4331


FAX: (412) 444-0391

Resource Environmental Management, Inc. Main 8 Ridge Street Montrose , PA

(000502) 18801 Phone: (570) 278-8392


FAX: (570) 278-5189

Resource Environmental Solutions, LLC Main 412 N Fourth Street Baton Rouge , LA

(007847) 70802 Phone: (225) 372-6161 x217


FAX: (225) 372-6162

Resource Professional Services, Inc. Main 1739 E. Carson Street, Suite 353 Pittsburgh , PA

(003590) 15203 Phone: (412) 630-9420


Cincinnati 4480 Lake Forest Drive, Suite 308 Cincinnati , OH Joe Mellman

45242 Phone: (513) 769-6998


FAX: (513) 769-7055

Cleveland 9885 Rockside Road, Suite 145 Cleveland , OH Gabriel Hernandez

44125 Phone: (216) 573-0955


FAX: (888) 267-9140

Columbus 6350 Presidential Gateway Columbus , OH Farah Majidzadeh

43231 Phone: (614) 823-4949


FAX: (614) 823-4990

Indianapolis 201 North Illinois Street,#1676 Indianapolis , IN Steve Johnson

46204 Phone: (317) 536-5768


FAX: (317) 535-2732

Newark 58 South Second Street, Third Floor Newark , OH Bob Hart

43055 Phone: (740) 322-6138


FAX: (740) 322-6187

Palm Beach 340 Royal Poinciana Way, Suite 317/301 Palm Beach , FL Kamran Majidzadeh

33480 Phone: (561) 337-6694

Email: kamranm@resource international.com

Rettew Associates, Inc. Main 3020 Columbia Avenue Lancaster , PA

(000052) 17603-9874 Phone: (717) 394-3721


FAX: (717) 394-1063

Athens 448 North Keystone Avenue Sayre , PA Clayton E. Bubeck

18840 Phone: (670) 565-1100

Lehigh Valley 941 Marcon Boulevard Allentown , PA Charles Myers, PE

18019 Phone: (610) 866-8330

Mechanicsburg Office 5031 Richard Lane Mechanicsburg , PA Gary Stouffer, PLS

17055 Phone: (717) 697-3551


FAX: (717) 697-6953

Pittsburgh Office Twin Towers Pittsburgh , PA Yves Pollart, PE, BCEE

15205 Phone: (412) 446-1728

FAX: (412) 446-1733

Schuylkill Haven Office 950 East Main Street Schuylkill Haven , PA Clayton Bubeck

17972 Phone: (570) 385-2270


FAX: (570) 385-2217

Williamsport Office 130 Court Street Williamsport , PA Laura L. Templeton

17701 Phone: (570) 320-1708


FAX: (570) 326-4939

Reuther & Bowen, P.C. Main 326 Ward Street Dunmore , PA

(008128) 18512-2424 Phone: (570) 496-7020 x407


FAX: (570) 496-7021

Reynolds Consulting Engineers, Inc Main 353 Markle Drive Harrisburg , PA

(007599) 17111 Phone: (717) 238-5737


FAX: (717) 238-9410

Reynolds, Smith and Hills CS, Incorporated Main 1000 Legion Place, Suite 870 Orlando , FL

(006319) 32801-1006 Phone: (407) 893-5870


FAX: (407) 648-9171

Jacksonville 10748 Deerwood Park Blvd., South Jacksonville , FL Shane Rixom

32256 Phone: (276) 791-2494


FAX: (407) 648-9171

Reynolds, Smith and Hills, Inc. Main 10748 Deerwood Park Boulevard So. Jacksonville , FL

(007791) 32256 Phone: (904) 256-2500 x2295


FAX: (904) 256-2501

RGS Associates, Inc. Main 15 S STATE ST BROWNSTOWN , PA

(006749) 17508-0388 Phone: (717) 656-4077


FAX: (717) 656-8970

RGS Associates, Inc. York Office 110 N. George Street York , PA Joel R. Snyder

17401 Phone: (717) 656-4077 x238


FAX: (717) 854-3920

Rhea Engineers & Consultants, Inc. Main 4975 William Flynn Highway Gibsonia , PA

(001977) 15044 Phone: (724) 443-4111


FAX: (724) 443-4187

RHS Engineering, Inc Main 41 S Antrim Way Greencastle , PA

(005037) 17225 Phone: (717) 597-0744


FAX: (717) 597-0535

Rhythm Engineering LLC Main 12351 W 96th Terrace Lenexa , KS

(005721) 66215 Phone: (913) 227-0603


FAX: (913) 227-0674

Richard A. Deiss PE d/b/a Richard A. Deiss and Associates Main 9342 Pettis Road Meadville , PA

(002719) 16335 Phone: (814) 336-1821


FAX: (814) 724-8636

Richard A. Geist, Consulting LLC Main Gables Office Building Altoona , PA

(007985) 16601 Phone: (814) 935-7218


Richard A. Hoover D/B/A Quality Geosciences Company Main 1102 Manada Gap Road Grantville , PA

(007186) 17028-9052 Phone: (717) 469-0456


Richard C. Parsons Land Surveying LLC Main 301 West Center Street Elysburg , PA

(004024) 17824 Phone: (570) 672-2317


FAX: (570) 672-2458

Richard Crouse & Associates, Inc. Main 467 Aviation Way Frederick , MD

(001423) 21701 Phone: (301) 846-4865


FAX: (301) 846-4868

RC&A of the Carolinas 500 Ammons Road Spartanburg , SC Johan Wilson

29306 Phone: (864) 576-3262


FAX: (864) 576-3608

Richard Grubb & Associates, Inc. Main 259 Prospect Plains Road Cranbury , NJ

(003407) 08512 Phone: (609) 655-0692 x320


FAX: (609) 395-6962

Richard H. Bulger, Jr. & Associates Main P.O. Box 331 Martinsburg , PA

(003283) 16662-0331 Phone: (814) 946-4242 x7


FAX: (814) 942-1175

Richard L. Bowen and Associates, Inc. Main The Bank Tower Pittsburgh , PA

(005899) 15222 Phone: (412) 760-5565


Richard Ortega d/b/a Ortega Consulting Main 330 West State Street Media , PA

(000301) 19063 Phone: (610) 565-1131


FAX: (610) 565-4367

Richmond Engineering Works, LLC Main 1204 Parkway View Drive Pittsburgh , PA

(002421) 15205 Phone: (412) 787-9640


FAX: (412) 787-9645

RIG Consulting, Inc. Main 803 West Main Street Carnegie , PA

(003249) 15106 Phone: (412) 276-2027


FAX: (412) 276-1798

RIG Consulting, Inc. Trenton/Mercer Airport Trenton , NJ Sharmon Winters

08628 Phone: (412) 276-2027


FAX: (412) 276-1798

Right-of-Way Services, Inc. Main Right-of-Way Services, Inc. Canonsburg , PA

(000199) 15317 Phone: (724) 514-8970


FAX: (724) 820-1277

Riley & Associates, LLC Main 4640 salmon street Philadelphia , PA

(005700) 19137-2124 Phone: (215) 533-0999


RJ Lee Group, Inc Main 350 Hochberg Road Monroeville , PA

(004266) 15146 Phone: (724) 325-1779


FAX: (724) 733-1799

RJR Safety Inc Main 164 Petroleum Ave Claysville , PA

(005095) 15323 Phone: (724) 809-4234


FAX: (724) 663-5163

RKR Hess, a Division of UTRS, Inc. Main 112 N. Courtland Street East Stroudsburg , PA

(007790) 18301 Phone: (570) 421-1550


FAX: (570) 421-6720

Robert C. Hutton DBA A And B Surveying Main 6447 East Lake Road Jamestown , PA

(004642) 16134 Phone: (724) 927-2983


FAX: (724) 927-2983

Robert C. Mendola, PLS t/a Mendola & Associates Main 1109 Taylor Ave. Dunmore , PA

(005689) 18510 Phone: (570) 840-4883


FAX: (570) 346-5310

Robert Charles Lesser & Co, LLC. Main 7200 Wisconsin Ave Bethesda , MD

(006064) 20878 Phone: (240) 644-1300


FAX: (240) 644-1311

Robert E. Blue Consulting Engineers, P.C. Main 1149 Skippack Pike Blue Bell , PA

(005673) 19422-1244 Phone: (610) 277-9441 x12


FAX: (610) 277-9897

Robert G. Bell d/b/a Bell Electrical Services Main 1142 Bank St Dickson City , PA

(005990) 18519 Phone: (570) 840-2261


Robert L. Rabell d.b.a. Robert L. Rabell Surveying & Engineering Main 10560 Walnut Street Albion , PA

(006526) 16401 Phone: (814) 756-4384


FAX: (814) 756-5638

Robert Petralia d/b/a Robert Petralia Land Surveyors Main 605 Crum Creek Road Media , PA

(002763) 19063 Phone: (610) 892-0266


FAX: (610) 892-0276

Robert S. Davis d/b/a Environmental Consultant Main 216 W. 7 Stars Rd. Phoenixville, , PA

(005480) 19460-4749 Phone: (610) 933-6940


FAX: (610) 933-6940

Robert W. Hunt Company Main 580 Waters Edge Lombard , IL

(000290) 60148-6432 Phone: (412) 921-8833


FAX: (412) 921-8836

Central Region 580 Waters Edge Lombard , IL Sam Wallis

60148-6432 Phone: (630) 691-4333


FAX: (630) 691-1688

Eastern Region 2350 Noblestown Road Pittsburgh , PA Harold Allman

15205 Phone: (412) 921-4108


FAX: (412) 921-8836

Roberta J. Pellegrini d/b/a Inspectre Technologies Main 2817 Industrial Avenue Altoona , PA

(006450) 16603-0609 Phone: (814) 944-2260


Robinson Aerial Surveys, Inc. Main One Edgeview Drive Hackettstown , NJ

(000360) 07840 Phone: (908) 813-3900 x423


FAX: (877) 497-1307

ROCK Project Controls, Inc. Main 126 Trapp Rock Lane Mars , PA

(008107) 16046 Phone: (724) 687-0144


Rodriguez Consulting, LLC Main 1301 N 2nd Street Philadelphia , PA

(006473) 19122 Phone: (215) 839-8087


FAX: (877) 839-6975

Roger C. Watson Surveying Services, Inc. Main P.O. Box 495 New Bloomfield , PA

(000406) 17068 Phone: (717) 582-7735


FAX: (717) 582-7306

Ron-Lon Inc., dba JENA Engineering Corp. Main 2358 Sunshine Road Allentown , PA

(004358) 18103 Phone: (610) 797-4200 x14


FAX: (610) 797-4600

Ronald L. Orndorff dba Ronald L. Orndorff, P.E. Main 6512 BLOOMING GROVE RD GLENVILLE , PA

(007955) 17329-9407 Phone: (717) 235-2814


ROSALES GOTTEMOELLER & ASSOCIATES, INC. Main 305 NEWBURY STREET, STE. # 21 BOSTON , MA

(000501) 02115 Phone: (617) 247-7499


FAX: (617) 247-7139

Rothman, Schubert and Reed, LLC Main 3 Lemoyne Drive Lemoyne , PA

(007387) 17043 Phone: (717) 763-1212


FAX: (717) 763-1656

Rowland Associates, Inc. Main 55 Plank Avenue Paoli , PA

(003007) 19301 Phone: (610) 889-0660


FAX: (610) 889-0663

Roy D. McQueen & Associates, Ltd. Main 22863 Bryant Court; Suite 101 Sterling , VA

(002463) 20166 Phone: (703) 709-2540


FAX: (703) 709-2535

RPA Engineering Inc. Main 3 Park Plaza Wyomissing , PA

(006572) 19610 Phone: (610) 374-6144 x254


FAX: (610) 374-6599

RR Operations Philadelphia LLC Main 3738 Birney Avenue Moosic , PA

(007608) 18507-1565 Phone: (570) 575-0599


FAX: (570) 309-0026

RTKL Associates Inc. Main 2101 L Street NW Washington , DC

(006038) 20037 Phone: (202) 833-4400


FAX: (202) 887-5168

RTVL Systems Construction Services, LLC Main 392 Franklin Avenue, Suite 21 Aliquippa , PA

(002459) 15001-3708 Phone: (412) 375-7576


FAX: (412) 375-7576

Rue Environmental LLC Main 1257 E. College Avenue State College , PA

(006134) 16801 Phone: (814) 237-1076


FAX: (814) 237-1076

Rummel, Klepper & Kahl, LLP Main 680 American Avenue King of Prussia , PA

(000067) 19406-4023 Phone: (610) 962-7860


FAX: (610) 962-7865

Baltimore Headquarters 81 Mosher Street Baltimore , MD Mr. David Wallace, P.E.

21217 Phone: (410) 728-2900


FAX: (410) 728-0282

King Of Prussia 680 American Avenue King Of Prussia , PA Todd E. Rousenberger

19406-4023 Phone: (610) 962-7860 x101


FAX: (610) 962-7865

York Office 3512 Concord Road York , PA Susan Whitney

17402 Phone: (610) 631-8151 x100


FAX: (610) 631-6309

Russel L. Bilby, P.E./P.L.S. doing business as Design Consultants Main 24 Bubblo Street West Wyoming , PA

(004700) 18644 Phone: (570) 693-3104


FAX: (570) 693-3104

Rutgers, The State University of NJ Main Office of Research & Sponsored Programs New Brunswick , NJ

(006492) 08901-8559 Phone: (732) 932-0150


FAX: (732) 932-0162

Ruth P. Whittington d/b/a Sure Test Main 1507 Arch Street Norristown , PA

(003014) 19401-3528 Phone: (610) 272-3657


FAX: (610) 272-5907

RW Armstrong & Associates, Inc. Main 300 South Meridian Street Indianapolis , IN

(006528) 46225 Phone: (317) 786-0461 x639


FAX: (317) 788-0957

Ryan-Biggs Associates, P.C. Main 7 West Gay Street West Chester , PA

(001255) 19380 Phone: (610) 701-4282


FAX: (610) 701-0205

Rybinski Engineering, LLC Main 21 Canterbury Dr. Kennett Square , PA

(008269) 19348 Phone: (610) 212-2309


FAX: (610) 444-9898

S & R Engineers, P.C. Main 127 Rt. 206, Suite 36 Hamilton , NJ

(004429) 08610 Phone: (609) 588-9701


FAX: (609) 588-9702

S. Edgar David d/b/a SED Associates, Landscape Architecture & Planning Main 740 Penllyn Blue Bell Pike Blue Bell , PA

(002188) 19422 Phone: (610) 584-5941


FAX: (610) 584-8815

S.B.Design,Inc Main 822 Elderberry Lane West Chester , PA

(004269) 19380 Phone: (610) 436-9492


FAX: (610) 436-0838

S.T.A. Engineering, Inc. Main 2499 Knight Road Pennsburg , PA

(007708) 18073 Phone: (215) 679-0200 x233


FAX: (215) 679-9004

S&G Electric Inc Main 5070 Parkside Ave, Suite 3302 Philadelphia , PA

(000685) 19131 Phone: (215) 473-9150


FAX: (215) 473-9151

SA Engineering LLC Main 27 Clyde Road, Suite 202 Somerset , NJ

(005060) 08873 Phone: (732) 873-1166


FAX: (732) 873-1168

Sabra, Wang, Associates, Inc. Main 7055 Samuel Morse Drive Columbia , MD

(000259) 21046 Phone: (443) 741-3500 x3501


FAX: (443) 741-3700

Sacunas Incorporated Main 835 Sir Thomas Court Harrisburg , PA

(000232) 17109 Phone: (717) 652-0100 x28


FAX: (717) 441-0299

Sadaka Corporation Main 9318 Marshall Road Cranberry Twp , PA

(004308) 16066 Phone: (724) 234-2805


FAX: (724) 234-2808

SafeApp, LLC Main 31 Ashlea Drive Glenmoore , PA

(006780) 19343 Phone: (610) 655-5712


Safespan Platform Systems, Inc. Main 252 Fillmore Ave Tonawanda , NY

(005441) 14304-2408 Phone: (716) 694-1100


FAX: (716) 694-1188

Safety Controls Technology, Inc. Main 5075 Taylor Drive Bedford heights , OH

(002609) 44128 Phone: (216) 587-3000


FAX: (216) 587-1586

Safety Guys, LLC Main 111 SW 23rd street Fort Lauderdale , FL

(005191) 33315 Phone: (954) 463-9811 x303


FAX: (954) 463-6973

Sage Management, LLC Main 811 E Sage Road West Chester , PA

(005187) 19382 Phone: (610) 431-2199


SAI Consulting Engineers, Inc. Main 1350 Penn Avenue Pittsburgh , PA

(000100) 15222-4211 Phone: (412) 392-8750


FAX: (412) 392-8784

SAI Harrisburg 20 Erford Road Lemoyne , PA Mr. John Rautzahn P.E.

17043-1163 Phone: (717) 763-0629


FAX: (717) 763-0920

SAIC Energy, Environment & Infrastructure, LLC Main 9400 North Broadway Oklahoma City , OK

(004718) 73114 Phone: (717) 901-8821


FAX: (717) 901-8101

Exton 180 Gordon Drive Exton , PA Eric Schmidley

19341 Phone: (610) 594-4302


Harrisburg 6310 Allentown Blvd. Harrisburg , PA Marc Reeves

17112-2790 Phone: (717) 901-8821


Pittsburgh 3002 Lebanon Church Rd. West Mifflin , PA Kenneth Bayer

15122 Phone: (412) 466-9020

SAIC Engineering, Inc. Main 6310 Allentown Blvd. Harrisburg , PA

(000204) 17112 Phone: (717) 901-8100


FAX: (717) 901-8101

SALT Design Studio, LLC Main 178 Summit Lane, Suite B Bala Cynwyd , PA

(005969) 19004 Phone: (610) 667-5048


FAX: (215) 989-4473

Sam Schwartz LLC Main 611 Broadway Suite 411 New York , NY

(001968) 10012 Phone: (212) 598-9010


FAX: (212) 598-9148

Newark 24 Commerce Newark , NJ Al Meyer

17102 Phone: (973) 639-9629


FAX: (972) 639-9191

Sammartino & Stout, Inc. Main 3111 State Street Erie , PA

(004657) 16508 Phone: (814) 456-2900


FAX: (814) 456-8070

Samuel A. Calaman d/b/a Calaman's Lawn Service Main 456 Mt. Rock Road Newville , PA

(004132) 17241 Phone: (717) 776-2326


FAX: (717) 776-7177

Sanborn Columbus, Inc. Main 6530 Singletree Drive Columbus , OH

(001440) 43229 Phone: (614) 844-6277


FAX: (614) 844-6414

Sanchez Industrial Design Inc. Main 4319 Twin Valley Rd - Suite 3 Middleton , WI

(007621) 53562 Phone: (608) 831-9777


FAX: (608) 831-9997

Santangelo & Lindsay, Inc. Main 307 Eighth Street New Brighton , PA

(000236) 15066 Phone: (724) 847-0407


FAX: (724) 847-0673

Sara Moore DBA Moore Design Associates Main 130 Heaven Lane Mars , PA

(007407) 16046-3118 Phone: (724) 898-2082


Saratoga Railroad Engineering PC Main 25 Cobble Hill Drive Wilton , NY

(005135) 12831 Phone: (518) 424-6794


FAX: (866) 468-0372

Sasaki Architects PC Main 64 Pleasant Street Watertown , MA

(005909) 02472-9149 Phone: (617) 926-3300


FAX: (617) 924-2748

SassCo Engineering Inc. Main 274 Berwind Road Wayne , PA

(004833) 19087-3702 Phone: (610) 995-2176


FAX: (610) 971-2406

SB Thomas & Associates, Inc. Main 212 Beagle Drive Moon Township , PA

(005468) 15108 Phone: (412) 264-0970


FAX: (412) 264-4444

Schetter Environmental DBA Scott Wastewater Management, Inc. Main 260 Thousand Acre Road Sellersville , PA

(006388) 18960 Phone: (215) 257-5776


FAX: (215) 257-5776

Schiller and Hersh Associates, Inc. Main 110 Pennsylvania Avenue Oreland , PA

(000060) 19075-1253 Phone: (215) 886-8947


FAX: (215) 886-8956

Schnabel Engineering Associates, Inc. Main 510 East Gay Street West Chester , PA

(000184) 19380 Phone: (610) 696-6066


FAX: (610) 696-7771

Baltimore 1504 Woodlawn Dr Baltimore , MD George Wirth

21207 Phone: (410) 944-6170

FAX: (410) 944-1162

Gaithersburg 656 Quince Orchard Rd Gaithersburg , MD Vic Omelchenko

20878 Phone: (301) 417-2400

FAX: (301) 417-2730

New Brunswick 101 Bayard Street New Brunswick , NJ Carl Montana

08901 Phone: (732) 435-1212


FAX: (732) 435-1203

West Chester 510 East Gay Street West Chester , PA Allen W. Cadden

19380 Phone: (610) 696-6066


FAX: (610) 696-7771

Schnabel Engineering Consultants, Inc Main 1380 Wilmington Pike West Chester , PA

(006098) 19382 Phone: (610) 696-6066


FAX: (610) 696-7771

Schnabel Engineering Consultants,West Chester 1380 Wilmington Pike West Chester , PA Lorraine Reilly

19382 Phone: (610) 696-6066


FAX: (610) 696-7771

Schnabel Engineering North, LLC Main 510 East Gay Street West Chester , PA

(002034) 19380 Phone: (610) 696-6066


FAX: (610) 696-7771

Baltimore 1504 Woodlawn Drive Baltimore , MD Kenneth Derrenbacher

21207 Phone: (410) 944-6170


FAX: (410) 944-1162

Gaithersburg 656 Quince Orchard Rd Gaithersburg , MD Vic Omelchenko

20878 Phone: (301) 417-2400


FAX: (301) 417-2730

Sterling 46020 Manekin Plaza Sterling , VA Walt Rabe

20166 Phone: (703) 779-0773


FAX: (703) 443-0510

Schnabel Operations, LLC Main 1380 Wilmington Pike West Chester , PA

(004734) 19382 Phone: (610) 696-6066


FAX: (610) 696-7771

Schuylkill River Development Corporation Main 2929 Arch Street Phila , PA

(003729) 19104-7395 Phone: (215) 222-6030 x102


FAX: (215) 222-6032

SCI-TEK Consultants, Inc. Main 655 Rodi Road Penn Hills , PA

(000190) 15235 Phone: (412) 371-4460 x108


FAX: (412) 371-4462

Bellefonte Office 422 E. Cherry Lane Bellefonte , PA Kevin C. Clark

16823 Phone: (814) 355-5612


FAX: (412) 371-4462

Philadelphia Office 1500 Market Street Philadelphia , PA Thomas Munlyn

19102 Phone: (267) 702-2028


FAX: (215) 569-8228

Science Applications International Corporation Main 6310 Allentown Boulevard Harrisburg , PA

(001504) 17112 Phone: (717) 901-8983


FAX: (717) 901-8149

Exton 180 Gordon Drive Exton , PA Scott Cleveland, P.E.

19341 Phone: (610) 594-4303

FAX: (610) 594-3626

Little Rock 1701 Centerview, Suite 207 Little Rock , AR Craig Leone

72211 Phone: (501) 228-4420

Oklahoma City 9400 N. Broadway, Suite 300 Oklahoma City , OK Ken Morris

73114 Phone: (405) 478-5353


St. Louis 622 Emerson Road, Suite 600 St. Louis , MO Mark Grossenbacher

63141 Phone: (314) 821-7017


Tulsa One West Third Street, Suite 100 Tulsa , OK Adam West

74103 Phone: (918) 492-1600


Westminister 1129 Business Parkway South Westminister , MD Stephen C. Howard

21157 Phone: (410) 876-0280


FAX: (410) 857-5535

Scott V Shadle, P.E. dba STI Services Main 191 Howard Street Franklin , PA

(004506) 16323 Phone: (814) 437-9727


FAX: (814) 437-6438

SE Technologies Main 400 Rouser Road, Bldg. 2 Moon Township , PA

(000251) 15108 Phone: (412) 264-2030 x2729


Seismic Surveys, Inc. Main 604 Solarex Ct., Suite 105 Frederick , MD

(003941) 21703 Phone: (301) 663-6630 x31


FAX: (301) 663-6647

Main Office P.O. Box 1185 Frederick , MD David Miller

21702 Phone: (888) 250-6566 x31


FAX: (301) 663-6647

Semaphore Hill Associates, LLC Main 4574 Nature Trail Drive Allison Park , PA

(007674) 15101 Phone: (304) 389-1164


Senate Engineering Company Main U-PARC Pittsburgh , PA

(000211) 15238-1330 Phone: (412) 826-5454


FAX: (412) 826-5458

Kittanning Office 250 South Jefferson Street Kittanning , PA William Braun

16201 Phone: (724) 548-1770 x11


FAX: (724) 548-1770

McKeesport 500 Fifth Ave. McKeesport , PA William Braun

15132 Phone: (412) 664-7125

Washington 30 South Main Street Washington , PA William Braun

15301 Phone: (724) 228-6446

Service Engineering Inc. Main 2720 Maplewood Drive Maplewood , MN

(005442) 55109 Phone: (651) 787-0838


FAX: (651) 787-0727

Seth Harry and Associates, Inc. Main 605 Morgan Station Road Woodbine , MD

(006350) 21797 Phone: (410) 489-4725


FAX: (410) 489-7554

Severino C. DePasquale dba PERDAR Company Main 147 Oakhurst Rd Pittsburgh , PA

(006479) 15215-1549 Phone: (412) 782-4759


SGC Engineering, LLC Main 501 County Road Westbrook , ME

(007020) 04092 Phone: (207) 347-8100


FAX: (207) 347-8101

SGS Architects Engineers, Inc. Main One Tyler Court Carlisle , PA

(000404) 17013 Phone: (717) 249-4569 x224


FAX: (717) 249-0284

Sharrah Design Group Inc Main 20 Chambersburg St Gettysburg , PA

(006785) 17325 Phone: (717) 334-5400


FAX: (717) 334-0922

Shaw Environmental & Infrastructure, Inc. Main 4171 Essen Lane Baton Rouge , LA

(005251) 70809 Phone: (412) 858-3324


FAX: (412) 373-7135

Shaw Environmental, Inc. Main 4171 Essen Lane Baton Rouge , LA

(002079) 70809 Phone: (814) 235-6293


FAX: (814) 235-6296

Monroeville, Pennsylvania 2790 Mosside Boulevard Monroeville , PA Harry Dravecky

15146-2792 Phone: (412) 858-3324


FAX: (412) 858-3979

State College, Pennsylvania 200 Innovation Boulevard State College , PA Richard Wardrop

19603 Phone: (814) 235-6293


FAX: (814) 235-6296

Trenton, New Jersey 200 Horizon Center Boulevard Trenton , NJ Ron Prann

08691-1904 Phone: (609) 584-8900


FAX: (609) 588-6300

West Chester, Pennsylvania 1161 McDermott Drive West Chester , PA Chris McCardell

19380-4022 Phone: (610) 241-5000


Shaw Surveying, Inc. Main 30 West Main Street New Freedom , PA

(007945) 17349 Phone: (717) 227-2818


FAX: (717) 227-2789

Shawn M. Donohue dba Shawn M. Donohue RPLS Main 484 BLUE MOUNTAIN ROAD SCHUYLKILL HAVEN , PA

(006525) 17972 Phone: (570) 754-3232


FAX: (570) 754-4240

Sheffler & Company, Inc. Main 914 Beaver Grade Road Moon Township , PA

(002295) 15108 Phone: (412) 262-3450


FAX: (412) 264-8326

Sheila Ecung dba ArrowStarr Main 1822 South Braddock Avenue Pittsburgh , PA

(005584) 15218-1837 Phone: (412) 243-6400


FAX: (412) 243-3000

Sheladia Associates, Inc. Main 4660 Trindle Road Camp Hill , PA

(000036) 17011-5610 Phone: (717) 730-4160


FAX: (717) 730-4170

Shelly and Witter Inc. Main 122 West Market Street McConnellsburg , PA

(005170) 17233 Phone: (717) 485-3119 x203


FAX: (717) 485-3138

Shelly Communications, Inc. Main 415 Carol Street New Cumberland , PA

(005918) 17070 Phone: (717) 724-1681


FAX: (717) 724-1683

Shoener Environmental Consultants, Inc. Main 239 Main St. Dickson City , PA

(007760) 18519-1653 Phone: (570) 489-6920 x300


FAX: (570) 309-0024

Shumaker Consulting Engineering and Land Surveying, P.C. Main 143 Court Street Binghamton , NY

(000128) 13901-3528 Phone: (607) 798-8081


FAX: (607) 798-8186

Shumaker - Albany 1510 Central Avenue Albany , NY Linda M. Shumaker

12205-5046 Phone: (518) 452-5730


FAX: (518) 452-9230

Shumaker - Montrose, PA 78 Public Avenue Montrose , PA Joseph Bayer, P.E.

18801 Phone: (570) 432-0024


FAX: (570) 432-0024

Shumaker - Utica 430 Court Street Utica , NY Linda M. Shumaker

13502 Phone: (315) 724-0100


FAX: (315) 724-3715

Signal Service, Inc. Main 1020 Andrew Drive West Chester , PA

(001233) 19380 Phone: (610) 429-8073 x103


FAX: (610) 429-8076

Simone Collins, Inc. Main 511Old Lancaster Avenue Berwyn , PA

(000191) 19312-1671 Phone: (610) 239-7601


FAX: (610) 239-7606

Simpson Gumpertz & Heger, Inc. Main 41 Seyon Street Waltham , MA

(005456) 02453 Phone: (781) 907-9000


FAX: (781) 907-9009

Site Design Concepts, Inc. Main 127 W Market St York , PA

(005316) 17401 Phone: (717) 757-9414


FAX: (717) 840-8205

Site Services Group, LLC Main 36 Hickory Lane Springbrook Township , PA

(007593) 18444 Phone: (570) 466-8520


FAX: (570) 909-9289

SITE-Blauvelt Engineers, Inc. Main 16000 Commerce Parkway Mount Laurel , NJ

(000021) 08054-1299 Phone: (856) 273-1224 x303


FAX: (856) 273-9244

Allentown 850 North Fifth Street Allentown , PA Donald K. Habick

18102 Phone: (610) 776-7483


FAX: (610) 776-1329

Export 1036 Corporate Drive Export , PA Scott T. Gallaher, P.G.

15632 Phone: (724) 325-7483


FAX: (724) 325-4854

Lemoyne 645 North 12th Street Lemoyne , PA Fawad Ahmed, P.E.

17043 Phone: (717) 730-7483


FAX: (717) 730-4558

Mount Laurel 16000 Commerce Parkway Mount Laurel , NJ William H. Weaver

08054 Phone: (856) 272-1224


FAX: (856) 273-9244

Siva Corrosion Services, Inc. Main 1020 Dogwood Lane West Chester , PA

(000363) 19382 Phone: (610) 692-6551


FAX: (610) 455-1450

SJH Engineering, P. C. Main 26 Jefferson Plaza Princeton , NJ

(003781) 08540-9500 Phone: (732) 329-0500


FAX: (866) 812-1207

SJH Engineering, P.C. 252 W, 37th Street New York , NY S.Jayakumaran

10018 Phone: (646) 473-0500


FAX: (866) 812-1207

Skelly and Loy, Inc. Main 449 Eisenhower Boulevard Harrisburg , PA

(000092) 17111-2302 Phone: (717) 232-0593 x3369


FAX: (717) 232-1799

Branch Office - Hagerstown, MD 19741-B Leitersburg Pike Hagerstown , MD Robert E. McClure

21742 Phone: (301) 766-4236


FAX: (301) 766-4190

Branch Office - Morgantown, WV 240 Scott Avenue Morgantown , WV Joseph C. Romano, AICP

26508 Phone: (304) 296-6500


FAX: (304) 296-6631

Branch Office - Pittsburgh, PA 3280 William Pitt Way Pittsburgh , PA Robert E. McClure

15238 Phone: (412) 828-1412


FAX: (412) 828-1475

Branch Office - Port Matilda, PA 303 South High Street Port Matilda , PA Marvin H. Klinger

16870 Phone: (814) 692-8682


FAX: (814) 692-9873

Branch Office - Wise, VA 6615 West Main Street Wise , VA Phillip C. Mullins, P.E.

24293 Phone: (276) 328-3128


FAX: (276) 328-6806

Smart and Associates, LLP Main 80 Lancaster Ave Devon , PA

(003363) 19333 Phone: (610) 254-0700


FAX: (610) 254-4200

Snyder Secary & Associates, LLC Main 2000 Linglestown Rd. Harrisburg , PA

(004905) 17110 Phone: (717) 651-1010


FAX: (717) 651-1022

So-Deep, Inc. Main 8397 Euclid Avenue Manassas Park , VA

(000127) 20111-2373 Phone: (703) 361-6005


FAX: (703) 361-7587

Aston 739 Mount Road Aston , PA John Dollard, Project Manager

19014 Phone: (610) 558-0830


FAX: (610) 558-0830

Brodheadsville, PA Shaffer Drive & Route 209, 2nd Floor Brodheadsville , PA Dennis Correll, Project Manager

18322-0448 Phone: (570) 801-7788


FAX: (570) 801-7788

Mechanicsburg, PA 443 McCormick Road Mechanicsburg , PA William D. Pickering, P.E.

17055 Phone: (717) 691-9857


FAX: (717) 691-9855

Tallmadge, OH 449 Munroe Falls Road Tallmadge , OH David R. Cole, P.L.S.

44278 Phone: (330) 794-4455


FAX: (330) 794-9284

Soil Erosion Control, Inc Main 1889 Lyndon Blvd Falconer , NY

(001210) 14733-1732 Phone: (716) 483-5745


FAX: (716) 487-2920

Sokelan Engineering Solutions, Inc. Main 1717 Fels Road Pennsburg , PA

(008302) 18073 Phone: (215) 896-9455


FAX: (215) 541-0337

Solar Testing Laboratories, Inc. Main 5399 Lancaster Drive Brooklyn Heights , OH

(001963) 44131 Phone: (216) 741-7007 x3025


FAX: (216) 741-7011

Solar Testing of Pennsylvania LLC Main 3862 East Street Pittsburgh , PA

(004798) 15214 Phone: (412) 231-8600


FAX: (412) 231-6950

Sound Fighter Systems, L.L.C. Main 1305 Airport Drive Shreveport , LA

(005329) 71107 Phone: (318) 861-6640


FAX: (318) 865-7373

Sound Planning and Evaluation Coverage Service, Inc. Main 671 Kauffman Road Alum Bank , PA

(004797) 15521 Phone: (814) 839-4359


FAX: (814) 839-4359

Southwestern Pennsylvania Commission Main Regional Enterprise Tower Pittsburgh , PA

(004400) 15219 Phone: (412) 391-5590 x347


FAX: (412) 391-9160

Sowinski Sullivan Architects, PC Main 25 Mohawk Avenue Sparta , NJ

(007256) 07871 Phone: (973) 726-3260 x124


FAX: (973) 726-7986

Sowinski Sullivan Architects, PC 1515 Market Street Philadelphia , PA Kristin Seage

19102-1917 Phone: (215) 687-2244


SP Engineering, Inc. Main 2215 Kimberton road (Lower) Kimberton , PA

(004380) 19442 Phone: (610) 983-3630


FAX: (610) 983-3631

Spartan Contracting LLC Main 5959 W. Liberty Street Hubbard , OH

(004203) 44425 Phone: (330) 534-7790


FAX: (330) 534-7792

Specialty Engineering, Inc Main 422 Mill Street Bristol , PA

(000051) 19007 Phone: (215) 785-5350


FAX: (215) 785-5359

Spillman Farmer Shoemaker Pell Whildin, P.C. Main 1720 Spillman Drive Bethlehem , PA

(006002) 18015-2169 Phone: (610) 865-2621


FAX: (610) 865-3236

SSM Group, Inc. Main 1047 N. Park Road Reading , PA

(003310) 19610-0307 Phone: (610) 621-2000


FAX: (610) 621-2001

Harrisburg First Floor Harrisburg , PA David Morgan

17101-1918 Phone: (717) 230-1487


FAX: (610) 621-2001

Lehigh Valley City Line Plaza, Suite 300 Bethlehem , PA Paul Pendzick, PE, RLA

18017-7701 Phone: (610) 849-9700


FAX: (610) 849-9701

STAAR Distributing, LLC Main 130 A Satterlee Road DuBois , PA

(006514) 15801 Phone: (814) 371-3500


FAX: (814) 371-4100

Stackhouse Bensinger Inc. Main 330 Revere Boulevard Sinking spring , PA

(005124) 19608 Phone: (610) 777-8000 x215


FAX: (610) 796-2983

Stackhouse, Seitz & Bensinger Main 330 Revere Boulevard Sinking Sprng , PA

(000312) 19608 Phone: (610) 777-8000 x214


FAX: (610) 796-2983

Stacy Richards & Associates Main 6780 Hickory Lane Harrisburg , PA

(000407) 17112-3348 Phone: (717) 657-1944


FAX: (717) 657-1944

Stafford Bandlow Engineering, Inc. Main 800 Hyde Park Doylestown , PA

(006457) 18902 Phone: (215) 340-5830


FAX: (215) 798-1550

Stahl Sheaffer Engineering, LLC Main 301 Science Park Road State College , PA

(003429) 16803 Phone: (814) 689-1562


FAX: (814) 689-1885

Pittsburgh Area 4050 Washington Road McMurray , PA Aaron C. Fayish, PE, PTOE

15317 Phone: (724) 960-1111


FAX: (724) 960-1162

Selinsgrove 5 South Market Street Selinsgrove , PA Jeffery M. Sheaffer, P.E.

17870 Phone: (570) 374-4813 x304


FAX: (814) 689-1885

Stantec Consulting Services, Inc. Main 5000 Ritter Road Mechanicsburg , PA

(000278) 17055-6922 Phone: (717) 691-3355


FAX: (717) 691-3366

Mechanicsburg 5000 Ritter Road Mechanicsburg , PA Michael P Bougher

17055-6922 Phone: (717) 691-3355 x3106


FAX: (717) 691-3366

Philadelphia 1500 Spring Garden Philadelphia , PA George Cressman

19130 Phone: (215) 665-7146


FAX: (215) 665-7001

Pittsburgh 3505 Butler Street Pittsburgh , PA Jon Oldfield

15201 Phone: (412) 687-6820

Plymouth Meeting 400 Davis Drive Plymouth Meeting , PA Al A. Kazickas

19462 Phone: (484) 322-0301


West Chester 1060 Andrew Drive West Chester , PA Charles Olivo

19380 Phone: (610) 840-2507


FAX: (610) 840-2501

Stark & Associates, pc Main 8 Ardsley Road Yardley , PA

(004731) 19067 Phone: (215) 295-1207


FAX: (215) 295-1208

Stearns Engineering Company, P.A. Main 208 North Adams Street Rockville , MD

(001730) 20850 Phone: (301) 294-9414 x202


FAX: (301) 294-3096

Stell Environmental Enterprises, Inc. Main 25 East Main Street Elverson , PA

(002341) 19520 Phone: (610) 286-0100


FAX: (610) 286-0110

Elverson Borough 55 West Main Street Elverson , PA Mary Jane Stell

19250-8629 Phone: (610) 286-0100


FAX: (610) 286-0110

Stephen J. Knash d/b/a Stephen J. Knash, P.E. Main 113 Bryn Mawr Road Honesdale , PA

(004293) 18431 Phone: (570) 253-4508


FAX: (570) 253-4508

Stephen R. Ferranti d/b/a SRF & Associates Main 3495 Winton Place Rochester , NY

(005531) 14623 Phone: (585) 272-4660


FAX: (585) 272-4662

Stephenson Surveying, Inc. Main 999 Third Street Beaver , PA

(001139) 15009 Phone: (724) 775-6690


FAX: (724) 775-6695

Stiffler, McGraw & Associates, Inc. Main 1731 North Juniata Street Hollidaysburg , PA

(000033) 16648 Phone: (814) 696-6280 x333


FAX: (814) 696-6240

Bedford 203 East Pitt Street Bedford , PA Timothy A. Cooper, P.E.

15522 Phone: (814) 623-8546


FAX: (814) 623-8562

Tidioute 16424 Route 62 Tidioute , PA Todd Banks

16351 Phone: (814) 484-3504


FAX: (814) 484-7595

Towanda 5 Lombard Street Towanda , PA William A. Sauserman, P.E.

18848 Phone: (570) 265-8816


FAX: (570) 268-4148

Stone Consulting & Design, Inc. Main 324 Pennsylvania Ave. West Warren , PA

(003713) 16365-0306 Phone: (814) 726-9870


FAX: (814) 726-9855

Stone Consulting, Inc. Main 324 Pennsylvania Avenue, West Warren , PA

(006144) 16365 Phone: (814) 726-9870


FAX: (814) 726-9855

Storti Quality Consulting, Inc. Main 800 Bartram Road Willow Grove , PA

(004469) 19090-2430 Phone: (215) 657-0837


FAX: (215) 657-0837

Stout, Tacconelli, & Associates, Inc. Main 2499 Knight Road Pennsburg , PA

(006317) 18073 Phone: (215) 679-0200 x203


FAX: (216) 679-9200

Strada Architecture LLC Main Ninth Floor Pittsburgh , PA

(004982) 15222 Phone: (412) 263-3800 x4801


FAX: (412) 471-5704

Stratecom Solutions, LLC Main 315 Shady Glen Dr Moon Twp , PA

(006511) 15108 Phone: (412) 576-4381


Strategy Solutions, Inc. Main 2402 West 8th Street Erie , PA

(004259) 16505 Phone: (814) 480-8000 x222


FAX: (814) 480-8005

SSI Pittsburgh Office 3612 McKnight East Drive Pittsburgh , PA Diane Peters

15237 Phone: (412) 765-1677


FAX: (412) 765-1505

Stratus Group, LLC Main 601 Pittsburgh Road Butler , PA

(003770) 16001 Phone: (724) 586-0143


FAX: (724) 586-2004

Straughan Environmental Services, Inc. Main 9135 Guilford Road, Suite 100 Columbia , MD

(002270) 21043-2579 Phone: (301) 362-9200 x120


FAX: (301) 362-9245

Streamline Engineering, Inc. Main 21 Sunrise Drive Leechburg , PA

(003836) 15656-1524 Phone: (412) 372-5150


FAX: (412) 372-5152

STREIT AFFILIATES, INC. Main 75 WATERFORD RD. HAMMONTON , NJ

(002320) 08037 Phone: (609) 704-8580


FAX: (609) 704-9601

Stromberg Garrigan & Associates, Inc. Main 102 E. Main Street Somerset , PA

(006068) 15501 Phone: (814) 443-1073


FAX: (814) 444-0484

Structural Testing Incorporated Main P.O. Box 9817 Newark , DE

(000316) 19714-4917 Phone: (302) 456-9245


FAX: (302) 894-0300

Stump/Hausman Partnership Main 402 Main Street Metuchen , NJ

(004250) 08840 Phone: (732) 767-9493


FAX: (732) 767-0083

STV Incorporated Main 205 West Welsh Drive Douglassville , PA

(000146) 19518-8713 Phone: (610) 385-8200


FAX: (610) 385-8501

Harrisburg 2000 Linglestown Road Harrisburg , PA Leonard R. Smith, Jr., P.E.

17110 Phone: (717) 545-2103


FAX: (717) 545-1874

Philadelphia 1818 Market Street Philadelphia , PA Robert J. Guthrie, P.E.

19103 Phone: (215) 832-3500


FAX: (215) 832-3599

Pittsburgh 444 Liberty Avenue Pittsburgh , PA Jeffrey A. Sestokas, P.E.

15222-1226 Phone: (412) 392-3508


FAX: (412) 392-3501

Sucevic, Piccolomini, & Kuchar Engineering, Inc. Main 126 Kaider Road Uniontown , PA

(000143) 15401 Phone: (724) 439-1600


FAX: (724) 439-5449

Sumathi Ravindraraj dba Global Quality & Engineering Consulting Main 1 Warm Sunday Way Mechanicsburg , PA

(000403) 17050 Phone: (717) 795-1073


Summit Environmental Consulting, LLC Main Summit Environmental Consulting, LLC Barto , PA

(000248) 19504 Phone: (484) 357-5131


FAX: (610) 845-8854

Summit Insurance Group, Inc. Main 2098 West Chester Pike Broomall , PA

(003225) 19008 Phone: (610) 356-0400


FAX: (610) 356-1794

Sunil B. Lal d/b/a Diversified Consulting Engineers Main 1624 Citation Drive Library , PA

(000328) 15129-8831 Phone: (412) 653-7251


FAX: (412) 653-6669

Sunny Hill Enterprises, Inc. Main 506 State Route 6 West Coudersport , PA

(007192) 16915 Phone: (814) 647-3318


FAX: (814) 647-9966

Sunstream Corporation Main 6 Spring Forest Avenue Binghamton, , NY

(001759) 13905-2316 Phone: (607) 724-4400 x24


FAX: (607) 724-0386

Surdex Corporation Main 520 Spirit of St. Louis Blvd. Chesterfield , MO

(001947) 63005 Phone: (636) 532-3427


FAX: (636) 537-9638

Susan M. Huffman d/b/a S. Huffman Associates Main 230 South Broad Street, Ste 303 Philadelphia , PA

(001297) 19102-4109 Phone: (215) 772-1311


FAX: (214) 772-1420

Susquehanna Civil, Inc. Main 50 Grumbacher Road York , PA

(004715) 17406 Phone: (717) 846-7151


FAX: (717) 846-7231

Suzann Rhodes, LLC Main 7466 Almendinger Road Prospect , OH

(008336) 43342-9740 Phone: (740) 225-2705


FAX: (740) 726-2081

Sweetland Engineering & Associates, Inc. Main 600 Science Park Road State College , PA

(000027) 16803 Phone: (814) 237-6518 x225


FAX: (814) 237-1488

Sycamore Environmental, LLC Main 29178 Bell Road Waterford , PA

(002623) 16441 Phone: (814) 398-8810


Sydney Lei and Associates, Inc. Main 127 Landsdowne Court Landsdowne , PA

(008288) 19050 Phone: (215) 471-9000


FAX: (215) 471-9003

Synergy Environmental, Inc. Main 155 Railroad Plaza Royersford , PA

(004578) 19468 Phone: (484) 369-5000 x3020


FAX: (484) 369-2000

Same 1008 Astoria Boulevard Cherry Hill , NJ Rick Shoyer

08003 Phone: (856) 874-4448 x102


FAX: (856) 874-1064

Synergy Real Estate Corporation Main Synergy Building Pittsburgh , PA

(001345) 15219-1815 Phone: (412) 338-4600


FAX: (412) 338-9891

Synterra, Ltd. Main 4747 South Broad Street Philadelphia , PA

(001326) 19112 Phone: (215) 243-0700


FAX: (215) 468-0799

Systems Design Engineering, Inc. Main 1032 James Drive Leesport , PA

(004524) 19533-8826 Phone: (610) 916-8500


FAX: (610) 916-8501

SYSTRA Consulting, Inc. Main 150 Clove Road, 7th Floor Little Falls , NJ

(000263) 07424 Phone: (973) 873-9716


FAX: (973) 873-9701

SYSTRA Consulting, Inc., Philadelphia, PA 1600 Market Street, Suite 1310 Philadelphia , PA Megan Brennan

19103-2340 Phone: (215) 861-9475


FAX: (215) 568-4591

Szabo Consulting Services Northeast Inc. Main 1852 Emerald Dr Orefield , PA

(006455) 18069 Phone: (610) 772-7784


T & B Management, Inc. Main 28 Eastwood Rd Tunkhannock , PA

(005631) 18657 Phone: (570) 499-8214


FAX: (570) 996-0330

T L Shaffer LLC D/B/A ACT ONE & ASSOCIATES Main 200 South 41st Street Harrisburg , PA

(007804) 17111 Phone: (717) 236-7500


T. W. Consultants, Incorporated Main 5500 Corporate Drive, Suite 300 Pittsburgh , PA

(000018) 15237-5848 Phone: (412) 369-7500


FAX: (412) 369-7964

T. W. Engineering, Incorporated Main 5500 Corporate Drive, Suite 300 Pittsburgh , PA

(000171) 15237-5848 Phone: (412) 369-7400


FAX: (412) 369-7964

T.N. Walker, Inc. Main 604 Orchard Hill Drive Pittsburgh , PA

(002022) 15238 Phone: (412) 963-1366


FAX: (412) 963-6003

T.Y. Lin International Main 1 West Broad Street Bethlehem , PA

(000160) 18018-5716 Phone: (585) 512-2000


FAX: (585) 697-3449

Albany, NY 99 Washington Avenue Albany , NY Steven Rocklin

12260 Phone: (518) 641-6884


Alexandria, VA 5285 Shawnee Road Alexandria , VA Amir Arab

22312 Phone: (703) 245-5200


FAX: (703) 333-6084

Bethlehem, PA 1 West Broad Street Bethlehem , PA Amanda Schumacher

18018 Phone: (610) 954-9060


FAX: (877) 532-4935

Buffalo, NY 100 South Elmwood Street Buffalo , NY Gerard Sentz

14202 Phone: (716) 242-5800


FAX: (716) 242-5785

Chicago, IL 200 S. Wacker Drive Chicago , IL Heather Gaffney

60606 Phone: (312) 777-2900


FAX: (312) 705-0305

Falmouth, ME 12 Northbrook Drive Falmouth , ME Kevin Ducharme

04105 Phone: (207) 347-4328


FAX: (207) 781-4753

Hackettstown, NJ One Edgeview Drive Hackettstown , NJ Robert Medina, P.E.

07840 Phone: (908) 850-3366


Hamilton, NJ 3379 Quakerbridge Road, Suite 200 Hamilton , NJ James Lester, P.E.

08619 Phone: (609) 838-6425 x206


Miami, FL 201 Alhambra Circle Coral Gables , FL Franciso Alonso

33134 Phone: (305) 714-4067


FAX: (305) 567-1771

New York, NY 110 William Street, 29th Floor New York , NY Howard Sackel

10038 Phone: (646) 264-2510


FAX: (877) 431-4806

Newark, NJ 550 Broad Street, Suite 1105 Newark , NJ Edwin Reimon, P.E., CME

07102 Phone: (973) 286-2891 x301


Philadelphia, PA 1500 John F. Kennedy Blvd. Philadelphia , PA Amanda Schumacher

19102 Phone: (215) 207-0044


FAX: (877) 532-4935

Rochester, NY 255 East Avenue Rochester , NY Robert Radley

14604 Phone: (585) 512-2000


FAX: (585) 697-3449

San Francisco, CA (Corp HQ) Two Harrison Street San Francisco , CA Dennis Jang

94105 Phone: (415) 291-3700


FAX: (415) 433-0807

T&M Associates Main 11 Tindall Road Middletown , NJ

(003112) 07748-2792 Phone: (484) 530-1270 x1713


FAX: (484) 530-1277

T&M Bethlehem 74 W Broad Street Bethlehem , PA Russell Benner, P.E.

18018 Phone: (610) 625-2999


FAX: (610) 625-2969

T&M Falls Township 188 Lincoln Highway, Suite 206 Fairless Hills , PA Russell Benner, PE

19030 Phone: (215) 486-5770


FAX: (215) 486-5791

T&M Moorestown 1256 N. Church St. Moorestown , NJ Edwin J. Steck, P.E., L.S.

08057-1129 Phone: (856) 722-6700 x104


FAX: (856) 722-1718

T&M Plymouth Meeting Plymouth Woods Office Center Plymouth Meeting , PA Russell Benner, PE

19462 Phone: (484) 530-1270 x1718


FAX: (484) 530-1277

T&M Sayre 2523 Pennsylvania Avenue Sayre , PA Russell Benner, P.E.

18840 Phone: (570) 250-1075


FAX: (610) 625-2929

Talon63 Construction Services, LLC Main 229 Riley Drive Girard , PA

(006432) 16417 Phone: (814) 566-4561


FAX: (814) 217-1578

Talson Solutions, LLC Main 306 Market St. Philadelphia , PA

(003288) 19106 Phone: (215) 592-9634


FAX: (215) 592-9636

TAMS Consultants, Inc. Main 655 Third Avenue New York , NY

(000157) 10017 Phone: (212) 867-1777 x423


FAX: (212) 697-6354

Tania J. Reinaman d/b/a Reinaman Engineering Group Main 332 Indian Creek Drive Mechanicsburg , PA

(004140) 17050-2528 Phone: (717) 919-4954


TAO, PA Inc. Main 1503 Glen Ave., Suite 100 Moorestown , NJ

(005588) 08057-1144 Phone: (856) 778-2500


FAX: (856) 778-2555

TARAS, LLC Main 91 East Vernon Street Summit Hill , PA

(006221) 18250 Phone: (570) 645-0353


FAX: (866) 618-3312

Taylor GeoServices, Inc Main 38 Bishop Hollow Road Newtown Square , PA

(004710) 19073 Phone: (610) 325-5570


FAX: (610) 325-5590

Taylor, Wiseman & Taylor Main 124 Gaither Drive Mount Laurel , NJ

(000145) 08054 Phone: (856) 235-7200 x1220


FAX: (856) 722-9250

Taylor Wiseman & Taylor (Chalfont) 1300 Horizon Drive Chalfont , PA Mark S. Mayhew

18914 Phone: (267) 956-1020


FAX: (267) 956-1019

Taylor, Wiseman & Taylor (Mohnton) 3335 Morgantown Road Mohnton , PA Mark S. Mayhew

19540 Phone: (610) 427-3329


FAX: (267) 956-1019

TBE Group, Inc. Main Cranberry Corporate Center Cranberry Township , PA

(000254) 16066 Phone: (724) 776-4711


FAX: (724) 776-4717

TBE Group, Inc. - Pennsylvania Cranberry Corporate Center Cranberry Township , PA Randy J. Seaver

16066 Phone: (724) 776-4711


FAX: (724) 776-4717

TEC, Inc. Main 18 South George Street York , PA

(003581) 17401 Phone: (717) 848-8850 x332


FAX: (717) 848-8852

Tech International Corp Main Tech International Corp Wilmington , DE

(004093) 19810 Phone: (302) 478-2132


FAX: (302) 478-1503

Rockville 1 Research Court, Suite 450 Rockville , MD Eugene Amobi

20850 Phone: (301) 251-4444


Webster 102 Webster Bldg. Wilmington , DE Paul Sykes

19810 Phone: (302) 478-2301


Technical Associates, Inc. Main 1640 Vauxhall Road Union , NJ

(000954) 07083 Phone: (908) 688-3830


FAX: (908) 688-5804

Tectonic Engineering & Surveying Consultants P.C. Main 70 Pleasant Hill Road Mountainville , NY

(006622) 10953 Phone: (800) 829-6531 x324


FAX: (845) 534-5999

Telegra, Inc Main 3030 LBJ Freeeway Dallas , TX

(004913) 75234 Phone: (631) 780-5495


FAX: (631) 504-5470

Telvent USA Corporation Main 2390 Piccard Drive Rockville , MD

(003757) 20852 Phone: (301) 354-5566


FAX: (301) 354-5567

New York 2 Rector Street New York , NY Fariel Bouattoura

10119 Phone: (212) 465-5638


FAX: (212) 465-5542

Terra-Mechanics, Inc. Main 1339 Middle Road Ext, Suite A Gibsonia , PA

(006261) 15044 Phone: (724) 449-6250


FAX: (724) 449-6254

Terrance C. Seighman d/b/a Quality Acquisition Services Main 501 Third Avenue Elizabeth , PA

(004303) 15037-1348 Phone: (412) 405-9322


FAX: (412) 405-9330

Terrasurv, Inc Main 561 Clifton Road Bethel Park , PA

(007826) 15102 Phone: (412) 341-5620


FAX: (412) 360-8440

Testex, Inc. Main 535 OLD FRANKSTOWN ROAD PITTSBURGH , PA

(004351) 15239 Phone: (412) 798-8990


FAX: (412) 798-8995

Tetra Tech NUS, Inc Main 661 Anderson Drive Pittsburgh , PA

(004598) 15220 Phone: (412) 921-7090


FAX: (412) 921-4040

Tetra Tech Professional Services, Inc. Main 3475 East Foothill Blvd Pasadena , CA

(006874) 91107 Phone: (607) 277-7100


FAX: (607) 277-1410

Tetra Tech, Inc. Main 661 Andersen Drive Pittsburgh , PA

(007742) 15220 Phone: (412) 921-7090


FAX: (412) 921-4040

Texas A&M Transportation Institute Main 3135 TAMU College Station , TX

(008064) 77843-3135 Phone: (979) 845-1715


FAX: (979) 845-1713

The Alaimo Group, Inc. Main 200 High Street Mount Holly , NJ

(002339) 08060 Phone: (609) 267-8310


FAX: (609) 267-7452

The Alaimo Group, Inc. Main 200 High Street Mount Holly , NJ

(006404) 08016 Phone: (609) 267-8310 x205


FAX: (609) 267-7452

The Architectural Studio, Ltd. Main 30 South Sitgreaves Street Easton , PA

(001987) 18042 Phone: (610) 258-4377


FAX: (610) 258-5673

The Bioengineering Group Main 18 Commercial Street Salem , MA

(002966) 01970 Phone: (978) 740-0096 x501


FAX: (978) 740-0097

Pennsylvania 193 Mansion Road Newtown Square , PA Jane O. Rowan

19073-3406 Phone: (610) 592-7674


FAX: (610) 356-6334

Salem, Massachusetts 18 Commercial Street Salem , MA Wendi Goldsmith

01970-3917 Phone: (978) 740-0096 x507


FAX: (978) 740-0097

The Capital Region Economic Development Corporation Main 3211 North Front Street Harrisburg , PA

(002757) 17110 Phone: (717) 232-4099


The Cardinal Group, Inc., Subsidiary of Stericycle, Inc. Main 18 Water Street Reading , PA

(004811) 19605 Phone: (610) 929-3563


FAX: (610) 929-0241

The Communication Solutions Group, Inc. Main 308 Old York Road, Suite 1 Jenkintown, PA , PA

(000732) 19046-3258 Phone: (215) 884-6499


FAX: (215) 884-8318

The Crossroads Group, LLC Main 1534 West Broad Street Quakertown , PA

(006408) 18951 Phone: (215) 536-0939 x104


FAX: (215) 536-0954

The Cultural, Environmental & Engineering Group Inc. Main 2 North Main Street Pittston , PA

(000332) 18640 Phone: (570) 655-6310


FAX: (570) 602-7615

The Delta Group, Inc. Main 2400 Chestnut Street Philadelphia , PA

(000271) 19103-4316 Phone: (215) 567-5252


FAX: (215) 567-2354

The Dering Consulting Group Main 2157 Market Street Camp Hill , PA

(000091) 17011-4707 Phone: (717) 234-0567


FAX: (717) 234-2077

The EADS Group, Inc. Main 1126 Eighth Avenue Altoona , PA

(000163) 16602-2500 Phone: (814) 944-5035


FAX: (814) 944-4862

Clarion 15392 Route 322 Clarion , PA Brian S. Sekula, P.E.

16214 Phone: (814) 764-5050


FAX: (814) 764-5055

Johnstown 227 Franklin Street Johnstown , PA Stephan M. Sewalk, P.E.

15901 Phone: (814) 535-5388


FAX: (814) 535-7654

Lewistown 147 East Market Street Lewistown , PA Lucas Parkes, P.E.

17044 Phone: (717) 248-0265

North Huntingdon 11045 Parker Drive North Huntingdon , PA Benjamin W. Faas, P.E.

15642 Phone: (814) 764-0801


FAX: (412) 764-0860

Somerset and Maryland 450 Aberdeen Drive Somerset , PA Thomas M. Reilly, P.E.

15501 Phone: (814) 445-6551


FAX: (814) 443-2748

The Edgecombe Group, Inc Main 3415 Hamilton Street Hyattsville , MD

(004383) 20782 Phone: (301) 864-0042


FAX: (301) 864-1131

The Faux Group, Inc. Main 716 Giddings Avenue Annapolis , MD

(006337) 21401 Phone: (410) 295-6517


FAX: (410) 295-6512

The Franklin Group, Inc. dba Rocky Top Building Products Main 1050 North Main Street Rocky Mount , VA

(004889) 24151 Phone: (540) 483-5264 x270


FAX: (540) 483-1651

The Gateway Engineers, Inc. Main 400 Holiday Drive Pittsburgh , PA

(001942) 15220-2727 Phone: (412) 921-4030


FAX: (412) 921-9960

Butler Office 201 South Main Street Butler , PA Patrick O'Leary

16001 Phone: (412) 921-4030 x152


FAX: (412) 921-9960

The ICx Transportation Group, Inc. Main 1720 Clay Street San Francisco , CA

(005842) 94109 Phone: (888) 511-4298


The Image Network d/b/a Dover, Kohl & Partners Main 1571 Sunset Drive Coral Gables , FL

(006021) 33143 Phone: (305) 666-0446


FAX: (305) 666-0360

The Judy Company, Inc. Main 8334 Ruby Avenue Kansas City , KS

(007484) 66111 Phone: (913) 422-5088


FAX: (913) 422-5307

The L A P Group, Inc. Main 1031 Ives Dairy Road, Ste-228 Miami Gardens , FL

(005117) 33179 Phone: (305) 474-9958


FAX: (305) 625-7533

The Landmarks Development Corporation Main 100 W. Station Square Drive Pittsburgh, PA , PA

(006129) 15219 Phone: (412) 471-5808


FAX: (412) 471-1633

The Leonidas Group, Inc. Main 1948 Rudy Road Harrisburg , PA

(006237) 17104 Phone: (717) 557-8048


The Lexis Group, LLC Main 2 Secretariat Drive Dillsburg , PA

(005712) 17019 Phone: (717) 982-5133


FAX: (717) 502-8622

The Lighting Practice, Inc. Main 600 Chestnut Street Philadelphia , PA

(005937) 19106-3408 Phone: (215) 238-1644


FAX: (215) 238-1674

The Louis Berger Group, Inc. Main 412 Mount Kemble Avenue Morristown , NJ

(002207) 07962 Phone: (973) 407-1000


FAX: (973) 267-6468

The Louis Berger Group, Inc., Exton 350 Eagleview Blvd., Suite 250 Exton , PA Tom Dominiecki

19341-1178 Phone: (610) 280-4000 x4003


FAX: (610) 363-5390

The March Company Main 200 Limerick Center Road Limerick , PA

(004948) 19468 Phone: (610) 495-0333


FAX: (610) 495-0337

The Markosky Engineering Group, Inc. Main 223 East Main Street Ligonier , PA

(000243) 15658-1347 Phone: (724) 238-4138


FAX: (724) 238-4194

The Markosky Engineering Group, Inc. 4000 Hempfield Plaza Boulevard Greensburg , PA Joseph R. Dietrick, P.E., P.L.S.

15601 Phone: (724) 832-3106


FAX: (724) 832-3109

The McKissack Group, Inc. Main 30 SOUTH 15TH STREET Philadelphia , PA

(000130) 19102-2122 Phone: (215) 988-9450


FAX: (215) 988-9434

New York 150 West 30th Street New York , NY Michael Tolliver

10001 Phone: (212) 349-6500


FAX: (212) 760-4259

The Neel Company Main 8328-D Traford Lane Springfield , VA

(002354) 22152 Phone: (703) 913-7858 x18


FAX: (703) 913-7859

The Newton Engineering Group, P.C. Main 6235 Hamilton Blvd. Allentown , PA

(000355) 18106-9797 Phone: (610) 366-0060


FAX: (610) 366-7818

Newton Engineering 6235 Hamilton Blvd. Allentown , PA Harold H. Newton

18106 Phone: (610) 366-0060


FAX: (610) 366-7818

The Ottery Group, Inc. Main 2900 Linden Lane, Suite 210 Silver Spring , MD

(001433) 20910 Phone: (301) 562-1975


FAX: (301) 562-1976

The Palumbo Group, Inc. Main 318 Penn Avenue Scranton , PA

(001051) 18503-1931 Phone: (570) 961-2385


FAX: (570) 341-5148

The Paper Exchange Main 1601 Lager Street Pittsburgh , PA

(003236) 15212 Phone: (412) 325-7075 x224


FAX: (412) 325-7079

The Partnership TMA of Montgomery County Main 134 N. Main Street North Wales , PA

(008225) 19454 Phone: (215) 699-2733


FAX: (215) 699-3462

The Pennsylvania State University Main The Pennsylvania State University University Park , PA

(002406) 16802 Phone: (814) 863-3304


FAX: (814) 865-1692

The Pontem Group, Inc. Main 651 Holiday Drive Pittsburgh , PA

(007809) 15220 Phone: (412) 928-3239


FAX: (412) 928-4951

The Ratsep Group, Inc. Main 4 Chester County Commons Malvern , PA

(001732) 19355-1942 Phone: (610) 695-8900


FAX: (610) 647-1950

The RBA Group, Inc. Main The RBA Group Parsippany , NJ

(000077) 07054-4495 Phone: (973) 946-5600


FAX: (973) 984-5421

Columbia 7164 Gateway Drive Columbia , MD Robert Nelson

21046 Phone: (410) 312-0966


FAX: (410) 312-0897

New York 21 Union Square New York , NY David Lapping

10003-3366 Phone: (212) 741-8090


FAX: (212) 633-1205

Parsippany 7 Campus Drive Parsippany , NJ John J. Maiorana

07054 Phone: (973) 946-5650


FAX: (973) 984-5421

The Reinforced Earth Company Main 8614 Westwood Center Drive Vienna , VA

(001964) 22182 Phone: (703) 821-1175


FAX: (703) 749-4323

The Robert B. Balter Company Main 18 Misic Fair Road Owings Mills, , MD

(004071) 21117 Phone: (410) 363-1555 x231


FAX: (410) 363-8073

The Sanborn Map Company, Inc. Main 1935 Jamboree Drive Colorado Springs , CO

(000376) 80920-5358 Phone: (719) 593-0093


FAX: (719) 528-5093

The Sidwell Company Main 675 Sidwell Court St. Charles , IL

(005392) 60174-3492 Phone: (630) 549-1020


FAX: (630) 549-1111

The Smart Associates, Environmental Consultants, Inc. Main 72 N Main St. Concord , NH

(004255) 03301-4983 Phone: (603) 224-7550


FAX: (603) 224-7890

The Street Plans Collaborative, Inc. Main 4560 SW 68 Court Circle Miami , FL

(006030) 33155 Phone: (305) 978-6426


The Temple Group, Inc. Main 230 South Braod Street Philadelphia , PA

(004973) 19102 Phone: (215) 545-2105


FAX: (215) 545-2109

The Traffic Group, Inc. Main 9900 Franklin Square Drive Baltimore , MD

(000038) 21236 Phone: (410) 931-6600


FAX: (410) 931-6601

The Transtec Group, Inc. Main 6111 Balcones Drive Austin , TX

(005086) 78731 Phone: (512) 451-6233 x226


Pennsylvania Office 5011 Muirfield Place Mechanicsburg , PA Dan Dawood

17050 Phone: (717) 829-9816

The Vann Organization, Inc. Main 11 SAYER AVENUE CHERRY HILL , NJ

(000652) 08002 Phone: (856) 486-4440


FAX: (856) 486-1301

The Waetzman Planning Group, Inc. Main 1230 County Line Road Bryn Mawr , PA

(005708) 19010 Phone: (610) 527-0600


FAX: (610) 527-0445

The Wilson T. Ballard Company Main 17 Gwynns Mill Court Owings Mills , MD

(000229) 21117 Phone: (410) 363-0150


FAX: (410) 363-7811

The Wilson T. Ballard Company 28 Northbrook Drive, Suite 3 Shrewsbury , PA Ronald W. Rye

17361 Phone: (717) 235-0770


FAX: (717) 235-3149

The Woodside Consulting Group, Inc. Main 250 Cambridge Ave. Palo Alto , CA

(005529) 94306 Phone: (650) 289-9850 x11


FAX: (650) 289-9856

Thew Associates PE-LS, PLLC Main 6431 US Highway 11 Canton , NY

(005488) 13617 Phone: (315) 386-2776


FAX: (315) 386-1012

Utica 9478 River Road Marcy , NY Robert H. Korosec, PLS

13403 Phone: (315) 733-7178


FAX: (315) 797-1957

THG Company, Inc. Main 623 Washington Street Meadville , PA

(000315) 16335 Phone: (814) 337-1300


FAX: (814) 337-1304

ThinkGreen LLC Main 205 Berkeley Road Glenside , PA

(002511) 19038 Phone: (215) 887-2595


FAX: (215) 887-2596

Third Rock Consultants, LLC Main 2514 Regency Rd, Suite 104 Lexington , KY

(003066) 40503 Phone: (859) 977-2000


FAX: (859) 977-2001

Thomas Comitta Associates, Inc. Main 18 W. Chestnut Street West Chester , PA

(006370) 19380 Phone: (610) 696-3896


FAX: (610) 430-3804

Thomas E. Englerth d/b/a TME Surveying, LLC Main 510 Lincoln Way West Chambersburg , PA

(005244) 17201 Phone: (717) 263-0515


FAX: (717) 263-6378

Thomas Environmental Services, Inc Main 2109 Medary Avenue Philadelphia , PA

(004721) 19138-2525 Phone: (215) 276-7040


FAX: (215) 276-7041

Thomas H. Hutt d/b/a Thomas H. Hutt Main 2 Crest Drive Hockessin , DE

(001378) 19707-9772 Phone: (302) 239-5941


FAX: (302) 836-4585

Thomas J. McLane Associates Main 601 Stafford Avenue Scranton , PA

(000240) 18505 Phone: (570) 347-3668


FAX: (570) 341-5413

Thomas K. Dyer, Inc. Main 1762 Massachusetts Avenue Lexington , MA

(000186) 02420 Phone: (781) 862-2075


FAX: (781) 861-7766

Thomas L. Zeigler, P.E., Inc. Main 279 Continental Dr. Pottstown , PA

(008106) 19464-1607 Phone: (610) 327-3805


Thomas R. Lewis d/b/a Archaeological Investigative Services Main 36 Deer Run Road Boyertown , PA

(007894) 19512-8312 Phone: (610) 845-3944


FAX: (610) 845-3944

Timothy E. Gerhart DBA Gerhart Engineering Main Foster Plaza 5 suite 300 Pittsburgh , PA

(006539) 15220 Phone: (412) 928-2057


FAX: (412) 928-4951

Timothy Haahs & Associates, Inc. Main 550 Township Line Road Blue Bell , PA

(006115) 19422 Phone: (484) 342-0200


FAX: (484) 342-0222

Atlanta 12725 Morris Road Extension Alpharetta , GA Michael Martindill

30004 Phone: (770) 850-3065


FAX: (770) 850-3066

Miami 10305 NW 41st Street Miami , FL Mark Santos

33178 Phone: (305) 592-7123 x14


FAX: (305) 592-7113

New Brunswick 144 Livingston Ave New Brunswick , NJ James Zullo

08901 Phone: (732) 253-0690


FAX: (732) 253-0689

Tinicum Technical Services, Inc. Main 2 Lear Drive Ottsville , PA

(002243) 18942 Phone: (610) 847-3040


FAX: (610) 847-3040

Tippetts/Weaver Architects, Inc. Main 137 North Duke Street Lancaster , PA

(006513) 17602 Phone: (717) 394-0553


FAX: (717) 394-0052

Tishman Construction Corporation of Pennsylvania Main 1900 Market Street Philadelphia , PA

(005235) 19103 Phone: (215) 636-0909


FAX: (215) 636-0930

Tiv Engineering, LLC Main 115 Evergreen Heights Drive, #222 Pittsburgh , PA

(005946) 15229-1346 Phone: (412) 415-5222


FAX: (412) 415-5221

TLC Engineering, Inc. Main 8204 Westglen Drive Houston , TX

(005805) 77063 Phone: (713) 868-6900


FAX: (713) 868-0001

TLI Solutions, Inc. Main 560 Golden Ridge Road Golden , CO

(003633) 80401 Phone: (856) 988-9566


FAX: (856) 988-9580

TMG Consulting Engineers Main 6614 Ruppsville Road Allentown , PA

(005902) 18106 Phone: (610) 391-9650


FAX: (610) 391-9654

Tolman Engineering, PLLC Main 3610 Lawson Road Jamestown , NY

(005787) 14701 Phone: (716) 484-1366


FAX: (716) 484-1519

Tomaino Tomaino Iamello & Associates, PA Main 136 Brighton Avenue Deal , NJ

(003100) 07723-1295 Phone: (732) 531-2282 x123


FAX: (732) 531-7548

Tonon USA: Engineering, Measurements, and Testing, LLC Main 2304 Bowman Ave. Austin , TX

(007445) 78703 Phone: (512) 200-3051


FAX: (512) 200-3051

Total Landscaping, Inc. Main RR#3 Box 3662 Honesdale , PA

(000536) 18431 Phone: (570) 253-0222


FAX: (570) 253-7250

Town Planning Partnership LLC Main 102 Sandy Ridge Dr Doylestown , PA

(006726) 18901 Phone: (215) 872-4411


TQS, Inc. Main 1382 Old Freeport Road Pittsburgh , PA

(002348) 15238 Phone: (412) 826-3440


FAX: (412) 826-3441

Trade Eastern, Inc Main 53 Gravel Street Wilkes-Barre , PA

(005198) 18705-8560 Phone: (570) 287-3178


FAX: (570) 287-5025

Traffic Control Services, LLC Main 1411 Stoneridge Drive Middletown , PA

(001787) 17057 Phone: (717) 482-8800


FAX: (717) 944-1732

Harrisburg 1411 Stoneridge Drive Middletown , PA Bill McDanold

17057 Phone: (717) 944-8440


FAX: (717) 944-8447

King of Prussia 1009 W. 9th Avenue King of Prussia , PA Stephanie Steffy

19406 Phone: (610) 265-3682


FAX: (610) 265-3675

Traffic Planning and Design, Inc. Main 2500 East HIgh Street Pottstown , PA

(000094) 19464 Phone: (610) 326-3100


FAX: (610) 326-9410

Allentown 812 W. Hamilton Street Allentown , PA Eric Ostimchuk, P.E.

18101 Phone: (610) 625-4242


FAX: (610) 625-4250

Doylestown 253 W. State Street Doylestown , PA Greg Richardson

18901 Phone: (215) 622-2525


FAX: (215) 384-4824

Harrisburg 1426 N Third Street Harrisburg , PA Craig Mellott, P.E.

17102 Phone: (717) 234-1430


FAX: (717) 234-4490

Pittsburgh St Claire Plaza Pittsburgh , PA Craig Mellott, P.E.

15241 Phone: (412) 765-3717


FAX: (412) 765-3719

Traffic Solutions and Services, Inc. (TS2) Main 10211 Northeast Avenue Philadelphia , PA

(005894) 19116 Phone: (215) 475-7737


FAX: (215) 970-7011

Traffic Solutions, Inc. Main 20005 Lindenhurst Ct Hagerstown , MD

(005414) 21742 Phone: (240) 329-2645


FAX: (240) 329-4658

Trafficware Training Services d/b/a Albeck + Associates Main 6519 N 159th Ave Cir Omaha , NE

(006027) 68116-4054 Phone: (402) 964-9824


Trans Associates Engineering Consultants, Inc. Main Twin Towers, Suite 400 Pittsburgh , PA

(000209) 15205 Phone: (412) 490-0630


FAX: (412) 490-0631

Columbus Office 941 Chatham Lane Columbus , OH Mark I. Mann, P.E.

43221 Phone: (614) 459-7930


FAX: (614) 459-4485

Harrisburg Office 123 North Enola Drive Enola , PA Eileen M. Pauletta, P.E., PTOE

17025 Phone: (717) 732-7066


FAX: (717) 732-6736

Pittsburgh Office - Corporate Headquarters 4955 Steubenville Pike Pittsburgh , PA Robert Goetz, P.E.

15205 Phone: (412) 490-0630


FAX: (412) 490-0631

State College 301 Science Park Road State College , PA Nicholas J. Schaefer, P.E.

16803 Phone: (814) 231-4812


FAX: (814) 231-4996

Trans-Pacific Engineering Corporation Main 2300 Computer Avenue Willow Grove , PA

(006852) 19090 Phone: (215) 659-2490


FAX: (215) 659-2702

TransCore, ITS Main 8158 Adams Drive Hummelstown , PA

(000249) 17036 Phone: (717) 561-2400


FAX: (717) 564-8439

Ankeny, IA 6950 NE 14th St., Ste. 31 Ankeny , IA Alex Preston

50023 Phone: (515) 257-7333


FAX: (515) 963-5360

Bank PO Box 933493 Atlanta , GA Angela

31193-3493 Phone: (717) 623-4604

Houston, TX 4903 West Sam Houston Pkwy N, Ste. A-300 Houston , TX Clint Holley

77041 Phone: (713) 355-3628


FAX: (713) 355-3349

Las Vegas, NV 697 Corinthian Way North Las Vegas , NV Tim Souder

89030 Phone: (702) 873-3249


FAX: (702) 873-3634

Lenexa, KS 7903 Bond Street Lenexa , KS Blake Hansen

66214 Phone: (913) 538-5284


FAX: (913) 660-0391

Los Angeles, CA 626 Wilshire Blvd., Suite 818 Los Angeles , CA Sharon Turnbo

90017 Phone: (213) 327-0922


FAX: (213) 327-0892

Manassas, VA 8158 Flannery Court Manassas , VA Stephanie DeFazio

20109 Phone: (571) 208-0088


FAX: (571) 208-0090

Miramar, FL 3901 Commerce Parkway Miramar , FL Roger Marrero

33025 Phone: (954) 342-0690


FAX: (954) 450-9687

New York 253 West 35th Street, 3rd Floor New York , NY Jeffrey Arch

10001 Phone: (212) 629-8380


FAX: (212) 629-6369

Norcross, GA 192 Technology Parkway, Suite 500 Norcross , GA Elizabeth Williams

30092 Phone: (770) 447-6831


FAX: (770) 449-7268

Orlando, FL 5858 South Semoran Blvd. Orlando , FL James Wilson

32822 Phone: (407) 382-1301


FAX: (407) 382-8914

Salt Lake City, UT 2401 South 1070 West Suite B West Valley City , UT Michael Mauritz

84119 Phone: (801) 886-9170


FAX: (801) 886-9169

Scottsdale, AZ 15300 North 90th Street, Suite 750 Scottsdale , AZ Larry Henson

85260 Phone: (480) 551-4600


FAX: (480) 661-5490

Tampa, FL 6021 Orient Road Tampa , FL Jonathan Turskey

33610 Phone: (813) 620-3983


FAX: (813) 626-7871

Transdyn , Inc. Main 4256 Hacienda Drive Pleasanton , CA

(001163) 94588 Phone: (925) 225-1600 x105


FAX: (925) 225-1600

Transfomation Systems, Inc. Main 2537 Gessner, Suite 103 Houston , TX

(000949) 77063 Phone: (713) 952-7494


FAX: (713) 952-7497

TranSmart Technologies, Inc. Main 2802 Coho Street, Suite 102 Madison , WI

(002235) 53713 Phone: (608) 273-4740 x11


FAX: (608) 273-4783

Transport Data Systems, Inc. Main 1261C Rosecrans Street San Diego , CA

(002643) 92106-2661 Phone: (619) 226-2534


FAX: (619) 226-2534

Transportation Construction Services, Inc. Main 1818 Market Street Philadelphia , PA

(000293) 19103-3672 Phone: (215) 633-8601 x225


FAX: (215) 633-8607

Transportation Management Association of Chester Co. Main 7 Great Valley Parkway Malvern , PA

(004834) 19355 Phone: (610) 993-0911


FAX: (610) 993-0922

Transportation Resource Group, Inc, Main 204 N. George St. York , PA

(000185) 17401-1108 Phone: (717) 846-4660


FAX: (717) 846-4858

Transportation Resources Management Main 5495 Fawnbrook Lane Dublin , OH

(001974) 43017-8367 Phone: (614) 764-0243


FAX: (614) 764-1447

TransPro Consulting, LLC Main 11107 Indian Oaks Drive Tampa , FL

(007656) 33625-4921 Phone: (888) 703-9554 x4


Transys Services Co., LLC. Main 147 Washington Avenue Bellefonte , PA

(003708) 16823-8229 Phone: (814) 571-4950


FAX: (814) 383-4474

TranSystems Corporation d/b/a TranSystems Corporation Consultants Main 1717 Arch Street, Suite 700 Philadelphia , PA

(001370) 19103 Phone: (267) 546-0084


FAX: (215) 627-9113

Chicago 1051 Perimeter Drive, Suite 1025 Schaumburg , IL Richard Morsches

60173-9600 Phone: (847) 605-9600 x35231


FAX: (847) 605-9610

Kansas City 2400 Pershing Road Kansas City , MO Michael Priest

64108 Phone: (816) 329-8600 x28723


FAX: (816) 329-8601

Philadelphia 1717 Arch Street Philadelphia , PA Michael J. Cuddy, PE

19103 Phone: (267) 546-0084


FAX: (215) 627-9113

Pittsburgh 615 Epsilon Drive Pittsburgh , PA Ron Heil

15238 Phone: (412) 963-6858

FAX: (412) 963-1656

York 220 St. Charles Way York , PA Richard Schieler

17402 Phone: (717) 854-3861

FAX: (717) 843-7056

Youngstown 39 W. McKinley Way Youngstown , OH James Fisher

44514 Phone: (330) 726-5316


FAX: (330) 757-7799

Trant Corporation Main 11279 Perry Highway Wexford , PA

(002534) 15090 Phone: (724) 935-7900


FAX: (724) 935-6060

Trauner Consulting Services, Inc. Main 1617 JFK Boulevard Philadelphia , PA

(000055) 19103 Phone: (215) 814-6400 x6408


FAX: (215) 814-6440

TRC Engineers, Inc. Main 333 Route 46 West Mountain Lakes , NJ

(000362) 07046 Phone: (973) 402-9900 x119


FAX: (973) 402-9910

TRC Engineers, Inc. Main 16000 Commerce Parkway Mount Laurel , NJ

(001293) 08054 Phone: (856) 273-1224 x303


FAX: (856) 273-9244

Delaware Valley Office 16000 Commerce Parkway Mount Laurel , NJ George Koch

08054-2291 Phone: (856) 273-1224


FAX: (856) 273-9244

Harrisburg Area Office Commerce Business Park Harrisburg , PA Steve Karl

17110 Phone: (717) 671-6430


FAX: (717) 671-6431

Lehigh Valley Office 5050 West Tilghman Street Allentown , PA Donald Habick

18104 Phone: (610) 530-9481


FAX: (610) 530-9482

Philadelphia 1500 Market Street Philadelphia , PA Mitchell Bormack, P.G.

19102-2100 Phone: (215) 246-3447


FAX: (215) 665-5748

Pittsburgh Area Office 1036 Corporate Drive Export , PA Scott T. Gallaher

15632-8905 Phone: (724) 325-7483


FAX: (724) 325-4854

TRC Garrow Associates Inc. Main 9056 Chevrolet Drive Ellicott City , MD

(003839) 21042 Phone: (410) 465-7927


FAX: (410) 465-7535

TREC Group, Inc Main 536 Baltimore Pike Springfield , PA

(005948) 19064 Phone: (610) 328-6465 x223


FAX: (610) 328-3716

TreCom Systems Group, Inc. Main 370 Reed Road Broomall , PA

(005800) 19008 Phone: (717) 612-9560


FAX: (717) 612-1689

TRI Environmental, Inc. Main 9063 Bee Caves Road Austin , TX

(004225) 78733 Phone: (512) 263-2101 x133


FAX: (512) 263-2558

Tri-State Design and Development, Inc. Main 9 East Main Street Carnegie , PA

(000173) 15106-2455 Phone: (412) 276-2219


FAX: (412) 276-8148

Tri-State Laboratories, Inc. Main 2870 Salt Springs Road Youngstown , OH

(001600) 44509 Phone: (330) 797-8844


FAX: (330) 797-3264

TSL 2870 Salt Springs Road Youngstown , OH Bari Lateef

44509 Phone: (330) 518-7172


FAX: (330) 797-3264

Tri-State Reprographics, Inc. Main 907 Penn Avenue Pittsburgh , PA

(003247) 15122 Phone: (412) 281-3538


FAX: (412) 281-3344

Tri-State Traffic Data, Inc Main 184 Baker Road Coatesville , PA

(001061) 19340 Phone: (610) 466-1469


FAX: (610) 466-1470

Triad Engineering, Inc. Main 1075D Sherman Avenue Hagerstown , MD

(004034) 21740 Phone: (301) 797-6400


FAX: (301) 797-2424

Ashburn, Virginia 21641 Beaumeade Circle Ashburgn , VA Brian Maguire

20147 Phone: (703) 729-3456


FAX: (703) 729-3459

Athens, Ohio 1005 East Street Athens , OH Dane Ryan

45701 Phone: (304) 400-9022


FAX: (740) 249-4305

Hagerstown, Maryland 1075-D Sherman Avenue Hagerstown , MD Brooke Wenger

21740 Phone: (301) 797-6400 x242


FAX: (301) 797-2424

Morgantown, West Virginia 219 Hartman Run Road Morgantown , WV Lauren Nelson

26505 Phone: (304) 296-2562


FAX: (304) 296-8739

Pittsburgh, Pennsylvania 500 Bursca Drive Pittsburgh , PA Gina Bell

15017 Phone: (412) 257-1325


FAX: (412) 257-1329

St. Albans, West Virginia 4980 Teays Valley Road Scotts Depot , WV Dane Ryan

25560 Phone: (304) 755-0721


FAX: (304) 755-1880

Winchester, Virginia 200 Aviation Drive Winchester , VA Beth Carpenter

22602 Phone: (540) 667-9300


FAX: (540) 667-2260

Triad Strategies, LLC Main 116 Pine Street Harrisburg , PA

(003206) 17101 Phone: (717) 238-2970


FAX: (717) 238-2390

Triad Surveys, Inc. Main 485 Toledo Drive Lower Burrell , PA

(005906) 15068-3358 Phone: (724) 337-1529


FAX: (724) 337-1539

Triangle Aerial Surveys, Inc. Main 7718 Six Forks Road Suite 200 Raleigh , NC

(003656) 27615-5072 Phone: (919) 787-8654


FAX: (919) 787-7690

Trident Environmental Consultants, LLC Main 1856 ROUTE 9 TOMS RIVER , NJ

(004342) 08755 Phone: (732) 818-8699


FAX: (732) 818-3744

TriLine Associates, Inc. Main 400 Technology Drive, Suite 100 Canonsburg , PA

(000104) 15317 Phone: (724) 514-9000 x133


FAX: (724) 514-9090

Trinity Consultants, Inc Main 1406 Westover Road Yardley , PA

(000842) 19067-1940 Phone: (215) 736-1406


FAX: (215) 428-1407

Tritech Resources, Inc. Main 313 West LIberty Street, Suite 1 Lancaster , PA

(004843) 17603 Phone: (717) 397-9037


FAX: (717) 397-9098

TRO Consultants, LLC Main 1305 Rachel Lane Downingtown , PA

(007189) 19335 Phone: (610) 269-3107


FAX: (610) 269-3107

Trowbridge & Wolf, LLP Landscape Architects & Planners Main 1001 West Seneca Street Ithaca , NY

(003564) 14850 Phone: (607) 277-1400


FAX: (607) 277-6092

TRS Staffing Solutions Main 1400 N. Porvidence Road Media , PA

(003237) 19063 Phone: (484) 448-2503


FAX: (484) 448-2506

Trumbull Corporation Main 225 North Shore Drive Pittsburgh , PA

(000030) 15212 Phone: (412) 807-2000


FAX: (412) 807-2011

TTI Environmental, Inc. Main 9 East Stow Rd. Marlton , NJ

(001757) 08053 Phone: (856) 985-8800


FAX: (856) 985-9200

Tuck Mapping Solutions, Inc. Main 4632 Aerial Way Big Stone Gap , VA

(001432) 24219 Phone: (276) 523-4669


FAX: (276) 523-4673

Turner Historical Consulting Services LLC Main 3359 Ainslie Street Philadelphia , PA

(007675) 19129-1423 Phone: (443) 416-1309


Tusick & Associates Architects, Inc. Main 21 Windsor Road Pittsburgh , PA

(006318) 15215-1811 Phone: (412) 781-8896 x1


FAX: (412) 781-6947

TUV Rheinland Industrial Solutions, Inc. Main 8181 Broadmoor, S.E. Caledonia , MI

(002266) 49316-9509 Phone: (616) 748-0208 x1127


FAX: (724) 378-3940

Pittsburgh Office 100 Industrial Boulevard Aliquippa , PA Michaelene O'Neill

15001 Phone: (724) 378-3900 x1310


FAX: (724) 378-3940

Tyree Environmental Corp Main 208 Route 109 Farmingdale , NY

(005365) 11735 Phone: (631) 249-3150


FAX: (631) 249-3158

T3 Global Strategies, Inc. Main 10 Emerson Lane , Suite 807 Bridgeville , PA

(000471) 15017 Phone: (412) 221-2003


FAX: (412) 221-2004

T3 Global Strategies, Inc. 417 Blacklatch Lane Camp Hill , PA Doug Davis

17011 Phone: (717) 612-9467


FAX: (717) 612-9467

U & S Engineers, P.C. Main 2 Milkhouse Lane Lambertville , NJ

(004729) 08530-3531 Phone: (609) 516-3059


FAX: (609) 397-0959

U. S. Filter Operating Services, Inc. Main Airside Business Park Moon Township , PA

(001301) 15108 Phone: (814) 231-2170 x231


FAX: (814) 231-2174

U.S. Construction Group, Inc. Main 6100 Henry Ave Philadelphia , PA

(006322) 19128 Phone: (267) 571-9222


FAX: (215) 716-1175

U.S. Cost Incorporated Main 1200 Abernathy Road NE Atlanta , GA

(005731) 30328 Phone: (770) 481-1600


FAX: (770) 481-1640

DALLAS 7800 N. Stemmons Freeway Dallas , TX Trina Freeman

75247 Phone: (214) 540-5400


DC 201 12th St. Suite 502 Arlington , VA Steve Curran

22202 Phone: (703) 415-0835

LA 400 Continental Boulevard El Segundo , CA Eugenie LeRoux

90245 Phone: (424) 646-7533


MIAMI 12550 Biscayne Blvd Miami , FL Patrick Pedigo

33181 Phone: (786) 953-7817


NYC 116 W. 23rd Street, Suite 500 New York City , NY Gillian Higgins

10011 Phone: (646) 375-2182 x2197

U.S. International Services Ltd. Main 113 Kresson Gibbsboro Road Voorhees , PA

(005336) 08043 Phone: (856) 346-0747


FAX: (856) 346-9529

Underground Services, Inc., DBA SoftDig Main 24 Hagerty Blvd., Suite 11 West Chester , PA

(000187) 19382 Phone: (610) 738-8762 x2114


FAX: (610) 696-7864

Underground Services, Inc. New York 10 Adler Drive East Syracuse , NY Brian MacVean

13057 Phone: (877) 763-8344

Underground Services, Inc.,a.k.a.SoftDIg TX 20770 Hwy 281 North #108 San Antonio , TX Jim Witten

78258-7500 Phone: (877) 763-8344

Uni-Tec Consulting Engineers, Inc. Main 2007 Cato Avenue State College , PA

(000198) 16801-2765 Phone: (814) 238-8223


FAX: (814) 238-7808

United Appraisal Services LLC Main 438 South Main Street Pittsburgh , PA

(004958) 15220 Phone: (412) 928-2200 x104


FAX: (412) 928-3800

United Testing of PA, Inc. T/A United Inspection Services Main 1588 center avenue jim thorpe , PA

(003123) 18229 Phone: (570) 325-3293


FAX: (570) 325-3687

Universal Ensco Incorporated Main 601 Technology Drive, Suite 300 Canonsburg , PA

(005970) 15317 Phone: (724) 745-1557 x6093


Universal Field Services, Inc. Main 6666 S. Sheridan Road Tulsa , OK

(000089) 74133-1763 Phone: (918) 494-7600


FAX: (918) 494-7650

Universal Surveying and Stakeout t/a UTEK Main 39 East Cherry Rd Quakertown , PA

(004725) 18951 Phone: (215) 536-7570 x105


FAX: (215) 536-6511

University of Pittsburgh Main 1710 Cathedral of Learning Pittsburgh , PA

(002259) 15260 Phone: (412) 624-1604


FAX: (412) 624-1606

Uplift, Inc. Personnel Services Main 5070 Parkside Avenue Philadelphia , PA

(002783) 19131-4747 Phone: (215) 222-8763 x11


FAX: (215) 222-0405

Upper Darby Township Main Upper Darby Township Upper Darby , PA

(003723) 19082-3135 Phone: (610) 734-7635


FAX: (610) 734-7775

Urban Design Associates, Ltd Main 707 Grant Street Pittsburgh , PA

(006119) 15219 Phone: (412) 263-5200 x4052


FAX: (412) 263-5202

Urban Engineers of Erie, Inc. Main 1319 Sassafras Street Erie , PA

(000151) 16501-1720 Phone: (814) 453-5702


FAX: (814) 453-2020

Urban Engineers, Inc. Main 530 Walnut Street Philadelphia , PA

(000037) 19106-3685 Phone: (215) 922-8080


FAX: (215) 922-8082

Urban Partners Main 829 Spruce Street Philadelphia , PA

(006016) 19107 Phone: (215) 829-1901


FAX: (215) 829-1908

Urban Redevelopment Authority of Pittsburgh Main 200 Ross Street Pittsburgh , PA

(003033) 15219-2014 Phone: (412) 255-6641


FAX: (412) 255-6678

Urban Research and Development Corporation Main 28 West Broad Street Bethlehem , PA

(005994) 18018 Phone: (610) 865-0701


FAX: (610) 868-7613

Urban Settlement Services, LLC Main 1801-15 Centre Avenue Pittsburgh , PA

(003703) 15219 Phone: (412) 325-7046 x212


FAX: (412) 325-7051

Urbitran Associates Inc. Main 150 River Road Montville , NJ

(000485) 07045 Phone: (973) 299-2910 x245


FAX: (973) 299-0347

Scranton 538 Spruce Street Scranton , PA Gerald Calpin

18503 Phone: (570) 961-1413


FAX: (570) 961-1213

URS Corporation Main 335 Commerce Drive Fort Washington , PA

(000210) 19034-2623 Phone: (215) 367-2505


URS Corporation Main One Gateway Center, 13 West Pittsburgh , PA

(000309) 15222 Phone: (412) 503-4700


FAX: (412) 503-4701

URS Corporation Akron OH 564 White Pond Drive Akron , OH Mike Burgess

(000210) 44320-1100 Phone: (330) 836-9111


FAX: (330) 836-9115

Burlington NJ 437 High Street Burlington , NJ Steve Tull

08016 Phone: (609) 386-5444


FAX: (609) 386-6994

Fort Washington 335 Commerce Drive Fort Washington , PA Alex Houseal

19034-2623 Phone: (215) 367-2500


FAX: (215) 390-2110

Harrisburg 4507 North Front Street Harrisburg , PA Shawn Reppert

17110 Phone: (717) 635-7901 x7935


FAX: (717) 635-7902

Hunt Valley 4 North Park Drive Hunt Valley , MD Mike Dougherty

21030 Phone: (410) 785-7220


FAX: (410) 785-6818

Newark DE Iron Hill Corporate Center Newark , DE Tom DeLorimier

19713 Phone: (302) 781-5900


FAX: (302) 781-5901

Philadelphia 8 Penn Center Philadelphia , PA Joe Tursi

19103 Phone: (215) 587-9000


FAX: (215) 587-0668

Pittsburgh Foster Plaza 4 Pittsburgh , PA Tom Bice

15220 Phone: (412) 503-4700


FAX: (412) 503-4701

USA Environmental Management, Inc. Main 8600 W. Chester Pike, Suite 103 Upper Darby , PA

(001636) 19082 Phone: (610) 449-9903


FAX: (609) 656-8103

Utility Land Company, Inc. Main 2525 East Royalton Road Broadview Hts. , OH

(003278) 44147 Phone: (440) 838-8130


FAX: (440) 838-8680

Utility Land Company 39 W. McKinley Way Poland , OH Iain Crouch

44514 Phone: (440) 838-8130


V E Engineering Inc. Main 503 Bridge Street, Suite 112 New Cumberland , PA

(000020) 17070-1972 Phone: (717) 774-5260


FAX: (717) 774-5269

Hunt Valley, MD 517 Ensemble Court Hunt Valley , MD Beatrice Walters

21030 Phone: (800) 832-8721


FAX: (866) 283-5698

Valley Forge Laboratories, Inc. Main 6 Berkeley Road Devon , PA

(000192) 19333 Phone: (610) 688-8517


FAX: (610) 688-8143

Van Cleef Engineering Associates Main 501 North Main Street Doylestown , PA

(000279) 18901 Phone: (908) 359-8291 x143


FAX: (908) 359-1580

Berks County Office 4 Wellington Boulevard Wyonmissing , PA Brian Focht

19610 Phone: (610) 670-6630


FAX: (610) 670-4603

Northampton County (Lehigh Valley) Office 520 North New Street Bethlehem, PA 18018 , PA John Barbaz

18018 Phone: (610) 332-1772


FAX: (610) 332-1771

Van Note-Harvey Associates, P.C. Main 2600 Philmont Avenue Huntingdon Valley , PA

(000623) 19006-5308 Phone: (215) 947-7071


FAX: (215) 947-7072

Vanasse Hangen Brustlin, Inc. Main 477 MCLAWS CIRCLE WILLIAMSBURG , VA

(002396) 23185-6316 Phone: (757) 220-0500 x201


FAX: (757) 220-8544

Vance & Renz, LLC Main 606 Wayland Place State College , PA

(007210) 16803-1446 Phone: (814) 231-8155


FAX: (814) 231-8155

VanDemark & Lynch, Inc. Main 4305 Miller Road Wilmington , DE

(004150) 19899 Phone: (302) 764-7635 x109


FAX: (302) 764-4170

VantagePoint Associates, Inc. Main 1500 Walnut Street Philadelphia , PA

(006984) 19102 Phone: (215) 731-1000 x15


FAX: (215) 731-1070

Vector Corrosion Technologies, Inc. Main 103 Warlington Circle McMurray , PA

(005837) 15317 Phone: (724) 941-2096


FAX: (724) 942-4456

VEETech King of Prussia, P.C. Main 630 Freedom Business Center King of Prussia , PA

(003594) 19406 Phone: (610) 768-7706


FAX: (610) 768-7701

VEETech P.C. 113 Centrwest Court Cary , NC Amit Sarkar, P.E.

27513 Phone: (919) 388-0037 x3


FAX: (919) 388-0038

Vernon Land Use, LLC Main 1490 Armitage Way Mechanicsburg , PA

(006484) 17050 Phone: (717) 695-4840


Vertech International Inc. Main 420 station road quakertown , PA

(003226) 18951 Phone: (215) 529-0300


FAX: (215) 529-0469

Vibra-Tech Engineers, Inc. Main 109 E. First Street Hazleton , PA

(000340) 18201 Phone: (570) 455-5861


FAX: (570) 455-0626

Eastern PA 109 E. First Street Hazleton , PA Douglas Rudenko, PG

18201 Phone: (570) 455-5861


FAX: (570) 455-0626

Western PA 359 Northgate Drive Warrendale , PA Keith Pucalik

15086 Phone: (724) 933-7620


FAX: (724) 933-7630

Vickerman & Associates, LLC Main 3217 Fowlers Lake Road Williamsburg , VA

(005691) 23185-7506 Phone: (757) 345-2560


FAX: (877) 794-3507

Victor Carvajal d/b/a/ Vicato Enterprises Main 11 Crestview Drive Sinking Spring , PA

(005763) 19608 Phone: (717) 587-6833


FAX: (610) 678-8425

Victor P. Regola and Associates, Inc. Main 402 Clawson Avenue Youngwood , PA

(004325) 15697 Phone: (724) 925-6440


FAX: (724) 925-8344

VITETTA Group, Inc. Main The Philadelphia Naval Business Center Philadelphia , PA

(002018) 19112-1301 Phone: (215) 218-4747


FAX: (215) 218-4740

Vitillo Engineering, Inc. Main 150 D Love Road Reading , PA

(000320) 19607 Phone: (610) 796-1012 x207


FAX: (610) 775-2258

VJ Associates of New Jersey Inc. Main 1090 King Georges Rd Edison , NJ

(006009) 08837 Phone: (732) 661-9600


FAX: (732) 661-9603

Volkert, Inc. Main 3809 Moffett Road Mobile , AL

(008333) 36618 Phone: (703) 642-8100


FAX: (703) 642-8106

Vollmer Associates LLP Main 421B McFarlan Road Kennett Square , PA

(000058) 19348-2412 Phone: (610) 444-6522


FAX: (610) 444-1698

Aston 4513 Pennell Road Aston , PA Brian Bolender

19014-3020 Phone: (610) 494-3636


FAX: (610) 494-1187

Volz Environmental Services, Inc. Main 1200 Gulf Lab Road Pittsburgh , PA

(007629) 15238 Phone: (412) 826-8480


FAX: (412) 826-8488

Vortec Communications, Inc Main 10 Enterprise Drive Carbondale , PA

(001950) 18407 Phone: (570) 282-6877


FAX: (570) 282-1426

Vortex Environmental, Inc. Main 521 Beaver Valley Pike Lancaster , PA

(006475) 17602-1601 Phone: (717) 509-3934


FAX: (717) 509-2789

VSI Sales, LLC Main 410 Blackstone Lane Mars , PA

(003611) 16046 Phone: (724) 625-4061


FAX: (724) 625-4088

W. Blazer Holdings, Inc. Main 650 Smithfield Street Pittsburgh , PA

(007753) 15222 Phone: (855) 455-9559


FAX: (412) 291-2923

W.E.C. Engineers, Inc. Main 1370 Washington Pike Bridgeville , PA

(000017) 15017 Phone: (412) 257-8774


FAX: (412) 257-8815

W.J. Castle, P.E. & Associates, P.C. Main 1345 Route 38 West Hainesport , NJ

(000070) 08036 Phone: (609) 261-2268


FAX: (609) 261-3422

Wade-Trim/Associates, Inc. Main 650 Smithfield Street, Suite 2005 Pittsburgh , PA

(002481) 15222 Phone: (412) 454-5566


FAX: (412) 454-9001

Cleveland 1100 Superior Avenue Cleveland , OH Bonnie Teeuwen

44114 Phone: (216) 363-0300 x12126


FAX: (216) 363-0303

Taylor 25251 Northline Road Taylor , MI Steve Gravlin

48180 Phone: (734) 947-9700 x1245


FAX: (734) 947-9726

Wallace & Pancher , Inc. Main 2371 Maria Lane Hermitage , PA

(000382) 16148 Phone: (724) 981-0155


FAX: (724) 981-0156

Wallace Roberts & Todd, LLC Main 1700 Market Street Philadelphia , PA

(001906) 19103 Phone: (215) 732-5215


FAX: (215) 732-2551

Wallace, Montgomery & Associates, LLP Main 110 West Road Towson , MD

(006063) 21204 Phone: (410) 494-9093 x5160


FAX: (410) 825-5714

Walter B. Satterthwaite Associates, Inc. d/b/a Brickhouse Environmental Main 515 South Franklin Street West Chester , PA

(005325) 19382 Phone: (610) 692-5770


FAX: (610) 692-8650

Walter Kulash, d/b/a Walter Kulash, Public-Interest Traffic Consultant Main 720 Gamewell Avenue Maitland , FL

(006151) 32751 Phone: (407) 491-9888


Walters Appraisal Services, Inc Main 601 N. Front Street Harrisburg , PA

(004780) 17101 Phone: (717) 234-0540


FAX: (717) 901-0541

Washington Group International, Inc. Main Washington Group International, Inc. Princeton , NJ

(000374) 08540 Phone: (609) 720-2000


FAX: (609) 720-2259

Washington Infrastructure Services Inc. Main 510 Carnegie center Boulevard 05P1 Princeton , NJ

(000291) 08540 Phone: (609) 720-2000


FAX: (609) 720-2900

Waste-Tron of Maryland, Inc. Main 3922 Vero Road Baltimore , MD

(000729) 21227 Phone: (410) 536-4200


FAX: (410) 536-4204

WATERWAYS ENGINEERING TECHNOLOGY (WET) Main WATERWAYS ENGINEERING TECHNOLOGY (WET) Uniontown , PA

(000244) 15401 Phone: (724) 438-5552


FAX: (724) 438-7934

Weiss Consulting, Inc. Main 1620 S 10th Street Philadelphia , PA

(002987) 19148 Phone: (215) 389-9900


FAX: (215) 389-9905

Weiss Consulting, LLC Main 1620 S. 10th Street Philadelphia , PA

(004562) 19148-1133 Phone: (215) 389-9900


FAX: (215) 389-9905

Weller & Associates, Inc. Main 1395 West Fifth Ave. Columbus , OH

(003948) 43212 Phone: (614) 485-9435


FAX: (614) 485-9439

Wells Appel, Inc. Main 1516 Locust Street Philadelphia , PA

(005870) 19102 Phone: (215) 731-1577 x210


FAX: (215) 731-1580

Wendel Duchscherer Architects & Engineers, P.C. Main 140 John James Audubon Parkway Amherst , NY

(004198) 14228 Phone: (716) 688-0766


FAX: (716) 625-6825

Wentz & Webster, LLC Main 2410 Route 405 Muncy , PA

(006147) 17756 Phone: (570) 940-0333


Weston Solutions, Inc. (formerly known as Roy F. Weston, Inc.) Main 1400 Weston Way West Chester , PA

(000888) 19380 Phone: (610) 701-7557


FAX: (610) 701-7401

Corporate Headquarters 1400 Weston Way West Chester , PA Evan Andrews

19380 Phone: (610) 701-7557


FAX: (610) 701-7400

Philadelphia Office 1500 Market Street Philadelphia , PA Ed Hicks

19102 Phone: (215) 841-2000

Whale Publishing Main 139 Lincoln Avenue Harrisburg , PA

(000298) 17111-4154 Phone: (717) 564-6371


FAX: (717) 564-4826

Wharton Surety Consultants, LLC Main 1010 SPRING MILL AVENUE CONSHOHOCKEN , PA

(002648) 19428 Phone: (610) 828-4240


FAX: (610) 828-4415

White Haven Area Community Library Main P.O. Box 57 White Haven , PA

(003867) 18661 Phone: (570) 443-8776


FAX: (570) 443-8776

Whitehouse Group, Inc. Main 100 West Cypress Creek Rd Fort Lauderdale , FL

(004803) 33309 Phone: (954) 482-8409


FAX: (866) 846-5875

Whitman, Requardt and Associates, LLP Main 801 South Caroline Street Baltimore , MD

(000059) 21231-5211 Phone: (724) 779-7940 x245


FAX: (724) 779-7943

Philadelphia 1500 Market Street Philadelphia , PA Dennis Hasson

19102 Phone: (215) 568-4700


FAX: (215) 568-4722

Pittsburgh Region 300 Seven Fields Boulevard Seven Fields , PA Eric C. Meyer

16046 Phone: (724) 779-7940 x245


FAX: (724) 779-7943

York 2200 South George Street York , PA Rod Hill, P.E.

17403 Phone: (717) 741-5057


FAX: (717) 741-5124

Whitney, Bailey, Cox & Magnani, LLC Main One Sterling Place Mechanicsburg , PA

(000088) 17050-0000 Phone: (717) 691-4708


FAX: (717) 691-4749

Baltimore 849 Fairmount Avenue Baltimore , MD Leon J. Kriebel, PE, President

21286 Phone: (410) 512-4500


FAX: (410) 324-4100

Harrisburg 100 Sterling Parkway Mechanicsburg , PA Joseph L. O'Neil, PE

17050 Phone: (717) 691-4708


FAX: (717) 691-4749

Philadelphia 1004 W. 9th Avenue King of Prussia , PA John A. Prybella, PE

19406 Phone: (484) 751-5045


FAX: (484) 751-5047

Pittsburgh 600 Bursca Drive Pittsburgh , PA Mike Wuerthele PE

15017 Phone: (412) 221-5385


FAX: (412) 221-6373

Whittemore And Haigh Engineering Inc. Main Whoittemore and Haigh Engineering Inc. Sinking Spring , PA

(004075) 19608 Phone: (610) 913-6820


FAX: (610) 286-1679

WHM Consulting, Inc. Main 2525 Green Tech Drive Suite B State College , PA

(004850) 16803 Phone: (814) 689-1650 x134


FAX: (814) 689-1557

WHM Solutions, Inc. Main 2525 Green Tech Drive State College , PA

(002176) 16803 Phone: (814) 689-1650


FAX: (814) 689-1557

Widmer Engineering Inc. Main 806 Lincoln Place Beaver Falls , PA

(000016) 15010-4557 Phone: (724) 847-1696 x11


FAX: (724) 847-0419

Connellsville 225 W. Crawford Avenue Connellsville , PA David H. Widmer

15425 Phone: (724) 847-1696 x11


FAX: (724) 847-0419

Washington 61 E. Wheeling Street Washington , PA David H. Widmer

15301 Phone: (724) 847-1696 x11


FAX: (724) 847-0419

Wilbur Smith Associates, Inc. Main 501 Martindale Street Pittsburgh , PA

(000108) 15212 Phone: (412) 323-8101


FAX: (412) 323-8127

Harrisburg Office 2805 Old Post Road Harrisburg , PA David Marchese, P.E.

17110 Phone: (717) 541-4001 x4002


FAX: (717) 541-4050

Wildlife Specialists LLC Main 2785 Hills Creek Road Wellsboro , PA

(007044) 16901 Phone: (570) 376-2255


Wilkinson & Associates, Inc. Main The Commons at Valley Forge Phoenixville , PA

(003229) 19460 Phone: (610) 415-1220 x205


FAX: (610) 415-1224

William G. Major Associates, Inc. Main 110 Mill Street Bristol , PA

(003636) 19007-4807 Phone: (215) 785-3288


FAX: (215) 788-0790

WILLIAM G. MOORE & SON, INC. OF DELAWARE Main 4459 AMBOY ROAD SUITE#4 STATEN ISALND , NY

(001033) 10312 Phone: (718) 227-2990


FAX: (718) 227-6146

William J. Green & Associates Main Three Gateway Center, Suite 2300 Pittsburgh , PA

(000286) 15222 Phone: (412) 281-5555


FAX: (412) 281-5567

William J. Green & Associates 130 State Street Harrisburg , PA Patricia Wood

17101 Phone: (717) 236-3700


FAX: (717) 236-3770

Williamsburg Environmental Group, Inc. Main 5209 Center Street Williamsburg , VA

(007249) 23188 Phone: (757) 220-6869


FAX: (757) 229-4507

wilson consulting Main 642 observatory drive lewisberry , PA

(000439) 17339 Phone: (717) 938-2530


FAX: (717) 938-0298

Wilson Consulting Group, PC Main 100 Old Schoolhouse Lane Mechanicsburg , PA

(002071) 17055 Phone: (717) 591-3070 x10


FAX: (717) 591-3071

Winslow Engineering, Inc. Main PO Box 1390 Hermitage , PA

(001691) 16148 Phone: (724) 962-7816


FAX: (724) 962-7815

Winsor Associates Main 101 Cherry Lane, Box 432 Ardmore , PA

(000322) 19003-0432 Phone: (434) 977-1097


FAX: (434) 977-2031

Winters Business Corporation Main 249 Letherman Bridge Road Scenery Hill , PA

(000353) 15360 Phone: (724) 945-5416


WinterSpring, LLC dba American Native Nursery Main 2191 Hillcrest Rd. Quakertown , PA

(007792) 18951 Phone: (855) 752-6862


FAX: (855) 752-6862

Wiss, Janney, Elstner Associates, Inc. Main 330 Pfingsten Road Northbrook , IL

(001889) 60062-2095 Phone: (847) 272-7400


FAX: (847) 291-9599

WJE - Princeton 14 Washington Rd. Princeton Junction , NJ Glenn Rentschler

08550-1013 Phone: (609) 799-7799


FAX: (609) 799-7088

Witman Engineers & Consultants, LLC Main 3417 Main Street Morgantown , PA

(005224) 19543 Phone: (610) 913-5680 x12


FAX: (610) 913-5682

Wm. F. Hill & Assoc., Inc. Main 207 Baltimore Street Gettysburg , PA

(006584) 17325 Phone: (717) 334-9137


FAX: (717) 334-0714

WMMC, Incorporated Main 602 Parkway View Drive Pittsburgh , PA

(000788) 15205 Phone: (412) 788-2600


FAX: (412) 788-2608

Wolfpack, Inc. Main 620 Chestnut Street Philadelphia , PA

(000423) 19106 Phone: (215) 574-0707


FAX: (215) 574-0324

Woolpert LLP Main 409 E. Monument Avenue Dayton , OH

(001341) 45402-1261 Phone: (937) 461-5660 x357


FAX: (937) 461-0743

Woolpert, Inc. Main 4454 Idea Center Boulevard Dayton , OH

(004191) 45430-1500 Phone: (937) 461-5660


FAX: (937) 461-0743

Woolpert, Inc. - Denver 116 Inverness Drive East Englewood , CO Layton Hobbs, CP, CMS

80112-5125 Phone: (303) 925-1400


FAX: (303) 925-1401

Woolpert, Inc. - Orlando 11315 Corporate Boulevard Orlando , FL Rex Cowden, CP, PSM

32817-8345 Phone: (407) 381-2192


FAX: (407) 384-1185

Word Work Communications Main 1101 South Broad Street Lansdale , PA

(003202) 19446 Phone: (215) 368-9355


FAX: (215) 368-9366

WRS Infrastructure & Environment, Inc. Main 221 Hobbs Street Tampa , FL

(001550) 33619 Phone: (813) 684-4400 x206


FAX: (813) 684-9177

W2A Design Group (Wallace & Watson Associates, P.C.) Main 609 Hamilton Street, Suite 200 Allentown , PA

(006023) 18101 Phone: (610) 437-4450


FAX: (610) 437-2817

Yerkes Associates, Inc. Main PO Box 1568 West Chester , PA

(005089) 19380-0078 Phone: (610) 525-6200 x272


FAX: (610) 525-0248

Rosemont Rosemont Business Campus Rosemont , PA Patrick Spellman

19010 Phone: (610) 525-6200 x276


FAX: (610) 525-0248

Yost Strodoski Mears, Inc. Main 19 South Newberry Street York , PA

(006397) 17401 Phone: (717) 812-9959 x101


FAX: (717) 812-9769

Young & Company Main 1301 Derry Street Harrisburg , PA

(004355) 17104 Phone: (717) 234-2917


FAX: (717) 234-2919

YU & Associates, Inc. Main 611 River Drive, Center 3, 3rd Floor Elmwood Park , NJ

(003438) 07407-1325 Phone: (201) 791-0075


FAX: (201) 791-4533

Zeiders & Szajna, Inc. Main 785 North Franklin Street Chambersburg , PA

(003782) 17201-8766 Phone: (717) 263-2017


FAX: (717) 263-2068

Zion Breen & Richardson Associates, LLC Main 33 Imlaystown Road Imlaystown , NJ

(002011) 08526-0034 Phone: (609) 259-9555


FAX: (609) 259-0436

1Source Safety and Health, Inc. Main 140 South Village Ave, Suite 130 Exton , PA

(005827) 19341 Phone: (610) 524-5525 x14


FAX: (610) 524-0565

3DI Technologies, Inc. Main 28969 Information Lane Easton , MD

(001425) 21601 Phone: (410) 770-6000


FAX: (410) 820-5613

4ward Planning LLC Main 21 Lafayette Street Hopewell , NJ

(005619) 08525 Phone: (267) 480-7133


FAX: (866) 989-0021

82 Rents Inc Main 976 Pottstown Pike Chester Springs , PA

(002962) 19425 Phone: (610) 321-0282


FAX: (610) 321-0284

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