Certificate of Authorization Roster

2331

2RW CONSULTANTS, INC.

100 10TH STREET NE, SU. 202

CHARLOTTESVILLE

VA

22902

6/11

2503

A. EPSTEIN & SONS INT`L, INC.

600 W. FULTON STREET

CHICAGO

IL

60661

6/11

2403

A. MORTON THOMAS & ASSOCIATES, INC.

12750 TWINBROOK PKWY.

ROCKVILLE

MD

20852

6/10

1005

A.D. MARBLE & COMPANY, INC.

375 EAST ELM STREET SUITE 200

CONSHOHOCKEN

PA

19428

6/11

1004

A.R. ROSSI, INC.

256 MILFORD DRIVE

MIDDLETOWN

DE

19709

6/10

472

A.W. LOOKUP CORPORATION

10 EAST 6TH AVENUE SUITE #300

CONSHOHOCKEN

PA

19428

6/11

2870

AB Consultants, Inc.

9450 Annapolis Road

Lanham

MD

20706

6/11

2912

ABBA ENGINEERING, LLC

11201 SHARPTOWN RD

MARDELA SPRINGS

MD

21837

6/11

2055

ACCUDYNE SYSTEMS, INC.

134-B SANDY DRIVE

NEWARK

DE

19713

6/11

3150

Accumark, Inc.

9500 King Air Ct

Ashland

VA

23005

6/11

506

ACTION ENVIRONMENTAL SERVICE CORPORATION

501 SILVERSIDE ROAD

WILMINGTON

DE

19809

6/11

1073

ADAMA ENGINEERING, INC.

33 THE HORSESHOE

NEWARK

DE

19711

6/11

2167

ADAMS, REHMANN & HEGGAN ASSOCIATES, INC.

850 S. WHITE HORSE PIKE P.O. BOX 579

HAMMONTOWN

NJ

08037-2019

6/11

2880

ADEPTEVO, INC.

101 PINEWATER DR.

HARBESON

DE

19951

6/10

1027

ADTEK ENGINEERS, INC.

3251 OLD LEE HIGHWAY SUITE 405

FAIRFAX

VA

22030

6/11

697

ADVANCED GEOSERVICES CORP.

1055 ANDREW DRIVE SUITE A

WEST CHESTER

PA

19380

6/11

2658

AEC Engineering, Inc.

15 South 5th Street, Su. 400

Minneapolis

MI

55402

6/11

2501

AECOM TECHNICAL SERVICES, INC.

555 S. Flower Street, 37th Floor

Los Angeles

CA

90071

6/11

88

AECOM USA, INC.

605 THIRD AVENUE

NEW YORK

NY

10158

6/11

791

AECOM, INC.

TWO TECHNOLOGY PARK DRIVE

WESTFORD

MA

01886

6/11

2546

AFFILIATED ENGINEERING TECHNOLOGIES, INC.

5635 HORNING ROAD

PITTSBURGH

PA

15236

6/10

2869

AFFILIATED ENGINEERS, INC.

P.O. BOX 5620

MADISON

WI

53705

6/11

2818

AIR SYSTEMS ENGINEERING CO., INC.

P.O. BOX 4124

GREENVILLE

DE

19807

6/11

2320

AKENS ENGINEERING ASSOCIATES, INC.

219 EAST MAIN STREET

SHIREMANSTOWN

PA

17011

6/11

3262

AKER SOLUTIONS AMERICAS INC.

3600 BRIARPARK DRIVE

HOUSTON

TX

77042

6/11

3047

AKF GROUP LLC

1501 BROADWAY, SU. 700

NEW YORK

NY

10036

6/10

2315

ALARM ENGINEERING, INC.

2204 WEST ZION ROAD

SALISBURY

MD

21801

6/11

431

ALBERT KAHN ASSOCIATES, INC.

ALBERT KAHN BUILDING 7430 SECOND AVENUE

DETROIT

MI

48202-2798

6/11

3164

ALBRECHT ENGINEERING, INC.

721 EVESHAM AVENUE

BALTIMORE

MD

21212

6/11

979

ALDERSON ENGINEERING, INC.

407 LAKESIDE DRIVE

SOUTHAMPTON

PA

18966

6/11

3217

ALFRED BENESCH & COMPANY

PO BOX 1090 400 NORWEGIAN PLAZA

POTTSVILLE

PA

17901

6/11

2277

ALLEN & SHARIFF CORP.

7061 DEEPAGE DRIVE

COLUMBIA

MD

21045

6/11

3071

ALLIANCE ENGINEERING OF OREGON, INC.

2700 MARKET ST., NE

SALEM

OR

97301

6/11

2438

ALLIANCE STRUCTURAL ENGINEERS, INC.

8521 LEESBURG PK., SUITE 310

VIENNA

VA

22182

6/11

2014

ALLIED DESIGN ARCHITECTURAL & ENGINEERING GROUP, P.C.

100 S. PERSHING P.O. BOX 110

MORTON

IL

61550

6/11

2065

ALPHA CONSTRUCTION & ENGINEERING CORPORATION

21351 RIDGETOP CIRCLE SUITE 200

DULLES

VA

20166

6/11

253

ALPHA ENGINEERING INC.

P.O. BOX 669

BEAR

DE

19701-0669

6/11

3186

ALSTOM POWER INC.

1409 CENTERPOINT BLVD.

KNOXVILLE

TN

37932

6/11

3046

ALTRAN SOLUTIONS CORP.

CRANBURY PLAZA, #E 2525 ROUTE 130 SOUTH

CRANBURY

NJ

08512

6/10

2292

AMBROSE ENGINEERING, INC.

W66 N215 COMMERCE CT. SUITE 100

CEDARBURG

WI

53012

6/11

2984

AMDYNE CORPORATION

1403 MADISON PARK DR., SU. 200

GLEN BURNIE

MD

21061

6/11

2269

AMEC E & C SERVICES, INC.

1979 Lakeside Parkway, Suite 500

Tucker

GA

30084

6/11

2311

AMEC EARTH & ENVIRONMENTAL, INC.

ONE PLYMOUTH MEETING MALL SUITE 850

PLYMOUTH MEETING

PA

19462-1308

6/11

3006

Amer Industrial Technologies

100 Amer Rd., Bldg. 200

Wilmington

DE

19809

6/10

656

AMERICAN ENGINEERING & SURVEYING, INC.

224 East Main Street

Elkton

MD

21921

6/11

861

AMMANN & WHITNEY CONSULTING ENGINEERS, P.C.

96 MORTON STREET

NEW YORK

NY

10014

6/11

3108

AMSEC LLC

2829 GUARDIAN LANE

VIRGINIA BEACH

VA

23452

6/11

2535

ANDERSEN ENGINEERING ASSOCIATES, INC.

306 N. 5TH ST., 2ND FL.

PERKASIE

PA

18944

6/11

324

ANDREW W. BOOTH AND ASSOCIATES, INC.

1942 NORTHWOOD DRIVE

SALISBURY

MD

21801-7824

6/11

2827

Andrews, Hammock & Powell, Inc.

250 Charter Lane Suite 100

Macon

GA

31210

6/11

834

ANHOLT TECHNOLOGIES, INC.

440 CHURCH ROAD

AVONDALE

PA

19311

6/11

2406

APD ENGINEERING & ARCHITECTURE, PLLC

615 FISHERS RUN

VICTOR

NY

14564

6/11

856

APEX ENGINEERING INCORPORATED

27 WEST MARKET STREET

NEWPORT

DE

19804

6/11

699

APPLIED CONTROL ENGINEERING, INC.

700 CREEK VIEW ROAD

NEWARK

DE

19711

6/11

2803

APPLIED ENGINEERING GROUP, LTD.

7402 E. BROAD STREET

BLACKLICK

OH

43004

6/10

3094

APPLIED PAVEMENT TECHNOLOGY, INC.

115 W. MAIN ST., SU. 400

URBANA

IL

61801

6/11

2362

APPLIED TECHNOLOGY & MANAGEMENT, INC.

5550 NW 111th BLVD.

GAINESVILLE

FL

32653

6/11

2333

APPLIED WATER MANAGEMENT, INC.

2 Clerico Lane

Hillsborough

NJ

08844

6/11

2559

ARCADIS U.S., INC.

630 Plaza Drive Suite 200

Highlands Ranch

CO

80129

6/11

3129

ARCHITECTURAL DESIGN GUILD

2710 SUTTON BLVD.

ST. LOUIS

MO

63143

6/11


View All	Firm Name	CA License Number.	City	State

Firm License	Firm Name	Address	City	State	Zip	Expiration Date (m/yy)

2331	2RW CONSULTANTS, INC.	100 10TH STREET NE, SU. 202	CHARLOTTESVILLE	VA	22902	6/11


2503	A. EPSTEIN & SONS INT`L, INC.	600 W. FULTON STREET	CHICAGO	IL	60661	6/11


2403	A. MORTON THOMAS & ASSOCIATES, INC.	12750 TWINBROOK PKWY.	ROCKVILLE	MD	20852	6/10


1005	A.D. MARBLE & COMPANY, INC.	375 EAST ELM STREET SUITE 200	CONSHOHOCKEN	PA	19428	6/11


1004	A.R. ROSSI, INC.	256 MILFORD DRIVE	MIDDLETOWN	DE	19709	6/10


472	A.W. LOOKUP CORPORATION	10 EAST 6TH AVENUE SUITE #300	CONSHOHOCKEN	PA	19428	6/11


2870	AB Consultants, Inc.	9450 Annapolis Road	Lanham	MD	20706	6/11


2912	ABBA ENGINEERING, LLC	11201 SHARPTOWN RD	MARDELA SPRINGS	MD	21837	6/11


2055	ACCUDYNE SYSTEMS, INC.	134-B SANDY DRIVE	NEWARK	DE	19713	6/11


3150	Accumark, Inc.	9500 King Air Ct	Ashland	VA	23005	6/11


506	ACTION ENVIRONMENTAL SERVICE CORPORATION	501 SILVERSIDE ROAD	WILMINGTON	DE	19809	6/11


1073	ADAMA ENGINEERING, INC.	33 THE HORSESHOE	NEWARK	DE	19711	6/11


2167	ADAMS, REHMANN & HEGGAN ASSOCIATES, INC.	850 S. WHITE HORSE PIKE P.O. BOX 579	HAMMONTOWN	NJ	08037-2019	6/11


2880	ADEPTEVO, INC.	101 PINEWATER DR.	HARBESON	DE	19951	6/10


1027	ADTEK ENGINEERS, INC.	3251 OLD LEE HIGHWAY SUITE 405	FAIRFAX	VA	22030	6/11


697	ADVANCED GEOSERVICES CORP.	1055 ANDREW DRIVE SUITE A	WEST CHESTER	PA	19380	6/11


2658	AEC Engineering, Inc.	15 South 5th Street, Su. 400	Minneapolis	MI	55402	6/11


2501	AECOM TECHNICAL SERVICES, INC.	555 S. Flower Street, 37th Floor	Los Angeles	CA	90071	6/11


88	AECOM USA, INC.	605 THIRD AVENUE	NEW YORK	NY	10158	6/11


791	AECOM, INC.	TWO TECHNOLOGY PARK DRIVE	WESTFORD	MA	01886	6/11


2546	AFFILIATED ENGINEERING TECHNOLOGIES, INC.	5635 HORNING ROAD	PITTSBURGH	PA	15236	6/10


2869	AFFILIATED ENGINEERS, INC.	P.O. BOX 5620	MADISON	WI	53705	6/11


2818	AIR SYSTEMS ENGINEERING CO., INC.	P.O. BOX 4124	GREENVILLE	DE	19807	6/11


2320	AKENS ENGINEERING ASSOCIATES, INC.	219 EAST MAIN STREET	SHIREMANSTOWN	PA	17011	6/11


3262	AKER SOLUTIONS AMERICAS INC.	3600 BRIARPARK DRIVE	HOUSTON	TX	77042	6/11


3047	AKF GROUP LLC	1501 BROADWAY, SU. 700	NEW YORK	NY	10036	6/10


2315	ALARM ENGINEERING, INC.	2204 WEST ZION ROAD	SALISBURY	MD	21801	6/11


431	ALBERT KAHN ASSOCIATES, INC.	ALBERT KAHN BUILDING 7430 SECOND AVENUE	DETROIT	MI	48202-2798	6/11


3164	ALBRECHT ENGINEERING, INC.	721 EVESHAM AVENUE	BALTIMORE	MD	21212	6/11


979	ALDERSON ENGINEERING, INC.	407 LAKESIDE DRIVE	SOUTHAMPTON	PA	18966	6/11


3217	ALFRED BENESCH & COMPANY	PO BOX 1090 400 NORWEGIAN PLAZA	POTTSVILLE	PA	17901	6/11


2277	ALLEN & SHARIFF CORP.	7061 DEEPAGE DRIVE	COLUMBIA	MD	21045	6/11


3071	ALLIANCE ENGINEERING OF OREGON, INC.	2700 MARKET ST., NE	SALEM	OR	97301	6/11


2438	ALLIANCE STRUCTURAL ENGINEERS, INC.	8521 LEESBURG PK., SUITE 310	VIENNA	VA	22182	6/11


2014	ALLIED DESIGN ARCHITECTURAL & ENGINEERING GROUP, P.C.	100 S. PERSHING P.O. BOX 110	MORTON	IL	61550	6/11


2065	ALPHA CONSTRUCTION & ENGINEERING CORPORATION	21351 RIDGETOP CIRCLE SUITE 200	DULLES	VA	20166	6/11


253	ALPHA ENGINEERING INC.	P.O. BOX 669	BEAR	DE	19701-0669	6/11


3186	ALSTOM POWER INC.	1409 CENTERPOINT BLVD.	KNOXVILLE	TN	37932	6/11


3046	ALTRAN SOLUTIONS CORP.	CRANBURY PLAZA, #E 2525 ROUTE 130 SOUTH	CRANBURY	NJ	08512	6/10


2292	AMBROSE ENGINEERING, INC.	W66 N215 COMMERCE CT. SUITE 100	CEDARBURG	WI	53012	6/11


2984	AMDYNE CORPORATION	1403 MADISON PARK DR., SU. 200	GLEN BURNIE	MD	21061	6/11


2269	AMEC E & C SERVICES, INC.	1979 Lakeside Parkway, Suite 500	Tucker	GA	30084	6/11


2311	AMEC EARTH & ENVIRONMENTAL, INC.	ONE PLYMOUTH MEETING MALL SUITE 850	PLYMOUTH MEETING	PA	19462-1308	6/11


3006	Amer Industrial Technologies	100 Amer Rd., Bldg. 200	Wilmington	DE	19809	6/10


656	AMERICAN ENGINEERING & SURVEYING, INC.	224 East Main Street	Elkton	MD	21921	6/11


861	AMMANN & WHITNEY CONSULTING ENGINEERS, P.C.	96 MORTON STREET	NEW YORK	NY	10014	6/11


3108	AMSEC LLC	2829 GUARDIAN LANE	VIRGINIA BEACH	VA	23452	6/11


2535	ANDERSEN ENGINEERING ASSOCIATES, INC.	306 N. 5TH ST., 2ND FL.	PERKASIE	PA	18944	6/11


324	ANDREW W. BOOTH AND ASSOCIATES, INC.	1942 NORTHWOOD DRIVE	SALISBURY	MD	21801-7824	6/11


2827	Andrews, Hammock & Powell, Inc.	250 Charter Lane Suite 100	Macon	GA	31210	6/11


834	ANHOLT TECHNOLOGIES, INC.	440 CHURCH ROAD	AVONDALE	PA	19311	6/11


2406	APD ENGINEERING & ARCHITECTURE, PLLC	615 FISHERS RUN	VICTOR	NY	14564	6/11


856	APEX ENGINEERING INCORPORATED	27 WEST MARKET STREET	NEWPORT	DE	19804	6/11


699	APPLIED CONTROL ENGINEERING, INC.	700 CREEK VIEW ROAD	NEWARK	DE	19711	6/11


2803	APPLIED ENGINEERING GROUP, LTD.	7402 E. BROAD STREET	BLACKLICK	OH	43004	6/10


3094	APPLIED PAVEMENT TECHNOLOGY, INC.	115 W. MAIN ST., SU. 400	URBANA	IL	61801	6/11


2362	APPLIED TECHNOLOGY & MANAGEMENT, INC.	5550 NW 111th BLVD.	GAINESVILLE	FL	32653	6/11


2333	APPLIED WATER MANAGEMENT, INC.	2 Clerico Lane	Hillsborough	NJ	08844	6/11


2559	ARCADIS U.S., INC.	630 Plaza Drive Suite 200	Highlands Ranch	CO	80129	6/11


3129	ARCHITECTURAL DESIGN GUILD	2710 SUTTON BLVD.	ST. LOUIS	MO	63143	6/11