GSA Federal Acquisition Service
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E-mail: ncsccustomer.service@gsa.gov

MAS Multiple Award Schedule
Professional Services - Environmental Services
Category Description
562910REM Environmental Remediation Services Remediation services include site preparation, field investigation, conservation and closures, emergency response cleanup (ERC), underground storage tank/above-ground storage tank (UST/AST) removal, air monitoring, soil vapor extraction, stabilization/solidification, bio-venting, carbon absorption, containment, monitoring and/or reduction of hazardous waste sites, unexploded ordnance removal,and remediation-related laboratory testing (e.g., biological, chemical, physical, pollution and soil testing). Reclamation services include: creating new land from sea or riverbeds, wetland restoration, and restoring areas to a more natural state (e.g., after pollution, desertification, or salinization have made it unusable). Reclamation services include: creating new land from sea or riverbeds, wetland restoration, and restoring areas to a more natural state (e.g., after pollution, desertification, or salinization have made it unusable). Remediation services encompassing three (3) or more industries/NAICS codes, where the preponderance of work is at least 50% under NAICS 562910, should be solicited and performed under SIN 562910RMI.

NOTE: Services offered under this SIN shall not include any remediation/transportation/disposal of radioactive waste, asbestos and/or paint abatement, radon mitigation, or construction and architect-engineering services as set forth in FAR Part 36 (including construction, alteration or repair of buildings, structures, or other real property). This SIN does not include Davis-Bacon work as defined in FAR Subpart 22.4. Ordering agencies must ensure the work being required is not covered by the Davis-Bacon Act.
268 contractors

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3D ENVIROLOGICS LLC GS-10F-023CA 4349894223 EARLYSVILLE ,VA s/w/wo
A E H S INCORPORATED GS-10F-0227R 210-656-9300 SAN ANTONIO ,TX s/v
ADANTA, INC. GS-10F-041CA 707-709-8894 NAPA ,CA s/w/wo/ew/d/8a
ADVANCE 1 CLEANING SERVICES, INC. 47QRAA18D008U (207)873-1241 WATERVILLE ,ME s  
ADVANCED AIR ANALYSIS, INC. GS-00F-154GA (410)653-7676 PIKESVILLE ,MD s/d  
ADVANCED TECHNOLOGIES AND LABORATORIES (ATL) INTERNATIONAL, INC GS-00F-067CA 865-567-6793 GAITHERSBURG ,MD s/w/wo
AECOM TECHNICAL SERVICES, INC. GS-00F-188CA 210-296-2000 LOS ANGELES ,CA o
AEROSOL MONITORING & ANALYSIS 47QRAA19D0063 4106843327 HANOVER ,MD s/d
AEW ENGINEERING INC GS-10F-0519N (402)690-1422 OMAHA ,NE s/w/wo/ew/dv/d  
ALAMO ENVIRONMENTAL, INC. GS-00F-001HA 210-404-1220 SAN ANTONIO ,TX s/d
ALFRED BENESCH & COMPANY GS-10F-0181W 570-624-4266 CHICAGO ,IL o
ALISTO ENGINEERING GROUP, INC. GS-10F-0080M (925)279-5000 WALNUT CREEK ,CA s    
ALLIANT CORPORATION GS-10F-0110V 8653630726 KNOXVILLE ,TN s/dv
ALPHA FACILITIES SOLUTIONS, LLC 47QRAA20D000T 2106013190 SAN ANTONIO ,TX s/dv/d
ALPHA-OMEGA TRAINING AND COMPLIANCE INC GS-10F-0350Y 3214459845 COCOA ,FL s/v
AMERICAN COMPLIANCE TECHNOLOGIES, INC
(DBA: A-C-T ENVIRONMENTAL & INFRASTRUCTURE)
GS-00F-302DA (863)533-2000 BARTOW ,FL s  
ANCHOR QEA, LLC GS-10F-0590N 206-287-9130 SEATTLE ,WA o
APPLIED ENVIROSOLUTIONS INC GS-10F-0324S 480-839-7000 TEMPE ,AZ s/w/wo/ew/d
APPLIED INTELLECT GS-10F-026BA 571-510-0862 WEXFORD ,PA s/d/8a
ARC ENVIRONMENTAL, INC. GS-10F-0007S 410-659-9971 BALTIMORE ,MD s
ARM ENVIRONMENTAL SERVICES INC GS-10F-0201N 8037833314 COLUMBIA ,SC s
ARS ALEUT REMEDIATION LLC GS-00F-300GA (240)938-7461 PORT ALLEN ,LA s/d/8a  
ATC GROUP SERVICES LLC GS-10F-0458N (720)837-5628 LAFAYETTE ,LA o  
ATI, INC. 47QRAA18D00E9 410-992-3424 COLUMBIA ,MD s/d/8a
ATKINS NORTH AMERICA, INC. 47QRAA21D002Z (813)281-4430 TAMPA ,FL o    
ATKINS NORTH AMERICA, INC. GS-00F-007AA 813-281-4430 TAMPA ,FL o
AVANTI CORPORATION 47QRAA20D002D 703-765-0060 ALEXANDRIA ,VA s/w/wo/ew/d
AVANTI CORPORATION GS-10F-0308P 703-765-0060 ALEXANDRIA ,VA s/w/wo
AYUDA COMPANIES GS-10F-0043W 303-999-2152 DENVER ,CO s/w/wo/ew/d/h
B&B DIVERSIFIED ENTERPRISES, INC.       GS-00F-307DA (610)845-0640 BARTO ,PA s/w/wo/d  
BATTA ENVIRONMENTAL ASSOCIATES, INC. GS-10F-0004T 3027373376 NEWARK ,DE s/d
BATTELLE MEMORIAL INSTITUTE GS-00F-084CA 614-424-3522 COLUMBUS ,OH o
BAY WEST LLC GS-10F-0280V 651-291-3456 SAINT PAUL ,MN s
BB&E, INC. 47QRAA20D007E 2484899636 NORTHVILLE ,MI s
BB&E, INC. GS-10F-0103N 2484899636 NORTHVILLE ,MI s
BBJ GROUP LLC GS-10F-0471X 312-219-7769 CHICAGO ,IL s
BHATE ENVIRONMENTAL ASSOCIATES, INC. 47QRAA19D004S 2059184033 BIRMINGHAM ,AL s
BLACK GOLD INDUSTRIES GS-10F-0263S (858) 699-3173 OXNARD ,CA s/d/8a
BLUESTONE ENVIRONMENTAL GROUP INC. GS-00F-117DA 484-802-5150 MALVERN ,PA s/w/wo/ew/8a
BMT DESIGNERS & PLANNERS, INC. GS-00F-337CA 703-920-7070 ARLINGTON ,VA o
BOWEN-WILSON, INC. GS-00F-288GA 334-284-1612 MONTGOMERY ,AL s
BROADBENT & ASSOCIATES, INC. 47QRAA20D004L 775-322-7969 EXT. 60 HENDERSON ,NV o
BURLESON CONSULTING, INC. GS-10F-0277R 916-984-4651 FOLSOM ,CA s/d
C.J. SETO SUPPORT SERVICES, LLC GS-10F-0408R 805-233-2047 VENTURA ,CA s/dv/d
CABRERA SERVICES INC. 47QRAA18D000H 860-569-0095 EAST HARTFORD ,CT s/d
CALIBRE SYSTEMS, INC. GS-00F-185CA (703)797-8560 ALEXANDRIA ,VA o  
CAPE ENVIRONMENTAL MANAGEMENT INC. GS-10F-0059N (678)280-0405 NORCROSS ,GA s  
CARDNO GS, INC. GS-00F-196CA 9165487783 CHARLOTTESVILLE ,VA o
CE2 CORPORATION, INC. GS-00F-207CA 510-816-1517 PLEASANTON ,CA s/d
CEMCO-CUSTOM ENVIRONMENTAL MANAGEMENT CO., INC. GS-00F-251DA 6092613848 HAINESPORT ,NJ s
CHENEGA FACILITIES MANAGEMENT, LLC 47QSHA20D0033 256-665-0610 SAN ANTONIO ,TX o
CHENEGA RELIABLE SERVICES, LLC 47QSHA21D001A 256-665-0610 SAN ANTONIO ,TX s/d/8a
CHLOETA FIRE, L.L.C. GS-10F-049BA 877-245-6382 JAY ,OK s/d/8a/h
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. GS-10F-0270M (781)792-5747 NORWELL ,MA o  
CLEAN VENTURE, INC. GS-10F-0254N 3145780579 AVENEL ,NJ o
COLORADO HAZARD CONTROL, LLC GS-00F-158DA (303)819-5468 DENVER ,CO s/d  
CONCURRENT TECHNOLOGIES CORPORATION 47QRAA21D0021 814-269-2871 JOHNSTOWN ,PA o
CONSOLIDATED SAFETY SERVICES INCORPORATED GS-00F-217CA (703) 877-3352 FAIRFAX ,VA o
CONSULTECH ENVIRONMENTAL, LLC 47QRAA20D003M 919-234-4238 APEX ,NC s/w/wo/ew/d
CREDERE ASSOCIATES, LLC 47QRAA18D005L 207-828-1272 WESTBROOK ,ME s/w/wo/ew/d/8a
CRITERION LABORATORIES INC GS-10F-0311X 2152441300 BENSALEM ,PA s
CSA OCEAN SCIENCES INC. GS-10F-0443M 7729793134 STUART ,FL o
DADE MOELLER & ASSOCIATES, INC. GS-00F-333CA 509.942.3644 RICHLAND ,WA o
DAVEY RESOURCE GROUP, INC. GS-10F-0615N (330)607-7464 KENT ,OH o  
DAWSON SOLUTIONS, LLC 47QRAA18D009F 2105276907 HUNTSVILLE ,AL s/d/8a
DKI RESTORATION, LLC 47QRAA18D00FW 630-350-3000 ELK GROVE VILLAGE ,IL s/d
DOCUMENT REPROCESSORS OF NEW YORK, INC. GS-10F-0126X 888-437-9464 PENN YAN ,NY s
DOUGLAS W PETERS & ASSOCIATES, INC GS-10F-0049N (502) 454-8530 LOUISVILLE ,KY s
DOWNSTREAM STRATEGIES LLC GS-10F-103AA 304-292-2450 MORGANTOWN ,WV s
DPSTUDIO, LLC 47QRAA19D00C3 804-402-0446 RICHMOND ,VA s/w/wo/d
EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBC 47QRAA19D005G 410-584-7000 HUNT VALLEY ,MD s
EARTH RESOURCES TECHNOLOGY, INC. GS-00F-109CA 3013231435 LAUREL ,MD o
EARTH SYSTEMS, INC. 47QRAA21D0009 9042470740 JACKSONVILLE BEACH ,FL s/d
ECO & ASSOCIATES INC GS-10F-0371U 714-289-0995 TUSTIN ,CA s/w/d/8a
ECOLOGY AND ENVIRONMENT, INC. 47QRAA18D0073 (202)303-2613 ARLINGTON ,VA o  
ECOSPHERE ENVIRONMENTAL SERVICES, INC. GS-10F-0462N 970-382-7256 DURANGO ,CO s
ECOSYSTEM RESEARCH GROUP LLC GS-10F-0288P 4067219420 MISSOULA ,MT s/h
ECS MID-ATLANTIC, LLC 47QRAA19D006M 703-471-4800 CHANTILLY ,VA o
EHS-INTERNATIONAL, INC. GS-10F-0400S 2067317401 SEATTLE ,WA s/d
EL DORADO ENGINEERING, INC.       47QRAA18D00E6 801-966-8288 WEST JORDAN ,UT s
EMERGENCY RESTORATION SPECIALISTS INC. 47QRAA21D0003 (414)571-9977 CUDAHY ,WI s    
ENDPOINT SOLUTIONS CORP. GS-10F-133BA 414-858-1204 FRANKLIN ,WI s
ENGINEERING/REMEDIATION RESOURCES GROUP, INC. GS-10F-0294R 425-658-5361 MARTINEZ ,CA o
ENVIROAPPLICATIONS, INC. GS-10F-0039X 619.291.3636 SAN DIEGO ,CA s
ENVIRONMENTAL CHEMICAL CORPORATION GS-10F-0091M 7208794737 BURLINGAME ,CA s
ENVIRONMENTAL COMPLIANCE CONSULTANTS, INC       GS-10F-0018V 907-777-7107 ANCHORAGE ,AK s/dv/h
ENVIRONMENTAL CONSULTING AND TRAINING SERVICES, INC GS-10F-0355L 8657193215 ALCOA ,TN s/w/wo
ENVIRONMENTAL CONSULTING GROUP, INC. GS-10F-0045V 630.607.0060 ELMHURST ,IL s
ENVIRONMENTAL COST MANAGEMENT, INC. GS-10F-0335R (510) 964-4399 COSTA MESA ,CA s/d
ENVIRONMENTAL GROUP SERVICES, LTD. GS-10F-0457Y 312-447-1200 CHICAGO ,IL s
ENVIRONMENTAL MANAGEMENT INC GS-10F-0308T 907-272-9336 ANCHORAGE ,AK s
ENVIRONMENTAL MANAGEMENT SERVICES INC GS-10F-0074T (301) 309-0475 ROCKVILLE ,MD s/w/wo/ew/d
ENVIRONMENTAL QUALITY MANAGEMENT, INC 47QRAA19D00BJ 5138257500 CINCINNATI ,OH s/d
ENVIRONMENTAL RESEARCH GROUP LLC GS-10F-142BA 4103665170 BALTIMORE ,MD s/w/wo/ew/dv/8a
ENVIRONMENTAL SCIENCE ASSOCIATES GS-10F-0191M 916.769.9303 SAN FRANCISCO ,CA o
ENVIRONMENTAL TECHNICAL SOLUTIONS, LLC 47QRAA18D001Q (813)298-0303 DENVER ,CO s/w/wo/ew/d  
ENVIRONMENTAL TESTING AND CONSULTING, INC. GS-00F-222GA 800-864-3236 ROMULUS ,MI s/w/wo/ew/d
ENVIROSCIENCE, INC. GS-10F-0181U 330-688-0111 STOW ,OH s
EPSILON SYSTEMS SOLUTIONS, INC. GS-00F-0035N 619-702-1700 SAN DIEGO ,CA o
ERO RESOURCES CORPORATION GS-10F-0302L (303)830-1188 DENVER ,CO s  
ERS, INC. GS-00F-289DA (734)464-4444 LIVONIA ,MI s  
ESP ASSOCIATES, INC. GS-10F-189BA 336-232-5213 FORT MILL ,SC o
ESS GROUP, INC. GS-10F-0080W 401-330-1260 RIVERSIDE ,RI s
FIRST ENVIRONMENT, INC. GS-10F-0178R 9733340003 BUTLER ,NJ s/dv
FOURTUNE 4, INC.
(DBA: EAC ENVIRONMENTAL ASSESSMENTS CONSULTING)
GS-10F-181BA 9413788844 SARASOTA ,FL s
FPM GROUP, LTD. GS-00F-104CA 631-737-6200 BOHEMIA ,NY s
FPM REMEDIATIONS, INC. GS-10F-0113V 631-737-6200 EXT 512 ONEIDA ,NY s/8a/h
FRED PHILLIPS CONSULTING LLC GS-10F-0024W (928)773-1530 FLAGSTAFF ,AZ s  
GANNETT FLEMING, INC. GS-00F-114CA 703- 277-9506 CAMP HILL ,PA o
GEM TECHNOLOGIES, INC. 47QRAA20D007W 865-660-7339 KNOXVILLE ,TN s/d
GEM TECHNOLOGY INTERNATIONAL, CORP. GS-00F-0001R 305.447.1344 MIAMI ,FL s/w/wo/ew/d
GEOENGINEERS, INC. 47QRAA18D00E3 425.861.6000 REDMOND ,WA o
GEOSYNTEC CONSULTANTS INC GS-10F-0106M 919-424-1823 KENNESAW ,GA o
GEOSYSTEMS ANALYSIS, INC. GS-10F-0209Y 520-628-9330 TUCSON ,AZ s
GRB ENVIRONMENTAL SERVICES INC GS-10F-0284X 212-564-8640 NEW YORK ,NY s/w
GREEN MAPLE ENTERPRISES LLC 47QRAA20D008V (412)299-5520 CORAOPOLIS ,PA s    
GREEN STREET ENVIRONMENTAL, LLC 47QRAA18D000N (202)234-8933 BALTIMORE ,MD s  
GRYPHON ENVIRONMENTAL, LLC GS-10F-144BA 719-578-3330 COLORADO SPRINGS ,CO s/dv
GS GROUP LLC GS-00F-162GA 313-279-0449 DETROIT ,MI s/w/wo/ew/d/8a/h
GSE, INC. 47QRAA18D008P 256-350-9754 TRINITY ,AL s/w/wo/d
GSI ENVIRONMENTAL INC. 47QRAA18D009N 5123464474 HOUSTON ,TX o
GSI NORTH AMERICA INC. 47QRAA19D002Z (808)349-3178 FLEMINGTON ,NJ s/d/8a  
GUTIERREZ CANALES ENGINEERING, P.C. 47QRAA21D003J (928)217-2419 YUMA ,AZ s/w/wo    
HARBOR ENVIRONMENTAL, INC. 47QRAA21D001J 5016638800 LITTLE ROCK ,AR s/w/wo/ew/d
HAZAIR, INC. GS-10F-114CA (505)504-4753 LAS VEGAS ,NV s/dv/d/8a  
HAZTRAIN, INC. 47QRAA20D0056 301-932-0994 WALDORF ,MD s/w/wo
HDR ENGINEERING, INC. GS-00F-152CA 303-754-4252 OMAHA ,NE o
HGS ENGINEERING, INC. GS-10F-0039P 256-236-1848 ANNISTON ,AL s/dv
HORIZON ENVIRONMENTAL SERVICES, INC. 47QRAA19D00BS 970-259-4346 DURANGO ,CO s/w/wo/ew
HORSLEY WITTEN GROUP, INC. GS-10F-0304T 508-833-6600 SANDWICH ,MA s
HSG, LLC GS-10F-230BA 702-271-4673 LAS VEGAS ,NV s/w/wo/ew/d
HUDSPETH & ASSOCIATES, INC GS-10F-0148T (303)791-5562 ENGLEWOOD ,CO s  
HYDROGEOLOGIC, INC. 47QRAA18D00CW 7037364551 RESTON ,VA s
HYDROSOLUTIONS INC GS-10F-0172X 4064436169 HELENA ,MT s/dv
HZW ENVIRONMENTAL CONSULTANTS, LLC       47QRAA19D00C6 330-208-2717 MENTOR ,OH s/w/wo
ICF INCORPORATED, L.L.C. GS-00F-010CA 703-934-3632 FAIRFAX ,VA o
INDUSTRIAL HYGIENE RESOURCES, LTD GS-10F-0176R 2083238287 BOISE ,ID s
INSURCOMM, INC. 47QRAA20D006E 603-430-7701 PORTSMOUTH ,NH s/h
JANUS GLOBAL OPERATIONS LLC GS-10F-0314M (865)988-6063 LENOIR CITY ,TN o  
JARDON & HOWARD TECHNOLOGIES, INCORPORATED GS-00F-0059M 407-381-7797 ORLANDO ,FL o
JOHNSON COMPANY, INC. THE GS-10F-0481P (802)229-4600 MONTPELIER ,VT s  
KANE ENVIRONMENTAL, INC. GS-10F-0061W 2066910476 SEATTLE ,WA s
KEMRON ENVIRONMENTAL SERVICES, INC. 47QRAA20D000E 404-601-6930 ATLANTA ,GA s
KLEINSCHMIDT ASSOCIATES 47QRAA18D005P (717)576-6518 PITTSFIELD ,ME o  
KMEA 47QRAA20D006G 619-787-0515 NATIONAL CITY ,CA o
L S A ASSOCIATES, INC. 47QRAA18D009Y 949-553-0666 IRVINE ,CA o
LCA ENVIRONMENTAL INC GS-00F-075GA 972-241-6680 DALLAS ,TX s/w/wo/ew/d
LEGEND TECHNICAL SERVICES, INC. GS-10F-0371R 651-221-4085 SAINT PAUL ,MN s/w
LEIDOS, INC. GS-00F-022CA (571) 526-7305 RESTON ,VA o
LEW CORPORATION 47QRAA18D002A 336-887-1328 MINE HILL ,NJ s
LG2 ENVIRONMENTAL SOLUTIONS INC       GS-10F-0375N 9043631686 X104 JACKSONVILLE ,FL s/w/wo/ew/d/8a
LIMNO-TECH, INC. GS-10F-150BA (734) 332-1200 ANN ARBOR ,MI o
LINK TECHNOLOGIES INC 47QRAA20D0096 301-983-6878 GERMANTOWN ,MD s/w/wo
LOS ALAMOS TECHNICAL ASSOCIATES, INC. GS-10F-0017V (505)880-3495 ALBUQUERQUE ,NM s  
LOSS CONTROL AND RECOVERY, INC. GS-10F-076AA (704)766-2434 HUNTERSVILLE ,NC s  
LRS FEDERAL LLC GS-10F-0360T (410) 544-3570 SEVERNA PARK ,MD s/dv
MABBETT & ASSOCIATES, INC. GS-10F-0120T 781-275-6050 STONEHAM ,MA s/dv
MANNIK & SMITH GROUP, INC., THE 47QRAA20D006A 734-790-5177 MAUMEE ,OH s
MATRIX DESIGN GROUP, INC. 47QRAA19D009K 5719690495 COLORADO SPRINGS ,CO o
MATRIX ENVIRONMENTAL SERVICES LLC GS-00F-057GA (303)572-0200 DENVER ,CO s  
MATRIX NEW WORLD ENGINEERING, INC. GS-10F-0477M (973)240-1800 FLORHAM PARK ,NJ s/w/d  
MAXXIMUS ENVIRONMENTAL, INC GS-10F-0180X 7032170153 ROCKVILLE ,MD s/d
MC CONSULTING, INC GS-10F-0226M (630)887-0922 WESTMONT ,IL s/d  
MECX, INC. GS-10F-0328R 713-585-7000 HOUSTON ,TX s/dv
METALS TREATMENT TECHNOLOGIES, LLC 47QRAA18D00CS 720-465-7035 ARVADA ,CO s
MICHAEL BAKER INTERNATIONAL, INC. GS-00F-0032M 703-483-0029 ALEXANDRIA ,VA o
MOUNTAIN VIEW MAINTENANCE, LLC 47QRAA21D002A (801)513-3364 LAYTON ,UT s    
MSE GROUP, LLC GS-10F-0469Y 855-629-8180 SAN ANTONIO ,TX s
MUNIREM ENVIRONMENTAL, LLC GS-00F-161GA 706-316-3525 DULUTH ,GA s/d
NATURES IMAGE, INC. GS-10F-045BA 9496804400 LAKE FOREST ,CA s/w/wo
NAVARRO RESEARCH AND ENGINEERING, INC. GS-00F-0092N 865-220-9650 OAK RIDGE ,TN s/w/wo/d
NELSON ENGINEERING CO. GS-00F-324CA 3214491128 MERRITT ISLAND ,FL s
NOREAS, INC. GS-00F-373GA 714-955-3120 IRVINE ,CA s/d/8a
NORTECH, INC. GS-10F-0150R (907) 452-5688 FAIRBANKS ,AK s
NUTTER & ASSOCIATES, INC. 47QRAA19D009B 706-354-7925 ATHENS ,GA s/h
OAK RIDGE ASSOCIATED UNIVERSITIES, INCORPORATED GS-00F-195CA (865) 574-7759 OAK RIDGE ,TN o
ONE SILVER SERVE, INC. 47QRAA21D0008 818-995-6444 ENCINO ,CA s
ONEIDA TOTAL INTEGRATED ENTERPRISES, LLC 47QRAA20D009B 414-257-4200 MILWAUKEE ,WI s/d
ONETOUCH REMEDIATION, LLC 47QRAA20D002T (281)971-7721 KATY ,TX s
OPES, INC GS-10F-185AA (405)360-2911 NORMAN ,OK s/h  
ORION ENVIRONMENTAL, INC. 47QRAA21D000V 562-988-2755 LONG BEACH ,CA s
OTIS BAY, INC. GS-10F-0331Y (775)345-9960 VERDI ,NV s  
PACIFIC WESTERN TECHNOLOGIES, LTD. GS-00F-0002M (303)274-5400 WHEAT RIDGE ,CO s/w/d  
PARAGON PROFESSIONAL SERVICES LLC 47QRAA19D007B 907-334-8311 ANCHORAGE ,AK s/d/8a
PARAMETRIX, INC. GS-10F-0013N (253)863-5128 PUYALLUP ,WA o  
PARS ENVIRONMENTAL INC. GS-10F-0094W 609-890-7277 ROBBINSVILLE ,NJ o
PARSONS GOVERNMENT SERVICES INC. 47QRAA19D000A (210) 477-1616 PASADENA ,CA o
PBS ENGINEERING AND ENVIRONMENTAL INC. 47QRAA21D0001 (503)248-1939 PORTLAND ,OR o    
PIKA INTERNATIONAL, INC. GS-10F-0202U 2813405525 STAFFORD ,TX s/d
PINYON ENVIRONMENTAL, INC. GS-10F-0298N 303.984.0257 LAKEWOOD ,CO s/w
PIONEER TECHNICAL SERVICES, INC. GS-10F-050AA 406-497-8057 BUTTE ,MT s
PLEXUS SCIENTIFIC CORPORATION 47QRAA19D00BK 571-527-1214 ALEXANDRIA ,VA s
PORTAGE, INC. GS-00F-262CA (208)419-4152 IDAHO FALLS ,ID s  
PRESTIGE ENVIRONMENTAL INC GS-10F-0166T 908-757-9700 SOMERSET ,NJ s
PROFESSIONAL ENVIRONMENTAL ENGINEERS, INC. GS-10F-200BA 314-531-0060 SAINT LOUIS ,MO s/w
PROFESSIONAL PROJECT SERVICES, INC. GS-00F-112CA 865.220.4377 OAK RIDGE ,TN s
PRUDENT TECHNOLOGIES, INC. GS-10F-0176Y (816)363-3703 KANSAS CITY ,MO s/d  
PURE AIR CONTROL SERVICES, INC. GS-10F-0488R 7275724550 CLEARWATER ,FL s
PYRAMID ENVIRONMENTAL AND ENGINEERING, P.C. GS-10F-0403N 336-335-3174 GREENSBORO ,NC s
QUANTUM ENVIRONMENTAL & ENGINEERING SERVICES, LLC GS-10F-0405Y (865)689-1395 KNOXVILLE ,TN s  
QUATERNARY RESOURCE INVESTIGATIONS, L.L.C. GS-10F-105BA 2252921400 BATON ROUGE ,LA s/w/wo/ew/d
RED J ENVIRONMENTAL CORPORATION GS-10F-0246T (928)288-3239 JOSEPH CITY ,AZ s/h  
REDHORSE CORPORATION       GS-00F-0013Y 619-241-4609 SAN DIEGO ,CA o
REDHORSE CORPORATION GS-07F-134GA 619-241-4609 SAN DIEGO ,CA s/dv/d/8a
RENOVA ENVIRONMENTAL SERVICES LIMITED LIABILITY COMPANY 47QRAA20D005N 732-659-1000 OCEAN ,NJ s/d/8a/h
RESEARCH MANAGEMENT CONSULTANTS INC. GS-10F-0071M 303-277-0066, EXT 22 GOLDEN ,CO s/w/wo
RESOURCE & ENVIRONMENTAL MANAGEMENT CONSULTANTS, INC. GS-10F-0014W 801-255-2626 MIDVALE ,UT s/w/wo
RESOURCE MANAGEMENT CONCEPTS INC GS-00F-005CA 301-862-7501 LEXINGTON PARK ,MD o
RESPEC COMPANY, LLC GS-00F-0078N (605)394-6507 RAPID CITY ,SD o  
RMEC ENVIRONMENTAL INC GS-10F-0147P 8014673661 SALT LAKE CITY ,UT s
ROBERT AND COMPANY GS-00F-210GA 4045774000 ATLANTA ,GA s/dv
S P CRAMER & ASSOCIATES INC 47QRAA19D0045 503-850-9024 PORTLAND ,OR s
S.C. ANDERSON GROUP INTERNATIONAL, INC. GS-10F-122BA (818) 760-4500 BAKERSFIELD ,CA s/w
S.S. PAPADOPULOS & ASSOCIATES, INC. GS-10F-0462M 3017188900 ROCKVILLE ,MD s
SEMS, INC. GS-00F-056GA (225)924-2002 BATON ROUGE ,LA s  
SERES ENGINEERING & SERVICES LLC 47QRAA18D00ES (843) 216-8531 CHARLESTON ,SC s/d/8a
SERGIO CORPORATION, THE 47QRAA21D001P (574)288-0500 SOUTH BEND ,IN s    
SES, INC. GS-10F-0460M 9133070046 LENEXA ,KS s
SOIL AND LAND USE TECHNOLOGY, INC.
(DBA: TLB ASSOCIATES)
GS-10F-0072T 301-595-3783 WASHINGTON ,DC s
SOLUTIENT TECHNOLOGIES, LLC 47QRAA18D008Q 3304975905 NORTH CANTON ,OH s/d
SOURCE ENVIRONMENTAL, INC. 47QRAA20D000C 303-333-8521 DENVER ,CO s/w/wo
SOURCE ENVIRONMENTAL, INC.
(DBA: AET ENVIRONMENTAL)
GS-10F-0361L 303-333-8521 DENVER ,CO s/w/wo/ew
SOUTHERN DEMOLITION, LLC 47QRAA20D007Y 404-931-1173 ATLANTA ,GA s/w/wo/ew/d
SOUTHWEST HAZARD CONTROL, INC. GS-10F-115BA 5206223607 TUCSON ,AZ s/w/d
SPECPRO PROFESSIONAL SERVICES, LLC       47QRAA19D004W 210-201-8994 SAN ANTONIO ,TX s/d/8a
SPECTRA TECH, INC. GS-00F-264CA 865-813-2131 OAK RIDGE ,TN s
SPECTRUM SERVICES GROUP, INC. GS-10F-237AA (916)208-1600 SACRAMENTO ,CA s/d/8a/h  
STANTEC CONSULTING SERVICES INC. 47QRAA19D000Q 916-418-8338 BROOMFIELD ,CO o
STEARNS, CONRAD AND SCHMIDT CONSULTING ENGINEERS, INC. 47QRAA20D002R 5713532020 LONG BEACH ,CA o
SUSTAINMENT AND RESTORATION SERVICES, LLC 47QRAA18D00FN 414-257-4200 MILWAUKEE ,WI s/d/8a
TAKATA, JON K CORPORATION
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GS-10F-153AA (800)400-5058 HAYWARD ,CA s  
TECHLAW, INC. 47QSWA18D008B 7038183233 CHANTILLY ,VA s
TEHAMA, LLC       47QRAA18D00A4 816-678-7510 KANSAS CITY ,MO s/d/8a
TERRA SOLUTIONS & SERVICES, INC. 47QRAA19D00AV (859)392-0425 HERLONG ,CA s/d/8a  
TERRACON CONSULTANTS, INC. 47QRAA20D0065 (301)913-5000 OLATHE ,KS o    
TERRANEAR PMC LLC GS-00F-322CA (832)265-4900 EXTON ,PA s/d  
TERRANEXT, LLC GS-10F-0320L 303-399-6145 DENVER ,CO s/w/wo/ew/d
TETRA TECH EC, INC. 47QRAA18D00H0 8036414928 GOLDEN ,CO o
TETRA TECH, INC. GS-00F-168CA 8056813102 PASADENA ,CA o
TETRAHEDRON INC GS-10F-0598N (410)837-0512 BALTIMORE ,MD s/w/d/8a  
TIDEWATER, INC. GS-10F-0260R 410-540-8700 ELKRIDGE ,MD o
TITAN ENVIRONMENTAL SOLUTIONS, INC 47QRAA20D003Q 714-860-8965 FULLERTON ,CA s/d/8a
TK&K SERVICES, L.L.C. 47QRAA20D008E 6174481668 ALPHARETTA ,GA s/dv
TLI SOLUTIONS, INC. GS-10F-0343S 7038183233 CHANTILLY ,VA o
TOEROEK ASSOCIATES, INC. GS-00F-055CA (303) 420-7735 LAKEWOOD ,CO s
TOTAL ENVIRONMENTAL CONCEPTS, INC. GS-10F-0270V 3015480382 GAITHERSBURG ,MD s
TRANSYSTEMS CORPORATION 47QRAA19D001C 510-835-9898 KANSAS CITY ,MO o
TRC ENVIRONMENTAL CORPORATION GS-10F-0401M (978)656-3620 WINDSOR ,CT o  
TRIHYDRO CORPORATION GS-00F-136GA 307-745-7474 LARAMIE ,WY s/h
TRINITY ANALYSIS AND DEVELOPMENT CORP. GS-00F-213DA (850)613-6800 SHALIMAR ,FL s/d  
TRIUMVIRATE ENVIRONMENTAL, INC GS-10F-0263U (800)966-9282 SOMERVILLE ,MA o  
TSA CLEAN LLC 47QRAA21D003N (240)938-7461 VIRGINIA BEACH ,VA s/w/wo/ew    
TTL ASSOCIATES, INC. GS-10F-0255U 419-324-2222 TOLEDO ,OH s/dv
UNIFIED BUSINESS TECHNOLOGIES, INC. GS-10F-0230X 248-588-1781 TROY ,MI s/w/wo/ew/d
UNIVERSAL SOLUTIONS, INC. GS-00F-315GA (813)639-1241 TAMPA ,FL s/d  
VERSAR, INC. 47QRAA18D00F7 703-642-6793 SPRINGFIELD ,VA o
VM3 ENVIRONMENTAL, INC. GS-00F-190DA (760)273-9728 CARLSBAD ,CA s  
WATER & AIR RESEARCH, INC. GS-10F-0358N 352-372-1500 GAINESVILLE ,FL s
WATER, CIVIL, AND ENVIRONMENTAL INCORPORATED GS-00F-386GA (208) 319-9744 BOISE ,ID s/w/wo/ew/d/8a
WCP INC. GS-10F-0127U (808)596-4688 HONOLULU ,HI s/h  
WENCK ASSOCIATES, INC. GS-10F-0220W 678-987-5854 MAPLE PLAIN ,MN s
WESTMARK GROUP, INC., THE GS-10F-0215X (702) 839-2960 EAGLE ,ID s/v/d/8a
WESTON SOLUTIONS, INC. 47QRAA19D00BT 7039697418 ALBUQUERQUE ,NM o
WETLAND STUDIES AND SOLUTIONS, INC. GS-10F-0273W (703) 679-5609 GAINESVILLE ,VA o
WHITE SHIELD, INC. GS-10F-0357U 509-547-0100 PASCO ,WA s/d
WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. GS-00F-314CA (610)877-6109 BLUE BELL ,PA o  
WSP USA SOLUTIONS INC. 47QRAA18D002R 202-303-2613 WASHINGTON ,DC o
ZIA ENGINEERING & ENVIRONMENTAL CONSULTANTS, L.L.C. GS-10F-0391N 575-680-2337 LAS CRUCES ,NM s/d