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E-mail: ncsccustomer.service@gsa.gov

MAS Multiple Award Schedule
Professional Services - Environmental Services
Category Description
541620 Environmental Consulting Services Services include providing advice and assistance to businesses and other organizations on environmental issues, such as the control of environmental contamination from pollutants, toxic substances, and hazardous materials; Endangered species, wetland, watershed, and other natural resource management plans; Archeological and/or cultural resource management plans. This includes identifying problems (e.g., inspect buildings for hazardous materials), measure and evaluate risks, and recommend solutions. multi disciplined staff of scientists, engineers, and other technicians with expertise in areas, such as air and water quality, asbestos contamination, remediation, ecological restoration, and environmental law such as Planning and Documentation Services for the development, planning, facilitation, coordination, and documentation of and/or for environmental initiatives (or mandates such as Executive Order 13693 in areas of chemical, radiological, and/or hazardous materials; ISO 14001 Environmental Management System (EMS) and sustainable performance measure development; Environmental Assessment (EA) and Environmental Impact Statement (EIS) preparation under the National Environmental Policy Act (NEPA).
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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
A.D. MARBLE & CO., INC. GS-00F-411GA 484-533-2550 KING OF PRUSSIA ,PA s
A.I.S., INC. GS-10F-0131T 508-990-9054 DARTMOUTH ,MA s
AARCHER INC GS-10F-0451M 410-897-9100 ANNAPOLIS ,MD s
ABR INC 47QRAA20D0010 (907) 455-6777 EXT. FAIRBANKS ,AK s
ABT ASSOCIATES, INC. GS-00F-252CA 301-347-5093 ROCKVILLE ,MD o
ACADIAN CONSULTING GROUP 47QRAA19D000Z (225)769-2603 BATON ROUGE ,LA s  
ADANTA, INC. GS-10F-041CA 707-709-8894 NAPA ,CA s/w/wo/ew/d/8a
ADVANCED AIR ANALYSIS, INC. GS-00F-154GA (410)653-7676 PIKESVILLE ,MD s/d  
ADVANCED ENVIRONMENTAL MANAGEMENT GROUP, LLC GS-10F-0338X 734-354-9070 PLYMOUTH ,MI s/d
ADVANCED ENVIRONMENTAL, LLC 47QRAA21D004G (408)512-2912 SAN JOSE ,CA s    
ADVANCED RESOURCE SOLUTIONS, INC GS-10F-0261S 530-676-1095 SHINGLE SPRINGS ,CA s
ADVANCED RESOURCES INTERNATIONAL INC GS-10F-077AA 7035288420 ARLINGTON ,VA s
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
AERO E H & S INC GS-10F-0379Y 4104803636 ELLICOTT CITY ,MD s
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  
AFFINITY CONSULTANTS INC 47QRAA18D0055 (330)854-9066 CANAL FULTON ,OH s    
AGEISS INC. 47QRAA19D00BC 720-340-8770 LAKEWOOD ,CO o
AH ENVIRONMENTAL CONSULTANTS, INC. 47QRAA18D00AU (757)873-4959 NEWPORT NEWS ,VA s    
AIR RESOURCE SPECIALISTS, INC. GS-10F-0046U 970-484-7941 FORT COLLINS ,CO s
ALASKA BIOMAP, INC. 47QSWA19D000K 907-321-2908 JUNEAU ,AK s/w/wo
ALBION ENVIRONMENTAL INC GS-10F-0301W 831-469-9128 SANTA CRUZ ,CA s
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    
ALLEGHENY SCIENCE & TECHNOLOGY CORPORATION GS-10F-053AA 304-319-0044 BRIDGEPORT ,WV s/w/wo/ew/d/8a
ALLIANCE SOLUTIONS GROUP, INC. GS-10F-0272W 757-223-7233 NEWPORT NEWS ,VA s/dv
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
ALPINE ARCHAEOLOGICAL CONSULTANTS, INC. GS-10F-0004S 970-249-6761 EXT 38 MONTROSE ,CO s
ALTA ARCHAEOLOGICAL CONSULTING LLC 47QRAA18D009U 7075444206 SANTA ROSA ,CA s/w/wo/ew/d
ALTHOUSE & MEADE INC 47QRAA19D005T (805)237-9626 PASO ROBLES ,CA s/w/wo/d  
AMERICAN COMPLIANCE TECHNOLOGIES, INC
(DBA: A-C-T ENVIRONMENTAL & INFRASTRUCTURE)
GS-00F-302DA 8635332000 BARTOW ,FL s
ANALYSIS, PLANNING AND MANAGEMENT INSTITUTE, INC. 47QRAA19D0047 540-321-4888 CULPEPER ,VA o
ANAMAR ENVIRONMENTAL CONSULTING, INC. GS-10F-091CA 3523779168 GAINESVILLE ,FL s/w/wo
ANCHOR QEA, LLC GS-10F-0590N 206-287-9130 SEATTLE ,WA o
ANDERSON ENGINEERING OF MINNESOTA, LLC       47QRAA18D006J 763-412-4000 MINNEAPOLIS ,MN s/dv
APPLIED EARTHWORKS INC GS-10F-0332P (559) 229-1856 FRESNO ,CA s
APPLIED ENVIRONMENTAL, INC. 47QRAA19D0098 (703) 648-0822 HERNDON ,VA s/w/wo
APPLIED ENVIROSOLUTIONS INC GS-10F-0324S 480-839-7000 TEMPE ,AZ s/w/wo/ew/d
APPLIED INSIGHT, LLC GS-00F-145GA 703-554-1650 TYSONS ,VA o
APPLIED INTELLECT GS-10F-026BA 571-510-0862 CRANBERRY TOWNSHIP ,PA s/d/8a
APPLIED MARINE SCIENCES, INC 47QRAA19D005B 925-373-7142 LIVERMORE ,CA s
ARC ENVIRONMENTAL, INC. GS-10F-0007S 410-659-9971 BALTIMORE ,MD s
ARCHAEOLOGICAL CONSULTING SERVICES, LTD. GS-10F-0224P 480-894-5477 TEMPE ,AZ s/w
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  
ASIR, LLC GS-10F-0249X 505-247-9337 ALBUQUERQUE ,NM s
ASM AFFILIATES INC 47QRAA19D0092 3102783100 CARLSBAD ,CA s
ASM AFFILIATES INC GS-10F-0373N (310) 278-3100 X 701 CARLSBAD ,CA s
ASPEN CULTURAL RESOURCE MANAGEMENT SOLUTIONS GS-10F-0013V 505-231-0157 SANTA FE ,NM s/w
ASPEN ENVIRONMENTAL GROUP       GS-10F-0229N 818-597-3407 AGOURA HILLS ,CA s/d
ASSISTED MANAGEMENT SOLUTIONS, INC. GS-00F-381GA (301)904-5223 LEONARDTOWN ,MD s/w/wo/ew/d/8a    
ASSOCIATION OF STATE WETLAND MANAGERS INC, THE GS-10F-0065V 207-892-3399 WINDHAM ,ME o
ATC GROUP SERVICES LLC GS-10F-0458N (720)837-5628 LAFAYETTE ,LA o  
ATCS, P.L.C. GS-10F-0040V 703-817-3544 HERNDON ,VA 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
ATLANTIC GROUP, LLC, THE GS-10F-106AA 2569719991 HUNTSVILLE ,AL s
AUXILIO MANAGEMENT SERVICES       GS-00F-005HA 7203271068 DENVER ,CO s/w/wo/ew/d/8a
AVALON BUSINESS ENGINEERING SERVICES, LLC 47QRAA20D003E 801 668-5823 CLEARFIELD ,UT s/w/wo/ew/dv/d/8a
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
AXIS MANAGEMENT GROUP LLC 47QRAA18D007F 540-338-5071 MCLEAN ,VA s/w/wo/ew/d/8a
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  
B3GLOBALCON, LLC       GS-00F-226GA (804)519-9808 MIDLOTHIAN ,VA s/dv/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
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
BIO-WEST, INC. GS-10F-0331S 435-752-4202 LOGAN ,UT s
BIODIVERSITY RESEARCH INSTITUTE INC GS-10F-226AA 207-839-7600 PORTLAND ,ME o
BIORESOURCE CONSULTANTS, INC.       GS-10F-0437X 805-646-9006 OJAI ,CA s/d
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
BOGGS ENVIRONMENTAL CONSULTANTS, INC. 47QRAA21D006A 301-694-5687 MIDDLETOWN ,MD s
BOOZ ALLEN HAMILTON INC.       GS-00F-008DA 703-377-4359 MCLEAN ,VA o
BOSTON GOVERNMENT SERVICES, LLC GS-00F-013GA (202)262-8098 LENOIR CITY ,TN s/d/8a
BRATSLAVSKY CONSULTING ENGINEERS, INC. GS-00F-071CA 9072807619 ANCHORAGE ,AK s
BRIC, LLC 47QRAA20D007L 505-259-8187 SCOTTSDALE ,AZ s/d/8a/h
BROADBENT & ASSOCIATES, INC. 47QRAA20D004L 775-322-7969 EXT. 60 HENDERSON ,NV o
BROCKINGTON AND ASSOCIATES, INC. GS-10F-0145U 843-881-3128 ATLANTA ,GA s
BSA ENVIRONMENTAL SERVICES, INC. GS-10F-0302S 2167650582 CLEVELAND ,OH s
BUELL ENVIRONMENTAL LLC GS-00F-266DA 970-736-8557 OAK CREEK ,CO s/w/wo
BURLESON CONSULTING, INC. GS-10F-0277R 916-984-4651 FOLSOM ,CA s/d
BURNS & MCDONNELL ENGINEERING COMPANY, INC. 47QRAA18D0054 816-822-4343 KANSAS CITY ,MO o
C. H. GUERNSEY & COMPANY 47QRAA19D00DM 405-416-8278 OKLAHOMA CITY ,OK o
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
CADMUS GROUP LLC, THE GS-00F-227CA 617 673-7170 WALTHAM ,MA o
CALIBRE SYSTEMS, INC. GS-00F-185CA 7037978500 ALEXANDRIA ,VA o
CARDNO GS, INC. GS-00F-196CA 9165487783 CHARLOTTESVILLE ,VA o
CASTLE HILL ASSOCIATES, LLC 47QRAA18D00BP (567) 952-0212 WATERVILLE ,OH s/w/wo/dv/d
CDM FEDERAL PROGRAMS CORPORATION GS-00F-085CA 303-383-2300 FAIRFAX ,VA o
CE2 CORPORATION, INC. GS-00F-207CA 510-816-1517 PLEASANTON ,CA s/d
CHENEGA FACILITIES MANAGEMENT, LLC 47QSHA20D0033 256-665-0610 SAN ANTONIO ,TX o
CHENEGA RELIABLE SERVICES, LLC 47QSHA21D001A 210-236-3934 SAN ANTONIO ,TX s/d/8a
CHEROKEE NATION MANAGEMENT & CONSULTING, L.L.C. GS-00F-302GA 210-323-4113 CATOOSA ,OK s/d/8a
CHESAPEAKE ENVIRONMENTAL COMMUNICATIONS, INC. 47QRAA18D005E (804)824-3945 RICHMOND ,VA s/w/wo/ew/d  
CHLOETA FIRE, L.L.C. GS-10F-049BA 877-245-6382 JAY ,OK s/d/8a/h
CIRCLEPOINT GS-00F-0012R (510) 285-6700 OAKLAND ,CA s
CIRRUS ECOLOGICAL SOLUTIONS, L.C. GS-10F-0164T 4357871490 LOGAN ,UT s
CITADEL ENVIRONMENTAL SERVICES, INC. GS-10F-0281V (818)246-2707 GLENDALE ,CA s  
CLARK GROUP, LLC, THE GS-10F-0150W 8029170584 WASHINGTON ,DC s/w/wo/ew/d
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. GS-10F-0270M (781)792-5747 NORWELL ,MA o  
CLEAN VENTURE, INC. GS-10F-0254N 3145780579 AVENEL ,NJ o
COASTAL ENVIRONMENTS, INC. GS-10F-0445N (225)383-7455 BATON ROUGE ,LA s  
COGSTONE RESOURCE MANAGEMENT GS-10F-0463X 714-974-8300 ORANGE ,CA s/w/wo/ew/d/8a
COLIBRI ECOLOGICAL CONSULTING, LLC 47QRAA21D0018 559-761-1551 FRESNO ,CA s/w/wo/ew/d
COLLABORATIVE INC, THE GS-10F-0147V 303-442-3601 BOULDER ,CO s
COMMONWEALTH HERITAGE GROUP,INC. GS-00F-261DA 5173206929 DEXTER ,MI s
COMPREHENSIVE ENVIRONMENTAL INC. 47QRAA18D00DM 603-424-0564 BOLTON ,MA s/w/wo/ew/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
COPPERHEAD ENVIRONMENTAL CONSULTING, INC 47QRAA18D00CR 8599259012 PAINT LICK ,KY s
CORNERSTONE ENVIRONMENTAL CONSULTING, LLC       47QRAA19D0057 928-522-4148 FLAGSTAFF ,AZ s/d
CRANMER ENGINEERING, INC.
(DBA: CRANMER ANALYTICAL LABORATORY)
47QSWA21D0012 530-273-7284 GRASS VALLEY ,CA s/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
CRS CONSULTING ENGINEERS, INCORPORATED       47QRAA19D004X 801-359-5565 SALT LAKE CITY ,UT s/d
CSA OCEAN SCIENCES INC. GS-10F-0443M 7729793134 STUART ,FL o
CULTURAL RESOURCE ANALYSTS INC 47QRAA19D0048 859-252-4737 LEXINGTON ,KY s
DADE MOELLER & ASSOCIATES, INC. GS-00F-333CA 509.942.3644 RICHLAND ,WA o
DAV ENERGY SOLUTIONS GS-00F-314GA (619) 356-1147 SAN DIEGO ,CA s/dv
DAVEY RESOURCE GROUP, INC. GS-10F-0615N (330)607-7464 KENT ,OH o  
DAWSON SOLUTIONS, LLC 47QRAA18D009F 2105276907 HUNTSVILLE ,AL s/d/8a
DCR SERVICES & CONSTRUCTION, INC.       47QRAA18D009A (313)779-2612 DETROIT ,MI s/d/8a/h  
DESERT ARCHAEOLOGY, INC GS-10F-161AA 520-881-2244 TUCSON ,AZ s
DEWBERRY ENGINEERS INC. GS-00F-280CA 7032086872 FAIRFAX ,VA o
DKI RESTORATION, LLC 47QRAA18D00FW 630-350-3000 ELK GROVE VILLAGE ,IL s
DMG FOUR CORNERS RESEARCH INC GS-10F-0614N 575-323-3271 LAS CRUCES ,NM s/w
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
DPRA INCORPORATED 47QRAA19D003T 785-564-6041 KNOXVILLE ,TN s
DPSTUDIO, LLC 47QRAA19D00C3 804-402-0446 RICHMOND ,VA s/w/wo/d
DTECH SERVICES 47QRAA19D0076 817-695-6519 ARLINGTON ,TX s/d
DYNAMIC SOLUTIONS, LLC GS-10F-0527N 8652123331 KNOXVILLE ,TN s/w
E & S ENVIRONMENTAL CHEMISTRY, INC.       47QRAA21D003Q 541-758-1330 CORVALLIS ,OR s
E. H. T. TRACERIES, INC. 47QRAA18D001L (202)-393-1199 WASHINGTON ,DC s/w/wo/ew/d
E3 FEDERAL SOLUTIONS, LLC GS-00F-151CA 571-551-2726 MCLEAN ,VA o
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 SMART ENVIRONMENTAL SOLUTIONS, LLC GS-00F-099DA 240-298-5702 WINTER GARDEN ,FL s/dv
EARTH SYSTEMS, INC. 47QRAA21D0009 9042470740 JACKSONVILLE BEACH ,FL s/d
EASTERN RESEARCH GROUP, INC. GS-00F-079CA 7742491622 LEXINGTON ,MA o
ECO & ASSOCIATES INC GS-10F-0371U 714-289-0995 TUSTIN ,CA s/w/d/8a
ECO RESOURCE GROUP, LLC GS-00F-017AA 206-478-6881 BAINBRIDGE ISLAND ,WA s/w/wo/ew/d
ECOANALYSTS INC       GS-10F-0050U 2088822588 MOSCOW ,ID s
ECOCHEM, INC GS-10F-0103T (206)233-9332 SEATTLE ,WA s  
ECODIT LLC 47QRAA19D00DN 703-841-1883 ARLINGTON ,VA s
ECOLOGICAL SOLUTIONS GROUP LLC GS-10F-0002V 406-777-1881 STEVENSVILLE ,MT s
ECOLOGY AND ENVIRONMENT, INC. 47QRAA18D0073 (202)303-2613 ARLINGTON ,VA o  
ECONOMIC CONSULTANTS OREGON, LTD. 47QRAA20D007U 503-200-5076 PORTLAND ,OR s
ECOPLAN ASSOCIATES INC GS-10F-0147T (480)733-6666 MESA ,AZ s  
ECORP CONSULTING, INC GS-10F-0010P 916-782-9100 ROCKLIN ,CA 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
ECOSYSTEM SCIENCES GS-00F-277DA 2083830226 BOISE ,ID s
ECS FEDERAL, LLC GS-00F-072CA 571-232-1412 FAIRFAX ,VA o
ECS MID-ATLANTIC, LLC 47QRAA19D006M 703-471-4800 CHANTILLY ,VA o
EHS-INTERNATIONAL, INC. GS-10F-0400S 2067317401 SEATTLE ,WA s/d
EKNA SERVICES, INC. 47QRAA20D0078 (808)695-6237 HONOLULU ,HI s/w/wo    
EL DORADO ENGINEERING, INC.       47QRAA18D00E6 801-966-8288 WEST JORDAN ,UT s
ELYON INTERNATIONAL, INC. GS-00F-203GA (360) 696-5892 VANCOUVER ,WA s/w/wo/ew/v/d
ENDPOINT SOLUTIONS CORP. GS-10F-133BA 414-858-1204 FRANKLIN ,WI s
ENDYNA, INC.       GS-00F-0017Y 7038488840 MC LEAN ,VA s/w/wo/ew/d
ENGINEERING & ENVIRONMENT, INC. 47QRAA21D0005 (757)457-0002 VIRGINIA BEACH ,VA s    
ENGINEERING/REMEDIATION RESOURCES GROUP, INC. GS-10F-0294R 425-658-5361 MARTINEZ ,CA o
ENTERPRISE RESOURCE PLANNING INTERNATIONAL, LLC 47QRAA19D009W 3014900080 LAUREL ,MD o
ENVIROAPPLICATIONS, INC. GS-10F-0039X 619.291.3636 SAN DIEGO ,CA s
ENVIRON-CIVIL ENGINEERING, LTD GS-00F-317CA (410)461-6451 COLUMBIA ,MD s/d  
ENVIRONMENTAL BUSINESS PARTNERS, LLC GS-10F-0363T 9046124501 YULEE ,FL s/dv
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 & TECHNOLOGY, INC.       47QRAA21D005G (352)332-0444 GAINESVILLE ,FL o    
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 ENGINEERING & MEASUREMENT SERVICES, INC. GS-10F-075AA (352)262-0802 GAINESVILLE ,FL s/w/wo/ew/d  
ENVIRONMENTAL GROUP SERVICES, LTD. GS-10F-0457Y 312-447-1200 CHICAGO ,IL s
ENVIRONMENTAL HEALTH AND SAFETY SOLUTIONS, LLC 47QRAA21D004K 904-673-4858 PARKTON ,MD s/w/wo/ew
ENVIRONMENTAL INCENTIVES, LLC GS-00F-193DA 530-541-2980 SOUTH LAKE TAHOE ,CA s
ENVIRONMENTAL LAW INSTITUTE, THE GS-10F-0330P 2029393834 WASHINGTON ,DC o
ENVIRONMENTAL MANAGEMENT AND PLANNING SOLUTIONS, INC. GS-10F-0412S 14155400440 BOULDER ,CO 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 MANAGEMENT SUPPORT, INC 47QRAA18D00C7 3015895318 SILVER SPRING ,MD s
ENVIRONMENTAL PLANNING GROUP, LLC GS-10F-0046N (602)956-4370 PHOENIX ,AZ s  
ENVIRONMENTAL PLANNING STRATEGIES, INC. GS-10F-0046R 5633326870 DAVENPORT ,IA 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 RESOURCE CENTER, INC.       GS-10F-0346X (919) 469-1585 CARY ,NC s
ENVIRONMENTAL SCIENCE ASSOCIATES GS-10F-0191M 916.769.9303 SAN FRANCISCO ,CA o
ENVIRONMENTAL SYNECTICS, INC GS-10F-043BA 916-737-4011 SACRAMENTO ,CA s/h
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
ENVIROSYSTEMS MANAGEMENT, INC. GS-10F-0358M (928) 226-0236 FLAGSTAFF ,AZ s/w/wo
EPSILON SYSTEMS SOLUTIONS, INC. 47QRAA21D005F 619-702-1700 SAN DIEGO ,CA o
EPSILON SYSTEMS SOLUTIONS, INC. GS-00F-0035N 619-702-1700 SAN DIEGO ,CA o
ERICA LANE ENTERPRISES, INC. GS-10F-0186R 256-536-7117 HUNTSVILLE ,AL s/w/8a/h
ERM-WEST, INC 47QRAA18D0059 (907)264-4454 WALNUT CREEK ,CA o  
ERO RESOURCES CORPORATION 47QRAA21D0075 (303)830-1188 DENVER ,CO s/w/wo/d    
ESP ASSOCIATES, INC. GS-10F-189BA 336-232-5213 FORT MILL ,SC o
ESPINOZA CULTURAL SERVICES, LLC 47QRAA20D0062 800-511-8685 LA JARA ,CO s/w/wo/ew/d/8a/h
ESS GROUP, INC. GS-10F-0080W 401-330-1260 RIVERSIDE ,RI s
EWING INDUSTRIAL SERVICES, LLC 47QRAA21D000S 3618826525 CORPUS CHRISTI ,TX s/d
F3 SOLUTIONS, LLC GS-10F-195BA 478-971-1343 WARNER ROBINS ,GA s/w/wo/ew/d
FALCONA MANAGEMENT & TECHNOLOGY, L L C GS-00F-272CA (210) 704-1486 SAN ANTONIO ,TX s/d/8a
FAR WESTERN ANTHROPOLOGICAL RESEARCH GROUP, INC. GS-10F-0183P 530-756-3941 DAVIS ,CA s
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FPM GROUP, LTD. GS-00F-104CA 631-737-6200 BOHEMIA ,NY s
FRED PHILLIPS CONSULTING LLC GS-10F-0024W (928)773-1530 FLAGSTAFF ,AZ s  
FREESTONE ENVIRONMENTAL SERVICES, INC. 47QRAA18D00GS (509)943-5222 RICHLAND ,WA s  
FUGRO EARTHDATA, INC. GS-10F-0444P (301)948-8550 FREDERICK ,MD o  
G B K PARTNERSHIP, LLC, THE GS-10F-0413M 405-285-5349 OKLAHOMA CITY ,OK s/d/h
G2 ARCHAEOLOGY 47QRAA20D001G 3102783100 RENO ,NV s/w/wo/d
GANNETT FLEMING, INC. GS-00F-114CA 703- 277-9506 CAMP HILL ,PA o
GARCIA AND ASSOCIATES GS-10F-0389R 4154585803 SAN ANSELMO ,CA 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
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. GS-00F-057CA 7039953733 FALLS CHURCH ,VA o
GENWEST SYSTEMS, INC.       GS-00F-0002W 425-771-2700 EDMONDS ,WA s/dv
GEOENGINEERS, INC. 47QRAA18D00E3 425.861.6000 REDMOND ,WA o
GEOGRAPHIC RESOURCE SOLUTIONS INC GS-10F-0451N 7078228005 ARCATA ,CA s
GEOMORPH INFORMATION SYSTEMS LLC GS-10F-0236X 619-787-7974 SAN DIEGO ,CA s/w/wo/ew/d/h
GEOSYNTEC CONSULTANTS INC GS-10F-0106M 919-424-1823 KENNESAW ,GA o
GEOSYSTEMS ANALYSIS, INC. GS-10F-0209Y 520-628-9330 TUCSON ,AZ s
GIBB EPIDEMIOLOGY CONSULTING LLC 47QRAA19D004F 703-888-6059 ARLINGTON ,VA s/v
GLE ASSOCIATES, INC. GS-10F-0326X (813)241-8350 TAMPA ,FL s  
GLOBAL CONSULTING INC. GS-10F-0130X (925) 626-7121 GREENBELT ,MD s/w/wo
GLOBAL SYSTEMS ENGINEERING, LLC 47QRAA20D0060 703-915-2338 ALEXANDRIA ,VA s/h
GOLDBELT C6, LLC 47QRAA19D00CS (757)550-2121 CHESAPEAKE ,VA s/d/8a
GRANT THORNTON PUBLIC SECTOR LLC 47QRAA19D0085 703-637-2835 ARLINGTON ,VA o
GRAVITATE LIMITED LIABILITY COMPANY 47QRAA18D004C (307)680-3637 GRAND PRAIRIE ,TX s/w/wo/ew/d  
GRAY & PAPE, INC. 47QRAA21D006G 5133001515 CINCINNATI ,OH s
GRB ENVIRONMENTAL SERVICES INC GS-10F-0284X 212-564-8640 NEW YORK ,NY s/w
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GREAT LAKES ENVIRONMENTAL CENTER, INC. GS-10F-015AA 231-941-2230 TRAVERSE CITY ,MI s
GREEN AND SUSTAINABLE SERVICES, LLC 47QRAA19D0015 940-597-3723 PONDER ,TX s/w/wo/ew
GREEN REVIEWS INC 47QRAA19D0004 2013461776 LEONIA ,NJ s/w/wo/ew
GREEN STREET ENVIRONMENTAL, LLC 47QRAA18D000N (202)234-8933 BALTIMORE ,MD s  
GREENMAN-PEDERSEN, INC. 47QRAA21D004M 518-209-4823 BABYLON ,NY o
GREENMAN-PEDERSEN, INC. GS-23F-0032S 518-209-4823 BABYLON ,NY o
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 808-393-7167 FLEMINGTON ,NJ s/d/8a
GULF SOUTH RESEARCH CORPORATION 47QRAA19D006W 2257578088 BATON ROUGE ,LA s/w/wo/ew/d
GUTIERREZ CANALES ENGINEERING, P.C. 47QRAA21D003J (928)217-2419 YUMA ,AZ s/w/wo    
H & L ENVIRONMENTAL SERVICES, LLC 47QRAA21D006J 8656175500 MAXTON ,NC s/d/8a/h
H R A INC GS-10F-0045T (702)228-8844 CEDAR CITY ,UT s/w/wo  
HAMER ENVIRONMENTAL L.P. GS-10F-087AA (360)899-5156 MOUNT VERNON ,WA s  
HARBOR ENVIRONMENTAL, INC. 47QRAA21D001J 5016638800 LITTLE ROCK ,AR s/w/wo/ew/d
HARRIS ENVIRONMENTAL GROUP, INC. GS-10F-0457R 52006287648 TUCSON ,AZ s/w/wo/ew/d/8a/h
HARTGEN ARCHEOLOGICAL ASSOCIATES INC GS-10F-0424Y 518.283.0534 RENSSELAER ,NY s
HAWKS ALOFT INC GS-10F-0191T (505)828-9455 ALBUQUERQUE ,NM o  
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
HEALTHY BUILDINGS INTERNATIONAL (VA), INC. 47QRAA20D0011 703-323-4400 FAIRFAX ,VA s
HEALTHY HOUSING SOLUTIONS, INC. 47QRAA18D00H1 443-539-4152 COLUMBIA ,MD s
HELIX ENVIRONMENTAL PLANNING, INC. GS-10F-0020V 619.462.1515 LA MESA ,CA o
HGS ENGINEERING, INC. GS-10F-0039P 256-236-1848 ANNISTON ,AL s/dv
HHM & ASSOCIATES, INC. GS-10F-0244Y 512-478-8884 AUSTIN ,TX s/w/wo
HOMEYER CONSULTING SERVICES, INC. 47QSWA21D001T 978-569-2460 TEWKSBURY ,MA s
HORSLEY WITTEN GROUP, INC. GS-10F-0304T 508-833-6600 SANDWICH ,MA s
HOWER CONSULTING GROUP, INC. GS-10F-0023V 8006835145 SAN DIEGO ,CA s/dv
HSG, LLC GS-10F-230BA 702-271-4673 LAS VEGAS ,NV s/w/wo/ew/d
HUNTER RESEARCH, INC GS-10F-018AA 609-695-0122 X 100 TRENTON ,NJ s
HYDROGEOLOGIC, INC. 47QRAA18D00CW 7037364551 RESTON ,VA s
HYDROS CONSULTING INC. GS-10F-220BA (303)284-1841 BOULDER ,CO s  
HYDROSOLUTIONS INC GS-10F-0172X 4064436169 HELENA ,MT s/dv
HZW ENVIRONMENTAL CONSULTANTS, LLC       47QRAA19D00C6 330-208-2717 MENTOR ,OH s/w/wo
I.M. SYSTEMS GROUP, INC. GS-00F-311CA 240-833-1889 ROCKVILLE ,MD o
IAP WORLD SERVICES INC GS-35F-407GA 321-784-7113 CAPE CANAVERAL ,FL o
ICF INCORPORATED, L.L.C. GS-00F-010CA 703-934-3632 FAIRFAX ,VA o
INDEPENDENT STRATEGIC MANAGEMENT SOLUTIONS, INC. 47QRAA21D0087 (509)539-3229 RICHLAND ,WA s/w/wo/ew/d/8a    
INDUSTRIAL ECONOMICS, INCORPORATED 47QRAA20D0044 (617) 354-0074 CAMBRIDGE ,MA o
INDUSTRIAL ECONOMICS, INCORPORATED GS-10F-0061N (617) 354-0074 CAMBRIDGE ,MA o
INDUSTRIAL HYGIENE RESOURCES, LTD GS-10F-0176R 2083238287 BOISE ,ID s
INSIGNIA ENVIRONMENTAL 47QRAA20D005U 650-321-6787 MENLO PARK ,CA s/w/wo
INTEGRA GOVERNMENT SERVICES INTERNATIONAL LLC GS-10F-083CA 202-898-4110 WASHINGTON ,DC s/dv
INTEGRATED STATISTICS INCORPORATED GS-10F-0395N 5085408560 WOODS HOLE ,MA s/w/wo
INTERNATIONAL BUSINESS SALES & SERVICES CORPORATION 47QRAA18D0099 301-942-9016 SILVER SPRING ,MD s/w/wo/ew/d
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J&M GLOBAL SOLUTIONS LLC GS-10F-0374X 5719706690 ALEXANDRIA ,VA s/w/wo/ew
JACOBS ENGINEERING GROUP INC. GS-00F-0025M (571) 218-1304 ARLINGTON ,VA o
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JENKINS ENVIRONMENTAL CONSULTING, LLC GS-00F-058DA (866)839-6548 AUSTIN ,TX s  
JENSEN HUGHES, INC. GS-00F-006CA 425-217-1123 BALTIMORE ,MD o
JGMS GOVERNMENT SERVICES, LLC GS-00F-0014Y 970-254-1354 GRAND JUNCTION ,CO s/d/8a
JOHNSON COMPANY, INC. THE GS-10F-0481P (802)229-4600 MONTPELIER ,VT s  
JOHNSON, MIRMIRAN & THOMPSON, INC. GS-00F-194CA 410-329-3100 HUNT VALLEY ,MD o
JOYCE COFFEE CONSULTING LLC 47QRAA20D004R 3128949028 CHICAGO ,IL s/w/wo
KANE ENVIRONMENTAL, INC. GS-10F-0061W 2066910476 SEATTLE ,WA s
KAPUR ENERGY ENVIRONMENT ECONOMICS, LLC 47QSHA20D000W 434-295-3018 CHARLOTTESVILLE ,VA s/w/wo/ew/d
KELLER-BLIESNER ENGINEERING, LLC       47QRAA18D004Q 435-753-5651 LOGAN ,UT s
KEMRON ENVIRONMENTAL SERVICES, INC. 47QRAA20D000E 404-601-6930 ATLANTA ,GA s
KENIFIC GROUP INC, THE 47QRAA19D00C7 571-636-4002 FAIRFAX ,VA s/d
KERES CONSULTING, INC. GS-00F-154CA 505 8372104 ALBUQUERQUE ,NM s/d
KIER, WILLIAM M ASSOCIATES       GS-10F-0124U 415.721.7548 SAN RAFAEL ,CA s
KLAMATH WILDLIFE RESOURCES GS-10F-0399Y 530-244-5652 REDDING ,CA s
KLEINSCHMIDT ASSOCIATES 47QRAA18D005P 717-576-6518 PITTSFIELD ,ME o
KMEA 47QRAA20D006G 619-787-0515 NATIONAL CITY ,CA o
KMPOWER CONSULTING LLC GS-10F-102AA (303)710-0876 GREELEY ,CO s/w/wo  
L S A ASSOCIATES, INC. 47QRAA18D009Y 949-553-0666 IRVINE ,CA o
LARSON DESIGN GROUP, INC. 47QRAA19D00CU 412-528-0525 WILLIAMSPORT ,PA 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
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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
LINDAHL REED, INC. 47QRAA18D00GR 541/638-9264 REDMOND ,OR s/w/wo/ew/d/8a
LINEBACH FUNKHOUSER INC 47QRAA18D0035 502-895-5009 LOUISVILLE ,KY s
LINK TECHNOLOGIES INC 47QRAA20D0096 301-983-6878 GERMANTOWN ,MD s/w/wo
LJB INC GS-00F-049CA 937-259-5000 MIAMISBURG ,OH o
LOGAN SIMPSON DESIGN INC. GS-10F-0063P (480)967-1343 TEMPE ,AZ o  
LOGISTICS MANAGEMENT INSTITUTE       GS-00F-0026M (703)917-7524 TYSONS ,VA o  
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LOS ALAMOS TECHNICAL ASSOCIATES, INC. GS-10F-0017V (505)884-3800 ALBUQUERQUE ,NM s  
LOW IMPACT DEVELOPMENT CENTER (LID), INC.       GS-10F-0084N 3019825559 BELTSVILLE ,MD o
LPES, INC GS-10F-204BA (757)357-0730 SMITHFIELD ,VA s  
LRS FEDERAL LLC GS-10F-0360T (410) 544-3570 SEVERNA PARK ,MD s/dv
LYNKER TECHNOLOGIES LLC GS-00F-125CA 7034315855 LEESBURG ,VA o
M B TECHNICAL SERVICES       GS-00F-028GA (562)426-3453 LONG BEACH ,CA s/d/8a  
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
MANTECH SRS TECHNOLOGIES, INC. GS-10F-0054R 703-218-6440 HERNDON ,VA o
MARINE TAXONOMIC SERVICES LTD 47QRAA21D000T 7604108392 SAN MARCOS ,CA s
MARSH & ASSOCIATES LLC       GS-10F-0085V 480-459-7864 TEMPE ,AZ s
MARSTEL-DAY, LLC GS-00F-070CA 7038395513 FREDERICKSBURG ,VA s/h
MASON BRUCE & GIRARD INC GS-10F-0295M 5032243445 PORTLAND ,OR s/d
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  
MDB, INC. 47QRAA20D0028 202-331-0060 WASHINGTON ,DC s
MDB, INC. GS-00F-0001S 202-331-0060 WASHINGTON ,DC s
MEAD AND HUNT, INC. GS-00F-230DA 906-629-1360 MIDDLETON ,WI o
MECA CONSULTING, INC. GS-10F-0229U 9258086700 OAKLAND ,CA s
MECX, INC. GS-10F-0328R 713-585-7000 HOUSTON ,TX s/dv
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MICHAEL BAKER INTERNATIONAL, INC. GS-00F-0032M 703-483-0029 ALEXANDRIA ,VA o
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MIDWEST ASSISTANCE PROGRAM, INC. GS-10F-0025T 6605622575 MARYVILLE ,MO o
MILLER ENGINEERS, INC. 47QRAA21D007C (505)325-7535 ALBUQUERQUE ,NM o    
MIRACORP, INC. GS-10F-233AA 571-589-8970 MESA ,AZ s/w/wo/ew/dv/d
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
MUSTARDSEED CULTURAL AND ENVIRONMENTAL SERVICES, LLC GS-10F-0009U 8163332424 KANSAS CITY ,MO s/w/d
MXI ENVIRONMENTAL SERVICES LLC GS-10F-0013Y (267)590-0043 ABINGDON ,VA s  
NATIVE-X, INC. ARCHAEOLOGICAL SERVICES GS-10F-0174U 7755600808 LINCOLN ,CA s/v
NATURAL RESOURCE INNOVATIONS GMBH 47QRAA19D002P (622)510-694 HEIDELBERG ,
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NATURES IMAGE, INC. GS-10F-045BA 9496804400 LAKE FOREST ,CA s/w/wo
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NELSON ENGINEERING CO. GS-00F-324CA 3214491128 MERRITT ISLAND ,FL s
NEVADA SYSTEM OF HIGHER EDUCATION
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NEW SOUTH ASSOCIATES, INC. GS-10F-0230N 7704984155 STONE MOUNTAIN ,GA s/w/wo/ew
NEXGEN TECHNOLOGIES, INC. GS-10F-0270W 720-377-1800 LAKEWOOD ,CO s
NICHOLS CONSULTING ENGINEERS, CHTD. 47QRAA18D008A 7753294955 RENO ,NV s
NOBLIS, INC. GS-00F-096DA (703) 610-2290 RESTON ,VA o
NODI SOLUTIONS LLC 47QRAA18D00GK 5712335916 ROCKVILLE ,MD s/w/wo
NOREAS, INC. GS-00F-373GA 714-955-3120 IRVINE ,CA s/d/8a
NORMANDEAU ASSOCIATES INC GS-10F-0319M 603-637-1115 BEDFORD ,NH o
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NORTH WIND RESOURCE CONSULTING, LLC GS-10F-111BA 208-419-4152 IDAHO FALLS ,ID s/d/8a
NORTHLAND RESEARCH, INC GS-10F-0070W 928-774-5057 FLAGSTAFF ,AZ s
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ONEIDA TOTAL INTEGRATED ENTERPRISES, LLC 47QRAA20D009B 414-257-4200 MILWAUKEE ,WI s/d
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OTTERY GROUP, INC., THE GS-10F-0061X 2402747710 KENSINGTON ,MD s
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PACIFIC WATERSHED ASSOCIATES INC GS-10F-0244V (707)839-5130 MCKINLEYVILLE ,CA s  
PACIFIC WESTERN TECHNOLOGIES, LTD.       47QRAA21D005V (303)274-5400 WHEAT RIDGE ,CO s/d    
PACIFIC WESTERN TECHNOLOGIES, LTD. GS-00F-0002M 3032745400 WHEAT RIDGE ,CO s/w/d
PALEOWEST, L.L.C.       GS-10F-0116V 602-261-7253 PHOENIX ,AZ s
PANAMERICAN CONSULTANTS, INC. GS-10F-0196P 2052488767 TUSCALOOSA ,AL s
PANORAMA ENVIRONMENTAL, INC. 47QRAA20D0091 858-349-8883 SAN FRANCISCO ,CA s/w/wo/ew/d
PARADIGM ENVIRONMENTAL 47QRAA18D003K 7039571908 OAKTON ,VA s
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PARSONS GOVERNMENT SERVICES INC. 47QRAA19D000A (210) 477-1616 PASADENA ,CA o
PARTNER ASSESSMENT CORPORATION 47QRAA18D00EE 7738405070 TORRANCE ,CA o
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PERIKIN ENTERPRISES, LLC GS-00F-003AA 505-333-0501 ALBUQUERQUE ,NM s/d/8a/h
PERSPECTA SERVICES & SOLUTIONS INC. GS-00F-296CA 571-521-7776 HERNDON ,VA o
PETERSON, KATHRYN 47QRAA18D008H 909-630-8279 AGUANGA ,CA s/w/wo
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PHASE ASSOCIATES, LLC 47QRAA20D007Z 973-808-4888 LIVINGSTON ,NJ s/w
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PROJECT ENHANCEMENT CORPORATION       GS-00F-0004T 240-686-3059 GERMANTOWN ,MD s
PROJECT TIME & COST, LLC 47QRAA19D003A 7702000192 ATLANTA ,GA s
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QUANTECH, INC. 47QRAA18D00CZ 2403972993 ROCKVILLE ,MD s
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QUANTUM SPATIAL, INC. 47QTCA18D001X 608-556-2580 SAINT PETERSBURG ,FL o
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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
RESEARCH PLANNING, INC. 47QRAA19D003K 803-256-7322 COLUMBIA ,SC s/w/wo
RESEARCH PLANNING, INC. GS-10F-0082N 803 256-7322 COLUMBIA ,SC s/w
RESEARCH TRIANGLE INSTITUTE GS-00F-354CA 919-541-6543 RESEARCH TRIANGLE P ,NC o
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
RESOURCE RECYCLING SYSTEMS, INCORPORATED GS-10F-038CA (734)996-1361 ANN ARBOR ,MI s/d  
RESPEC COMPANY, LLC GS-00F-0078N (605) 394-6400 RAPID CITY ,SD o
RHEA ENGINEERS & CONSULTANTS, INC. 47QRAA20D0051 724-443-4111 VALENCIA ,PA s/w/wo
RHITHRON ASSOCIATES, INC. GS-10F-0138V 4067211977 MISSOULA ,MT s/w
RICHARD GRUBB & ASSOCIATES, INC. GS-00F-057DA 609-655-0692 CRANBURY ,NJ s/w/wo/ew
RIVERSIDE TECHNOLOGY, INC. GS-00F-0026P 9702149419 FORT COLLINS ,CO o
RMEC ENVIRONMENTAL INC GS-10F-0147P 8014673661 SALT LAKE CITY ,UT s
ROBERT AND COMPANY GS-00F-210GA 4045774000 ATLANTA ,GA s/dv
ROBINSON AND NOBLE, INC. GS-10F-010CA 253.475.7711 TACOMA ,WA s
ROMEM AQUA SYSTEMS COMPANY, INC 47QRAA20D005A 7036432952 WOODBRIDGE ,VA s/dv
ROSS & ASSOCIATES ENVIRONMENTAL CONSULTING, LTD. GS-00F-0045P 2064471805 SEATTLE ,WA s
RPS GROUP, INC. GS-10F-0438R 401-789-6224 HOUSTON ,TX o
RURAL AND TRIBAL ENVIRONMENTAL SOLUTIONS GS-10F-0257R (406)491-2521 BILLINGS ,MT s/w/wo  
RURAL COMMUNITY ASSISTANCE CORPORATION GS-10F-0255X 9167081896 WEST SACRAMENTO ,CA o
RUTH VILLALOBOS & ASSOCIATES, INC. GS-00F-432GA (909)245-1140 ALTA LOMA ,CA s/w/wo/d  
S C & A, INC. 47QRAA20D002W 7038936600 ARLINGTON ,VA s
S P CRAMER & ASSOCIATES INC 47QRAA19D0045 (888) 224-1221 PORTLAND ,OR s
S.S. PAPADOPULOS & ASSOCIATES, INC. GS-10F-0462M 3017188900 ROCKVILLE ,MD s
SECURIFENSE, INC.       GS-00F-186GA 412-973-9998 HENDERSONVILLE ,NC s/dv
SEQUOIA ECOLOGICAL CONSULTING, INC. 47QRAA18D0024 925-989-7011 DANVILLE ,CA s/w/wo/ew/d
SERES ENGINEERING & SERVICES LLC 47QRAA18D00ES (843) 216-8531 CHARLESTON ,SC s/d/8a
SES, INC. GS-10F-0460M 9133070046 LENEXA ,KS s
SHIPLEY GROUP, INC., THE 47QRAA19D00CF 888-270-2157 FARMINGTON ,UT s
SIGNATURE SCIENCE, LLC GS-00F-105CA (877) 474-4724 AUSTIN ,TX o
SKEO SOLUTIONS , INC. 47QRAA20D0027 434-975-6700 CHARLOTTESVILLE ,VA s
SKEO SOLUTIONS , INC. GS-10F-0309N 434-226-4284 CHARLOTTESVILLE ,VA s
SOIL AND LAND USE TECHNOLOGY, INC.
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SOL ENGINEERING SERVICES, LLC GS-00F-223GA 601-961-1415 JACKSON ,MS s/d/h
SOL SOLUTIONS, LLC 47QRAA18D00AF 480-544-7045 TEMPE ,AZ s/v/d/8a
SOLANO ARCHAEOLOGICAL SERVICES LLC
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GS-10F-0342T 707-718-1416 DIXON ,CA s
SOLUTIENT TECHNOLOGIES, LLC 47QRAA18D008Q 3304975905 NORTH CANTON ,OH s/d
SOLUTION FOUNDRY, LLC, THE       GS-10F-0250U 4049153199 WOODSTOCK ,GA s
SOLV LLC 47QRAA18D00DH 7037604801 MC LEAN ,VA s
SONOMA TECHNOLOGY, INC. 47QRAA18D00D1 707-665-9900 PETALUMA ,CA s
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SOUTHEASTERN ARCHAEOLOGICAL RESEARCH INC GS-10F-0255Y 352-333-0049 ORLANDO ,FL s/w/wo
SOUTHWEST HAZARD CONTROL, INC. GS-10F-115BA 5206223607 TUCSON ,AZ s/w/d
SPATIAL INFORMATICS GROUP LLC 47QRAA20D004S 510-427-3571 PLEASANTON ,CA s
SPECPRO MANAGEMENT SERVICES, LLC       47QRAA19D007P 210-424-2110 SAN ANTONIO ,TX s/d/8a
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  
SRA INTERNATIONAL, INC. GS-00F-256CA (703) 995-3733 CHANTILLY ,VA o
SRC, INC. 47QRAA19D005N 3154528165 NORTH SYRACUSE ,NY o
STANTEC CONSULTING SERVICES INC. 47QRAA19D000Q 916-418-8338 BROOMFIELD ,CO o
STATISTICAL RESEARCH, INC. GS-10F-0396P 1-520-721-4309 TUCSON ,AZ s/w/wo/ew
STEARNS, CONRAD AND SCHMIDT CONSULTING ENGINEERS, INC. 47QRAA20D002R 5713532020 LONG BEACH ,CA o
STETSON ENGINEERS, INC       GS-10F-0404P (415)457-0701 SAN RAFAEL ,CA s  
STILLWATER ECOSYSTEM, WATERSHED & RIVERINE SCIENCES GS-10F-0216S 5108488098 BERKELEY ,CA s/w/wo
STRATA G, LLC GS-00F-004CA 8659343400 KNOXVILLE ,TN o
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STREET LEGAL INDUSTRIES, INC 47QRAA19D00A7 865-483-6373 OAK RIDGE ,TN s/w/wo/ew/d/8a/h
SUNDANCE CONSULTING, INC.       47QRAA18D00AS 619-333-3960 POCATELLO ,ID s/w/wo/d
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SUSTAINABLE RESOURCES GROUP INTN'L, INC. GS-10F-0373L 8083560552 KAILUA ,HI s/w/wo
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TECHNICAL RESOURCES GROUP INC GS-10F-0300W 208-528-8895 IDAHO FALLS ,ID s/w
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TELEDYNE BROWN ENGINEERING, INC. GS-00F-155CA 2567261211 HUNTSVILLE ,AL o
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TERRANEAR PMC LLC GS-00F-322CA (832)265-4900 EXTON ,PA s/d  
TERRANEXT, LLC 47QRAA21D004Y (303)399-6145 DENVER ,CO s/w/wo/ew/d    
TERWILLIGER CONSULTING, INC. 47QRAA21D003F (757)787-3974 LOCUSTVILLE ,VA s/w/wo    
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
TEXAS A&M AGRILIFE RESEARCH GS-00F-059GA (301)913-5000 COLLEGE STATION ,TX o  
THRIVAL COMPANY LLC, THE 47QRAA18D009X 208-991-8264 AUSTIN ,TX s/w/wo/d
TIDEWATER, INC. GS-10F-0260R 410-540-8700 ELKRIDGE ,MD o
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TITAN ENVIRONMENTAL SOLUTIONS, INC 47QRAA20D003Q 714-860-8965 FULLERTON ,CA s/d/8a
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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  
TRINITY CONSULTANTS, INC.       GS-10F-0256N (972)661-8100 DALLAS ,TX o  
TRINITY ENGINEERING ASSOCIATES, INC. GS-10F-0306P (513) 620-7115 CINCINNATI ,OH s/wo/ew/8a
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  
UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL 47QRAA18D00CA 919-966-3411 CHAPEL HILL ,NC o
USFIN DEVELOPMENT, LLC GS-10F-0310X 2524239901 SOUTHERN SHORES ,NC s/dv/d/h
VANASSE HANGEN BRUSTLIN INC GS-00F-116CA 804-441-7439 WILLIAMSBURG ,VA o
VERNADERO GROUP INCORPORATED GS-10F-0033T 4803151000 PHOENIX ,AZ s/v
VERSAR, INC. 47QRAA18D00F7 703-642-6793 SPRINGFIELD ,VA o
VISION PLANNING & CONSULTING, LLC 47QRAA19D000L (240)893-8719 FULTON ,MD s/w/wo/ew/d/8a  
VISTA SCIENCES CORPORATION 47QRAA18D009E 575-526-9558 LAS CRUCES ,NM s/d
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
WEST KERN ENVIRONMENTAL CONSULTING, LLC GS-00F-408GA 8009301980 BAKERSFIELD ,CA s/w/wo/ew/d/8a
WESTERN ECOSYSTEMS TECHNOLOGY, INC.       GS-10F-072BA (307)634-1756 CHEYENNE ,WY o  
WESTON SOLUTIONS, INC. 47QRAA19D00BT 7039697418 ALBUQUERQUE ,NM o
WESTWATER ENGINEERING, INC. 47QRAA20D002M 9702417076 GRAND JUNCTION ,CO s/w/wo/ew
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
WILDLIFE SPECIALISTS, LLC GS-10F-231AA 5704396898 WELLSBORO ,PA s
WINDJAMMER ENVIRONMENTAL LLC GS-00F-180GA 314-324-6042 OXON HILL ,MD s/d/8a
WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. GS-00F-314CA (610)877-6109 BLUE BELL ,PA o  
WOODARD & CURRAN, INC. GS-10F-0086M 800.426.4262 PORTLAND ,ME o
WOODS CANYON ARCHAEOLOGICAL CONSULTANTS INC GS-10F-0446Y (970)562-4884 CORTEZ ,CO s  
WOOLPERT, INC. GS-00F-0038N 937-531-1309 DAYTON ,OH o
WSP USA INC. 47QRAA19D003Q (212)465-5023 NEW YORK ,NY o  
WSP USA SOLUTIONS INC. 47QRAA18D002R 202-303-2613 WASHINGTON ,DC o
XCEL ENGINEERING, INC. GS-10F-0211P 865-481-3200 OAK RIDGE ,TN s/dv
ZEPHYR ENVIRONMENTAL CORP GS-00F-008GA 512-879-6639 AUSTIN ,TX s
ZIA ENGINEERING & ENVIRONMENTAL CONSULTANTS, L.L.C. GS-10F-0391N 575-680-2337 LAS CRUCES ,NM s/d