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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).
598 contractors

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ZIA ENGINEERING & ENVIRONMENTAL CONSULTANTS LLC 47QRAA21D00AN 575-680-2337 LAS CRUCES ,NM s/d
ZARA ENVIRONMENTAL LLC 47QRAA23D0006 512-291-4555 SAN MARCOS ,TX s/w/wo/ew/v/d
XCEL ENGINEERING, INC. 47QRAA22D00D0 865-766-8543 OAK RIDGE ,TN s/dv
XCEL ENGINEERING, INC. GS-10F-0211P 865-481-3200 OAK RIDGE ,TN s/dv
WSP USA SOLUTIONS INC 47QRAA18D002R 202-303-2613 WASHINGTON ,DC o
WSP USA SOLUTIONS INC 47QRAA18D0073 (202)303-2613 WASHINGTON ,DC o  
WSP USA ENVIRONMENT & INFRASTRUCTURE INC. GS-00F-314CA 610-877-6109 BLUE BELL ,PA o
WOOLPERT, INC. GS-35F-0425P 9375311309 BEAVERCREEK ,OH o
WOODS CANYON ARCHAEOLOGICAL CONSULTANTS, INC. GS-10F-0446Y (970)564-9640 CORTEZ ,CO s  
WINDJAMMER ENVIRONMENTAL LLC GS-00F-180GA 314-324-6042 SUITLAND ,MD s/d/8a
WILLIAM M KIER       GS-10F-0124U 415.721.7548 SAN RAFAEL ,CA s
WHITE SHIELD, INC. GS-10F-0357U 509-547-0100 PASCO ,WA s/d/ai
WETLAND STUDIES AND SOLUTIONS, INC. GS-10F-0273W 703-679-5609 GAINESVILLE ,VA o
WESTWATER ENGINEERING, INC. 47QRAA20D002M 9702417076 GRAND JUNCTION ,CO s/w/wo/ew
WESTON SOLUTIONS, INC. 47QSHA18D0016 773-255-8240 ALBUQUERQUE ,NM o
WESTERN ECOSYSTEMS TECHNOLOGY, INC       GS-10F-072BA 307-634-1756 CHEYENNE ,WY o
WATER, CIVIL AND ENVIRONMENTAL INCORPORATED GS-00F-386GA (208) 319-9744 BOISE ,ID s/w/wo/ew/d/8a
WATER & ENVIRONMENTAL TECHNOLOGIES, INC. 47QRAA22D00DS 509-592-3289 BUTTE ,MT s
WATER & AIR RESEARCH, INC. 47QRAA22D00CW 352-372-1500 GAINESVILLE ,FL s
WARTHOG INFORMATION SERVICES LLP 47QTCA24D0032 360-223-4843 BELLINGHAM ,WA s
VISION PLANNING AND CONSULTING LLC 47QRAA19D000L 240-893-8719 FULTON ,MD s/w/wo/ew/d
VERSAR, INC. 47QRAA18D00F7 * 540-746-2911 WASHINGTON ,DC o  
VERSAR, INC. 47QRAA22D0055 703-587-2513 WASHINGTON ,DC o
VERNADERO GROUP INC GS-10F-0033T 4803151000 PHOENIX ,AZ s/v
VERITAS MANAGEMENT GROUP, INC. 47QTCA22D007G 4048441326 ALPHARETTA ,GA s/w/wo/ew/d/8a/8aS
VANASSE HANGEN BRUSTLIN, INC. GS-10F-0481P (802)229-4600 WATERTOWN ,MA o  
VANASSE HANGEN BRUSTLIN INC GS-00F-116CA 804-441-7439 WILLIAMSBURG ,VA o
USFIN DEVELOPMENT LLC GS-10F-0310X 2524239901 KITTY HAWK ,NC s/dv/d/h
US&S INC 47QSHA23D000V 864-233-8035 GREENVILLE ,SC s/dv/d
UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL 47QRAA18D00CA 919-962-5523 CHAPEL HILL ,NC o
UNIVERSAL SOLUTIONS, INC. GS-00F-315GA (813) 639-1241 TAMPA ,FL s/d
UNIFIED BUSINESS TECHNOLOGIES INC GS-10F-0230X 248-588-1781 TROY ,MI s/w/wo/ew/d
UL VERIFICATION SERVICES INC. 47QRAA20D0011 973-821-5259 SAN LUIS OBISPO ,CA s
TTL ASSOCIATES INC GS-10F-0255U 419-324-2222 TOLEDO ,OH s/dv
TRINITY ENGINEERING ASSOCIATES, INC. GS-10F-0306P (513) 620-7115 CINCINNATI ,OH s/wo/ew
TRINITY CONSULTANTS INC 47QRAA24D0020 (972)661-8100 DALLAS ,TX o    
TRINITY ANALYSIS AND DEVELOPMENT CORP. GS-00F-213DA (850)613-6800 SHALIMAR ,FL s/d  
TRIHYDRO CORPORATION GS-00F-136GA 307-745-7474 LARAMIE ,WY s/h
TRIDENT TREATMENT & DEWATERING, LLC 47QRAA23D0003 813-833-1625 TAMPA ,FL s/d
TRANSYSTEMS CORPORATION 47QRAA19D001C 510-835-7254 KANSAS CITY ,MO o
TRANSPACIFIC TECHNOLOGIES, INC. 47QRAA22D0075 626-701-2305 PASADENA ,CA s/w/wo/ew/d
TOTAL ENVIRONMENTAL CONCEPTS, INC. GS-10F-0270V 301-548-0382 GAITHERSBURG ,MD s
TOEROEK ASSOCIATES, INC. GS-00F-055CA (303) 420-7735 LAKEWOOD ,CO s
TLC ENGINEERING, INC. 47QRAA23D006A 713-868-6900 HOUSTON ,TX s/d
TK & K SERVICES LLC 47QRAA20D008E (617)448-1668 BEVERLY ,MA s/dv  
TITAN ENVIRONMENTAL SOLUTIONS, INC 47QRAA20D003Q 714-860-8965 FULLERTON ,CA s/d/8a/8aS
TIERRA RIGHT OF WAY SERVICES LTD GS-10F-0038T 520-319-2106 TUCSON ,AZ o
TIDEWATER, INC. GS-10F-0260R 410-540-8700 ELKRIDGE ,MD o
THE THRIVAL COMPANY LLC 47QRAA18D009X 208-991-8264 AUSTIN ,TX s/w/wo/d
THE SOLUTION FOUNDRY, LLC       GS-10F-0250U 4049153199 WOODSTOCK ,GA s
THE PUBLIC ARCHAEOLOGY LABORATORY, INCORPORATED GS-10F-0032S 401-728-8780 PAWTUCKET ,RI o
THE OTTERY GROUP, INC GS-10F-0061X 2402747710 SILVER SPRING ,MD s
THE KENIFIC GROUP INC 47QRAA19D00C7 571-636-4002 LEESBURG ,VA s
THE EARTHWORKS GROUP, INC. 47QRAA23D003B 843-651-7900 MURRELLS INLET ,SC s
THE COLLABORATIVE, INC. GS-10F-0147V 303-442-3601 BOULDER ,CO s
THE CATALYST GROUP OF COMPANIES LIMITED LIABILITY COMPANY 47QRAA22D00DA 7327896860 NEW BRUNSWICK ,NJ s/d
THE CADMUS GROUP LLC GS-00F-227CA 617-673-7170 WALTHAM ,MA o
THE ATLANTIC GROUP LLC GS-10F-106AA 256-513-8527 HUNTSVILLE ,AL o
THE ASSOCIATION OF STATE WETLAND MANAGERS INC. GS-10F-0065V 207-892-3399 PORTLAND ,ME o
TETRAHEDRON, INC.       47QRAA24D0016 (410)837-0512 BALTIMORE ,MD s/w/wo/d    
TETRA TECH, INC. GS-00F-168CA 8056813102 PASADENA ,CA o
TERWILLIGER CONSULTING, INC. 47QRAA21D003F (757) 787-3974 LOCUSTVILLE ,VA s/w/wo
TERRAPHASE ENGINEERING INC 47QRAA22D006X 510-388-8745 OAKLAND ,CA s
TERRANEXT, LLC 47QRAA21D004Y 8162250893 DENVER ,CO s/w/wo/ew/d
TERRANEAR PMC LLC GS-00F-322CA (832)265-4900 EXTON ,PA s/d  
TERRACON CONSULTANTS, INC. 47QRAA20D0065 9132027528 OLATHE ,KS o
TERRA SOLUTIONS & SERVICES INC 47QRAA19D00AV 925-250-5603 HERLONG ,CA s/d/to/ai
TELLUS CIVIC SCIENCE CORPORATION 47QRAA24D002R (415)314-5530 SAN DIEGO ,CA s/w/wo/ew/d    
TELEDYNE BROWN ENGINEERING, INC. GS-00F-155CA 2567261211 HUNTSVILLE ,AL o
TEKPRO SUPPORT SERVICES, LLC 47QSMA22D08PE 210-899-1400 SAN ANTONIO ,TX s/d/8a/ai/an
TEHAMA, LLC       47QRAA18D00A4 719-437-5131 KANSAS CITY ,MO s/d/to
TECTONIC ENGINEERING CONSULTANTS, GEOLOGISTS & LAND SURVEYORS, DPC GS-00F-015BA 800-829-6531 MOUNTAINVILLE ,NY o
TECHNICAL RESOURCES INTERNATIONAL, INC. GS-00F-274CA 301-564-6400 BETHESDA ,MD o
TECHNICAL RESOURCES GROUP INC. GS-10F-0300W 208-528-8895 IDAHO FALLS ,ID s/w
TECHLAW CONSULTANTS INC 47QSWA18D008B 703-818-3233 CHANTILLY ,VA o
T3W BUSINESS SOLUTIONS, INC. 47QRAA19D000N 619-288-0888 SAN DIEGO ,CA s/w/wo
SYSTEMATIC MANAGEMENT SERVICES INC. GS-00F-241CA 3013530072 FREDERICK ,MD s
SWCA, INCORPORATED 47QRAA19D004C 602.274.3831 PHOENIX ,AZ o
SUSTAINMENT & RESTORATION SERVICES, LLC 47QRAA18D00FN 414-257-4200 MILWAUKEE ,WI s/d/8a/to/ai
SURF TO SNOW ENVIRONMENTAL RESOURCE MANAGEMENT, INC. 47QRAA21D000B 925-362-3114 SAN RAMON ,CA s/dv/d
SUNDANCE CONSULTING, INC.       47QRAA18D00AS 619-333-3960 POCATELLO ,ID s/w/wo/d/ai
STV INCORPORATED 47QRAA22D0097 703-599-4961 DOUGLASSVILLE ,PA o
STREET LEGAL INDUSTRIES, INC 47QRAA19D00A7 865-483-6373 OAK RIDGE ,TN s/w/wo/ew/d/8a/h
STRAUGHAN ENVIRONMENTAL, INC. GS-10F-014CA 4435392535 COLUMBIA ,MD s/w/wo/ew/d
STRATA G, L.L.C. GS-00F-004CA 8659343400 KNOXVILLE ,TN o
STILLWATER ECOSYSTEM WATERSHED & RIVERINE SCIENCES GS-10F-0216S (510)848-8098 BERKELEY ,CA s/w/wo  
STETSON ENGINEERS INC       GS-10F-0404P 415-457-0701 SAN RAFAEL ,CA s
STELL SIA SALAS O'BRIEN LLC 47QRAA23D005N (303)638-2233 MOUNTLAKE TERRACE ,WA s/w/wo/ew/dv    
STELL ENVIRONMENTAL ENTERPRISES INC 47QRAA23D000D 303-638-2233 EXTON ,PA s/w/wo/ew/dv
STEARNS, CONRAD AND SCHMIDT, CONSULTING ENGINEERS, INC. 47QRAA20D002R 5713532020 LONG BEACH ,CA o
STATISTICAL RESEARCH INC GS-10F-0396P 1-520-721-4309 TUCSON ,AZ s/w/wo/ew
STANTEC GS INC. GS-00F-196CA 9165487783 CHARLOTTESVILLE ,VA o
STANTEC CONSULTING SERVICES INC. 47QRAA19D000Q (212) 330-6261 DENVER ,CO o
SRC INC 47QRAA19D005N 3154528165 SYRACUSE ,NY o
SPECTRA TECH, INC. GS-00F-264CA 865-813-2131 OAK RIDGE ,TN s
SPECPRO PROFESSIONAL SERVICES, LLC       47QRAA19D004W 210-201-8994 SAN ANTONIO ,TX s/d/8a/ai/an
SPECPRO MANAGEMENT SERVICES, LLC       47QRAA19D007P (210) 424-2110 SAN ANTONIO ,TX o
SPECIALTY CONSULTING, INC. 47QRAA24D000U (312)319-7575 CHICAGO ,IL s/d    
SPECIALISTS LLC WILDLIFE GS-10F-231AA 5704396898 WELLSBORO ,PA s
SPATIAL INFORMATICS GROUP LLC 47QRAA20D004S 510-427-3571 PLEASANTON ,CA s
SOUTHWEST HAZARD CONTROL INC GS-10F-115BA 5206223607 TUCSON ,AZ s/w/d
SOUTHEASTERN ARCHAEOLOGICAL RESEARCH, INC. GS-10F-0255Y 352-333-0049 ORLANDO ,FL o
SOURCE ENVIRONMENTAL INC 47QRAA20D000C 303-333-8521 DENVER ,CO s/w/wo
SONOMA TECHNOLOGY, INC. 47QRAA18D00D1 707-665-9900 PETALUMA ,CA s
SOLV LLC 47QRAA18D00DH 7037604801 MC LEAN ,VA s
SOL ENGINEERING SERVICES, LLC GS-00F-223GA 601-961-1415 JACKSON ,MS s/d/h
SOIL AND LAND USE TECHNOLOGY, INC.
(DBA: SOIL & LAND USE TECHNOLOGY INC)
GS-10F-0072T 301-595-3783 WASHINGTON ,DC s
SKEO SOLUTIONS, INC. 47QRAA20D0027 434-975-6700 CHARLOTTESVILLE ,VA s
SIGNATURE SCIENCE LLC GS-00F-105CA (877) 474-4724 AUSTIN ,TX o
SIGNAL USA LLC 47QRAA23D009M 248-765-3709 TROY ,MI o
SHN CONSULTING ENGINEERS & GEOLOGISTS, INC.       47QRAA24D000Y (707)441-8855 EUREKA ,CA s    
SHIPLEY GROUP, INC., THE 47QRAA19D00CF 8882702157 FARMINGTON ,UT s
SES INC. 47QRAA22D0083 913-307-0046 LENEXA ,KS s
SERES ENGINEERING & SERVICES LLC 47QRAA18D00ES (843) 216-8531 CHARLESTON ,SC s/d
SECURIFENSE INC       GS-00F-186GA 412-973-9998 HENDERSONVILLE ,NC s/dv
SEBA PROFESSIONAL SERVICES LLC GS-23F-057AA 703-856-2078 RIVERDALE ,MD s/w/wo/ew/d/h
SCOUT ENVIRONMENTAL, INC. 47QRAA21D009A 7602399611 ENCINITAS ,CA s/dv
SCIENCE APPLICATIONS INTERNATIONAL CORPORATION GS-00F-002CA 703-981-7244 RESTON ,VA o
S.S. PAPADOPULOS & ASSOCIATES, INC. 47QRAA22D0037 301-500-2275 ROCKVILLE ,MD s
S.P. CRAMER & ASSOCIATES, INC. 47QRAA19D0045 (888) 224-1221 PORTLAND ,OR s
S C & A INC 47QRAA20D002W 7038936600 ARLINGTON ,VA s
S & K FEDERAL SERVICES LLC 47QRAA22D008G 603-362-2178 SAINT IGNATIUS ,MT s/d/8a/to/ai/8aS
RUTH VILLALOBOS & ASSOCIATES INC GS-00F-432GA 9092451140 ONTARIO ,CA s/w/wo/d
RURAL COMMUNITY ASSISTANCE CORPORATION GS-10F-0255X 916-708-1896 WEST SACRAMENTO ,CA o
RURAL AND TRIBAL ENVIRONMENTAL SOLUTIONS GS-10F-0257R 406-861-7696 BILLINGS ,MT s/w/wo
RPS GROUP, INC. GS-10F-0438R 401-789-6224 HOUSTON ,TX o
ROSS & ASSOCIATES ENVIRONMENTAL CONSULTING, LTD. 47QRAA22D008B 206-447-1805 SEATTLE ,WA s
ROSS & ASSOCIATES ENVIRONMENTAL CONSULTING, LTD. GS-00F-0045P 2064471805 SEATTLE ,WA s
ROMEM AQUA SYSTEMS CO INC 47QRAA20D005A 7036432952 WOODBRIDGE ,VA s/dv
ROCK LEAF WATER ENVIRONMENTAL LLC 47QRAA23D002M 8337625532 ELK RIVER ,MN s/w/wo/ew/d
ROBINSON & NOBLE INC GS-10F-010CA 2534757711 TACOMA ,WA s
ROBERT AND COMPANY GS-00F-210GA 4045774000 ATLANTA ,GA s/dv
RMEC ENVIRONMENTAL INC 47QRAA22D00EX 8014673661 BOUNTIFUL ,UT s
RIVERSIDE TECHNOLOGY INC GS-00F-0026P 9705685657 LOVELAND ,CO s
RISK ASSESSMENT AND MANAGEMENT GROUP, INC. 47QRAA22D001H 8324981717 BELLAIRE ,TX s
RICHARD GRUBB AND ASSOCIATES, INC. GS-00F-057DA 609-655-0692 CRANBURY ,NJ s/w/wo/ew
RHEA ENGINEERS & CONSULTANTS INC 47QRAA20D0051 724-443-4111 CORAOPOLIS ,PA s/w/wo
RESPEC COMPANY, LLC 47QTCA19D0084 (605) 394-6400 RAPID CITY ,SD o
RESOURCE RECYCLING SYSTEMS INC GS-10F-038CA 734-996-1361 ANN ARBOR ,MI s/d
RESOURCE MANAGEMENT CONCEPTS, INC.       47QTCA19D007C 301-862-7501 LEXINGTON PARK ,MD s
RESOURCE & ENVIRONMENTAL MANAGEMENT CONSULTANTS, INC. GS-10F-0014W 801-255-2626 MIDVALE ,UT s/w/wo
RESEARCH TRIANGLE INSTITUTE GS-00F-354CA 9195416624 RESEARCH TRIANGLE P ,NC o
RESEARCH PLANNING, INC. 47QRAA19D003K 803-256-7322 COLUMBIA ,SC s/w/wo
RENOVA ENVIRONMENTAL COMPANY 47QRAA20D005N 732-659-1000 OCEAN ,NJ s/d/h
REMSA INC 47QRAA23D006S 7577220113 HAMPTON ,VA s/w/wo/ew/d
REMPERT INC.
(DBA: RPF ENVIRONMENTAL)
47QRAA24D003H (603)942-5432 NORTHWOOD ,NH s/w/wo/ew    
REDHORSE CORPORATION       GS-00F-0013Y 619-241-4609 ARLINGTON ,VA o
REDHORSE CORPORATION GS-07F-134GA (619) 241-4609 ARLINGTON ,VA o
RED J ENVIRONMENTAL CORPORATION GS-10F-0246T 928-288-3239 JOSEPH CITY ,AZ s/h
RECON ENVIRONMENTAL,INC. 47QRAA22D005U 619-308-9333 EXT 151 SAN DIEGO ,CA s
RAVEN ENVIRONMENTAL SERVICES, INC GS-00F-264DA 936-291-0946 HUNTSVILLE ,TX s
RAV EHS CONSULTING LLC 47QRAA22D0081 615-261-8081 FRANKLIN ,TN s/d
RAMBOLL AMERICAS ENGINEERING SOLUTIONS, INC. 47QRAA20D0074 2482258513 SYRACUSE ,NY o
R2T, INC. GS-00F-129GA 7705697037 X 120 ATLANTA ,GA s/w/wo/ew/d
R. CHRISTOPHER GOODWIN & ASSOCIATES, INC. 47QRAA20D002Q 301-694-0428 NEW ORLEANS ,LA s
QUATERNARY RESOURCE INVESTIGATIONS, L.L.C. GS-10F-105BA 2252921400 BATON ROUGE ,LA s/w/wo/ew/d
QUANTECH INC 47QRAA18D00CZ 2403972993 ROCKVILLE ,MD s
PYRAMID ENVIRONMENTAL & ENGINEERING, P.C. 47QRAA22D00ED 336-335-3174 GREENSBORO ,NC s
PRUDENT TECHNOLOGIES INC GS-10F-0176Y (816)318-9434 KANSAS CITY ,MO s/d  
PROSPECTIVE TECHNOLOGY INC GS-10F-0350S (410) 381-0035 MARRIOTTSVILLE ,MD s/d
PROSIDIAN CONSULTING LLC GS-10F-0309Y 713-562-1832 CHARLOTTE ,NC s/d
PROPERTY CONDITION ASSESSMENTS, LLC       47QRAA22D009Z 661-618-7704 BREA ,CA s/d
PROPERTY & ENVIRONMENTAL MANAGEMENT INC 47QSHA20D0037 (614) 573-6998 COLUMBUS ,OH s/8a/h
PROJECT ENHANCEMENT CORPORATION 47QRAA24D000A 240-686-3059 GERMANTOWN ,MD s
PROFESSIONAL PROJECT SERVICES, INC. GS-00F-112CA 865.220.4377 OAK RIDGE ,TN s
PROFESSIONAL ENVIRONMENTAL ENGINEERS, INC GS-10F-200BA 314-531-0060 SAINT LOUIS ,MO s/w
PROFESSIONAL ENGINEERING SERVICES, LTD. 47QRAA21D008Y 9524566707 MINNEAPOLIS ,MN s/w/wo/d
PRESTIGE ENVIRONMENTAL, INC GS-10F-0166T 908-757-9700 SOMERSET ,NJ s
POTOMACWAVE CONSULTING, INC. GS-00F-0007X 703-963-5064 ALEXANDRIA ,VA o
POTOMAC-HUDSON ENGINEERING INC 47QRAA18D0074 (301) 907-9078 X3003 ROCKVILLE ,MD s
PLEXUS SCIENTIFIC CORPORATION 47QRAA19D00BK 571-338-5371 ALEXANDRIA ,VA s
PIONEER TECHNICAL SERVICES INC GS-10F-050AA 4067231898 BUTTE ,MT s
PINYON ENVIRONMENTAL, INC.       47QRAA22D006T 303.984.0275 LAKEWOOD ,CO s/w/wo
PIKA INTERNATIONAL, INC. GS-10F-0202U 281-340-5525 STAFFORD ,TX s/d
PIAT, INC. 47QRAA21D008M 913-915-3067 OLATHE ,KS s/v
PHASE ASSOCIATES LLC 47QRAA20D007Z 973-808-4888 LIVINGSTON ,NJ s/w
PG ENVIRONMENTAL, LLC 47QRAA23D002W 7207898033 CHANTILLY ,VA o
PG ENVIRONMENTAL, LLC GS-10F-0210U 7207898033 CHANTILLY ,VA o
PETERSON KATHRYN 47QRAA18D008H 909-630-8279 AGUANGA ,CA s/w/wo
PERIKIN ENTERPRISES LLC GS-00F-003AA 505-333-0501 ALBUQUERQUE ,NM s/d/8a/h/8aS
PERATON SERVICES & SOLUTIONS INC. GS-00F-296CA 703-673-6309 HERNDON ,VA o
PCCI, INC. 47QRAA18D00HE 7033391110 ALEXANDRIA ,VA o
PBS ENGINEERING AND ENVIRONMENTAL INC. 47QRAA21D0001 206-766-7621 PORTLAND ,OR o
PARYMON CORP 47QTCA21D00FC 240-418-2210 SILVER SPRING ,MD s/w/wo/d/h
PARSONS GOVERNMENT SERVICES INC. 47QRAA19D000A 8036464100 PASADENA ,CA o
PARS ENVIRONMENTAL INC GS-10F-0094W 609-890-7277 ROBBINSVILLE ,NJ o
PARAGON PROFESSIONAL SERVICES LLC 47QRAA19D007B 907-334-8311 ANCHORAGE ,AK s/d/8a/an/8aS
PARADIGM ENVIRONMENTAL INC 47QRAA18D003K 7039571908 OAKTON ,VA s
PANORAMA ENVIRONMENTAL INC 47QRAA20D0091 858-349-8883 SAN FRANCISCO ,CA s/w/wo/ew/d
PALEOWEST LLC       GS-10F-0116V 602-261-7253 PHOENIX ,AZ o
PACIFIC WESTERN TECHNOLOGIES, LTD.       47QRAA21D005V 3032745400 WHEAT RIDGE ,CO s/d
PACIFIC WATERSHED ASSOCIATES INC GS-10F-0244V (707)839-5130 MCKINLEYVILLE ,CA s  
OTAK, INC. GS-10F-0401X 503-287-6825 PORTLAND ,OR o
OSAGE RESEARCH AND DEVELOPMENT LLC 47QRAA24D000H 910-520-7450 KURE BEACH ,NC s/w/wo/ew/d/ai
ORION ENVIRONMENTAL, INC. 47QRAA21D000V 562-988-2755 LONG BEACH ,CA s
ONEIDA TOTAL INTEGRATED ENTERPRISES LLC 47QRAA20D009B 414-257-4200 MILWAUKEE ,WI s/d/to/ai
ONEIDA ENGINEERING SOLUTIONS LLC 47QRAA23D0093 414-257-4200 GREEN BAY ,WI s/d/8a/to/ai/8aS
OHIO VALLEY ARCHAEOLOGY, INC. GS-10F-172BA (614) 436-6926 COLUMBUS ,OH s/w/wo/d
OCEAN ASSOCIATES INC GS-10F-0567P 703-388-9548 ARLINGTON ,VA s/w/wo
OCEAN ASSOCIATES INC GS-35F-372GA 703-819-6939 ARLINGTON ,VA s/w/wo
OCCU-TEC INC GS-10F-0091T 816-231-5580 KANSAS CITY ,MO s
OAK RIDGE ASSOCIATED UNIVERSITIES, INCORPORATED GS-00F-195CA 865-214-3285 OAK RIDGE ,TN o
NV5 GEOSPATIAL, INC. 47QTCA18D001X 608-556-2580 SAINT PETERSBURG ,FL o
NUTTER & ASSOCIATES INC 47QRAA19D009B 706-354-7925 ATHENS ,GA s/h
NUKA RESEARCH & PLANNING GROUP LLC GS-10F-164AA 5084544009 PLYMOUTH ,MA s/w/wo
NOVELESOLUTIONS, INC. 47QRAA23D00A3 (239) 220-4138 TAMPA ,FL s/w/wo/ew/d/8a/8aS
NORTHLAND RESEARCH, INC GS-10F-0070W 928-774-5057 FLAGSTAFF ,AZ s
NORTH WIND RESOURCE CONSULTING LLC GS-10F-111BA 208-419-4152 IDAHO FALLS ,ID s/d/an
NORTH WIND PORTAGE, INC. GS-00F-262CA (208)419-4152 IDAHO FALLS ,ID s  
NORTECH, INC GS-10F-0150R (907) 452-5688 FAIRBANKS ,AK s
NORMANDEAU ASSOCIATES, INC. 47QRAA23D002Z 603-637-1174 BEDFORD ,NH o
NOREAS, INC. GS-00F-373GA 714-955-3120 IRVINE ,CA s/d
NODI SOLUTIONS, LLC 47QRAA18D00GK 571-233-5916 FREDERICK ,MD s/w/wo
NOBLIS, INC. GS-00F-096DA (703) 610-2290 RESTON ,VA o
NICHOLS CONSULTING ENGINEERS CHTD 47QRAA18D008A 7753294955 RENO ,NV s
NEW SOUTH ASSOCIATES, INC. 47QRAA22D00EW 770-498-4155 STONE MOUNTAIN ,GA s/w/wo
NEVADA SYSTEM OF HIGHER EDUCATION
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NEPTUNE AND COMPANY, INCORPORATED 47QRAA23D0019 720-746-1803 LAKEWOOD ,CO s/w/wo
NELSON ENGINEERING CO. GS-00F-324CA 3214491128 MERRITT ISLAND ,FL s
NAVARRO RESEARCH AND ENGINEERING, INC. 47QRAA23D000P 865-220-9650 OAK RIDGE ,TN s/w/wo
NATURES IMAGE, INC. GS-10F-045BA 9496804400 LAKE FOREST ,CA s/w/wo
NATURAL SYSTEMS ANALYSTS, INC 47QRAA22D004Q 4077183880 DUBOIS ,WY s/d
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NATIVE-X, INC. ARCHAEOLOGICAL SERVICES GS-10F-0174U 7755600808 LINCOLN ,CA s/v
MXI ENVIRONMENTAL SERVICES LLC GS-10F-0013Y (908)295-0555 ABINGDON ,VA s
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MUNIREM ENVIRONMENTAL, LLC GS-00F-161GA (210)788-1034 DULUTH ,GA s/d  
MTSA II JV LLC 47QRAA23D001Y 703-930-9624 FAIRFAX ,VA s/dv
MSE GROUP LLC GS-10F-0469Y 855-629-8180 ORLANDO ,FL o
MIRACORP INC 47QSHA20D000Z 571-589-8970 MESA ,AZ s/w/wo/ew/dv/d
MIRACORP INC GS-10F-233AA 571-589-8970 MESA ,AZ s/w/wo/ew/dv/d
MILLER ENGINEERS INC 47QRAA21D007C 575-649-2584 ALBUQUERQUE ,NM o
MILL CREEK ENVIRONMENTAL LLC       47QRAA22D000Q 706-579-1607 DAWSONVILLE ,GA s
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MID-SOUTH TESTING, INC. 47QRAA23D006U 256-351-7900 DECATUR ,AL s/w/wo
MICHAEL BAKER INTERNATIONAL, INC. 47QRAA21D008D 703-483-0029 ALEXANDRIA ,VA o
METALS TREATMENT TECHNOLOGIES LLC 47QRAA18D00CS 3034566977 ARVADA ,CO o
MERKEL & ASSOCIATES, INC. GS-10F-0060T 858-560-5465 SAN DIEGO ,CA s/w
MELE ASSOCIATES INC GS-00F-243CA (240)453-6962 ROCKVILLE ,MD s/v
MECX, INC. GS-10F-0328R 713-585-7000 HOUSTON ,TX s/dv
MECA CONSULTING, INC. GS-10F-0229U 925-808-6700 PLEASANTON ,CA s
MEAD & HUNT INC GS-00F-230DA 906-629-1360 MIDDLETON ,WI o
MDB INC 47QRAA20D0028 202-331-0060 WASHINGTON ,DC s
MCL JASCO INC 47QRAA22D0078 313-841-5000 DETROIT ,MI s/dv
MAXXIMUS ENVIRONMENTAL, INC GS-10F-0180X 7032170153 ROCKVILLE ,MD s/d
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MATRIX DESIGN GROUP INC 47QRAA19D009K (719)575-0100 COLORADO SPRINGS ,CO o  
MASON, BRUCE & GIRARD, INC 47QRAA21D0090 503-224-3445 PORTLAND ,OR s/d
MAS CONSULTANTS & POINT SIX INC. 47QRAA20D005B 813-730-3543 VALRICO ,FL s/dv
MARSTEL-DAY LLC GS-00F-070CA 7038395513 FREDERICKSBURG ,VA s
MARSH & ASSOCIATES LLC       GS-10F-0085V 480-459-7864 TEMPE ,AZ s
MARINE TAXONOMIC SERVICES, LIMITED 47QRAA21D000T 7604108392 SAN MARCOS ,CA s
MAP-COLLECTIVE, INC. 47QRAA23D0011 (703) 346-8489 WASHINGTON ,DC s/w/wo/d
MANTECH SRS TECHNOLOGIES, INC. GS-10F-0054R 703-218-6440 HERNDON ,VA o
MANNIK & SMITH GROUP INC 47QRAA20D006A 734-790-5177 MAUMEE ,OH s
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LRS FEDERAL LLC GS-10F-0360T 4105443570 SEVERNA PARK ,MD s/dv
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LJB INC GS-00F-049CA 937-259-5000 MIAMISBURG ,OH o
LINK TECHNOLOGIES INC 47QRAA20D0096 301-983-6878 GERMANTOWN ,MD s/w/wo
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LINDAHL REED, INC. 47QRAA18D00GR 541-638-9264 BEND ,OR s/w/wo/ew/d/8a/8aS
LIMNO-TECH INC GS-10F-150BA 734-332-1200 ANN ARBOR ,MI o
LEWIS CG, INC 47QRAA22D003W 732-276-2420 WALL ,NJ s/d
LEW CORP 47QRAA18D002A 336-887-1328 MINE HILL ,NJ s
LEIDOS, INC. GS-00F-022CA 571-526-7840 RESTON ,VA o
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LARSON DESIGN GROUP, INC. 47QRAA19D00CU 412-528-0525 WILLIAMSPORT ,PA o
LAGO CONSULTING & SERVICES LLC 47QRAA22D009K 813-774-5559 TAMPA ,FL s/w/wo/ew/d/8a/8aS
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KLEINFELDER INC GS-10F-0389R (619)831-4634 SAN DIEGO ,CA o  
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KEARNS & WEST, INC. 47QRAA22D00DZ 415.697.0574 SAN FRANCISCO ,CA s
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KAPUR ENERGY ENVIRONMENT ECONOMICS, LLC 47QSHA20D000W 434-295-3018 CHARLOTTESVILLE ,VA s/w/wo/ew/d
KANE ENVIRONMENTAL, INC. GS-10F-0061W 2066910476 SEATTLE ,WA s
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JW ASSOCIATES INC GS-10F-0108S 970-406-0085 BRECKENRIDGE ,CO s/w/wo/d
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JENSEN HUGHES INC GS-00F-006CA 425-217-1123 HALETHORPE ,MD o
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JE FULLER/HYDROLOGY AND GEOMORPHOLOGY, INC. GS-00F-079GA 480-222-5707 TEMPE ,AZ s
JARDON & HOWARD TECHNOLOGIES, INCORPORATED 47QRAA21D008B 407-381-7797 ORLANDO ,FL s/dv
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J FOSTER & ASSOCIATES LLC 47QRAA22D0069 (208)709-0508 IDAHO FALLS ,ID s/w/wo/ew/d/8a
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ICF INCORPORATED, L.L.C. GS-00F-010CA 703-225-5692 FAIRFAX ,VA o
IAP WORLD SERVICES, INC. GS-35F-407GA 321-784-7396 CAPE CANAVERAL ,FL o
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HYDROSOLUTIONS INC GS-10F-0172X 4064436169 HELENA ,MT s/dv
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HUNTER RESEARCH INC GS-10F-018AA 609-695-0122 X 100 TRENTON ,NJ s
HSG, LLC GS-10F-230BA 702-271-4673 HENDERSON ,NV s/w/wo/ew/d
HOUSTON ENGINEERING INC 47QRAA23D004Q 701-499-9463 FARGO ,ND o
HORSLEY WITTEN GROUP, INC. 47QRAA22D005P 508-833-6600 SANDWICH ,MA s
HORSLEY WITTEN GROUP, INC. GS-10F-0304T 508-833-6600 SANDWICH ,MA s
HORNE LLP GS-23F-0037W 601-326-1126 RIDGELAND ,MS o
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HHM & ASSOCIATES, INC. GS-10F-0244Y 512-478-8014 AUSTIN ,TX s/w/wo
HGS ENGINEERING INC 47QSHA22D0021 (256) 236-1848 ANNISTON ,AL s/dv
HELIX ENVIRONMENTAL PLANNING, INC. GS-10F-0020V 3102783100 LA MESA ,CA o
HEALTHY HOUSING SOLUTIONS, INC. 47QRAA18D00H1 443-539-4166 COLUMBIA ,MD s
HDR ENVIRONMENTAL, OPERATIONS AND CONSTRUCTION, INC. 47QRAA22D00AR 303-754-4250 ENGLEWOOD ,CO o
HDR ENGINEERING INC GS-00F-152CA 303-754-4252 OMAHA ,NE o
HAZTRAIN INC 47QRAA20D0056 301-932-0994 WALDORF ,MD s/w/wo
HAZAIR INC GS-10F-114CA 702-899-8501 HENDERSON ,NV s/dv/d
HARTGEN ARCHEOLOGICAL ASSOCIATES, INC. GS-10F-0424Y 5182830534 RENSSELAER ,NY s
HARRIS ENVIRONMENTAL GROUP INC GS-10F-0457R 52006287648 TUCSON ,AZ s/w/wo/ew/d/h
HARBOR ENVIRONMENTAL, INC 47QRAA21D001J 5016638800 LITTLE ROCK ,AR s/w/wo/ew/d
HANA ENGINEERS & CONSULTANTS LLC 47QRAA22D003N 757-701-9382 RICHMOND ,VA s/d/8a/8aS
HAMER ENVIRONMENTAL LP GS-10F-087AA 3608995156 MOUNT VERNON ,WA s
H & L ENVIRONMENTAL SERVICES, LLC 47QRAA21D006J 8656175500 MAXTON ,NC s/d/8a/h/ai/8aS
GUTIERREZ CANALES ENGINEERING PC 47QRAA21D003J (928)217-2419 YUMA ,AZ s/w/wo    
GULF SOUTH RESEARCH CORP 47QRAA19D006W 2257578088 BATON ROUGE ,LA s/w/wo/ew/d
GUIDEHOUSE INC. 47QRAA19D0085 202-481-7526 MCLEAN ,VA o
GSI NORTH AMERICA INC 47QRAA19D002Z 808-393-7167 FLEMINGTON ,NJ s/d/8a/hn/8aS
GSE INC 47QRAA18D008P 256-350-9754 TRINITY ,AL s/w/wo
GRYPHON ENVIRONMENTAL, LLC GS-10F-144BA 719-578-3330 COLORADO SPRINGS ,CO s/dv
GREENMAN-PEDERSEN INC 47QRAA21D004M 518-209-4823 BABYLON ,NY o
GREEN AND SUSTAINABLE SERVICES, LLC GS-07F-231CA 940-597-3723 PONDER ,TX s/w/wo/ew
GREAT LAKES ENVIRONMENTAL CENTER, INC. GS-10F-015AA 2315250505 TRAVERSE CITY ,MI s
GRAY & PAPE INC 47QRAA21D006G 804-291-7703 CINCINNATI ,OH s
GRAVITATE LIMITED LIABILITY COMPANY 47QRAA18D004C 307-680-3637 FORT WORTH ,TX s/w/wo/ew/d
GRACE ENVIRONMENTAL SERVICES, INC. 47QRAA22D000Z 805-431-6253 THOUSAND OAKS ,CA s/v
GOLDBELT C6, LLC 47QRAA19D00CS (757)550-2121 CHESAPEAKE ,VA s/d/an
GOLD WAVE INC 47QRAA23D003C 630-800-8509 DARIEN ,IL s/w/wo/dv/d
GLOBAL SYSTEMS ENGINEERING, LLC 47QRAA20D0060 703-915-2338 ALEXANDRIA ,VA s/h
GLOBAL CONSULTING INC. GS-10F-0130X (925)626-7121 GREENBELT ,MD s/w/wo
GLE ASSOCIATES, INC GS-10F-0326X 813-241-8350 TAMPA ,FL s
GIBB & O'LEARY EPIDEMIOLOGY CONSULTING LLC 47QRAA19D004F 703-888-6059 ARLINGTON ,VA s/v
GEOTIC SOLUTIONS LLC 47QRAA22D000D 303-775-6920 BOULDER ,CO s
GEOSYSTEMS ANALYSIS, INC GS-10F-0209Y 520-628-9330 TUCSON ,AZ s
GEOSYNTEC CONSULTANTS, INC. 47QRAA22D003A 561-922-1079 BOCA RATON ,FL o
GEOSPATIAL CONSULTING GROUP INTERNATIONAL LLC       GS-35F-212DA 571-289-0267 ALEXANDRIA ,VA s/w/wo/ew
GEOMORPH INFORMATION SYSTEMS, LLC GS-10F-0236X 619-787-7974 SAN DIEGO ,CA s/w/wo/ew/d/h
GENWEST SYSTEMS INC 47QRAA22D006M 425-771-2700 EDMONDS ,WA s/dv
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. GS-00F-057CA 7039953733 FALLS CHURCH ,VA o
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. GS-00F-256CA 703-995-3733 FALLS CHURCH ,VA o
GEM TECHNOLOGY INTERNATIONAL, CORP. 47QRAA22D008D 305-447-1344 MIAMI ,FL s/w/wo/ew/d
GEM TECHNOLOGIES, INC. 47QRAA20D007W 865-660-7339 KNOXVILLE ,TN s/d
GDS ASSOCIATES, INC.       47QRAA22D0008 770-799-2399 MARIETTA ,GA o
GANNETT FLEMING, INC. GS-00F-114CA 703-277-9505 CAMP HILL ,PA o
G2 ARCHAEOLOGY 47QRAA20D001G 3102783100 RENO ,NV s/w/wo/d
G R B ENVIRONMENTAL SERVICES, INC. GS-10F-0284X 212-564-8640 NEW YORK ,NY s/w
FRED PHILLIPS CONSULTING, LLC GS-10F-0024W (928)773-1530 RIDGWAY ,CO s  
FPM GROUP LTD GS-00F-104CA 631-737-6200 BOHEMIA ,NY s
FOURTUNE 4, INC.
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GS-10F-181BA 9413788844 SARASOTA ,FL s
FOOTPRINT CONSULTING LLC 47QRAA24D001K 202-277-4765 LOTHIAN ,MD s/w/wo/ew/d
FOOTHILLS ENVIRONMENTAL, INC. GS-10F-0374S (303) 232-2660 LAKEWOOD ,CO s/d
FMF PANDION 47QRAA22D002R 760-212-9120 ENCINITAS ,CA s/dv/d/8a/ai/8aS
FLUX RESOURCES, LLC 47QRAA22D0002 503-558-3465 TIGARD ,OR o
FLOWWEST, LLC 47QRAA22D0057 510-454-9378 OAKLAND ,CA s
FIRST ENVIRONMENT INC GS-10F-0178R 9733340003 BUTLER ,NJ s/dv
FEDWRITERS, INC. GS-00F-217GA 202-271-0312 FAIRFAX ,VA s/d/8a/8aS
FAR WESTERN ANTHROPOLOGICAL RESEARCH GROUP, INC. 47QRAA23D000F 530-756-3941 DAVIS ,CA s
FALCONA MANAGEMENT & TECHNOLOGY, L.L.C. GS-00F-272CA 210-704-1486 NEW BRAUNFELS ,TX s/w/wo/ew/d/8a/8aS
F3 SOLUTIONS LLC GS-10F-195BA 478-971-1343 WARNER ROBINS ,GA s/w/wo/ew/d
EWING INDUSTRIAL SERVICES, LLC 47QRAA21D000S (361)502-7664 CORPUS CHRISTI ,TX s/d  
ESPINOZA CULTURAL SERVICES, LLC 47QRAA20D0062 800-511-8685 LA JARA ,CO s/w/wo/ew/d/h
ESP ASSOCIATES, INC. GS-10F-189BA 336-232-5213 FORT MILL ,SC o
ERO RESOURCES CORPORATION 47QRAA21D0075 3038301188 LAKEWOOD ,CO s/w/wo/d
ERICA LANE ENTERPRISES INC 47QRAA18D0061 256-536-7117 HUNTSVILLE ,AL s/w/wo/d
ERC ENVIRONMENTAL & CONSTRUCTION SERVICES INC 47QRAA23D0049 7132909444 HOUSTON ,TX s
EPSILON SYSTEMS SOLUTIONS, INC. 47QRAA21D005F 619-702-1700 SAN DIEGO ,CA o
ENVIROSYSTEMS MANAGEMENT INC 47QRAA22D005M (928) 226-0236 FLAGSTAFF ,AZ s/w/wo
ENVIROSCIENCE INC GS-10F-0181U 330-688-0111 CUYAHOGA FALLS ,OH o
ENVIRONMENTAL TESTING AND CONSULTING, INC. GS-00F-222GA 734-955-6600 ROMULUS ,MI s/w/wo/ew/d
ENVIRONMENTAL SYSTEMS ANALYSIS, INC. 47QRAA24D0004 410-267-0495 CROFTON ,MD s/w/wo
ENVIRONMENTAL SYNECTICS, INC 47QTCA19D009A 916-737-4011 SACRAMENTO ,CA s/h
ENVIRONMENTAL SYNECTICS, INC GS-10F-043BA 916-737-4011 SACRAMENTO ,CA s/h
ENVIRONMENTAL SOLUTIONS INC 47QRAA22D00BM 410-867-6262 DEALE ,MD s
ENVIRONMENTAL SCIENCE ASSOCIATES 47QRAA21D00AJ 415.896.5900 SAN FRANCISCO ,CA s/d
ENVIRONMENTAL RESOURCE CENTER INC       GS-10F-0346X (919) 469-1585 CARY ,NC s
ENVIRONMENTAL RESEARCH GROUP, L.L.C. GS-10F-142BA 4103665170 BALTIMORE ,MD s/w/wo/ew/dv
ENVIRONMENTAL QUALITY MANAGEMENT, INC 47QRAA19D00BJ 5138257500 CINCINNATI ,OH s/d/an
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ENVIRONMENTAL MANAGEMENT SUPPORT, INC 47QRAA18D00C7 301-589-5318 SILVER SPRING ,MD s
ENVIRONMENTAL MANAGEMENT SERVICES INC GS-10F-0074T (301) 309-0475 ROCKVILLE ,MD s/w/wo/ew/d
ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC 47QRAA23D0018 14156365360 BOULDER ,CO s
ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC GS-10F-0412S 14155400440 BOULDER ,CO s
ENVIRONMENTAL LAW INSTITUTE, THE GS-10F-0330P 2029393834 WASHINGTON ,DC o
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ENVIRONMENTAL HEALTH AND SAFETY SOLUTIONS, LLC 47QRAA21D004K 904-673-4858 PARKTON ,MD s/w/wo/ew
ENVIRONMENTAL GROUP SERVICES LTD GS-10F-0457Y 312-447-1200 CHICAGO ,IL s
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ENVIRONMENTAL COST MANAGEMENT, INC. GS-10F-0335R (510) 964-4399 COSTA MESA ,CA s/d
ENVIRONMENTAL CONSULTING GROUP, INC. GS-10F-0045V 630.607.0060 ELMHURST ,IL s
ENVIRONMENTAL CONSULTING AND TRAINING SERVICES, INC. 47QRAA22D0013 865-719-3215 GREENBACK ,TN s/w/wo
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ENVIRONMENTAL CONSULTING & MANAGEMENT SERVICES, INC.       47QRAA23D0053 203-912-0165 NEW CITY ,NY s
ENVIRONMENTAL COMPLIANCE CONSULTANTS, INC.       GS-10F-0018V 907-777-7107 ANCHORAGE ,AK s/dv/h
ENVIRONMENTAL CHEMICAL CORPORATION 47QRAA22D00A1 303-298-7607 BURLINGAME ,CA s
ENVIRONMENTAL BUSINESS PARTNERS, LLC GS-10F-0363T 904-612-4501 YULEE ,FL s/dv
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ENVIROAPPLICATIONS INC GS-10F-0039X 619.291.3636 SAN DIEGO ,CA s
ENTERPRISE RESOURCE PLANNING INTERNATIONAL, LLC 47QRAA19D009W 3014900080 LAUREL ,MD o
ENGINEERING/REMEDIATION RESOURCES GROUP, INC. GS-10F-0294R 925-969-0750 MARTINEZ ,CA o
ENGINEERING & ENVIRONMENT, INC. 47QRAA21D0005 7572879566 VIRGINIA BEACH ,VA s
ENERGY TECHNOLOGY ALLIANCE LLC 47QRAA22D00EG 202-787-1518 BEND ,OR s/w/wo/ew/d
ENERGY AND SECURITY GROUP, LLC GS-10F-0451P 703-476-3212 RESTON ,VA s
ENDYNA, INC.       GS-00F-0017Y 7038488840 MC LEAN ,VA s/w/wo/ew/d
ENDPOINT SOLUTIONS CORP GS-10F-133BA 414-858-1204 FRANKLIN ,WI s
EMC-ENGINEERS/SCIENTISTS, LLC 47QRAA23D008P (541)660-6698 JACKSONVILLE ,OR s    
ELYON INTERNATIONAL, INC. GS-00F-203GA (360) 696-5892 VANCOUVER ,WA s/w/wo/v/d
ELOS ENVIRONMENTAL, L.L.C. 47QRAA22D005N 985-974-0703 HAMMOND ,LA s
EKNA SERVICES INC 47QRAA20D0078 808-591-8553 HONOLULU ,HI s/w/wo
EDGE ENVIRONMENTAL INC 47QRAA22D0001 303-988-8844 GOLDEN ,CO s/w/wo/d
EDGE ENGINEERING & SCIENCE LLC 47QRAA22D006Q (813)476-5777 HOUSTON ,TX s    
ECS MID-ATLANTIC, LLC 47QRAA19D006M 703-471-4800 CHANTILLY ,VA o
ECS FEDERAL, LLC GS-00F-072CA 571-232-1412 FAIRFAX ,VA o
ECOSYSTEM SCIENCES GS-00F-277DA 2083830226 BOISE ,ID s
ECOSPHERE ENVIRONMENTAL SERVICES INC 47QRAA24D000S (970)382-7256 DURANGO ,CO s/d    
ECOPLAN ASSOCIATES INC GS-10F-0147T (480)733-6666 MESA ,AZ s  
ECOLOGICAL SOLUTIONS GROUP LLC GS-10F-0002V 406-777-1881 STEVENSVILLE ,MT s
ECODIT LLC 47QRAA19D00DN 703-841-1883 ARLINGTON ,VA s/w/wo
ECO RESOURCE GROUP, LLC GS-00F-017AA 206-478-6881 BAINBRIDGE ISLAND ,WA s/w/wo/ew/d
ECO ANALYSTS INC       GS-10F-0050U 2088822588 MOSCOW ,ID s
ECO & ASSOCIATES, INC. GS-10F-0371U 714-289-0995 TUSTIN ,CA s/w/d
EASTERN RESEARCH GROUP INC GS-00F-079CA 7742491622 CONCORD ,MA o
EARTH SYSTEM, LLC 47QRAA21D0009 9042470740 JACKSONVILLE BEACH ,FL s/d
EARTH SMART ENVIRONMENTAL SOLUTIONS LLC GS-00F-099DA 734-260-8624 DAYTON ,TN s/dv
EARTH RESOURCES TECHNOLOGY, INC GS-00F-109CA 3013231435 LAUREL ,MD o
EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBC 47QRAA19D005G 410-329-5160 HUNT VALLEY ,MD s
E3 INTERNATIONAL LLC 47QSMS24D000U (301)922-8553 BETHESDA ,MD s/w/wo    
E.H.T. TRACERIES, INC. 47QRAA18D001L (202)-393-1199 WASHINGTON ,DC s/w/wo/ew/d
E & S ENVIRONMENTAL CHEMISTRY, INC.       47QRAA21D003Q 541-758-1330 CORVALLIS ,OR s
DYNAMIC SOLUTIONS, LLC 47QRAA23D0071 865-212-3331 EXT 22 KNOXVILLE ,TN s/w/wo
DTECH SERVICES INC 47QRAA19D0076 817-695-6519 ARLINGTON ,TX s/d
DPSTUDIO, LLC 47QRAA19D00C3 804-402-0446 MECHANICSVILLE ,VA s/w/wo/d
DPRA INCORPORATED 47QRAA19D003T 785-564-6041 KNOXVILLE ,TN s
DOUGLAS W. PETERS & ASSOCIATES, INC. 47QRAA23D003X 502-454-8530 LOUISVILLE ,KY s
DMG FOUR CORNERS RESEARCH, INC 47QRAA23D005C 5753233271 LAS CRUCES ,NM s/w/wo/d
DKI RESTORATION, LLC 47QRAA18D00FW 630-350-3000 ELK GROVE VILLAGE ,IL s
DJ&A, P.C. GS-10F-0288P (406)721-4320 MISSOULA ,MT s/h    
DEWBERRY ENGINEERS INC. GS-00F-280CA 7032086872 FAIRFAX ,VA o
DESERT ARCHAEOLOGY, INC. GS-10F-161AA 520-881-2244 TUCSON ,AZ s
DELOITTE CONSULTING LLP 47QRAA18D001P 703-251-1143 ARLINGTON ,VA o
DCR SERVICES & CONSTRUCTION INC       47QRAA18D009A (313)779-2612 DETROIT ,MI s/d/8a/h/8aS  
DAWSON SOLUTIONS, LLC 47QRAA18D009F 2105276907 HUNTSVILLE ,AL s/d/8a/hn/8aS
DAVEY RESOURCE GROUP, INC. 47QRAA23D005U 508-825-3217 KENT ,OH o
DAV ENERGY SOLUTIONS, INC. GS-00F-314GA 619-663-7007 SAN DIEGO ,CA s/dv
DADE MOELLER & ASSOCIATES, INC. GS-00F-333CA 509.942.3644 RICHLAND ,WA o
CULTURAL RESOURCE ANALYSTS, INC. 47QRAA19D0048 859-252-4737 LEXINGTON ,KY s
CSRS LLC 47QRAA23D003E 2257690546 BATON ROUGE ,LA o
CSA OCEAN SCIENCES INC 47QRAA23D004B 772-219-3062 STUART ,FL o
CRS CONSULTING ENGINEERS, INCORPORATED       47QRAA19D004X (801)939-5565 SALT LAKE CITY ,UT s/d  
CRITERION LABORATORIES INC GS-10F-0311X 2152441300 BENSALEM ,PA s
CREDERE ASSOCIATES, LLC 47QRAA18D005L 207-828-1272 WESTBROOK ,ME s/w/wo/d/8a/8aS
CRANMER ENGINEERING, INC.
(DBA: CRANMER ANALYTICAL LABORATORY)
47QSWA21D0012 (530)273-7284 GRASS VALLEY ,CA s/d  
CORNERSTONE ENVIRONMENTAL CONSULTING LLC       47QRAA19D0057 928-544-4148 FLAGSTAFF ,AZ s/d
COPPERHEAD ENVIRONMENTAL CONSULTING INC 47QRAA18D00CR 8599259012 PAINT LICK ,KY s
CONSULTECH ENVIRONMENTAL LLC 47QRAA20D003M 919-234-4238 APEX ,NC s/w/wo/ew/d
CONSOLIDATED SAFETY SERVICES INCORPORATED GS-00F-217CA (703) 877-3352 FAIRFAX ,VA o
CONDOR COUNTRY CONSULTING INC 47QRAA22D001Q (412)404-6235 MARTINEZ ,CA s/d  
CONCURRENT TECHNOLOGIES CORP 47QRAA21D0021 814-269-2871 JOHNSTOWN ,PA o
COMPREHENSIVE ENVIRONMENTAL INC 47QRAA18D00DM 508-281-5160 BOLTON ,MA s/w/wo/ew/d
COMMONWEALTH HERITAGE GROUP, INC. GS-00F-261DA 5173206929 DEXTER ,MI s
COMMONWEALTH HERITAGE GROUP, INC. GS-10F-0224P (602)261-7253 DEXTER ,MI s  
COLIBRI ECOLOGICAL CONSULTING, LLC 47QRAA21D0018 5597216836 FRESNO ,CA s/w/wo/ew/d
COGSTONE RESOURCE MANAGEMENT GS-10F-0463X 714-974-8300 ORANGE ,CA s/w/wo/ew/d
COGENT SECURITY CONSULTING LLC GS-00F-301DA (855) 226-4368 ALEXANDRIA ,VA s/d
CLOUDBURST CONSULTING GROUP, INC. GS-10F-0218U 301-412-9229 HYATTSVILLE ,MD s/w/wo
CLEAN HARBORS ENVIRONMENTAL SERVICES INC 47QRAA22D00A8 781-792-5468 NORWELL ,MA o
CLARK GROUP, LLC, THE GS-10F-0150W 8029170584 MONTPELIER ,VT s/w/wo/ew/d
CLAENE GROUP LLC 47QRAA22D00AJ 913-787-2404 CHARLESTON ,SC s/w/wo
CITADEL ENVIRONMENTAL SERVICES, INC. GS-10F-0281V 818-246-2707 GLENDALE ,CA s
CIRRUS ECOLOGICAL SOLUTIONS, L.C. GS-10F-0164T 4357871490 LOGAN ,UT s
CIRCLEPOINT GS-00F-0012R (510) 285-6700 OAKLAND ,CA s
CHLOETA HOLDINGS LLC GS-10F-049BA 877-245-6382 OKLAHOMA CITY ,OK s/d/h/ai
CHEROKEE NATION MANAGEMENT & CONSULTING, L.L.C.. GS-00F-302GA 918-430-3407 TULSA ,OK o
CHENEGA RELIABLE SERVICES LLC 47QSHA21D001A 210-236-3934 SAN ANTONIO ,TX s/d/8a/an/8aS
CHENEGA FACILITIES MANAGEMENT LLC 47QSHA20D0033 256-665-0610 SAN ANTONIO ,TX o
CENTAUR CONSULTING GROUP LLC 47QRAA22D00DL 240 338-1705 CLARKSBURG ,MD s/d
CENPEC, LLC 47QRAA23D005G 202-657-1521 GERMANTOWN ,MD s/wo/d/8a
CE2 CORPORATION, INC. GS-00F-207CA 510-816-1517 PLEASANTON ,CA s/d
CDM FEDERAL PROGRAMS CORPORATION GS-00F-085CA 303-383-2300 FAIRFAX ,VA o
CASTLE HILL ASSOCIATES, LLC 47QRAA18D00BP (567) 952-0212 WATERVILLE ,OH s/w/wo/dv/d
CASHINS & ASSOCIATES, INC 47QRAA24D003T (781)245-1400 WAKEFIELD ,MA s/w/wo    
CALICHE, LTD.       47QRAA22D000M (281)356-6038 MAGNOLIA ,TX s/v  
CALIBRE SYSTEMS INC GS-00F-185CA 7037978500 ALEXANDRIA ,VA o
CABRERA SERVICES INC 47QRAA18D000H 860-569-0095 EAST HARTFORD ,CT s
C2 ALASKA, LLC 47QSHA22D000D 2102934128 SAN ANTONIO ,TX s/d/8a/an/8aS
C.J. SETO SUPPORT SERVICES, LLC GS-10F-0408R 805-233-2047 VENTURA ,CA s/dv/d
C. H. GUERNSEY & COMPANY 47QRAA19D00DM 405-416-8155 OKLAHOMA CITY ,OK o
BURNS & MCDONNELL ENGINEERING COMPANY, INC. 47QRAA18D0054 816-822-4343 KANSAS CITY ,MO o
BURLESON CONSULTING, INC. GS-10F-0277R (913)202-7528 SACRAMENTO ,CA s/d/ai  
BSA ENVIRONMENTAL SERVICES INC GS-10F-0302S 216-765-0582 BEACHWOOD ,OH s
BROWN AND CALDWELL       47QRAA21D008Z (303)968-2013 WALNUT CREEK ,CA o    
BROCKINGTON AND ASSOCIATES, INC. GS-10F-0145U 843-881-3128 ATLANTA ,GA s
BROADBENT & ASSOCIATES, INC. 47QRAA20D004L 775-322-7969 EXT. 60 HENDERSON ,NV o
BRIC LLC 47QRAA20D007L 505-259-8187 SCOTTSDALE ,AZ s/d/8a/h/to/8aS
BRATSLAVSKY CONSULTING ENGINEERS, INC. GS-00F-071CA 9072807619 ANCHORAGE ,AK s
BRANDES & CASSAGNOL ENGINEERS PC 47QRAA23D009X (859)392-0425 WASHINGTON ,DC s/d    
BOSTON GOVERNMENT SERVICES, LLC GS-00F-013GA 202-262-8098 OAK RIDGE ,TN o
BOOZ ALLEN HAMILTON INC       GS-00F-008DA 7033774359 MCLEAN ,VA o
BOGGS ENVIRONMENTAL CONSULTANTS, INC. 47QRAA21D006A 301-694-5687 MIDDLETOWN ,MD s
BMT DESIGNERS & PLANNERS, INC. GS-00F-337CA 703-920-7070 ARLINGTON ,VA o
BLUESTONE ENVIRONMENTAL GROUP, INC. GS-00F-117DA 610-647-9500 MALVERN ,PA s/w/wo/ew/8a/8aS
BIOTOPE FORESTRY & ENVIRONMENTAL, LLC       47QRAA23D004S 8285075523 NACOGDOCHES ,TX s/d
BIORESOURCE CONSULTANTS, INC       GS-10F-0437X (805)646-9006 OJAI ,CA s/d  
BIODIVERSITY RESEARCH INSTITUTE INC GS-10F-226AA 2078397600X215 PORTLAND ,ME o
BIO-WEST INC GS-10F-0331S 435-752-4202 LOGAN ,UT s
BHATE ENVIRONMENTAL ASSOCIATES, INC. 47QRAA19D004S 2059184033 BIRMINGHAM ,AL s
BBJ GROUP LLC GS-10F-0471X 312-219-7769 CHICAGO ,IL s
BB&E, INC. 47QRAA20D007E 2484899636 NORTHVILLE ,MI s
BATTELLE MEMORIAL INSTITUTE GS-00F-084CA 614-424-3522 COLUMBUS ,OH o
BATTA ENVIRONMENTAL ASSOCIATES INC GS-10F-0004T 3027373376 NEWARK ,DE s/d
AYUDA COMPANIES GS-10F-0043W 3035478745 DENVER ,CO s/w/wo/ew/d/h
AXIS MANAGEMENT GROUP, LLC 47QRAA18D007F 540-338-5071 MCLEAN ,VA s/w/wo/ew/d
AWEN SOLUTIONS GROUP, LLC 47QRAA24D001F (202)422-8387 WOODBRIDGE ,VA s/dv    
AVANTUS FEDERAL LLC GS-00F-151CA 571-551-2726 MCLEAN ,VA o
AVANTI CORPORATION 47QRAA20D002D 703-765-0060 ALEXANDRIA ,VA s/w/wo/ew/d
AVALON BUSINESS ENGINEERING SERVICES, LLC 47QRAA20D003E (801) 447-1623 CLEARFIELD ,UT s/w/wo/ew/dv/d
AUXILIO MANAGEMENT SERVICES       GS-00F-005HA 7203271068 DENVER ,CO s/w/wo/ew/d
ATTAINX INC. GS-35F-293DA 7034245594 HERNDON ,VA s/w/wo/ew/d/8a/8aS
ATMOS SOLUTIONS INC 47QRAA23D007S (859)392-0425 WASHINGTON ,DC s/d/8a/h/8aS    
ATKINSREALIS USA INC 47QRAA21D002Z 813 281 4430 TAMPA ,FL o
ATI, INC. 47QRAA18D00E9 410-992-3424 COLUMBIA ,MD s/d
ATCS, P.L.C. GS-10F-0040V 703-817-3544 HERNDON ,VA o
ASPEN ENVIRONMENTAL GROUP 47QRAA22D00EH (818) 597-3407 AGOURA HILLS ,CA s/d
ASPEN CRM SOLUTIONS, INC. GS-10F-0013V 505-466-3162 SANTA FE ,NM s/w
ASM AFFILIATES 47QRAA19D0092 3102783100 CARLSBAD ,CA s
ASIR LLC GS-10F-0249X 505-247-9337 ALBUQUERQUE ,NM s
ARRO CONSULTING INC 47QRAA22D00A7 717-706-9100 LITITZ ,PA s
ARM ENVIRONMENTAL SERVICES INC. 47QRAA23D007N 803-378-3314 COLUMBIA ,SC s
ARC ENVIRONMENTAL, LLC GS-10F-0007S 4106599971 BALTIMORE ,MD s
APPLIED MARINE SCIENCES 47QRAA19D005B 925-373-7142 LIVERMORE ,CA s
APPLIED INTELLECT LLC GS-10F-026BA 724-765-0402 CRANBERRY TOWNSHIP ,PA s/d
APPLIED INSIGHT, LLC GS-00F-145GA 703-215-8100 RESTON ,VA o
APPLIED ENVIROSOLUTIONS INC GS-10F-0324S 480-839-7000 GUADALUPE ,AZ s/w/wo/ew/d
APPLIED ENVIRONMENTAL, INC. 47QRAA19D0098 (703) 648-0822 HERNDON ,VA s/w/wo
APPLIED EARTHWORKS, INC. 47QRAA24D003J (559)229-1856 FRESNO ,CA s    
APPLIED EARTHWORKS, INC. GS-10F-0332P (559) 229-1856 FRESNO ,CA s
ANDERSON ENGINEERING OF MINNESOTA, LLC       47QRAA18D006J 763-412-4000 MINNEAPOLIS ,MN s/dv
ANAMAR ENVIRONMENTAL CONSULTING, INC. GS-10F-091CA 3523779168 ALACHUA ,FL s/w/wo
ANALYTIC SERVICES INC. GS-00F-095CA 7034161304 FALLS CHURCH ,VA o
AMERICAN COMPLIANCE TECHNOLOGIES, INC.
(DBA: A-C-T ENVIRONMENTAL & INFRASTRUCTURE, INC.)
GS-00F-302DA 8635332000 BARTOW ,FL s
ALTHOUSE & MEADE, INC. 47QRAA19D005T (805)237-9626 PASO ROBLES ,CA s/w/wo/d  
ALTA ARCHAEOLOGICAL CONSULTING LLC 47QRAA18D009U 7075444206 SANTA ROSA ,CA s/w/wo/ew/d
ALPINE ARCHAEOLOGICAL CONSULTANTS INC 47QRAA24D0031 (970)249-6761 MONTROSE ,CO s/w/wo    
ALPINE ARCHAEOLOGICAL CONSULTANTS INC GS-10F-0004S 970-249-6761 EXT 38 MONTROSE ,CO s
ALPHA-OMEGA TRAINING AND COMPLIANCE INC GS-10F-0350Y 321-704-1729 TITUSVILLE ,FL s/v
ALPHA FACILITIES SOLUTIONS, LLC 47QRAA20D000T 210-601-3190 SAN ANTONIO ,TX s/dv/d
ALLIANT CORPORATION GS-10F-0110V 8653630726 KNOXVILLE ,TN s/dv
ALLIANCE SOLUTIONS GROUP, INC. GS-10F-0272W 757-223-7233 NEWPORT NEWS ,VA s/dv
ALLEGHENY SCIENCE & TECHNOLOGY CORPORATION GS-10F-053AA 304-319-0044 BRIDGEPORT ,WV s/w/wo
ALFRED BENESCH & CO GS-10F-0181W 570-624-4266 CHICAGO ,IL o
ALBION ENVIRONMENTAL, INC. GS-10F-0301W (831)469-9128 SANTA CRUZ ,CA s  
ALASKA BIOMAP, INC 47QSWA19D000K 907-321-2908 JUNEAU ,AK s/w/wo
AIR RESOURCE SPECIALISTS, INC GS-10F-0046U 9704847941 FORT COLLINS ,CO s
AHTNA PROFESSIONAL SERVICES, INC. 47QRAA21D00A9 907-868-8262 ANCHORAGE ,AK s/d/an
AH ENVIRONMENTAL CONSULTANTS, INC. 47QRAA18D00AU 757-873-4959 NEWPORT NEWS ,VA s
AGEISS INC 47QRAA19D00BC 720-439-4322 LAKEWOOD ,CO o
AEROSOL MONITORING & ANALYSIS, INC. 47QRAA19D0063 4106843327 HANOVER ,MD s/d
AERO E H & S INC GS-10F-0379Y 4104803636 ELLICOTT CITY ,MD s
AEHS INCORPORATED GS-10F-0227R 2106569300 SAN ANTONIO ,TX s
AECOM TECHNICAL SERVICES, INC. GS-00F-188CA 512-630-4479 LOS ANGELES ,CA o
ADVANCED TECHNOLOGIES AND LABORATORIES (ATL) INTERNATIONAL, INC. GS-00F-067CA 865-567-6793 GAITHERSBURG ,MD s/w/wo
ADVANCED RESOURCES INTERNATIONAL, INC GS-10F-077AA (703)528-8420 ARLINGTON ,VA s  
ADVANCED RESOURCE SOLUTIONS, INC GS-10F-0261S 530-676-1095 CAMERON PARK ,CA s
ADVANCED MATRIX, INC. 47QRAA22D00BP 734-635-0066 PLYMOUTH ,MI s/d/8a/8aS
ADVANCED ENVIRONMENTAL, LLC 47QRAA21D004G (408)512-2912 SAN JOSE ,CA s    
ADVANCED ENVIRONMENTAL MANAGEMENT GROUP, LLC GS-10F-0338X 734-354-9070 PLYMOUTH ,MI s/d
ADVANCED AIR ANALYSIS, INC GS-00F-154GA (410)653-7676 PIKESVILLE ,MD s/d  
ADANTA, INC. GS-10F-041CA 707-709-8894 NAPA ,CA s/w/wo/ew/d/ai
ACUITY - PT&C, LLC 47QRAA19D003A 7702000192 RESTON ,VA o
ACT SAFE, L.L.C. 47QRAA22D000Y 712-223-9989 SIOUX CITY ,IA s/w/wo/ew/dv/d/8a/8aS
ABT ASSOCIATES INC GS-00F-252CA 301-347-5093 ROCKVILLE ,MD o
ABR, INC. 47QRAA20D0010 (907) 455-6777 EXT. FAIRBANKS ,AK s
AARCHER, INC. 47QRAA22D003B 410-897-9100 X103 ANNAPOLIS ,MD s
A.I.S., INC. GS-10F-0131T 508-990-9054 DARTMOUTH ,MA s
3D ENVIROLOGICS LLC GS-10F-023CA 4349894223 BARBOURSVILLE ,VA s/w/wo
* Contract Closed for New Awards



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