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Phone: 1-800-488-3111
E-mail: ncsccustomer.service@gsa.gov

MAS Multiple Award Schedule
Professional Services - Technical and Engineering Services (non-IT)
Category Description
541370GIS Geographic Information Systems (GIS) Services Geographic Information Services (GIS) provided in support of environmental program include: cultural resource GIS (CRGIS); groundwater monitoring; growth forecast modeling; habitat conservation plans; habitat modeling; image analysis support for emergency response; mapping, cartography, and mashups (e.g., combining data from more than one source into a single integrated tool to include aerial mapping); migration pattern analysis; natural resource planning; remote sensing for environmental studies; terrestrial, marine, and/or atmospheric measuring/management; vegetation mapping; and watershed characterization for mitigation planning.

NOTE: The services offered under this scope shall NOT include surveying and mapping services as set forth in FAR Part 36, and defined under the Brooks Act of 1972 (Public Law 92-582, 40 U.S. 1102 et seq.).
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ZIA ENGINEERING & ENVIRONMENTAL CONSULTANTS, L.L.C. GS-10F-0391N 575-680-2337 LAS CRUCES ,NM s/d
ZEPHYR ENVIRONMENTAL CORP GS-00F-008GA 512-879-6639 AUSTIN ,TX s
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 INC. 47QRAA19D003Q (212)465-5023 NEW YORK ,NY o  
WOOLPERT, INC. GS-00F-0038N 937-531-1309 DAYTON ,OH o
WOODARD & CURRAN, INC. GS-10F-0086M 800.426.4262 PORTLAND ,ME o
WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. GS-00F-314CA (610)877-6109 BLUE BELL ,PA o  
WILSON & COMPANY, INC., ENGINEERS & ARCHITECTS 47QRAA21D0052 505-348-4194 ALBUQUERQUE ,NM o
WHITE SHIELD, INC. GS-10F-0357U 509-547-0100 PASCO ,WA s/d
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. 47QRAA19D00BT 7039697418 ALBUQUERQUE ,NM o
WESTERN ECOSYSTEMS TECHNOLOGY, INC.       GS-10F-072BA (307)634-1756 CHEYENNE ,WY o  
WEST KERN ENVIRONMENTAL CONSULTING, LLC GS-00F-408GA 8009301980 BAKERSFIELD ,CA s/w/wo/ew/d/8a
WENCK ASSOCIATES, INC. GS-10F-0220W 678-987-5854 MAPLE PLAIN ,MN s
WCP INC. GS-10F-0127U (808)596-4688 HONOLULU ,HI s/h  
WATER, CIVIL, AND ENVIRONMENTAL INCORPORATED GS-00F-386GA (208) 319-9744 BOISE ,ID s/w/wo/ew/d/8a
VISTA SCIENCES CORPORATION 47QRAA18D009E 575-526-9558 LAS CRUCES ,NM s/d
VERNADERO GROUP INCORPORATED GS-10F-0033T 4803151000 PHOENIX ,AZ s/v
VANASSE HANGEN BRUSTLIN INC GS-00F-116CA 804-441-7439 WILLIAMSBURG ,VA o
TUKUH TECHNOLOGIES, LLC       47QRAA21D000R 816-708-1045 KANSAS CITY ,MO s/d/8a
TRINITY ENGINEERING ASSOCIATES, INC. GS-10F-0306P (513) 620-7115 CINCINNATI ,OH s/wo/ew/8a
TRINITY CONSULTANTS, INC.       GS-10F-0256N (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
TRC ENVIRONMENTAL CORPORATION GS-10F-0401M (978)656-3620 WINDSOR ,CT o  
TRANSYSTEMS CORPORATION 47QRAA19D001C 510-835-9898 KANSAS CITY ,MO o
TRANSPO GROUP USA, INCORPORATED       47QRAA21D0051 (425)821-3665 KIRKLAND ,WA s    
TRANSCON ENVIRONMENTAL INC.       GS-10F-0192M 707-786-6502 MESA ,AZ s/d
TIERRA RIGHT OF WAY SERVICES, LTD. GS-10F-0038T 520-319-2106 TUCSON ,AZ o
TETRAHEDRON INC GS-10F-0598N 410-837-0512 BALTIMORE ,MD s/w/d/8a
TETRA TECH, INC. GS-00F-168CA 8056813102 PASADENA ,CA o
TETRA TECH EC, INC. 47QRAA18D00H0 8036414928 GOLDEN ,CO o
TERWILLIGER CONSULTING, INC. 47QRAA21D003F (757)787-3974 LOCUSTVILLE ,VA s/w/wo    
TECTONIC ENGINEERING CONSULTANTS, GEOLOGISTS & LAND SURVEYORS, D.P.C. GS-00F-015BA 1-845-534-5959 MOUNTAINVILLE ,NY o
TECHLAW CONSULTANTS, INC. 47QSWA18D008B 7038183233 CHANTILLY ,VA o
T3W BUSINESS SOLUTIONS, INC. 47QRAA19D000N 6192980888 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
SURVEYING AND MAPPING, LLC 47QRAA18D008X 512-447-0575 AUSTIN ,TX o
SURF TO SNOW ENVIRONMENTAL RESOURCE MANAGEMENT, INC. 47QRAA21D000B 925-362-3114 SAN RAMON ,CA s/dv/d
STRAUGHAN ENVIRONMENTAL, INC. GS-10F-014CA 4435392535 COLUMBIA ,MD s/w/wo/ew/d
STILLWATER ECOSYSTEM, WATERSHED & RIVERINE SCIENCES GS-10F-0216S 5108488098 BERKELEY ,CA s/w/wo
STETSON ENGINEERS, INC       GS-10F-0404P (415)457-0701 SAN RAFAEL ,CA s  
STEARNS, CONRAD AND SCHMIDT CONSULTING ENGINEERS, INC. 47QRAA20D002R 5713532020 LONG BEACH ,CA o
STANTEC CONSULTING SERVICES INC. 47QRAA19D000Q 916-418-8338 BROOMFIELD ,CO o
SPECTRUM GIS, INC. GS-10F-0402Y 702 795 8254 LAS VEGAS ,NV s/w/wo
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
SPATIAL INFORMATICS GROUP LLC 47QRAA20D004S 510-427-3571 PLEASANTON ,CA s
SONOMA TECHNOLOGY, INC. 47QRAA18D00D1 707-665-9900 PETALUMA ,CA s
SOLV LLC 47QRAA18D00DH 7037604801 MC LEAN ,VA s
SOFTWARE & SCANNING SERVICES 47QRAA21D005N (504)887-2900 NEW ORLEANS ,LA s/w/wo/ew/d    
SHERPA 6, INC. 47QRAA21D000A 703-260-8188 X188 LITTLETON ,CO s/dv
SES, INC. GS-10F-0460M 9133070046 LENEXA ,KS s
SANBORN MAP COMPANY, INC., THE GS-10F-0099W (719) 264-5510 COLORADO SPRINGS ,CO o
S.S. PAPADOPULOS & ASSOCIATES, INC. GS-10F-0462M 3017188900 ROCKVILLE ,MD s
S P CRAMER & ASSOCIATES INC 47QRAA19D0045 (888) 224-1221 PORTLAND ,OR s
ROSS & ASSOCIATES ENVIRONMENTAL CONSULTING, LTD. GS-00F-0045P 2064471805 SEATTLE ,WA s
RIVERSIDE TECHNOLOGY, INC. GS-00F-0026P 9702149419 FORT COLLINS ,CO o
RESPEC COMPANY, LLC GS-00F-0078N (605) 394-6400 RAPID CITY ,SD o
RESEARCH TRIANGLE INSTITUTE GS-00F-354CA 919-541-6543 RESEARCH TRIANGLE P ,NC o
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
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
RECON ENVIRONMENTAL GS-10F-0339M 6193089333 SAN DIEGO ,CA s
R2T, INC. GS-00F-129GA (770)569-7038 ATLANTA ,GA s/w/wo/ew/d  
QUATERNARY RESOURCE INVESTIGATIONS, L.L.C. GS-10F-105BA 2252921400 BATON ROUGE ,LA s/w/wo/ew/d
QUANTUM SPATIAL, INC. 47QTCA18D001X 608-556-2580 SAINT PETERSBURG ,FL o
PROFESSIONAL ENVIRONMENTAL ENGINEERS, INC. GS-10F-200BA 314-531-0060 SAINT LOUIS ,MO s/w
PREMIER DATA SERVICES, INC 47QTCA19D001D 303.377.0033 ENGLEWOOD ,CO o
POTOMACWAVE CONSULTING, INC. GS-00F-0007X 703-963-5064 ALEXANDRIA ,VA o
PORTAGE, INC. GS-00F-262CA (208)419-4152 IDAHO FALLS ,ID s  
PIONEER TECHNICAL SERVICES, INC. GS-10F-050AA 406-497-8057 BUTTE ,MT s
PERSPECTA SERVICES & SOLUTIONS INC. GS-00F-296CA 571-521-7776 HERNDON ,VA o
PERIKIN ENTERPRISES, LLC GS-00F-003AA 505-333-0501 ALBUQUERQUE ,NM s/d/8a/h
PC TRASK AND ASSOCIATES INC. 47QRAA19D000H 503.517.2490 PORTLAND ,OR s
PARSONS GOVERNMENT SERVICES INC. 47QRAA19D000A (210) 477-1616 PASADENA ,CA o
PARAMETRIX, INC. GS-10F-0013N (253)863-5128 PUYALLUP ,WA o  
PANORAMA ENVIRONMENTAL, INC. 47QRAA20D0091 858-349-8883 SAN FRANCISCO ,CA s/w/wo/ew/d
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
PACIFIC WATERSHED ASSOCIATES INC GS-10F-0244V (707)839-5130 MCKINLEYVILLE ,CA s  
PACE ENGINEERS INC GS-10F-023AA (425)827-2014 KIRKLAND ,WA s  
OTIS BAY, INC. GS-10F-0331Y (775)345-9960 VERDI ,NV s  
OTAK, INC. GS-10F-0401X 503-287-6825 PORTLAND ,OR o
ONEIDA TOTAL INTEGRATED ENTERPRISES, LLC 47QRAA20D009B 414-257-4200 MILWAUKEE ,WI s/d
OCEAN ASSOCIATES, INCORPORATED GS-10F-0567P 703-388-9548 ARLINGTON ,VA s/w/wo
NUTTER & ASSOCIATES, INC. 47QRAA19D009B 706-354-7925 ATHENS ,GA s/h
NOWAK & FRAUS, P.L.L.C. 47QRAA21D002J (412)404-6235 PONTIAC ,MI s    
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/8a
NORTH LINE GIS, LLC 47QRAA20D006H 888-453-4471 BRECKENRIDGE ,CO s
NORMANDEAU ASSOCIATES INC GS-10F-0319M 603-637-1115 BEDFORD ,NH o
NICHOLS CONSULTING ENGINEERS, CHTD. 47QRAA18D008A 7753294955 RENO ,NV s
NEXGEN TECHNOLOGIES, INC. GS-10F-0270W 720-377-1800 LAKEWOOD ,CO s
NATURES IMAGE, INC. GS-10F-045BA 9496804400 LAKE FOREST ,CA s/w/wo
NATURAL RESOURCE INNOVATIONS GMBH 47QRAA19D002P (622)510-694 HEIDELBERG ,
GERMANY
s    
NATIONAL OPINION RESEARCH CENTER 47QRAA20D001M 312-201-4462 CHICAGO ,IL o
MICHAEL BAKER INTERNATIONAL, INC. GS-00F-0032M 703-483-0029 ALEXANDRIA ,VA o
MERKEL & ASSOCIATES, INC. GS-10F-0060T 858-560-5465 SAN DIEGO ,CA s/w
MEAD AND HUNT, INC. GS-00F-230DA 906-629-1360 MIDDLETON ,WI o
MATRIX ENVIRONMENTAL SERVICES LLC GS-00F-057GA (303)572-0200 DENVER ,CO s  
MATRIX DESIGN GROUP, INC. 47QRAA19D009K 5719690495 COLORADO SPRINGS ,CO o
MASON BRUCE & GIRARD INC GS-10F-0295M 5032243445 PORTLAND ,OR s/d
MARSTEL-DAY, LLC GS-00F-070CA 7038395513 FREDERICKSBURG ,VA s/h
MANTECH SRS TECHNOLOGIES, INC. GS-10F-0054R 703-218-6440 HERNDON ,VA o
LYNKER TECHNOLOGIES LLC GS-00F-125CA 7034315855 LEESBURG ,VA o
LRS FEDERAL LLC GS-10F-0360T (410) 544-3570 SEVERNA PARK ,MD s/dv
LOW IMPACT DEVELOPMENT CENTER (LID), INC.       GS-10F-0084N 3019825559 BELTSVILLE ,MD o
LOGAN SIMPSON DESIGN INC. GS-10F-0063P (480)967-1343 TEMPE ,AZ o  
LJB INC GS-00F-049CA 937-259-5000 MIAMISBURG ,OH o
LINDAHL REED, INC. 47QRAA18D00GR 541/638-9264 REDMOND ,OR s/w/wo/ew/d/8a
LIMNO-TECH, INC. GS-10F-150BA (734) 332-1200 ANN ARBOR ,MI o
LG2 ENVIRONMENTAL SOLUTIONS INC       GS-10F-0375N 9043631686 X104 JACKSONVILLE ,FL s/w/wo/ew/d/8a
LEIDOS, INC. GS-00F-022CA (571) 526-7305 RESTON ,VA o
LARSON DESIGN GROUP, INC. 47QRAA19D00CU 412-528-0525 WILLIAMSPORT ,PA o
L S A ASSOCIATES, INC. 47QRAA18D009Y 949-553-0666 IRVINE ,CA o
KPGEO, LLC 47QRAA19D0052 8166953357 PRAIRIE VILLAGE ,KS s
KNIGHT FEDERAL SOLUTIONS INC 47QRAA19D004N 407-243-6008 ORLANDO ,FL s
KLEINSCHMIDT ASSOCIATES 47QRAA18D005P 717-576-6518 PITTSFIELD ,ME o
KLAMATH WILDLIFE RESOURCES GS-10F-0399Y 530-244-5652 REDDING ,CA s
KIER, WILLIAM M ASSOCIATES       GS-10F-0124U 415.721.7548 SAN RAFAEL ,CA s
KENIFIC GROUP INC, THE 47QRAA19D00C7 571-636-4002 FAIRFAX ,VA s/d
KELLER-BLIESNER ENGINEERING, LLC       47QRAA18D004Q 435-753-5651 LOGAN ,UT s
JOHNSON, MIRMIRAN & THOMPSON, INC. GS-00F-194CA 410-329-3100 HUNT VALLEY ,MD o
JOHNSON COMPANY, INC. THE GS-10F-0481P (802)229-4600 MONTPELIER ,VT s  
JGMS GOVERNMENT SERVICES, LLC GS-00F-0014Y 970-254-1354 GRAND JUNCTION ,CO s/d/8a
JE FULLER/HYDROLOGY AND GEOMORPHOLOGY, INC. GS-00F-079GA 480-222-5707 TEMPE ,AZ s
JARDON & HOWARD TECHNOLOGIES, INCORPORATED GS-00F-0059M 407-381-7797 ORLANDO ,FL o
JACOBS ENGINEERING GROUP INC. GS-00F-0025M (571) 218-1304 ARLINGTON ,VA o
J&M GLOBAL SOLUTIONS LLC GS-10F-0374X 5719706690 ALEXANDRIA ,VA s/w/wo/ew
INTEGRATED STATISTICS INCORPORATED GS-10F-0395N 5085408560 WOODS HOLE ,MA s/w/wo
INSIGNIA ENVIRONMENTAL 47QRAA20D005U 650-321-6787 MENLO PARK ,CA s/w/wo
IIC TECHNOLOGIES INC. GS-10F-0104V 4109977631 RIVERDALE ,MD o
IAP WORLD SERVICES INC GS-35F-407GA 321-784-7113 CAPE CANAVERAL ,FL o
I.M. SYSTEMS GROUP, INC. GS-00F-311CA 240-833-1889 ROCKVILLE ,MD o
HYDROSOLUTIONS INC GS-10F-0172X 4064436169 HELENA ,MT s/dv
HYDROGEOLOGIC, INC. 47QRAA18D00CW 7037364551 RESTON ,VA s
HORSLEY WITTEN GROUP, INC. GS-10F-0304T 508-833-6600 SANDWICH ,MA s
HORIZON ENVIRONMENTAL SERVICES, INC. 47QRAA19D00BS 970-259-4346 DURANGO ,CO s/w/wo/ew
HEXAGON US FEDERAL, INC. 47QRAA18D00A2 478-322-3258 HUNTSVILLE ,AL o
HELIX ENVIRONMENTAL PLANNING, INC. GS-10F-0020V 619.462.1515 LA MESA ,CA o
HDR ENGINEERING, INC. GS-00F-152CA 303-754-4252 OMAHA ,NE o
HARRIS ENVIRONMENTAL GROUP, INC. GS-10F-0457R 52006287648 TUCSON ,AZ s/w/wo/ew/d/8a/h
GSI NORTH AMERICA INC. 47QRAA19D002Z 808-393-7167 FLEMINGTON ,NJ s/d/8a
GSE, INC. 47QRAA18D008P 256-350-9754 TRINITY ,AL s/w/wo/d
GSD LLC 47QRAA21D0022 7572070809 WILLIAMSBURG ,VA s/v
GRYPHON ENVIRONMENTAL, LLC GS-10F-144BA 719-578-3330 COLORADO SPRINGS ,CO s/dv
GREENMAN-PEDERSEN, INC. 47QRAA21D004M 518-209-4823 BABYLON ,NY o
GREENMAN-PEDERSEN, INC. GS-23F-0032S 518-209-4823 BABYLON ,NY o
GRB ENVIRONMENTAL SERVICES INC GS-10F-0284X 212-564-8640 NEW YORK ,NY s/w
GIS SURVEYORS, INC. 47QRAA18D003P (619)471-1884 POWAY ,CA s/dv/d    
GEOSYNTEC CONSULTANTS INC GS-10F-0106M 919-424-1823 KENNESAW ,GA o
GEOMORPH INFORMATION SYSTEMS LLC GS-10F-0236X 619-787-7974 SAN DIEGO ,CA s/w/wo/ew/d/h
GEOGRAPHIC RESOURCE SOLUTIONS INC GS-10F-0451N 7078228005 ARCATA ,CA s
GEOGRAPHIC INFORMATION SERVICES, INC. 47QRAA19D00BD 2057255836 BIRMINGHAM ,AL o
GEOENGINEERS, INC. 47QRAA18D00E3 425.861.6000 REDMOND ,WA o
GENWEST SYSTEMS, INC.       GS-00F-0002W 425-771-2700 EDMONDS ,WA s/dv
GENERAL DYNAMICS INFORMATION TECHNOLOGY, INC. GS-00F-057CA 7039953733 FALLS CHURCH ,VA o
GARCIA AND ASSOCIATES GS-10F-0389R 4154585803 SAN ANSELMO ,CA o
FUGRO EARTHDATA, INC. GS-10F-0444P (301)948-8550 FREDERICK ,MD o  
FREESTONE ENVIRONMENTAL SERVICES, INC. 47QRAA18D00GS (509)943-5222 RICHLAND ,WA s  
FRED PHILLIPS CONSULTING LLC GS-10F-0024W (928)773-1530 FLAGSTAFF ,AZ s  
FPM GROUP, LTD. GS-00F-104CA 631-737-6200 BOHEMIA ,NY s
FIVE 9 GROUP, INC. 47QRAA20D0049 703-896-7620 FAIRFAX ,VA o
ESS GROUP, INC. GS-10F-0080W 401-330-1260 RIVERSIDE ,RI s
ESP ASSOCIATES, INC. GS-10F-189BA 336-232-5213 FORT MILL ,SC o
ERO RESOURCES CORPORATION 47QRAA21D0075 (303)830-1188 DENVER ,CO s/w/wo/d    
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
ENVIROSCIENCE, INC. GS-10F-0181U 330-688-0111 STOW ,OH s
ENVIRONMENTAL SCIENCE ASSOCIATES GS-10F-0191M 916.769.9303 SAN FRANCISCO ,CA o
ENVIRONMENTAL RESEARCH GROUP LLC GS-10F-142BA 4103665170 BALTIMORE ,MD s/w/wo/ew/dv/8a
ENVIRONMENTAL PLANNING GROUP, LLC GS-10F-0046N (602)956-4370 PHOENIX ,AZ s  
ENVIRONMENTAL COST MANAGEMENT, INC. GS-10F-0335R (510) 964-4399 COSTA MESA ,CA s/d
ENVIRON-CIVIL ENGINEERING, LTD GS-00F-317CA (410)461-6451 COLUMBIA ,MD s/d  
ENGINEERING & ENVIRONMENT, INC. 47QRAA21D0005 (757)457-0002 VIRGINIA BEACH ,VA s    
ELYON INTERNATIONAL, INC. GS-00F-203GA (360) 696-5892 VANCOUVER ,WA s/w/wo/ew/v/d
ECOSYSTEM SCIENCES GS-00F-277DA 2083830226 BOISE ,ID s
ECOSYSTEM RESEARCH GROUP LLC GS-10F-0288P 4067219420 MISSOULA ,MT s/h
ECOSPHERE ENVIRONMENTAL SERVICES, INC. GS-10F-0462N 970-382-7256 DURANGO ,CO s
ECORP CONSULTING, INC GS-10F-0010P 916-782-9100 ROCKLIN ,CA o
ECONOMIC CONSULTANTS OREGON, LTD. 47QRAA20D007U 503-200-5076 PORTLAND ,OR s
ECOLOGY AND ENVIRONMENT, INC. 47QRAA18D0073 (202)303-2613 ARLINGTON ,VA o  
ECO & ASSOCIATES INC GS-10F-0371U 714-289-0995 TUSTIN ,CA s/w/d/8a
EARTH RESOURCES TECHNOLOGY, INC. GS-00F-109CA 3013231435 LAUREL ,MD o
EA ENGINEERING, SCIENCE, AND TECHNOLOGY, INC., PBC 47QRAA19D005G 410-584-7000 HUNT VALLEY ,MD s
E & S ENVIRONMENTAL CHEMISTRY, INC.       47QRAA21D003Q 541-758-1330 CORVALLIS ,OR s
DYNAMIX CORPORATION GS-10F-0299P (301)513-0101 COLLEGE PARK ,MD s/d/h  
DS2 LLC 47QRAA19D005F 850-307-2781 NICEVILLE ,FL s/dv
DPRA INCORPORATED 47QRAA19D003T 785-564-6041 KNOXVILLE ,TN s
DOWNSTREAM STRATEGIES LLC GS-10F-103AA 304-292-2450 MORGANTOWN ,WV s
DESERT ARCHAEOLOGY, INC GS-10F-161AA 520-881-2244 TUCSON ,AZ s
DAVEY RESOURCE GROUP, INC. GS-10F-0615N (330)607-7464 KENT ,OH o  
CSA OCEAN SCIENCES INC. GS-10F-0443M 7729793134 STUART ,FL o
CRS CONSULTING ENGINEERS, INCORPORATED       47QRAA19D004X 801-359-5565 SALT LAKE CITY ,UT s/d
CRITIGEN LLC GS-10F-0480X 4254177194 GREENWOOD VILLAGE ,CO o
CORNERSTONE ENVIRONMENTAL CONSULTING, LLC       47QRAA19D0057 928-522-4148 FLAGSTAFF ,AZ s/d
COPPERHEAD ENVIRONMENTAL CONSULTING, INC 47QRAA18D00CR 8599259012 PAINT LICK ,KY s
CONSOLIDATED SAFETY SERVICES INCORPORATED GS-00F-217CA (703) 877-3352 FAIRFAX ,VA o
CONCURRENT TECHNOLOGIES CORPORATION 47QRAA21D0021 814-269-2871 JOHNSTOWN ,PA o
COMPREHENSIVE ENVIRONMENTAL INC. 47QRAA18D00DM 603-424-0564 BOLTON ,MA s/w/wo/ew/d
COMMONWEALTH HERITAGE GROUP,INC. GS-00F-261DA 5173206929 DEXTER ,MI s
COGSTONE RESOURCE MANAGEMENT GS-10F-0463X 714-974-8300 ORANGE ,CA s/w/wo/ew/d/8a
COASTAL ENVIRONMENTS, INC. GS-10F-0445N (225)383-7455 BATON ROUGE ,LA s  
CIRRUS ECOLOGICAL SOLUTIONS, L.C. GS-10F-0164T 4357871490 LOGAN ,UT s
CHESAPEAKE ENVIRONMENTAL COMMUNICATIONS, INC. 47QRAA18D005E (804)824-3945 RICHMOND ,VA s/w/wo/ew/d  
CARDNO GS, INC. GS-00F-196CA 9165487783 CHARLOTTESVILLE ,VA o
CALIBRE SYSTEMS, INC. GS-00F-185CA 7037978500 ALEXANDRIA ,VA o
C. H. GUERNSEY & COMPANY 47QRAA19D00DM 405-416-8278 OKLAHOMA CITY ,OK o
BURLESON CONSULTING, INC. GS-10F-0277R 916-984-4651 FOLSOM ,CA s/d
BROADBENT & ASSOCIATES, INC. 47QRAA20D004L 775-322-7969 EXT. 60 HENDERSON ,NV o
BRATSLAVSKY CONSULTING ENGINEERS, INC. GS-00F-071CA 9072807619 ANCHORAGE ,AK s
BOOZ ALLEN HAMILTON INC.       GS-00F-008DA 703-377-4359 MCLEAN ,VA o
BOHANNAN-HUSTON, INC. GS-00F-0001Y 505-798-7925 ALBUQUERQUE ,NM o
BIORESOURCE CONSULTANTS, INC.       GS-10F-0437X 805-646-9006 OJAI ,CA s/d
BIODIVERSITY RESEARCH INSTITUTE INC GS-10F-226AA 207-839-7600 PORTLAND ,ME o
BHATE ENVIRONMENTAL ASSOCIATES, INC. 47QRAA19D004S 2059184033 BIRMINGHAM ,AL s
BENT EAR SOLUTIONS LLC 47QRAA21D005T 7036557019 ALEXANDRIA ,VA s/v/d
BBJ GROUP LLC GS-10F-0471X 312-219-7769 CHICAGO ,IL s
BB&E, INC. 47QRAA20D007E 2484899636 NORTHVILLE ,MI s
BB&E, INC. GS-10F-0103N 2484899636 NORTHVILLE ,MI s
BATTELLE MEMORIAL INSTITUTE GS-00F-084CA 614-424-3522 COLUMBUS ,OH o
BALDWIN GROUP, INC. (THE) GS-00F-077CA (703)392-0918 MANASSAS ,VA s/w/wo  
B&B DIVERSIFIED ENTERPRISES, INC.       GS-00F-307DA (610)845-0640 BARTO ,PA s/w/wo/d  
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
AVALON BUSINESS ENGINEERING SERVICES, LLC 47QRAA20D003E 801 668-5823 CLEARFIELD ,UT s/w/wo/ew/dv/d/8a
ATLANTIC GROUP, LLC, THE GS-10F-106AA 2569719991 HUNTSVILLE ,AL s
ATKINS NORTH AMERICA, INC. 47QRAA21D002Z 813 281 4430 TAMPA ,FL o
ATKINS NORTH AMERICA, INC. GS-00F-007AA 813-281-4430 TAMPA ,FL o
ATCS, P.L.C. GS-10F-0040V 703-817-3544 HERNDON ,VA o
ASPEN ENVIRONMENTAL GROUP       GS-10F-0229N 818-597-3407 AGOURA HILLS ,CA s/d
ASM AFFILIATES INC 47QRAA19D0092 3102783100 CARLSBAD ,CA s
ASM AFFILIATES INC GS-10F-0373N (310) 278-3100 X 701 CARLSBAD ,CA s
ASIR, LLC GS-10F-0249X 505-247-9337 ALBUQUERQUE ,NM s
ARCHAEOLOGICAL CONSULTING SERVICES, LTD. GS-10F-0224P 480-894-5477 TEMPE ,AZ s/w
APPLIED MARINE SCIENCES, INC 47QRAA19D005B 925-373-7142 LIVERMORE ,CA s
ANDERSON ENGINEERING OF MINNESOTA, LLC       47QRAA18D006J 763-412-4000 MINNEAPOLIS ,MN s/dv
ANDERSON ENGINEERING & DESIGN, LLC 47QRAA18D00G0 (240)237-8475 LEXINGTON PARK ,MD s/dv  
ALTHOUSE & MEADE INC 47QRAA19D005T (805)237-9626 PASO ROBLES ,CA s/w/wo/d  
ALISTO ENGINEERING GROUP, INC. GS-10F-0080M 9252795000 WALNUT CREEK ,CA s
ALASKA BIOMAP, INC. 47QSWA19D000K 907-321-2908 JUNEAU ,AK s/w/wo
AERO GRAPHICS, INC GS-00F-269GA 801-487-3273 SALT LAKE CITY ,UT s/v
AERIAL INFORMATION SYSTEMS, INC. GS-00F-170GA 9097939493 REDLANDS ,CA s/w/wo
AECOM TECHNICAL SERVICES, INC. GS-00F-188CA 210-296-2000 LOS ANGELES ,CA o
ADVANCED RESOURCES INTERNATIONAL INC GS-10F-077AA 7035288420 ARLINGTON ,VA s
ADVANCED RESOURCE SOLUTIONS, INC GS-10F-0261S 530-676-1095 SHINGLE SPRINGS ,CA s
ABT ASSOCIATES, INC. GS-00F-252CA 301-347-5093 ROCKVILLE ,MD o
ABR INC 47QRAA20D0010 (907) 455-6777 EXT. FAIRBANKS ,AK s
A.I.S., INC. GS-10F-0131T 508-990-9054 DARTMOUTH ,MA s
A.D. MARBLE & CO., INC. GS-00F-411GA 484-533-2550 KING OF PRUSSIA ,PA s
A E H S INCORPORATED GS-10F-0227R 210-656-9300 SAN ANTONIO ,TX s/v
1SPATIAL INC. GS-10F-0291U 5126945416 VIENNA ,VA o