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00CORP The Professional Services Schedule (PSS)
Environmental Services
Category Description
899 1 Environmental Consulting Services The services include, but are not limited to consultation in the areas of: 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); Endangered species, wetland, watershed, and other natural resource management plans; Archeological and/or cultural resource management plans; Environmental program and project management; Environmental regulation development; Climate change adaptation and resiliency planning and implementation support, including but not limited to, identifying climate risks and impacts; applying and interpreting climate and impact assessment model outputs; development and/or implementation of solutions to build climate resilience, reduce identified climate risks, and/or provide both climate change mitigation and adaptation benefits; climate decision support, risk management, and vulnerability assessments and analyses; and climate risk communications and training; Economic, technical and/or risk analysis; other environmentally related studies and/or consultations; Homeland Security solutions that include Biochemical protection; Crime prevention through environmental design surveys (CPTED); Economical, technical and/or risk analysis; Identification and mitigation of threats inclusive of protective measures to mitigate the threats; and Vulnerability assessments. Compliance Services such as review, audit, and implementation/management of EMS and other compliance and contingency plans and performance measures; Permitting; Spill prevention/control and countermeasure plans; Pollution prevention surveys; and Community Right to-Know Act reporting. Advisory Services for ongoing advice and assistance with data and information in support of agency environmental programs involving areas such as Hazardous material spills; Material safety data sheets (MSDS), Biological/medical data sheets; Information hotlines; Poison control hotlines; Environmental regulations and environmental policy/procedure updates; Management, furnishing, or inventory of MSDS. Waste Management Consulting Services to provide guidance in support of waste-related data collection, feasibility studies and risk analyses; Resource Conservation and Recovery Act/Comprehensive Environmental Response Compensation and Liability Act (RCRA/CERCLA) site investigations; Hazardous and/or non-hazardous exposure assessments; Waste characterization and source reduction studies; Review and recommendation of waste tracking or handling systems; Waste management plans and/or surveys; Waste minimization/pollution prevention initiatives; and Review of technologies and processes impacting waste management.
Note: Services involving only the consulting portion of environmental remediation efforts are included under this SIN. Any actual remediation efforts are performed under SIN 899-8.
593 contractors

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3D ENVIROLOGICS LLC GS-10F-023CA 4349894223 EARLYSVILLE ,VA s/w/wo
A E H S INCORPORATED GS-10F-0227R (210)656-9300 SAN ANTONIO ,TX s/v  
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 MARION ,MA s
AARCHER INC GS-10F-0451M 4108979100 ANNAPOLIS ,MD s
ABR INC GS-10F-0175M 907-455-6777 FAIRBANKS ,AK s
ABT ASSOCIATES INC. GS-00F-252CA 301-347-5093 CAMBRIDGE ,MA o
ACADIAN CONSULTING GROUP 47QRAA19D000Z 2257692603 BATON ROUGE ,LA s
ADANTA, INC. GS-10F-041CA 707-709-8894 NAPA ,CA s/w/wo/ew/d/8a
ADI NV INC GS-00F-048DA (702)435-3731 HENDERSON ,NV s/w/wo  
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 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 3015156785 GAITHERSBURG ,MD s/w/wo
AERO E H & S INC GS-10F-0379Y 410-480-3636 ELLICOTT CITY ,MD s
AEROSOL MONITORING & ANALYSIS 47QRAA19D0063 4106843327 HANOVER ,MD s/d
AEROSOL MONITORING & ANALYSIS GS-10F-0386K 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 CHEYENNE ,WY o
AGEISS INC. GS-10F-0091K 303-674-5059 CHEYENNE ,WY 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
AKRF, INC. GS-00F-011GA (646)388-9716 NEW YORK ,NY o  
ALBION ENVIRONMENTAL INC GS-10F-0301W (831) 469-1777 SANTA CRUZ ,CA s
ALFRED BENESCH & COMPANY GS-10F-0181W 4024792200 CHICAGO ,IL o
ALISTO ENGINEERING GROUP, INC. GS-10F-0080M (925)279-5000 WALNUT CREEK ,CA s  
ALLIANCE SOLUTIONS GROUP, INC. GS-10F-0272W 757-223-7233 NEWPORT NEWS ,VA s/dv
ALLIANT CORPORATION GS-10F-0110V 865-363-0726 KNOXVILLE ,TN s/dv
ALPHA-OMEGA TRAINING AND COMPLIANCE INC GS-10F-0350Y 3214459845 EXT 6 COCOA ,FL s/v
ALPINE ARCHAEOLOGICAL CONSULTANTS, INC. GS-10F-0004S 970-249-6761 EXT. 38 MONTROSE ,CO s
ALTA ARCHAEOLOGICAL CONSULTING LLC 47QRAA18D009U 707 544 4206 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 863-533-2000 BARTOW ,FL s
AMY S GREENE ENVIRONMENTAL CONSULTANTS INC GS-10F-0002T 908-788-9676 FLEMINGTON ,NJ s/w/wo
ANALYSIS, PLANNING AND MANAGEMENT INSTITUTE, INC. 47QRAA19D0047 (844)470-8802 CULPEPER ,VA o    
ANAMAR ENVIRONMENTAL CONSULTING, INC. GS-10F-091CA 3523779168 GAINESVILLE ,FL s/w/wo
ANCHOR QEA, LLC GS-10F-0590N 2062879130 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 4808397000 TEMPE ,AZ s/w/wo/ew/d
APPLIED INTELLECT GS-10F-026BA 571-510-0862 WEXFORD ,PA s/d/8a
APPLIED MARINE SCIENCES, INC 47QRAA19D005B 925-373-7142 LIVERMORE ,CA s
APPLIED RESEARCH ASSOCIATES, INC. GS-00F-341CA 505-881-8074 ALBUQUERQUE ,NM o
AQUAETER, INC. GS-10F-0188X 6153738532 BRENTWOOD ,TN s/d
ARC ENVIRONMENTAL, INC. GS-10F-0007S (410)659-9971 BALTIMORE ,MD s  
ARCADIS U.S., INC. GS-00F-179CA 757-419-3976 HIGHLANDS RANCH ,CO o
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 803-442-7661 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 X101 CARLSBAD ,CA s
ASPEN CULTURAL RESOURCE MANAGEMENT SOLUTIONS GS-10F-0013V 505-466-3162 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 7208375628 LAFAYETTE ,LA o
ATCS, P.L.C. GS-10F-0040V 703-430-7500 HERNDON ,VA o
ATI, INC. 47QRAA18D00E9 4109923424 COLUMBIA ,MD s/d/8a
ATKINS NORTH AMERICA, INC. GS-00F-007AA 813-281-4584 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
AVANTI CORPORATION GS-10F-0308P 703-765-0060 ALEXANDRIA ,VA s/w/wo
AVATAR ENVIRONMENTAL LLC GS-10F-0090N 6106928330 X23 WEST CHESTER ,PA s/dv
AXIS MANAGEMENT GROUP LLC 47QRAA18D007F 540-338-5071 MCLEAN ,VA s/w/wo/ew/d/8a
AYUDA COMPANIES GS-10F-0043W 3039992152 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
BANDA GROUP INTERNATIONAL, LLC GS-10F-028CA 4806368734 CHANDLER ,AZ s/v/d/8a
BAT ASSOCIATES, INC. GS-10F-0123L 8653632430 OAK RIDGE ,TN o
BATTA ENVIRONMENTAL ASSOCIATES, INC. GS-10F-0004T 302.584.1154 NEWARK ,DE s/d
BATTELLE MEMORIAL INSTITUTE GS-00F-084CA 614-424-4647 COLUMBUS ,OH o
BB&E, INC. GS-10F-0103N 2484899636 NORTHVILLE ,MI s
BBJ GROUP LLC GS-10F-0471X 312-644-8556 X221 CHICAGO ,IL s
BHATE ENVIRONMENTAL ASSOCIATES, INC. 47QRAA19D004S 205-918-4044 BIRMINGHAM ,AL s
BHATE ENVIRONMENTAL ASSOCIATES, INC. GS-10F-0312K 2059184000 BIRMINGHAM ,AL s
BIO-WEST, INC. GS-10F-0331S 435-752-4202 LOGAN ,UT s
BIODIVERSITY RESEARCH INSTITUTE INC GS-10F-226AA 207-887-7160 PORTLAND ,ME o
BIORESOURCE CONSULTANTS, INC.       GS-10F-0437X 805-844-5820 OJAI ,CA s/d
BLUESTONE ENVIRONMENTAL GROUP INC. GS-00F-117DA 484.802.5150 BERWYN ,PA s/w/wo/ew/8a
BMT DESIGNERS & PLANNERS, INC. GS-00F-337CA 703-920-7070 ARLINGTON ,VA o
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 9072725264 ANCHORAGE ,AK s/w/wo/ew/d
BROCKINGTON AND ASSOCIATES, INC. GS-10F-0145U (678)638-4155 ATLANTA ,GA s  
BROWN AND CALDWELL GS-10F-0101L (303)968-2013 DAVIS ,CA o  
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. H. GUERNSEY & COMPANY GS-00F-0067N 405-416-8100 OKLAHOMA CITY ,OK o
C.J. SETO SUPPORT SERVICES, LLC GS-10F-0408R 805-544-1214 VENTURA ,CA s/dv/d
CABRERA SERVICES INC. 47QRAA18D000H 860-569-0095 EAST HARTFORD ,CT s/d
CADMUS GROUP, INC., THE       GS-00F-227CA 617-673-7000 WALTHAM ,MA o
CALIBRE SYSTEMS, INC. GS-00F-185CA 7037978560 ALEXANDRIA ,VA o
CARDNO GS, INC. GS-00F-196CA 916-355-1248 CHARLOTTESVILLE ,VA o
CARDNO, INC. GS-10F-0041L 925-988-1265 LONE TREE ,CO o
CASTLE HILL ASSOCIATES, LLC 47QRAA18D00BP 5679520212 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 925-400-4577 PLEASANTON ,CA s/d
CH2M HILL, INC. GS-00F-018CA 8655602907 ENGLEWOOD ,CO o
CHAMBERS GROUP, INC. GS-10F-0074K 949-261-5414 SANTA ANA ,CA o
CHEROKEE NATION GOVERNMENT SOLUTIONS GS-00F-174CA 303-277-1444 CATOOSA ,OK s
CHEROKEE NATION MANAGEMENT & CONSULTING, L.L.C. GS-00F-302GA 210-323-4113 CATOOSA ,OK s/d/8a
CHESAPEAKE ENVIRONMENTAL COMMUNICATIONS, INC. 47QRAA18D005E 804-832-0630 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 510-285-6738 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 802-917-0581 WASHINGTON ,DC s/w/wo/ew/d
CLEAN HARBORS ENVIRONMENTAL SERVICES, INC. GS-10F-0270M 972-265-2456 NORWELL ,MA o
CLEAN VENTURE, INC. GS-10F-0254N 8568638778 AVENEL ,NJ o
COASTAL ENVIRONMENTS, INC. GS-10F-0445N 2253837455 EXT110 BATON ROUGE ,LA s
COGSTONE RESOURCE MANAGEMENT GS-10F-0463X 7149748300 ORANGE ,CA s/w/wo/ew/d/8a
COLEMAN, JASON A
(DBA: SOLANO ARCHAEOLOGICAL SERVICES)
GS-10F-0342T 707-718-1416 DIXON ,CA s
COLLABORATIVE INC, THE GS-10F-0147V 303-442-3601 BOULDER ,CO s
COLLABORATIVE, INC. THE       GS-00F-0017R (617)338-0018 BOSTON ,MA s/d  
COMMONWEALTH HERITAGE GROUP,INC. GS-00F-261DA 5177883550 DEXTER ,MI s
COMPREHENSIVE ENVIRONMENTAL INC. 47QRAA18D00DM 603-424-0564 MARLBOROUGH ,MA s/w/wo/ew/d
CONCURRENT TECHNOLOGIES CORPORATION GS-00F-0072M 814-269-6576 JOHNSTOWN ,PA o
CONSOLIDATED SAFETY SERVICES INCORPORATED GS-00F-217CA (703) 877-3325 FAIRFAX ,VA o
COPPERHEAD ENVIRONMENTAL CONSULTING, INC 47QRAA18D00CR 8599259012 PAINT LICK ,KY s
COREPROBE INTERNATIONAL, INC. GS-00F-012DA (626)309-9932 SAN GABRIEL ,CA s/d  
CORNERSTONE ENVIRONMENTAL CONSULTING, LLC       47QRAA19D0057 928-522-4148 FLAGSTAFF ,AZ 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 1-801-359-5565 SALT LAKE CITY ,UT s/d
CSA OCEAN SCIENCES INC. GS-10F-0443M 7722193000 STUART ,FL o
CSRA SYSTEMS & SOLUTIONS LLC GS-10F-0135K 571-446-5340 FALLS CHURCH ,VA o
CULTURAL RESOURCE ANALYSTS INC 47QRAA19D0048 859-252-4737 LEXINGTON ,KY s
CULTURAL RESOURCE ANALYSTS INC GS-10F-0259N 859-252-4737 LEXINGTON ,KY s
DADE MOELLER & ASSOCIATES, INC. GS-00F-333CA 509.942.3644 RICHLAND ,WA o
DAVEY TREE EXPERT COMPANY, THE GS-10F-0615N 330-673-9515 KENT ,OH o
DAVID EVANS AND ASSOCIATES, INC.       GS-10F-0216L (503)499-0218 PORTLAND ,OR o  
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
DETROIT DESIGN ENGINEERING LLC       GS-00F-295GA (248)585-0770 TROY ,MI s/d    
DEWBERRY CONSULTANTS LLC GS-00F-280CA (703) 206-0812 FAIRFAX ,VA o
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
DPRA INCORPORATED GS-00F-0030L 785-564-6041 KNOXVILLE ,TN s
DPSTUDIO, LLC 47QRAA19D00C3 (804)402-0446 RICHMOND ,VA s/w/wo/d    
DR J H CARTER III & ASSOCIATES INC GS-10F-0011S (910)695-1043 SOUTHERN PINES ,NC s  
DTECH SERVICES 47QRAA19D0076 817-695-6519 ARLINGTON ,TX s/d
DYNAMIC SOLUTIONS, LLC GS-10F-0527N 8652123331 KNOXVILLE ,TN s/w
E W WELLS GROUP LLC GS-10F-0253W 214-421-2700 ALBUQUERQUE ,NM s/d/8a
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 410-527-2402 HUNT VALLEY ,MD s
EARTH RESOURCES TECHNOLOGY, INC. GS-00F-109CA (301)323-1411 LAUREL ,MD o  
EARTH SMART ENVIRONMENTAL SOLUTIONS, LLC GS-00F-099DA 240-298-5702 WINTER GARDEN ,FL s/dv
EASTERN RESEARCH GROUP, INC. GS-00F-079CA 7816747200 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) 855-0590 BAINBRIDGE ISLAND ,WA s/w/wo/ew/d
ECOANALYSTS INC       GS-10F-0050U 208-882-2588X21 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 716-684-8060 ARLINGTON ,VA o
ECOPLAN ASSOCIATES INC GS-10F-0147T 480-733-6666 X115 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 MANAGEMENT, INC. GS-10F-0129L 5058848300 ALBUQUERQUE ,NM s/v/d/8a
ECOSYSTEM RESEARCH GROUP LLC GS-10F-0288P 406-721-9420 MISSOULA ,MT s/h
ECOSYSTEM SCIENCES GS-00F-277DA 208-383-0226 BOISE ,ID s
ECS FEDERAL, INC. GS-00F-072CA 703 270 1540 FAIRFAX ,VA o
ECS MID-ATLANTIC, LLC 47QRAA19D006M 703-810-1224 CHANTILLY ,VA o
ECW ENVIRONMENTAL GROUP LLC GS-10F-0241L (757)871-8534 HAMPTON ,VA s  
EHS TECHNOLOGIES CORPORATION GS-10F-0211K (856)642-7877 MOORESTOWN ,NJ o  
EHS-INTERNATIONAL, INC. GS-10F-0400S 206-381-1128 SEATTLE ,WA s/d
EL DORADO ENGINEERING, INC.       47QRAA18D00E6 801-966-8288 WEST JORDAN ,UT s
ELVADO ENVIRONMENTAL LLC GS-10F-114BA 865-692-1956 KNOXVILLE ,TN s/w/d/8a
ELYON INTERNATIONAL, INC. GS-00F-203GA (360) 696-5892 VANCOUVER ,WA s/w/wo/ew/v/d
EMMONS & OLIVIER RESOURCES, INC. GS-10F-0155W (651)203-6029 SAINT PAUL ,MN s  
EMR ENVIRONMENTAL, LLC GS-10F-0222R (785) 842-9013 OVERLAND PARK ,KS s/w/wo/d/8a
ENDPOINT SOLUTIONS CORP. GS-10F-133BA 414-858-1204 FRANKLIN ,WI s
ENDYNA, INC.       GS-00F-0017Y 7038488840 MCLEAN ,VA s/w/wo/ew/d
ENGINEERING & ENVIRONMENT, INC. GS-10F-0082L 7574570002 VIRGINIA BEACH ,VA s
ENGINEERING/REMEDIATION RESOURCES GROUP, INC. GS-10F-0294R 925-969-0750 MARTINEZ ,CA s/w/wo/d
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 4102905950 COLUMBIA ,MD s/d
ENVIRONMENT INTERNATIONAL LTD GS-10F-0069L 2065253362 SEATTLE ,WA s/w/wo/d/h
ENVIRONMENTAL BUSINESS PARTNERS, LLC GS-10F-0363T 9042874200 YULEE ,FL s/dv
ENVIRONMENTAL CHEMICAL CORPORATION GS-10F-0091M 650-347-1555 BURLINGAME ,CA s
ENVIRONMENTAL COMPLIANCE CONSULTANTS, INC       GS-10F-0018V 907 644-0428 ANCHORAGE ,AK s/dv/h
ENVIRONMENTAL CONSULTING AND TRAINING SERVICES, INC GS-10F-0355L 8655219898 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 916-241-9290 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 INCENTIVES, LLC GS-00F-193DA 5305412980 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 14155440440 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 EXT. 10 ROCKVILLE ,MD s/w/wo/ew/d
ENVIRONMENTAL MANAGEMENT SUPPORT, INC 47QRAA18D00C7 3015895318 SILVER SPRING ,MD s
ENVIRONMENTAL MONITORING SENSOR INTELLIGENCE CORP. GS-10F-0199X (703)232-7111 RESTON ,VA s/d  
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 5137427248 CINCINNATI ,OH s/d
ENVIRONMENTAL QUALITY MANAGEMENT, INC GS-10F-0293K 5137427248 CINCINNATI ,OH s
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 415-896-5900 SAN FRANCISCO ,CA o
ENVIRONMENTAL SERVICES, INC. (OF FLORIDA) GS-10F-0003X (904)470-2200 JACKSONVILLE ,FL s/w  
ENVIRONMENTAL SYNECTICS, INC GS-10F-043BA 916-561-3180 SACRAMENTO ,CA s/h
ENVIRONMENTAL TECHNICAL SOLUTIONS, LLC 47QRAA18D001Q 303.722.2973 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. GS-00F-0035N 619-702-1700 SAN DIEGO ,CA o
ERM-WEST, INC 47QRAA18D0059 907 264 4454 WALNUT CREEK ,CA o
ERO RESOURCES CORPORATION GS-10F-0302L 303-830-1188 DENVER ,CO s
ESP ASSOCIATES, INC. GS-10F-189BA 336-232-5213 FORT MILL ,SC o
ESS GROUP, INC. GS-10F-0080W 401-330-1260 RIVERSIDE ,RI s
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 , EXT 1 DAVIS ,CA s
FIRST ENVIRONMENT, INC. GS-10F-0178R 9733340003 BOONTON ,NJ s/dv
FOOTHILLS ENVIRONMENTAL, INC. GS-10F-0374S 303-232-2660 LAKEWOOD ,CO s/d
FOURTUNE 4, INC.
(DBA: EAC ENVIRONMENTAL ASSESSMENTS CONSULTING)
GS-10F-181BA 9413788844 SARASOTA ,FL s
FPM GROUP, LTD. GS-00F-104CA 631-737-6200 RONKONKOMA ,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
FUTURENET GROUP, INC. GS-10F-0331R (313)544-7117 DETROIT ,MI o  
G B K PARTNERSHIP, LLC, THE GS-10F-0413M 405-285-5349 OKLAHOMA CITY ,OK s/d/h
G.E.C., INC. 47QRAA19D001J 2256124178 BATON ROUGE ,LA o
GANNETT FLEMING, INC. GS-00F-114CA (703) 277-9505 CAMP HILL ,PA o
GARCIA AND ASSOCIATES GS-10F-0389R 4154585803 SAN ANSELMO ,CA o
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 401-845-3658 FAIRFAX ,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 707-822-8005 ARCATA ,CA s
GEOMORPH INFORMATION SYSTEMS LLC GS-10F-0236X 6197877974 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 505-830-6074 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
GOLDBELT C6, LLC 47QRAA19D00CS (757)550-2121 CHESAPEAKE ,VA s/d/8a    
GP STRATEGIES CORPORATION GS-00F-0039N 443-367-9611 COLUMBIA ,MD o
GRAVITATE LIMITED LIABILITY COMPANY 47QRAA18D004C 3076803637 GRAND PRAIRIE ,TX s/w/wo/ew/d
GRB ENVIRONMENTAL SERVICES INC GS-10F-0284X 212-564-8640 NEW YORK ,NY s/w
GREAT ECOLOGY & ENVIRONMENTS, INC. GS-10F-148AA (212)579-6800 SAN DIEGO ,CA s  
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 (201) 346-1776 LEONIA ,NJ s/w/wo/ew
GREEN STREET ENVIRONMENTAL, LLC 47QRAA18D000N 410-296-8800 BALTIMORE ,MD s
GREEN VEST L.L.C. GS-10F-040CA (561)640-9171 ANNAPOLIS ,MD s  
GREENMAN-PEDERSEN, INC. GS-23F-0032S 518-209-4823 BABYLON ,NY o
GREENSMITH, INC. GS-10F-0056W 847-864-4070 EVANSTON ,IL s
GRYPHON ENVIRONMENTAL, LLC GS-10F-144BA 719-578-3330 COLORADO SPRINGS ,CO s/dv
GS GROUP LLC GS-00F-162GA (616)916-3306 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 512-346-4474 HOUSTON ,TX o
GSI NORTH AMERICA INC. 47QRAA19D002Z 808-349-3178 FLEMINGTON ,NJ s/d/8a
GULF SOUTH RESEARCH CORPORATION 47QRAA19D006W (225)757-8088 BATON ROUGE ,LA s/w/wo/ew/d    
GULF SOUTH RESEARCH CORPORATION GS-10F-0058K 2257578088 BATON ROUGE ,LA s/w/wo/d
H R A INC GS-10F-0045T (702)228-8844 LAS VEGAS ,NV s/w/wo  
HAMER ENVIRONMENTAL L.P. GS-10F-087AA 360-899-5156 MOUNT VERNON ,WA s
HARRIS ENVIRONMENTAL GROUP, INC. GS-10F-0457R 5206287648 TUCSON ,AZ s/w/wo/ew/d/8a/h
HART CROWSER, INC. GS-10F-0308K 206-324-9530 SEATTLE ,WA o
HARTGEN ARCHEOLOGICAL ASSOCIATES INC GS-10F-0424Y 5182830534 RENSSELAER ,NY s
HAWAII INTERNATIONAL ENVIRONMENTAL SERVICES, INC. GS-10F-0132L 808-263-4787 KAILUA ,HI s/w/wo/ew
HAWKS ALOFT INC GS-10F-0191T (505)828-9455 ALBUQUERQUE ,NM o  
HAZAIR, INC. GS-10F-114CA 702-941-1813 HENDERSON ,NV s/dv/d/8a
HAZTRAIN, INC. GS-10F-0143K 3019320994 WALDORF ,MD s/w
HDR ENGINEERING, INC. GS-00F-152CA 303-754-4252 OMAHA ,NE o
HDR ENVIRONMENTAL, OPERATIONS AND CONSTRUCTION, INC. GS-10F-0073L 303-754-4252 ENGLEWOOD ,CO o
HEALTHY BUILDINGS INTERNATIONAL (VA), INC. GS-10F-0125K 703-323-3300 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)478-8014 AUSTIN ,TX s/w/wo  
HISTORICAL RESEARCH ASSOCIATES, INC. GS-10F-0194S (206)343-0226 MISSOULA ,MT s
HITACHI CONSULTING CORPORATION       GS-00F-0001X 804-761-5676 DALLAS ,TX o
HORSLEY WITTEN GROUP, INC. GS-10F-0304T 508-833-6600 SANDWICH ,MA s
HOWER CONSULTING GROUP, INC. GS-10F-0023V (800)683-5145 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 7034785186 RESTON ,VA s
HYDROGEOLOGIC, INC. GS-10F-0085K 7034785186 RESTON ,VA s
HYDROS CONSULTING INC. GS-10F-220BA 303-284-1841 BOULDER ,CO s
HYDROSOLUTIONS INC GS-10F-0172X 4066559555X100 HELENA ,MT s/dv
HZW ENVIRONMENTAL CONSULTANTS, LLC       47QRAA19D00C6 (330)208-2717 MENTOR ,OH s/w/wo    
I. H. I. GS-10F-0446R (763)489-3150 MIDVALE ,UT s  
I.M. SYSTEMS GROUP, INC. GS-00F-311CA 240-833-1889 ROCKVILLE ,MD o
IAP WORLD SERVICES INC GS-00F-0022L 321-784-7285 CAPE CANAVERAL ,FL o
ICF INCORPORATED, L.L.C. GS-00F-010CA 703-934-3632 FAIRFAX ,VA o
ICF JONES & STOKES, INC GS-10F-0087K 7039343000 FAIRFAX ,VA o
INDUSTRIAL ECONOMICS, INCORPORATED GS-10F-0061N 617-354-0074 CAMBRIDGE ,MA o
INDUSTRIAL HYGIENE RESOURCES, LTD GS-10F-0176R 2083238287 BOISE ,ID s
INTEGRA GOVERNMENT SERVICES INTERNATIONAL LLC GS-10F-083CA 2028984110 WASHINGTON ,DC s/dv
INTEGRATED SCIENCE SOLUTIONS, INC. GS-10F-0077X 9259791535 WALNUT CREEK ,CA s/w/wo
INTEGRATED STATISTICS INCORPORATED GS-10F-0395N 5085408560 WOODS HOLE ,MA s/w/wo
J W ASSOCIATES INC GS-10F-0108S 970-406-0085 BRECKENRIDGE ,CO s/w/wo/d
J.G. MANAGEMENT SYSTEMS, INC. GS-00F-0014Y 970-254-1354 GRAND JUNCTION ,CO s/d/8a
JACOBS ENGINEERING GROUP INC. GS-00F-0025M (314)335-4144 ARLINGTON ,VA o  
JARDON & HOWARD TECHNOLOGIES, INCORPORATED GS-00F-0059M 407-381-7797 ORLANDO ,FL o
JE FULLER/HYDROLOGY AND GEOMORPHOLOGY, INC. GS-00F-079GA 480-222-5707 TEMPE ,AZ s
JENKINS ENVIRONMENTAL CONSULTING, LLC GS-00F-058DA (866)839-6548 AUSTIN ,TX s  
JENSEN HUGHES, INC. GS-00F-006CA 410-737-8677 BALTIMORE ,MD o
JOHNSON COMPANY, INC. THE GS-10F-0481P 8022294600 MONTPELIER ,VT s
JOHNSON, MIRMIRAN & THOMPSON, INC. GS-00F-194CA 410-329-3100 HUNT VALLEY ,MD o
KANE ENVIRONMENTAL, INC. GS-10F-0061W 2066910476 SEATTLE ,WA s
KELLER-BLIESNER ENGINEERING, LLC       47QRAA18D004Q 435-753-5651 LOGAN ,UT s
KENIFIC GROUP INC, THE 47QRAA19D00C7 571-363-4002 FAIRFAX ,VA s/d
KERES CONSULTING, INC. GS-00F-154CA 5058372104 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
KLEINFELDER, INC. GS-10F-0029L 619-831-4634 RANCHO CORDOVA ,CA o
KLEINSCHMIDT ASSOCIATES 47QRAA18D005P 207-487-3328 PITTSFIELD ,ME o
KMPOWER CONSULTING LLC GS-10F-102AA 303-710-0876 GREELEY ,CO s/w/wo
KWW CONSULTING, INC. GS-10F-0457M (269)993-4607 MILWAUKEE ,WI s  
L S A ASSOCIATES, INC. 47QRAA18D009Y 949-553-0666 IRVINE ,CA o
LARSON DESIGN GROUP, INC. 47QRAA19D00CU (610)269-7576 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
LEIDOS INNOVATIONS CORPORATION GS-00F-242CA 301-452-5781 GAITHERSBURG ,MD o
LEIDOS, INC. GS-00F-022CA (571) 526-7085 RESTON ,VA o
LEW CORPORATION 47QRAA18D002A 336-887-1328 MINE HILL ,NJ s
LG2 ENVIRONMENTAL SOLUTIONS INC       GS-10F-0375N 904-288-8631 JACKSONVILLE ,FL s/w/wo/ew/d/8a
LIMNO-TECH, INC. GS-10F-150BA 7348213159 ANN ARBOR ,MI o
LINDAHL REED, INC. 47QRAA18D00GR 541-728-1102 REDMOND ,OR s/w/wo/ew
LINEBACH FUNKHOUSER INC 47QRAA18D0035 502-895-5009 LOUISVILLE ,KY s
LINK TECHNOLOGIES INC GS-00F-216CA 301-983-6878 GERMANTOWN ,MD s/w/wo
LJB INC GS-00F-049CA (937) 259-5146 MIAMISBURG ,OH s
LOGAN SIMPSON DESIGN INC. GS-10F-0063P 480-967-1343 TEMPE ,AZ o
LOGISTICS MANAGEMENT INSTITUTE       GS-00F-0026M 703-917-7176 MC LEAN ,VA o
LOGISTICS MANAGEMENT INSTITUTE       GS-00F-041GA 703-917-7176 MC LEAN ,VA o
LOS ALAMOS TECHNICAL ASSOCIATES, INC. GS-10F-0017V (505)880-3495 ALBUQUERQUE ,NM s  
LOUIS BERGER GROUP, INC., THE 47QRAA18D002R 202-303-2613 WASHINGTON ,DC o
LOUIS BERGER GROUP, INC., THE GS-00F-0004L 202-303-2613 WASHINGTON ,DC o
LOW IMPACT DEVELOPMENT CENTER (LID), INC.       GS-10F-0084N 3019825559 BELTSVILLE ,MD o
LPES, INC GS-10F-204BA 7573570730 SMITHFIELD ,VA s
LRS FEDERAL LLC GS-10F-0360T 4105443570 PASADENA ,MD s/dv
LYNKER TECHNOLOGIES LLC GS-00F-125CA 703-431-5855 BOULDER ,CO s/d/h
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 X306 BEDFORD ,MA s/dv
MANAGEMENT & ENGINEERING SVCS LLC GS-10F-0159L (303)684-0215 LONGMONT ,CO s  
MANTECH SRS TECHNOLOGIES, INC. GS-10F-0054R 703-218-6440 HERNDON ,VA o
MARINE ACOUSTICS, INC. GS-10F-0164N 401-847-7508 MIDDLETOWN ,RI s
MARSH & ASSOCIATES LLC       GS-10F-0085V 4804560801 TEMPE ,AZ s
MARSTEL-DAY, LLC GS-00F-070CA 7038395512 FREDERICKSBURG ,VA s/w/wo/h
MASON BRUCE & GIRARD INC GS-10F-0295M 503-224-3445 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 (301) 838-2730 ROCKVILLE ,MD s/d
MC CONSULTING, INC GS-10F-0226M 6308870922 WESTMONT ,IL s/d
MCG GEOTECHNICAL ENGINEERING I GS-10F-0142X (303)589-8486 MORRISON ,CO s/w/wo/d  
MDB, INC. GS-00F-0001S 202-331-0060 WASHINGTON ,DC s
MEAD AND HUNT, INC. GS-00F-230DA 888-364-7272 MIDDLETON ,WI o
MECA CONSULTING, INC. GS-10F-0229U (925) 808-6700 OAKLAND ,CA s
MECX, INC. GS-10F-0328R 713-585-7000 HOUSTON ,TX s/dv
MERKEL & ASSOCIATES, INC. GS-10F-0060T (858)560-5465 SAN DIEGO ,CA s/w  
MICHAEL BAKER INTERNATIONAL, INC. GS-00F-0032M 703-483-0029 ALEXANDRIA ,VA o
MID ATLANTIC SOLID WASTE CONSULTANTS, LLC GS-00F-275GA 4072841980 ORLANDO ,FL s
MIDWEST ASSISTANCE PROGRAM, INC. GS-10F-0025T 660-562-2575 MARYVILLE ,MO o
MSE GROUP, LLC GS-10F-0469Y 813-363-0862 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 (908)295-0555 ABINGDON ,VA s
NATIVE ENERGY & TECHNOLOGY, INC. GS-00F-248CA 210-231-6060 SAN ANTONIO ,TX s/d
NATIVE-X, INC GS-10F-0174U 7755600808 RENO ,NV s/v
NATURAL RESOURCE INNOVATIONS GMBH 47QRAA19D002P (622)510-694 HEIDELBERG ,
GERMANY
s    
NATURAL SYSTEMS ANALYSTS, INC. GS-10F-0211W 4077183880 DUBOIS ,WY s/d/8a
NATURES IMAGE, INC. GS-10F-045BA 9496804400 LAKE FOREST ,CA s/w/wo
NAVARRO RESEARCH AND ENGINEERING, INC. GS-00F-0092N 8652209650 OAK RIDGE ,TN s/w/wo/d
NELSON ENGINEERING CO. GS-00F-324CA 3214491128 MERRITT ISLAND ,FL s
NEVADA SYSTEM OF HIGHER EDUCATION 47QRAA20D000B (702)862-5593 RENO ,NV o    
NEW SOUTH ASSOCIATES, INC. GS-10F-0230N 770-498-4155 STONE MOUNTAIN ,GA s/w/wo/ew
NEXGEN TECHNOLOGIES, INC. GS-10F-0270W 720.377.1800 WESTMINSTER ,CO s/d
NICHOLS CONSULTING ENGINEERS, CHTD. 47QRAA18D008A 7753294955 RENO ,NV s
NOBIS ENGINEERING, INC. GS-10F-026CA (603)224-4182 CONCORD ,NH 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 949-467-9100 IRVINE ,CA s/d/8a
NORMANDEAU ASSOCIATES INC GS-10F-0319M 603-637-1168 BEDFORD ,NH o
NORTECH, INC. GS-10F-0150R (907) 452-5688 FAIRBANKS ,AK s
NORTH WIND RESOURCE CONSULTING, LLC GS-10F-111BA 208-419-4152 IDAHO FALLS ,ID s/d/8a
NORTH WIND, INC.       GS-10F-0247L (208)528-8718 IDAHO FALLS ,ID s/d  
NORTHLAND RESEARCH, INC GS-10F-0070W 480-894-0020 FLAGSTAFF ,AZ s
NORTHWEST MANAGEMENT INC GS-10F-0075R (208)883-4488 MOSCOW ,ID s  
NUKA RESEARCH AND PLANNING GROUP, LLC GS-10F-164AA (508) 746-1047 SELDOVIA ,AK s/h
NUTRIEN AG SOLUTIONS, INC. GS-10F-0066W (207) 944-6200 LOVELAND ,CO o
NUTTER & ASSOCIATES, INC. 47QRAA19D009B (706)354-7925 ATHENS ,GA s/h    
O'BRIEN & GERE ENGINEERS, INC. GS-10F-0196K 4102099408 SYRACUSE ,NY s
OAK RIDGE ASSOCIATED UNIVERSITIES, INCORPORATED GS-00F-195CA 865-576-7618 OAK RIDGE ,TN o
OCCU-TEC, INCORPORATED GS-10F-0091T 8162315580 KANSAS CITY ,MO s
OCEAN ASSOCIATES, INCORPORATED GS-10F-0567P 703-388-9548 ARLINGTON ,VA o
OHIO VALLEY ARCHAEOLOGY, INC. GS-10F-172BA (614) 436-6926 COLUMBUS ,OH s/w/wo/d
ONEIDA TOTAL INTEGRATED ENTERPRISES, LLC GS-00F-0006L 4142574200 MILWAUKEE ,WI s/d/8a
OPES, INC GS-10F-185AA (405)360-2911 NORMAN ,OK s/h
ORGANIZATIONAL STRATEGIES, LLC GS-00F-145GA 703-554-1650 TYSONS ,VA o
OSAGE OF VIRGINIA, INC. GS-00F-264GA 757-426-6571 MANTEO ,NC s/w/wo/d
OTAK, INC. GS-10F-0401X 503-287-6825 PORTLAND ,OR o
OTIS BAY, INC. GS-10F-0331Y (775)345-9960 VERDI ,NV s  
OTTERY GROUP, INC., THE GS-10F-0061X 301-946-0912 KENSINGTON ,MD s
PACE ENGINEERS INC GS-10F-023AA (425)827-2014 KIRKLAND ,WA s  
PACIFIC WATERSHED ASSOCIATES INC GS-10F-0244V (707) 839-5130 MCKINLEYVILLE ,CA s
PACIFIC WESTERN TECHNOLOGIES, LTD. GS-00F-0002M 303-274-5400 EXT 104 WHEAT RIDGE ,CO s/w/d
PALEOWEST, L.L.C.       GS-10F-0116V 6022617253 PHOENIX ,AZ s
PANAMERICAN CONSULTANTS, INC. GS-10F-0196P 2052488767 TUSCALOOSA ,AL s
PARADIGM ENVIRONMENTAL 47QRAA18D003K 7039571908 OAKTON ,VA s
PARAGON PROFESSIONAL SERVICES LLC 47QRAA19D007B 907-334-8311 ANCHORAGE ,AK s/d/8a
PARAMETRIX, INC. GS-10F-0013N 253-501-5155 PUYALLUP ,WA o
PARS ENVIRONMENTAL INC. GS-10F-0094W 609-890-7277 ROBBINSVILLE ,NJ o
PARSONS GOVERNMENT SERVICES INC. 47QRAA19D000A (210) 477-1616 PASADENA ,CA o
PARSONS GOVERNMENT SERVICES INC. GS-00F-0005R 210-477-1616 PASADENA ,CA o
PARTNER ASSESSMENT CORPORATION 47QRAA18D00EE 773-840-5070 TORRANCE ,CA o
PBS ENGINEERING AND ENVIRONMENTAL INC. GS-10F-0170L 3605672105 PORTLAND ,OR o
PC TRASK AND ASSOCIATES INC. 47QRAA19D000H (503)240-3973 PORTLAND ,OR s    
PCCI, INC. 47QRAA18D00HE 703-229-1110 ALEXANDRIA ,VA o
PERIKIN ENTERPRISES, LLC GS-00F-003AA 915-772-2852 ALBUQUERQUE ,NM s/d
PERSPECTA SERVICES & SOLUTIONS INC. GS-00F-296CA 571-521-7776 HERNDON ,VA o
PETERSON, KATHRYN 47QRAA18D008H 909-630-8279 AGUANGA ,CA s/w/wo
PG ENVIRONMENTAL, LLC GS-10F-0210U 7207898033 CHANTILLY ,VA o
PIEDMONT GEOLOGIC, P.C. GS-10F-101CA (919)854-9700 RALEIGH ,NC s  
PIKA INTERNATIONAL, INC. GS-10F-0202U 281-325-6866 STAFFORD ,TX s/d
PINYON ENVIRONMENTAL, INC. GS-10F-0298N 303.980.5200 LAKEWOOD ,CO s/w
PIONEER TECHNICAL SERVICES, INC. GS-10F-050AA 406-497-8057 BUTTE ,MT s
PIONEER TECHNOLOGIES CORP       GS-10F-0176S (360)570-1700 LACEY ,WA s  
PLANNING RESOURCES INC GS-10F-0343Y (630)668-3788 LOMBARD ,IL s/d  
PLEXUS SCIENTIFIC CORPORATION 47QRAA19D00BK 571-527-1214 ALEXANDRIA ,VA s
PLEXUS SCIENTIFIC CORPORATION GS-10F-0035K 571-527-1214 ALEXANDRIA ,VA o
PORTAGE, INC. GS-00F-262CA 2084194152 IDAHO FALLS ,ID s
POTOMAC-HUDSON ENGINEERING, INC. 47QRAA18D0074 3019079078 ROCKVILLE ,MD s
POTOMAC-HUDSON ENGINEERING, INC. GS-10F-0045K 301-907-9078 X3003 ROCKVILLE ,MD s
POTOMACWAVE CONSULTING, INC. GS-00F-0007X 703-997-6066 ALEXANDRIA ,VA s/w/wo/ew
PRESTIGE ENVIRONMENTAL INC GS-10F-0166T 9087579700 SOMERSET ,NJ s
PROFESSIONAL ENVIRONMENTAL ENGINEERS, INC. GS-10F-200BA 314-531-0060 SAINT LOUIS ,MO s/w
PROFESSIONAL PROJECT SERVICES, INC. GS-00F-112CA 865-220-4377 OAK RIDGE ,TN o
PROJECT ENGINEERING CONSULTANTS INC. 47QRAA18D00FF 801-858-3268 WEST JORDAN ,UT s/d
PROJECT ENHANCEMENT CORPORATION       GS-00F-0004T 240-686-3059 GERMANTOWN ,MD s
PROJECT TIME & COST, LLC 47QRAA19D003A 770 200-0192 ATLANTA ,GA s
PROSPECTIVE TECHNOLOGY, INC. GS-10F-0350S (410)381-0035 MARRIOTTSVILLE ,MD s/d  
PRUDENT TECHNOLOGIES, INC. GS-10F-0176Y 816-363-3703 KANSAS CITY ,MO s/d
PUBLIC ARCHAEOLOGY LABORATORY, INCORPORATED, THE GS-10F-0032S 401-728-8780 PAWTUCKET ,RI o
PURE AIR CONTROL SERVICES, INC. GS-10F-0488R 7275724550 CLEARWATER ,FL s
PYRAMID ENVIRONMENTAL AND ENGINEERING, P.C. GS-10F-0403N 336-335-3174 GREENSBORO ,NC s
QUANTUM ENVIRONMENTAL & ENGINEERING SERVICES, LLC GS-10F-0405Y (865)689-1395 KNOXVILLE ,TN s  
QUANTUM SPATIAL, INC. GS-10F-0423R 301-262-9400 SAINT PETERSBURG ,FL o
QUATERNARY RESOURCE INVESTIGATIONS, L.L.C. GS-10F-105BA 225-329-4212 BATON ROUGE ,LA s/w/wo/ew/d
R. CHRISTOPHER GOODWIN & ASSOCIATES, INC. GS-10F-0068L 301-694-0428 NEW ORLEANS ,LA s
R2 RESOURCE CONSULTANTS, INC GS-00F-300DA 4255561288 REDMOND ,WA s
R2T, INC. GS-00F-129GA 7705697038 ATLANTA ,GA s/w/wo/ew/d
RAVEN ENVIRONMENTAL SERVICES, INC. GS-00F-264DA 9362910946 HUNTSVILLE ,TX s
RE/SPEC INC. GS-00F-0078N 6053946400 RAPID CITY ,SD o
RECON ENVIRONMENTAL GS-10F-0339M 619-308-9333 EXT 181 SAN DIEGO ,CA s
RED J ENVIRONMENTAL CORPORATION GS-10F-0246T (928) 288-3239 JOSEPH CITY ,AZ s/h
REDHORSE CORPORATION       GS-00F-0013Y 619-241-4609 SAN DIEGO ,CA s/dv/d/8a
RESEARCH MANAGEMENT CONSULTANTS INC. GS-10F-0071M 3032770066 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 919-541-6634 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 s
RESOURCE RECYCLING SYSTEMS, INCORPORATED GS-10F-038CA 734-996-1361 ANN ARBOR ,MI s/d
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
RMC CONSULTANTS, INC. GS-10F-0482M 3039804101 WHEAT RIDGE ,CO s/d
RMEC ENVIRONMENTAL INC GS-10F-0147P (801)467-3661 SALT LAKE CITY ,UT s  
ROBERT AND COMPANY GS-00F-210GA (404)577-4000 ATLANTA ,GA s/dv  
ROBINSON AND NOBLE, INC. GS-10F-010CA 253.475.7711 TACOMA ,WA s
ROMEM AQUA SYSTEMS COMPANY, INC GS-10F-0142K 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 4065346039 BILLINGS ,MT s/w/wo
RURAL COMMUNITY ASSISTANCE CORPORATION GS-10F-0255X 916-447-9832 WEST SACRAMENTO ,CA o
RUTH VILLALOBOS & ASSOCIATES, INC. GS-00F-432GA 9092451140 ALTA LOMA ,CA s/w/wo/d
S C & A, INC. GS-10F-0093K 703-893-6600 X213 ARLINGTON ,VA s
S P CRAMER & ASSOCIATES INC 47QRAA19D0045 503-850-9024 PORTLAND ,OR s
S.S. PAPADOPULOS & ASSOCIATES, INC. GS-10F-0462M 3017188900 BETHESDA ,MD s
S2O DESIGN AND ENGINEERING 47QRAA19D006R 303-819-3985 LYONS ,CO s/d
SCARAB WASTE SOLUTIONS, LLC GS-10F-0144K 402-708-8040 BRYAN ,TX s/dv/d
SECURIFENSE, INC.       GS-00F-186GA 719-310-0760 COLORADO SPRINGS ,CO 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 (801)447-5977 FARMINGTON ,UT s    
SIGNATURE SCIENCE, LLC GS-00F-105CA (512) 533-2030 AUSTIN ,TX o
SKEO SOLUTIONS , INC. GS-10F-0309N 434-226-4284 CHARLOTTESVILLE ,VA s
SOIL AND LAND USE TECHNOLOGY, INC.
(DBA: TLB ASSOCIATES)
GS-10F-0072T 443-896-6159 WASHINGTON ,DC s
SOL ENGINEERING SERVICE LLC GS-00F-223GA 601-961-1415 JACKSON ,MS s/d/h
SOL SOLUTIONS, LLC 47QRAA18D00AF 210-325-1163 SCOTTSDALE ,AZ s/v/d/8a
SOLUTIENT TECHNOLOGIES, LLC 47QRAA18D008Q (330) 497-5905 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
SONOMA TECHNOLOGY, INC. GS-10F-0181K 707-665-9900 PETALUMA ,CA s
SOURCE ENVIRONMENTAL, INC.
(DBA: AET ENVIRONMENTAL)
GS-10F-0361L 303-333-8521 DENVER ,CO s/w/wo/ew
SOUTHEASTERN ARCHAEOLOGICAL RESEARCH INC GS-10F-0255Y 352-333-0049 ORLANDO ,FL s/w/wo
SOUTHWEST HAZARD CONTROL, INC. GS-10F-115BA 520-622-3607 TUCSON ,AZ s/w/d
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
SPECPRO, INC. GS-00F-0026Y (210)494-4282 SAN ANTONIO ,TX s/h  
SPECTRUM SERVICES GROUP, INC. GS-10F-237AA 916-760-7913 SACRAMENTO ,CA s/d/8a/h
SRA INTERNATIONAL, INC. GS-00F-256CA 571.446.4017 CHANTILLY ,VA o
SRC, INC. 47QRAA19D005N 315-452-8594 NORTH SYRACUSE ,NY o
SRC, INC. GS-00F-0019L 315-452-8594 NORTH SYRACUSE ,NY o
STANTEC CONSULTING SERVICES INC. 47QRAA19D000Q 916-418-8338 BROOMFIELD ,CO o
STANTEC CONSULTING SERVICES INC. GS-00F-0040L 615-238-2733 BROOMFIELD ,CO o
STANTEC CONSULTING SERVICES INC. GS-10F-0008S (530)222-5347 REDDING ,CA o  
STATISTICAL RESEARCH, INC. GS-10F-0396P 5207214309 TUCSON ,AZ s/w/wo/ew
STEARNS, CONRAD AND SCHMIDT CONSULTING ENGINEERS, INC.
(DBA: SCS ENGINEERS)
GS-10F-0371K 703-471-6150 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
STRAUGHAN ENVIRONMENTAL, INC. GS-10F-014CA 4435392534 COLUMBIA ,MD s/w/wo/ew/d
SUNDANCE CONSULTING, INC.       47QRAA18D00AS 208-233-2929 POCATELLO ,ID s/w/wo/d
SUSTAINABLE RESOURCES GROUP INTN'L, INC. GS-10F-0373L 8083560552 KAILUA ,HI s/w/wo
SUSTAINMENT AND RESTORATION SERVICES, LLC 47QRAA18D00FN 414-257-4200 MILWAUKEE ,WI s/d/8a
SWCA, INCORPORATED 47QRAA19D004C (602) 274-3831 PHOENIX ,AZ o
SWCA, INCORPORATED GS-10F-0209L (602) 274-3831 PHOENIX ,AZ o
SYSTEMATIC MANAGEMENT SERVICES, INC. GS-00F-241CA 3013530072 FREDERICK ,MD s
T3W BUSINESS SOLUTIONS, INC. 47QRAA19D000N 6192980888 SAN DIEGO ,CA s/w/wo
TEAM INTEGRATED ENGINEERING, INC. GS-00F-158CA 210-341-4316 SAN ANTONIO ,TX o
TECHLAW, INC. 47QSWA18D008B 7038183233 CHANTILLY ,VA s
TECHNICAL RESOURCES GROUP INC GS-10F-0300W 208-528-8895 IDAHO FALLS ,ID s/w
TECHNICAL RESOURCES INC GS-00F-274CA 301-897-7408 BETHESDA ,MD o
TECTONIC ENGINEERING & SURVEYING CONSULTANTS PC GS-00F-015BA 1-845-534-5959 MOUNTAINVILLE ,NY o
TEHAMA, LLC       47QRAA18D00A4 8166797510 KANSAS CITY ,MO s/d/8a
TELEDYNE BROWN ENGINEERING, INC. GS-00F-155CA 256-726-1211 HUNTSVILLE ,AL o
TELLEVATE, LLC GS-00F-245GA 404-538-5494 DECATUR ,GA s
TERRA SOLUTIONS & SERVICES, INC. 47QRAA19D00AV 925-250-5603 HERLONG ,CA s/d/8a
TERRACON CONSULTANTS, INC. GS-10F-0256K 719-597-2116 COLORADO SPRINGS ,CO o
TERRANEAR PMC LLC GS-00F-322CA (832)265-4900 EXTON ,PA o  
TERRANEXT, LLC GS-10F-0320L 303-399-6145 DENVER ,CO s/w/wo/ew/d
TERWILLIGER CONSULTING, INC. GS-10F-0220L (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 2089918264 AUSTIN ,TX s/w/wo/d
TIDEWATER, INC. GS-10F-0260R 5718305606 ELKRIDGE ,MD o
TIERRA RIGHT OF WAY SERVICES, LTD. GS-10F-0038T 520-319-2106 TUCSON ,AZ s/w/wo
TLI SOLUTIONS, INC. GS-10F-0343S 7038183233 CHANTILLY ,VA o
TNT ENVIRONMENTAL, INC. 47QRAA18D00CD 703-466-5123 CHANTILLY ,VA s
TOEROEK ASSOCIATES, INC. GS-00F-055CA 720-898-4114 LAKEWOOD ,CO s/w/wo
TOTAL ENVIRONMENTAL CONCEPTS, INC. GS-10F-0270V 3015480382 GAITHERSBURG ,MD s
TRANSCON ENVIRONMENTAL INC.       GS-10F-0192M 4808070095 MESA ,AZ s/d
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
UNITED ANALYTICAL SERVICES, INC. 47QRAA17D0002 (630)691-8271 DOWNERS GROVE ,IL s/w/wo/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
URS GROUP, INC. GS-00F-188CA 210-253-7531 SAN ANTONIO ,TX o
USFIN DEVELOPMENT, LLC GS-10F-0310X 419-351-8703 SOUTHERN SHORES ,NC s/dv/d/h
VANASSE HANGEN BRUSTLIN INC GS-00F-116CA 757-220-0500 WILLIAMSBURG ,VA o
VERNADERO GROUP INCORPORATED GS-10F-0033T 4803151000 PHOENIX ,AZ s/v
VERSAR, INC. 47QRAA18D00F7 (703)642-6733 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
VM3 ENVIRONMENTAL, INC. GS-00F-190DA 760-273-9728 CARLSBAD ,CA s
WATER & AIR RESEARCH, INC. GS-10F-0358N 352-372-1500 GAINESVILLE ,FL s
WATER, CIVIL, AND ENVIRONMENTAL INCORPORATED GS-00F-386GA (208) 319-9744 BOISE ,ID s/w/wo/ew/d/8a
WCP INC. GS-10F-0127U (808)596-4688 AIEA ,HI s/h  
WENCK ASSOCIATES, INC. GS-10F-0220W 678-987-5845 MAPLE PLAIN ,MN s
WEST KERN ENVIRONMENTAL CONSULTING, LLC GS-00F-408GA 6613198713 BAKERSFIELD ,CA s/w/wo/ew/d/8a
WESTECH ENVIRONMENTAL SERVICES INC GS-00F-436GA 406-442-0950 HELENA ,MT s
WESTERN ECOSYSTEMS TECHNOLOGY, INC.       GS-10F-072BA 3076341756 CHEYENNE ,WY o
WESTMARK GROUP, INC., THE GS-10F-0215X (702)839-2960 EAGLE ,ID s/v/d/8a  
WESTON SOLUTIONS, INC. 47QRAA19D00BT (703)969-7418 ALBUQUERQUE ,NM o    
WETLAND STUDIES AND SOLUTIONS, INC. GS-10F-0273W 703-679-5609 GAINESVILLE ,VA o
WHITE SHIELD, INC. GS-10F-0357U 509-547-0100 PASCO ,WA s/d
WIGHTMAN & ASSOCIATES, LLC GS-00F-001GA 7578978751 CLERMONT ,FL s/w/wo/ew
WILDLIFE SPECIALISTS, LLC GS-10F-231AA 570-376-2255 WELLSBORO ,PA s
WINDJAMMER ENVIRONMENTAL LLC GS-00F-180GA 3143246042 OXON HILL ,MD s/d/8a
WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. GS-00F-314CA 610-877-6021 BLUE BELL ,PA o
WOODARD & CURRAN, INC. GS-10F-0086M 7812510200 PORTLAND ,ME o
WOODS CANYON ARCHAEOLOGICAL CONSULTANTS INC GS-10F-0446Y 970-564-9640 CORTEZ ,CO s
WOOLPERT, INC. GS-00F-0038N 937-531-1309 DAYTON ,OH o
WSP USA INC. 47QRAA19D003Q 217-649-8754 NEW YORK ,NY o
XCEL ENGINEERING, INC. GS-10F-0211P 8657668542 OAK RIDGE ,TN s/dv
YAHSGS LLC GS-10F-0279L 5095397147 SPOKANE ,WA s/w/wo/h
ZEPHYR ENVIRONMENTAL CORP GS-00F-008GA 410-312-7920 AUSTIN ,TX s
ZIA ENGINEERING & ENVIRONMENTAL CONSULTANTS, L.L.C. GS-10F-0391N 575-680-2337 LAS CRUCES ,NM s/d