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Subcontracting in NAICS 541620: Environmental Consulting Services

Large federal prime contractors must adopt a small-business subcontracting plan on contracts above $900,000 ($2 million for construction) under FAR 19.702, with goals for small, women-owned, HUBZone, veteran-owned and service-disabled veteran-owned businesses. SBA's directory lists 43 primes with such plans on 211 contracts in NAICS 541620 (FY2023 and FY2024), 23 of them still active, with $752,421,235 in total contract value. These are the companies to approach about subcontracting work in this industry.

open 541620 set-asides · 541620 contracts expiring · 541620 size standard · how to find teaming partners

Open subcontracting opportunities (SBA SubNet)

OpportunityPrime / companyNAICSPlaceCloses
Alvarado Trunk Sewer & Water Main Relocations ↗
TRADES REQUESTED, BUT NOT LIMITED TO, THE FOLLOWING WORK ITEMS: 237110, 237310, 238110, 541620, 561730
S.C. Valley Engineering, Inc.237110, 237310, 238110, 541620, 561730CaliforniaOct 26, 2026

Contact details are on each SBA SubNet listing. Ask questions to the listed contact, not SBA.

Prime contractors with subcontracting plans

Sorted by the value of active contracts. Look up each prime's small-business or supplier diversity page and register in its supplier portal.

Prime contractorLocationContracts (active)Contract valueMain agenciesLatest end
The Cadmus Group LLCWaltham, Massachusetts15 (1)$138,163,407Agency for International Development; Environmental Protection AgencyAug 20, 2028
Eastern Research Group IncConcord, Massachusetts35 (6)$129,965,708Environmental Protection Agency; Bureau of Land Management; Bureau of Ocean Energy ManagementDec 31, 2029
Weston Solutions Inc
Parent: Weston Solutions Holdings Inc
West Chester, Pennsylvania14 (2)$35,606,891Environmental Protection AgencyAug 7, 2028
Stantec GS Inc.
Parent: Cardno GS Inc.
Charlottesville, Virginia2 (2)$6,711,359U.S. Coast Guard; Federal Acquisition ServiceSep 26, 2028
Blue World Research Institute Inc.Cocoa, Florida2 (2)$3,695,013Bureau of Ocean Energy ManagementSep 3, 2027
Icf Incorporated, L.L.C.
Parent: Icf International Inc.
Fairfax, Virginia17 (1)$82,898,275Environmental Protection AgencyJan 24, 2029
General Dynamics Information Technology, Inc.
Parent: General Dynamics Information Technology Inc.
Falls Church, Virginia16 (1)$72,341,623Environmental Protection AgencyApr 30, 2027
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Pittsburgh, Pennsylvania11 (1)$20,506,812National Aeronautics and Space AdministrationSep 22, 2027
Broadbent & Associates, Inc.
Parent: Broadbent & Associates Inc.
Henderson, Nevada1 (1)$2,269,384Dept of the ArmyJun 30, 2028
HDR Environmental, Operations and Construction, Inc.
Parent: HDR Inc.
Englewood, Colorado2 (1)$3,775,454Dept of the ArmyApr 30, 2027
Colorado State UniversityFort Collins, Colorado1 (1)$2,108,593Bureau of Land ManagementSep 30, 2029
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Oakland, California11 (1)$20,243,066Environmental Protection AgencyApr 8, 2028
Hydrogeologic, Inc.
Parent: Hydrogeologic Inc.
Reston, Virginia2 (1)$3,426,779National Aeronautics and Space AdministrationDec 31, 2026
Industrial Economics, Incorporated
Parent: Industrial Economics Inc
Cambridge, Massachusetts2 (1)$1,836,924Bureau of Ocean Energy Management; Environmental Protection AgencySep 19, 2027
Aptim Federal Services, LLC
Parent: Aptim Federal Services LLC
Baton Rouge, Louisiana5 (1)$8,276,827Bureau of Ocean Energy ManagementNov 30, 2027
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Denver, Colorado7 (0)$25,782,754Environmental Protection AgencySep 21, 2025
Research Triangle Institute
Parent: Research Triangle Institute Inc
Research Triangle Park, North Carolina7 (0)$24,256,504Environmental Protection AgencyFeb 15, 2025
WSP USA Solutions Inc.
Parent: WSP USA Solutions Inc
Washington, District of Columbia3 (0)$24,035,976Federal Energy Regulatory Commission; U.S. Coast Guard; Public Buildings ServiceSep 28, 2025
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Chicago, Illinois8 (0)$21,233,441Environmental Protection AgencyJun 30, 2025
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Pasadena, California3 (0)$20,424,277Dept of the Army; Environmental Protection Agency; Department of EnergyMay 1, 2025
Abt Associates Inc.Rockville, Maryland7 (0)$19,102,311Environmental Protection AgencyMar 28, 2025
Signature Science, LLC
Parent: Southwest Research Institute Inc
Austin, Texas1 (0)$14,140,668Federal Acquisition ServiceMar 31, 2024
WSP USA Environment & Infrastructure Inc.Blue Bell, Pennsylvania3 (0)$9,352,425Environmental Protection AgencyJul 8, 2025
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Duluth, Georgia7 (0)$8,321,005Environmental Protection AgencyJan 14, 2025
Aecom Technical Services, Inc.
Parent: Aecom Technical Services Inc.
Los Angeles, California3 (0)$7,446,369National Aeronautics and Space AdministrationJun 30, 2026
Consolidated Safety Services IncorporatedFairfax, Virginia1 (0)$6,296,891National Oceanic and Atmospheric AdministrationFeb 28, 2025
Sanborn Map Company, Inc., the
Parent: Rothermere Continuation Limited
Colorado Springs, Colorado2 (0)$5,688,103Forest ServiceSep 14, 2025
Science Applications International CorporationReston, Virginia1 (0)$4,015,146Environmental Protection AgencyJun 9, 2025
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Kansas City, Missouri3 (0)$3,717,304Environmental Protection AgencyAug 25, 2025
CH2M Hill, Inc.
Parent: CH2M Hill Inc.
Greenwood Village, Colorado2 (0)$3,488,611Dept of the Air ForceApr 23, 2024
Weston-Techlaw JV, LLC
Parent: Weston-Techlaw JV LLC
Chantilly, Virginia2 (0)$3,438,990Environmental Protection AgencyAug 14, 2025
Boston Government Services, LLC
Parent: Boston Government Services LLC
Oak Ridge, Tennessee2 (0)$2,907,305Department of EnergyJan 31, 2025
Stantec Consulting Services Inc.Denver, Colorado1 (0)$2,800,000Bureau of ReclamationJun 30, 2025
Tetra Tech, Inc.
Parent: Tetra Tech Inc.
Fairfax, Virginia2 (0)$2,471,198Environmental Protection AgencyNov 30, 2024
Leidos, Inc.
Parent: Leidos Inc.
Reston, Virginia1 (0)$2,191,606Dept of the ArmyAug 15, 2026
Battelle Memorial Institute
Parent: Battelle Memorial Institute Inc
Columbus, Ohio2 (0)$2,090,657Environmental Protection AgencyAug 13, 2024
Jacobs Geosyntec a Joint VentureCape Canaveral, Florida1 (0)$1,800,131National Aeronautics and Space AdministrationJun 30, 2026
1SPATIAL Inc.
Parent: 1SPATIAL Inc
Vienna, Virginia1 (0)$1,335,075Forest ServiceSep 30, 2025
Trinity Consultants Inc
Parent: Gryphon Investors Inc.
Dallas, Texas1 (0)$968,393Public Buildings ServiceJun 13, 2025
Swca, Incorporated
Parent: Swca Incorporated
Phoenix, Arizona1 (0)$869,702Bureau of Land ManagementJun 30, 2024
Csa Ocean Sciences Inc.
Parent: Continental Shelf Associates Inc.
Stuart, Florida1 (0)$863,278Bureau of Ocean Energy ManagementApr 30, 2026
Paleowest LLC
Parent: Paleowest L.L.C.
Phoenix, Arizona1 (0)$792,980National Park ServiceMar 31, 2025
Ageiss Inc.Lakewood, Colorado1 (0)$764,020Washington Headquarters Services (WHS)Sep 27, 2025

About this data

Primes: SBA's Directory of Federal Government Prime Contractors with Subcontracting Plans (FY2023 and FY2024 editions, the latest SBA has published), built from FPDS-NG. The agency that entered each record owns the data; questions about a contract go to that agency. "Active" means the listed completion date is today or later. Contract value is the base and all options value. We group contracts by the prime's UEI. Open opportunities: SBA SubNet, checked Oct 18, 2026 and weekly. AwardWatchdog is not affiliated with SBA or any prime listed here.

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