NAICS 541620 · Environmental Consulting Services
69 open opportunities · 8,228 FY2025 awards · $1.85B obligated
Top contractors in this NAICS
- Eastern Research Group INC$103.4M
- Weston Solutions INC$70.2M
- Lynker Corporation$70.0M
- S C & A INC$61.5M
- Gulf South Research Corp$59.2M
- Vernadero Group INC$54.9M
- Hsg, LLC$52.2M
- Tetra Tech, INC.$40.1M
Hunting recompetes here?
10+ contracts in this NAICS end within 18 months. The largest are listed below — incumbents and end dates included.
All expiring 541620 contracts →Open opportunities
- A--Notice of Intent - Research and Technology Advancement Support, A whiteP
- Deadline
- Nov 25, 2026(13d)
- Agency
- DEPARTMENTAL OFFICES
- Type
- Special Notice
- NAICS
- 541620
- Posted
- Nov 10, 2026
- A--Notice of Intent - Evaluation on Emulsion Breaker
- Deadline
- Nov 25, 2026(13d)
- Agency
- DEPARTMENTAL OFFICES
- Type
- Special Notice
- NAICS
- 541620
- Posted
- Nov 10, 2026
- USACE - SWG Environmental Services for Evaluation of Dredged Material
- Deadline
- Nov 25, 2026(13d)
- Agency
- DEPT OF THE ARMY
- Type
- Sources Sought
- NAICS
- 541620
- Posted
- Nov 10, 2026
- BioWatch Program
- Deadline
- Dec 4, 2026(22d)
- Agency
- FEDERAL EMERGENCY MANAGEMENT AGENCY
- Type
- Sources Sought
- NAICS
- 541620
- Posted
- Nov 10, 2026
- H941--Chemical Hoods & HEPA PM
- Deadline
- Nov 12, 2026(0d)
- Agency
- VETERANS AFFAIRS, DEPARTMENT OF
- Type
- Combined Synopsis/Solicitation
- NAICS
- 541620
- Posted
- Nov 10, 2026
- Core Environmental Compliance Support Services – Darby Military Community (DMC), USAG Italy
- Deadline
- Dec 14, 2026(32d)
- Agency
- DEPT OF THE ARMY
- Type
- Solicitation
- NAICS
- 541620
- Posted
- Nov 10, 2026
- ESA/ NEPA Compliance Support for Klamath Project A
- Deadline
- Dec 9, 2026(27d)
- Agency
- DEPARTMENTAL OFFICES
- Type
- Combined Synopsis/Solicitation
- NAICS
- 541620
- Posted
- Nov 9, 2026
- H346--Legionella Water Testing
- Deadline
- Dec 22, 2026(40d)
- Agency
- VETERANS AFFAIRS, DEPARTMENT OF
- Type
- Combined Synopsis/Solicitation
- NAICS
- 541620
- Posted
- Nov 9, 2026
- Defense Logistics Agency (DLA) Environmental Liabilities Management (ELM) Program Support
- Deadline
- Dec 4, 2026(22d)
- Agency
- DEPT OF THE ARMY
- Type
- Sources Sought
- NAICS
- 541620
- Posted
- Nov 6, 2026
- F--OCSPP Consolidated Mission Support
- Deadline
- Nov 20, 2026(8d)
- Agency
- ENVIRONMENTAL PROTECTION AGENCY
- Type
- Sources Sought
- NAICS
- 541620
- Posted
- Nov 6, 2026
- Fence-To-Fence Environmental Services for Hickam Air Force Base, Hawaii, Air Force Civil
- Deadline
- Nov 25, 2026(13d)
- Agency
- DEPT OF THE ARMY
- Type
- Sources Sought
- NAICS
- 541620
- Posted
- Nov 5, 2026
- Minerals Support Project - Superior NF
- Deadline
- Nov 19, 2027(372d)
- Agency
- FOREST SERVICE
- Type
- Special Notice
- NAICS
- 541620
- Posted
- Nov 4, 2026
- Natural Resources Conservation Program Technical Support Services - Camp Darby, Italy
- Deadline
- Dec 5, 2026(23d)
- Agency
- DEPT OF THE ARMY
- Type
- Sources Sought
- NAICS
- 541620
- Posted
- Nov 4, 2026
- F--REAC task order 68HERL27F0002
- Deadline
- —
- Agency
- ENVIRONMENTAL PROTECTION AGENCY
- Type
- Award Notice
- NAICS
- 541620
- Posted
- Nov 3, 2026
- BSFB Asbestos Survey Services
- Deadline
- Dec 7, 2026(25d)
- Agency
- DEPT OF THE AIR FORCE
- Type
- Combined Synopsis/Solicitation
- NAICS
- 541620
- Posted
- Nov 3, 2026
| Title | Agency | Type | NAICS | Posted | Deadline |
|---|---|---|---|---|---|
| A--Notice of Intent - Research and Technology Advancement Support, A whiteP | DEPARTMENTAL OFFICES | Special Notice | 541620 | Nov 10, 2026 | Nov 25, 2026(13d) |
| A--Notice of Intent - Evaluation on Emulsion Breaker | DEPARTMENTAL OFFICES | Special Notice | 541620 | Nov 10, 2026 | Nov 25, 2026(13d) |
| USACE - SWG Environmental Services for Evaluation of Dredged Material | DEPT OF THE ARMY | Sources Sought | 541620 | Nov 10, 2026 | Nov 25, 2026(13d) |
| BioWatch Program | FEDERAL EMERGENCY MANAGEMENT AGENCY | Sources Sought | 541620 | Nov 10, 2026 | Dec 4, 2026(22d) |
| H941--Chemical Hoods & HEPA PM | VETERANS AFFAIRS, DEPARTMENT OF | Combined Synopsis/Solicitation | 541620 | Nov 10, 2026 | Nov 12, 2026(0d) |
| Core Environmental Compliance Support Services – Darby Military Community (DMC), USAG Italy | DEPT OF THE ARMY | Solicitation | 541620 | Nov 10, 2026 | Dec 14, 2026(32d) |
| ESA/ NEPA Compliance Support for Klamath Project A | DEPARTMENTAL OFFICES | Combined Synopsis/Solicitation | 541620 | Nov 9, 2026 | Dec 9, 2026(27d) |
| H346--Legionella Water Testing | VETERANS AFFAIRS, DEPARTMENT OF | Combined Synopsis/Solicitation | 541620 | Nov 9, 2026 | Dec 22, 2026(40d) |
| Defense Logistics Agency (DLA) Environmental Liabilities Management (ELM) Program Support | DEPT OF THE ARMY | Sources Sought | 541620 | Nov 6, 2026 | Dec 4, 2026(22d) |
| F--OCSPP Consolidated Mission Support | ENVIRONMENTAL PROTECTION AGENCY | Sources Sought | 541620 | Nov 6, 2026 | Nov 20, 2026(8d) |
| Fence-To-Fence Environmental Services for Hickam Air Force Base, Hawaii, Air Force Civil | DEPT OF THE ARMY | Sources Sought | 541620 | Nov 5, 2026 | Nov 25, 2026(13d) |
| Minerals Support Project - Superior NF | FOREST SERVICE | Special Notice | 541620 | Nov 4, 2026 | Nov 19, 2027(372d) |
| Natural Resources Conservation Program Technical Support Services - Camp Darby, Italy | DEPT OF THE ARMY | Sources Sought | 541620 | Nov 4, 2026 | Dec 5, 2026(23d) |
| F--REAC task order 68HERL27F0002 | ENVIRONMENTAL PROTECTION AGENCY | Award Notice | 541620 | Nov 3, 2026 | — |
| BSFB Asbestos Survey Services | DEPT OF THE AIR FORCE | Combined Synopsis/Solicitation | 541620 | Nov 3, 2026 | Dec 7, 2026(25d) |
Largest contracts ending within 18 months
- 89233121FNA400380 ↗$46.5M
U.S. DEPARTMENT OF ENERGY/NATIONAL NUCLEAR SECURITY ADMINISTRATION (DOE/NNSA)OFFICE OF COUNTERTERRORISM AND COUNTER-PROLIFERATION (NA-80) TECHNICAL SUPPORT SERVICES
- Ends
- Dec 30, 2026
- Started
- Jun 30, 2021
- Agency
- Department Of Energy
- NAICS
- 541620
- 1305M224F0196 ↗$42.3M
NWS/NDBC: TECHNICAL SUPPORT SERVICES
- Ends
- Jun 29, 2027
- Started
- Jun 30, 2024
- Agency
- National Oceanic And Atmospheric Administration
- NAICS
- 541620
- 68HERC24F0515 ↗$36.2M
R499- TACKLING EMERGING CONTAMINANTS (TEC) WATER TECHNICAL ASSISTANCE (WATERTA)
- Ends
- Sep 17, 2027
- Started
- Sep 18, 2024
- Agency
- Environmental Protection Agency
- NAICS
- 541620
- 68HERC24F0156 ↗$22.9M
CLOSING AMERICAS WASTEWATER ACCESS GAP COMMUNITY PROGRAM SUPPORT
- Ends
- Feb 14, 2027
- Started
- Mar 3, 2024
- Agency
- Environmental Protection Agency
- NAICS
- 541620
- 70B01C26F00000059 ↗$19.1M
CONSTRUCTION MONITORING SERVICES FOR TCA-2 BORDER BARRIER CONSTRUCTION.
- Ends
- Jan 29, 2028
- Started
- Feb 11, 2026
- Agency
- U.S. Customs And Border Protection
- NAICS
- 541620
- 68HERC24F0211 ↗$18.1M
F115- SUPPORT FOR 2023 WATER TECHNICAL ASSISTANCE ENGINEERING SUPPORT SERVICES FOR OFFICE OF WASTERWATER MANAGEMENT (OWM)
- Ends
- Aug 26, 2027
- Started
- Feb 27, 2024
- Agency
- Environmental Protection Agency
- NAICS
- 541620
- 89243321FAU400002 ↗$14.4M
THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $1,371,000.00 TO STRIPES LINE ITEM 00005, CONTRACT CLIN 00005 FOR OPTION YEAR 3. ACCORDINGLY, OPTION PERIOD III FUNDING IN THE AMOUNT OF $1,371,000.00 IS OBLIGATED TO
- Ends
- Apr 29, 2027
- Started
- Aug 24, 2021
- Agency
- Department Of Energy
- NAICS
- 541620
- 89243322FAU400003 ↗$14.0M
THE PURPOSE OF THIS MODIFICATION IS TO DEOBLIGATE FUNDING FROM ONE CLIN AND REOBLIGATING TO ANOTHER CLIN.
- Ends
- Mar 30, 2027
- Started
- Feb 28, 2022
- Agency
- Department Of Energy
- NAICS
- 541620
- 68HE0925F0018 ↗$13.9M
2025 CALIFORNIA WILDFIRES AND STRAIGHT-LINE WINDS EVENT. TO 110 TO SUPPORT THE 2025 SOCAL WILDFIRES.
- Ends
- Dec 30, 2026
- Started
- Jan 9, 2025
- Agency
- Environmental Protection Agency
- NAICS
- 541620
- 68HERH25F0091 ↗$12.6M
COMPETITIVE EARTH T&M/FFP HYBRID CALL ORDER FOR ORD ENTITLED BIL DRINKING WATER LEAD TECHNICAL SUPPORT. PERIOD OF PERFORMANCE MAY 5, 2025, TO MAY 4, 2026.
- Ends
- May 3, 2027
- Started
- May 4, 2025
- Agency
- Environmental Protection Agency
- NAICS
- 541620
| PIID | Contractor | Description | Agency | NAICS | Obligated | Start | End |
|---|---|---|---|---|---|---|---|
| 89233121FNA400380 ↗ | Project Enhancement Corporation | U.S. DEPARTMENT OF ENERGY/NATIONAL NUCLEAR SECURITY ADMINISTRATION (DOE/NNSA)OFFICE OF COUNTERTERRORISM AND COUNTER-PROLIFERATION (NA-80) TECHNICAL SUPPORT SERVICES | Department Of Energy | 541620 | $46.5M | Jun 30, 2021 | Dec 30, 2026 |
| 1305M224F0196 ↗ | Lynker Corporation | NWS/NDBC: TECHNICAL SUPPORT SERVICES | National Oceanic And Atmospheric Administration | 541620 | $42.3M | Jun 30, 2024 | Jun 29, 2027 |
| 68HERC24F0515 ↗ | S C & A INC | R499- TACKLING EMERGING CONTAMINANTS (TEC) WATER TECHNICAL ASSISTANCE (WATERTA) | Environmental Protection Agency | 541620 | $36.2M | Sep 18, 2024 | Sep 17, 2027 |
| 68HERC24F0156 ↗ | Eastern Research Group INC | CLOSING AMERICAS WASTEWATER ACCESS GAP COMMUNITY PROGRAM SUPPORT | Environmental Protection Agency | 541620 | $22.9M | Mar 3, 2024 | Feb 14, 2027 |
| 70B01C26F00000059 ↗ | Vernadero Group INC | CONSTRUCTION MONITORING SERVICES FOR TCA-2 BORDER BARRIER CONSTRUCTION. | U.S. Customs And Border Protection | 541620 | $19.1M | Feb 11, 2026 | Jan 29, 2028 |
| 68HERC24F0211 ↗ | Eastern Research Group INC | F115- SUPPORT FOR 2023 WATER TECHNICAL ASSISTANCE ENGINEERING SUPPORT SERVICES FOR OFFICE OF WASTERWATER MANAGEMENT (OWM) | Environmental Protection Agency | 541620 | $18.1M | Feb 27, 2024 | Aug 26, 2027 |
| 89243321FAU400002 ↗ | Project Enhancement Corporation | THE PURPOSE OF THIS MODIFICATION IS TO ADD INCREMENTAL FUNDING IN THE AMOUNT OF $1,371,000.00 TO STRIPES LINE ITEM 00005, CONTRACT CLIN 00005 FOR OPTION YEAR 3. ACCORDINGLY, OPTION PERIOD III FUNDING IN THE AMOUNT OF $1,371,000.00 IS OBLIGATED TO | Department Of Energy | 541620 | $14.4M | Aug 24, 2021 | Apr 29, 2027 |
| 89243322FAU400003 ↗ | Project Enhancement Corporation | THE PURPOSE OF THIS MODIFICATION IS TO DEOBLIGATE FUNDING FROM ONE CLIN AND REOBLIGATING TO ANOTHER CLIN. | Department Of Energy | 541620 | $14.0M | Feb 28, 2022 | Mar 30, 2027 |
| 68HE0925F0018 ↗ | Weston Solutions INC | 2025 CALIFORNIA WILDFIRES AND STRAIGHT-LINE WINDS EVENT. TO 110 TO SUPPORT THE 2025 SOCAL WILDFIRES. | Environmental Protection Agency | 541620 | $13.9M | Jan 9, 2025 | Dec 30, 2026 |
| 68HERH25F0091 ↗ | S C & A INC | COMPETITIVE EARTH T&M/FFP HYBRID CALL ORDER FOR ORD ENTITLED BIL DRINKING WATER LEAD TECHNICAL SUPPORT. PERIOD OF PERFORMANCE MAY 5, 2025, TO MAY 4, 2026. | Environmental Protection Agency | 541620 | $12.6M | May 4, 2025 | May 3, 2027 |