Data / Federal awards / NAICS 541620 / Department of the Interior
Department of the Interior contracts under NAICS 541620 Environmental Consulting Services: $304.1 million to 514 recipients (FY2024 to FY2027)
Updated October 6, 2026. Source: USAspending.gov.
Department of the Interior obligated $304.1 million under NAICS 541620, Environmental Consulting Services, across 2,345 contract awards to 514 named recipients in fiscal years 2024 to 2027. The largest recipients are ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC ($20.3 million), DR REED & ASSOCIATES, INC ($13.5 million), VANASSE HANGEN BRUSTLIN INC ($12.8 million). 13 opportunities under this code are open on SAM.gov now.
The request: Every federal contract awarded by Department of the Interior under NAICS 541620, with the winner, the value and the period of performance. $10 of work on sign-up, no card.
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- Agency
- Department of the Interior
- NAICS code
- 541620 Environmental Consulting Services
- Contract awards
- 2,345
- Obligated
- $304.1 million
- Named recipients
- 514
- Small business share of obligations
- 70%
- Full and open competition share
- 65%
- Set aside share
- 36%
- Latest action
- 2026-09-25
Open opportunities in this niche
The same code on SAM.gov, read each morning: 13 opportunities you can still respond to.
Incumbents at this agency
Ranked by dollars obligated in fiscal years 2024 to 2027.
| Recipient | Business size | Awards | Obligated | Share |
|---|---|---|---|---|
| ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC | Small Business | 98 | $20.3 million | 6.7% |
| DR REED & ASSOCIATES, INC | Small Business | 1 | $13.5 million | 4.4% |
| VANASSE HANGEN BRUSTLIN INC | Other Than Small Business | 43 | $12.8 million | 4.2% |
| EASTERN RESEARCH GROUP INC | Other Than Small Business | 25 | $8.7 million | 2.9% |
| AIR RESOURCE SPECIALISTS, INC | Small Business | 21 | $8.2 million | 2.7% |
| NDN OTIE JV, LLC | Small Business | 2 | $7.8 million | 2.6% |
| TRINITY ANALYSIS AND DEVELOPMENT CORP. | Other Than Small Business | 1 | $7.2 million | 2.4% |
| STAMPEDE VENTURES, INC. | Small Business | 6 | $7.1 million | 2.3% |
| COPPERHEAD ENVIRONMENTAL CONSULTING INC | Small Business | 16 | $7.1 million | 2.3% |
| STANTEC CONSULTING SERVICES INC. | Other Than Small Business | 11 | $6.9 million | 2.3% |
| PALEOWEST LLC | Small Business | 56 | $6.4 million | 2.1% |
| APTIM FEDERAL SERVICES, LLC | Other Than Small Business | 14 | $6.3 million | 2.1% |
| WSP USA SOLUTIONS INC | Other Than Small Business | 32 | $6.2 million | 2.0% |
| SWCA, INCORPORATED | Other Than Small Business | 37 | $6.1 million | 2.0% |
| VERNADERO GROUP INC | Small Business | 10 | $5.9 million | 1.9% |
| SUNDANCE CONSULTANTS, LLC | Small Business | 39 | $5.7 million | 1.9% |
| MBK ENGINEERS | Small Business | 2 | $5.4 million | 1.8% |
| LOGAN SIMPSON DESIGN INC. | Other Than Small Business | 48 | $5 million | 1.7% |
| BLUE WORLD RESEARCH INSTITUTE INC | Other Than Small Business | 31 | $4.7 million | 1.6% |
| ABR, INC. | Small Business | 17 | $4.7 million | 1.5% |
| AARCHER, INC. | Small Business | 98 | $4.2 million | 1.4% |
| S C & A INC | Small Business | 7 | $3.9 million | 1.3% |
| ASIR LLC | Small Business | 6 | $3.7 million | 1.2% |
| ALLRED RESTORATION, INC. | Small Business | 8 | $3.3 million | 1.1% |
| NORTH WIND RESOURCE CONSULTING LLC | Small Business | 11 | $3.1 million | 1.0% |
| DJ&A, P.C. | Small Business | 12 | $3.1 million | 1.0% |
| CHEROKEE NATION MANAGEMENT & CONSULTING, L.L.C.. | Other Than Small Business | 7 | $3 million | 1.0% |
| SPECPRO SUSTAINMENT AND ENVIRONMENTAL, LLC | Small Business | 2 | $3 million | 1.0% |
| TETRA TECH, INC. | Other Than Small Business | 9 | $2.8 million | 0.9% |
| HYDROS CONSULTING INC. | Small Business | 3 | $2.8 million | 0.9% |
| CRITIGEN LLC | Other Than Small Business | 4 | $2.8 million | 0.9% |
| DAWSON MCG, INC. | Small Business | 1 | $2.7 million | 0.9% |
| ONEIDA ENVIRONMENTAL, LLC | Small Business | 2 | $2.7 million | 0.9% |
| WHITETAIL ENVIRONMENTAL, LLC | Small Business | 8 | $2.7 million | 0.9% |
| ASM AFFILIATES INC | Small Business | 23 | $2.6 million | 0.9% |
| BIO-WEST INC | Small Business | 12 | $2.5 million | 0.8% |
| DDC 4C, LLC | Small Business | 7 | $2.4 million | 0.8% |
| NEW SOUTH ASSOCIATES, INC. | Small Business | 10 | $2.3 million | 0.8% |
| MARSTEL-DAY, LLC | Small Business | 15 | $1.8 million | 0.6% |
| HSG, LLC | Other Than Small Business | 34 | $1.8 million | 0.6% |
| IRONWOOD CONSULTING INC. | Small Business | 10 | $1.7 million | 0.6% |
| CULTURAL RESOURCE ANALYSTS, INC. | Small Business | 21 | $1.7 million | 0.6% |
| ERO RESOURCES CORPORATION | Small Business | 12 | $1.6 million | 0.5% |
| FOUR PEAKS ENVIRONMENTAL SCIENCE & DATA SOLUTIONS LLC | Small Business | 1 | $1.6 million | 0.5% |
| ONEIDA-STANTEC JV LLC | Small Business | 1 | $1.5 million | 0.5% |
| SCOUT ENVIRONMENTAL, INC. | Small Business | 13 | $1.5 million | 0.5% |
| MABBETT & ASSOCIATES, INC. | Small Business | 13 | $1.5 million | 0.5% |
| ENVIRONMENTAL COST MANAGEMENT, INC. | Small Business | 11 | $1.4 million | 0.5% |
| SOLV LLC | Small Business | 6 | $1.4 million | 0.4% |
| FISHBIO | Small Business | 1 | $1.3 million | 0.4% |
Offices buying
| Sub agency | Awards | Obligated |
|---|---|---|
| Bureau of Land Management | 964 | $83.2 million |
| Bureau of Reclamation | 233 | $76.9 million |
| National Park Service | 477 | $51.7 million |
| Departmental Offices | 121 | $42.9 million |
| Bureau of Ocean Energy Management | 124 | $17.9 million |
| U.S. Fish and Wildlife Service | 236 | $17 million |
| Bureau of Indian Affairs and Bureau of Indian Education | 49 | $10.7 million |
| U.S. Geological Survey | 106 | $2.9 million |
| Bureau of Safety and Environmental Enforcement | 35 | $814,001 |
Obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2024 | $122.6 million |
| FY2025 | $93.8 million |
| FY2026 | $87.7 million |
Products and services bought
| Code | Product or service | Awards | Obligated |
|---|---|---|---|
| B510 | Special Studies/analysis- Environmental Assessments | 340 | $59.4 million |
| R499 | Support- Professional: Other | 244 | $57.4 million |
| F999 | Other Environmental Services | 502 | $39.4 million |
| B503 | Special Studies/analysis- Archeological/paleontological | 194 | $21.4 million |
| F115 | Environmental Systems Protection- Environmental Consulting and Legal Support | 56 | $14.9 million |
| F099 | Natural Resources/conservation- Other | 95 | $10.3 million |
| B529 | Special Studies/analysis- Scientific Data | 60 | $9.5 million |
| B502 | Special Studies/analysis- Air Quality | 36 | $8.6 million |
Largest contract awards
| Award ID | Recipient | Agency | Type | NAICS | What it buys | Obligated in window | Award value | Starts | Ends | Place of performance | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 140R2025P0072 | DR REED & ASSOCIATES, INC | Department of the Interior | Purchase Order | 541620 | CONTINUOUS FLOW AND WATER QUALITY MONITORING NETWORK IN THE SACRAMENTO-SAN JOAQUIN DELTA AND SUISUN BAY | $13,509,855 | $13,509,855 | September 23, 2025 | April 30, 2027 | Sacramento, CA | usaspending.gov |
| 140D0423F0720 | NDN OTIE JV, LLC | Department of the Interior | Delivery Order | 541620 | RENDON/N/A/ENVIRONMENTAL SERVICES CONTRA | $7,769,937 | $10,458,429 | August 1, 2023 | August 31, 2026 | Palm Bay, FL | usaspending.gov |
| 140D0424F0431 | TRINITY ANALYSIS AND DEVELOPMENT CORP. | Department of the Interior | Delivery Order | 541620 | ENVIRONMENTAL SERVICES F2F FOR EGLIN AFB, HURLBURT FIELD, AND TYNDALL AFB | $7,226,734 | $7,226,734 | April 22, 2024 | January 31, 2027 | Shalimar, FL | usaspending.gov |
| 140R3023F0037 | ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC | Department of the Interior | BPA Call | 541620 | EIS - POST-2026 LOWER COLORADO RIVER RESERVOIR OPERATIONAL STRATEGIES FOR LAKE POWELL AND LAKE MEAD | $6,633,273 | $14,356,181 | April 14, 2023 | April 30, 2028 | Boulder, CO | usaspending.gov |
| 140L5724F0041 | EASTERN RESEARCH GROUP INC | Department of the Interior | Delivery Order | 541620 | UTAH AIM/HAF-FLMPA INVENTORY/ASSESSMENT | $5,211,370 | $5,211,370 | September 16, 2024 | November 30, 2027 | Salt Lake City, UT | usaspending.gov |
| 140R2025F0047 | STANTEC CONSULTING SERVICES INC. | Department of the Interior | Delivery Order | 541620 | TECHNICAL SUPPORT SERVICES FOR THE LONG-TERM OPERATION OF THE CENTRAL VALLEY PROJECT | $5,145,625 | $5,145,625 | September 15, 2025 | September 14, 2030 | Sacramento, CA | usaspending.gov |
| 140R2024P0011 | MBK ENGINEERS | Department of the Interior | Purchase Order | 541620 | ENVIRONMENTAL CONSULTING SERVICE FOR THE ANALYSIS OF THE NORTH TO SOUTH WATER TRANSFER TO SUPPORT DRY AND DROUGHT CONDITION ACTIVITIES THROU | $4,927,937 | $4,927,937 | March 1, 2024 | February 29, 2028 | Sacramento, CA | usaspending.gov |
| 140D0426F1193 | VANASSE HANGEN BRUSTLIN INC | Department of the Interior | Delivery Order | 541620 | EO 14398 CONTRACTOR SUPPORT FOR PRE-NEPA, NEPA AND RELATED ENVIRONMENTAL REVIEW TASKS | $4,424,314 | $4,424,314 | September 25, 2026 | September 24, 2029 | Denver, CO | usaspending.gov |
| 140D0426F1192 | WSP USA SOLUTIONS INC | Department of the Interior | Delivery Order | 541620 | EO 14398 CONTRACTOR SUPPORT FOR PRE-NEPA, NEPA AND RELATED ENVIRONMENTAL REVIEW TASKS. | $4,424,314 | $4,424,314 | September 25, 2026 | September 24, 2029 | Denver, CO | usaspending.gov |
| 140L0625F0087 | COPPERHEAD ENVIRONMENTAL CONSULTING INC | Department of the Interior | Delivery Order | 541620 | BLM REGULATORY SUPPORT CONTRACT | $4,372,633 | $4,372,633 | September 8, 2025 | September 30, 2028 | Denver, CO | usaspending.gov |
| 140L0625F0159 | S C & A INC | Department of the Interior | Delivery Order | 541620 | 11 MAJOR RULEMAKINGS CONTRACT | $3,820,047 | $3,820,047 | September 24, 2025 | September 24, 2028 | Arlington, VA | usaspending.gov |
| 140R3023F0110 | ENVIRONMENTAL MANAGEMENT & PLANNING SOLUTIONS LLC | Department of the Interior | Delivery Order | 541620 | FEASIBILITY REPORT AND EIS - VRSMP | $3,720,507 | $4,720,507 | October 1, 2023 | December 30, 2027 | Boulder, CO | usaspending.gov |
| 140D0422F1033 | VERNADERO GROUP INC | Department of the Interior | Delivery Order | 541620 | ARMY NATIONAL GUARD GEOSPATIAL PROGRAM SUPPORT | $3,524,251 | $5,746,893 | September 29, 2022 | September 28, 2027 | Arlington, VA | usaspending.gov |
| 140R2025P0067 | SEQUOIA ECOLOGICAL CONSULTING, INC. | Department of the Interior | Purchase Order | 541620 | BATTLE CREEK SALMON AND STEELHEAD RESTORATION PROJECT-PHASE 2 ENVIRONMENTAL COMPLIANCE AND SUPPORT SERVICES | $3,186,448 | $3,186,448 | September 19, 2025 | October 1, 2027 | Redding, CA | usaspending.gov |
| 140PS125C0002 | SPECPRO SUSTAINMENT AND ENVIRONMENTAL, LLC | Department of the Interior | Definitive Contract | 541620 | SUPPORT FOR COASTAL PARK INFRASTRUCTURE | $2,863,908 | $2,863,908 | January 17, 2025 | October 19, 2026 | San Antonio, TX | usaspending.gov |
| 140L1225F0057 | NORTH WIND RESOURCE CONSULTING LLC | Department of the Interior | Delivery Order | 541620 | FACILITATION AND ASSISTANCE FOR PREPARATION OF TWO (2) ENVIRONMENTAL IMPACT STATEMENTS - TRANSMISSION LINE RATING REMEDIATION (TLRR) PROJECT | $2,795,600 | $2,795,600 | September 23, 2025 | July 30, 2027 | Idaho Falls, ID | usaspending.gov |
| 140D0424C0057 | DAWSON MCG, INC. | Department of the Interior | Definitive Contract | 541620 | ENVIRONMENTAL SUPPORT SERVICES IN SUPPORT OF FORT CAVAZOS | $2,746,110 | $3,329,683 | June 1, 2024 | May 31, 2027 | Fort Hood, TX | usaspending.gov |
| 140A1124P0058 | ONEIDA ENVIRONMENTAL, LLC | Department of the Interior | Purchase Order | 541620 | TRUST RESOURCE ASSESSMENT & REMEDIAL PLANNING | $2,622,683 | $2,622,683 | September 23, 2024 | May 23, 2028 | Milwaukee, WI | usaspending.gov |
| 140M0124F0065 | APTIM FEDERAL SERVICES, LLC | Department of the Interior | Delivery Order | 541620 | SUPPLEMENTAL RECON G&G DATA ATL OCS | $2,277,499 | $2,277,499 | September 19, 2024 | March 22, 2027 | Baton Rouge, LA | usaspending.gov |
| 140L4023F0033 | SWCA, INCORPORATED | Department of the Interior | BPA Call | 541620 | O&G LEASING NEPA & ADMIN SUPPORT | $2,269,540 | $2,730,404 | September 25, 2023 | July 31, 2028 | Albuquerque, NM | usaspending.gov |
| 140R4025F0016 | STAMPEDE VENTURES, INC. | Department of the Interior | Delivery Order | 541620 | PBRWS CULTURAL RESOURCES MANAGEMENT AND COMMUNICATIONS TO 3 | $2,017,310 | $2,017,310 | February 6, 2025 | August 31, 2026 | Santa Fe, NM | usaspending.gov |
| 140P2123F0085 | VANASSE HANGEN BRUSTLIN INC | Department of the Interior | BPA Call | 541620 | RI/FS* UNDER CERCLA AT KENNECOTT MINES AND MILL TOWN SITE IN WRANGELL - ST. ELIAS NATIONAL PARK AND PRESERVE, ALASKA. INCLUDES OPTIONS FOR M | $1,987,381 | $2,606,598 | May 30, 2023 | May 30, 2027 | Williamsburg, VA | usaspending.gov |
| 140P2126F0094 | AIR RESOURCE SPECIALISTS, INC | Department of the Interior | Delivery Order | 541620 | NR-ARD-1 GPMP NETWORK OPS TASK ORDER | $1,970,115 | $1,970,115 | July 14, 2026 | September 18, 2027 | Fort Collins, CO | usaspending.gov |
| 140L0625F0163 | COPPERHEAD ENVIRONMENTAL CONSULTING INC | Department of the Interior | Delivery Order | 541620 | 100 D/F RULEMAKINGS CONTRACT PART 1 | $1,919,148 | $1,919,148 | September 24, 2025 | September 24, 2027 | Paint Lick, KY | usaspending.gov |
| 140R4024F0034 | STAMPEDE VENTURES, INC. | Department of the Interior | Delivery Order | 541620 | PBRWS CULTURAL RESOURCES MONITORING AND COMMUNICATIONS TO2 | $1,896,564 | $1,896,564 | May 1, 2024 | May 21, 2025 | Santa Fe, NM | usaspending.gov |
Public U.S. federal spending data (U.S. Department of the Treasury). Obligations are the contract actions dated in fiscal years 2024 to 2027 of the USAspending.gov award archive of 2026-10-06; a contract's total value is its current value as USAspending reports it, including earlier years. Recipients are matched on their SAM.gov UEI, never on the name, and are shown as the government prints them. Sole proprietorships and opted-out entities count in the totals and are not named. Free to reuse with credit to SpecStream under CC BY 4.0. Spot a wrong value? Write to [email protected] with the link to this page.