Top DOE environmental consulting services contractors
In the 12 months ending Oct 5, 2026, the Department of Energy obligated $77.2M in net prime contract dollars under NAICS 541620, up 2.5% from $75.3M in the preceding 12 months. 20 prime contractors received positive obligations, and 3 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Energy. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DOE contractors for NAICS 541620
Ranked by positive obligations in the latest 12 months. Share is of all positive obligations in this market.
| # | Contractor | Latest 12 mo | Prior 12 mo | Share | Rank change |
|---|---|---|---|---|---|
| 1 | Project Enhancement Corporation | $46.8M | $48.3M | 57.6% | — |
| 2 | Independent Strategic Management Solutions Inc | $15.7M | $10.0M | 19.3% | — |
| 3 | Tetra Tech, Inc. | $4.9M | $3.3M | 6.1% | ▲ 2 |
| 4 | Neptune and Company, Incorporated | $4.0M | $4.4M | 4.9% | ▼ 1 |
| 5 | WSP USA Solutions Inc | $2.9M | $3.8M | 3.6% | ▼ 1 |
| 6 | S C & a Inc | $1.6M | $1.6M | 1.9% | ▲ 1 |
| 7 | Technical Resources Group Inc. | $1.5M | $1.4M | 1.8% | ▲ 2 |
| 8 | S & K Federal Services LLC | $851K | $724K | 1.1% | ▲ 4 |
| 9 | Edward Holmes, Inc. | $716K | $1.1M | 0.9% | ▲ 1 |
| 10 | North Wind Site Services, LLC | $420K | −$623K | 0.5% | New |
| 11 | fed95 LLC | $365K | $0 | 0.4% | New |
| 12 | Environmental Resources Management Inc | $313K | $735K | 0.4% | ▼ 1 |
| 13 | Cenpec, LLC | $236K | $0 | 0.3% | New |
| 14 | Purdue Applied Research Institute, LLC | $231K | $18K | 0.3% | ▲ 3 |
| 15 | Vernadero Group Inc | $208K | $0 | 0.3% | New |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Independent Strategic Management Solutions Inc$10.0M → $15.7M (+$5.6M) · now #2
- Boston Government Services, LLC−$3.5M → $0 (+$3.5M) · no latest-period obligations
- Tetra Tech, Inc.$3.3M → $4.9M (+$1.6M) · now #3
Largest declines
- Potomac-Hudson Engineering Inc$3.3M → −$2.9M (−$6.2M) · no latest-period obligations
- Accent Compliance, LLC$1.5M → −$149K (−$1.6M) · no latest-period obligations
- Project Enhancement Corporation$48.3M → $46.8M (−$1.5M) · now #1
New to this market
4 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Cenpec, LLC | Sep 15, 2026 | $236K |
| Vernadero Group Inc | Aug 28, 2026 | $208K |
| Simpson Gumpertz & Heger Inc. | May 29, 2026 | $100K |
| Geocomp, Inc. | Dec 19, 2025 | $7K |
Where the money comes from
Funding sub-agencies within the Department of Energy, latest 12 months. The funding organization can differ from the office that runs the requirement.
| Funding sub-agency | Latest 12 mo | Prior 12 mo | Change |
|---|---|---|---|
| Department of Energy | $73.5M | $69.3M | Up $4.2M (6.1%) |
| Federal Energy Regulatory Commission | $3.7M | $6.0M | Down $2.3M (38.2%) |
Potential recompetes
Large awards in this market whose current period of performance ends in the next 18 months. Treat these as research leads: options, extensions, and follow-on vehicles often change the timing.
| Award | Incumbent | Obligated | Current end |
|---|---|---|---|
| 89303322CEM000095 | Edward Holmes, Inc. PPPO CITIZENS ADVISORY BOARD (CAB) SITE SPECIFIC ADVISORY BOARDS (SSAB) SUPPORT | $4.4M | Nov 30, 2026 |
| 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 | $119.6M | Dec 31, 2026 |
| 89303924FEM000281 | Independent Strategic Management Solutions Inc THIS BPA CALL WILL BE PLACED AGAINST BPA 89303923AEM000019 WITH INDEPENDENT STRATEGIC MANAGEMENT SOLUTIONS, INC. FOR NUCLEAR SAFETY SUPPORT IN ACCORDANCE WITH THE STATEMENT OF… | $4.8M | Jan 31, 2027 |
| 89233125FNA000182 | Tetra Tech, Inc. TECHNICAL SUPPORT SERVICES FOR NATIONAL ENVIRONMENTAL POLICY ACT COMPLIANCE ASSOCIATED WITH THE PIT PRODUCTION PROGRAM FOR DEPARTMENT OF ENERGY NATIONAL NUCLEAR SECURITY… | $4.5M | Mar 16, 2027 |
| 89603024F0022 | WSP USA Solutions Inc HYDROPOWER ENVIRONMENTAL AND ENGINEERING SERVICES (HEES) SUPPORT SERVICES | $11.3M | Mar 31, 2027 |
| 89243322FAU400003 | Project Enhancement Corporation U.S. DEPARTMENT OF ENERGY (DOE) OFFICE OF THE ASSOCIATE UNDER (AU) SECRETARY FOR SECURITY SUPPORT SERVICES. CONTRACTOR TO DEVELOP AND IMPLEMENT SAFEGUARDS AND SECURITY PROGRAMS… | $31.0M | Mar 31, 2027 |
| 89243321FAU400002 | Project Enhancement Corporation U.S. DEPARTMENT OF ENERGYS (DOE) OFFICE OF THE ASSOCIATE UNDER (AU) SECRETARY FOR ENVIRONMENT, HEALTH AND SAFETY TECHNICAL SUPPORT SERVICES DOE/NNSA TEPS BPA DE-NA0003061 (MELE) | $36.8M | Apr 30, 2027 |
| 89233126FNA000218 | Tetra Tech, Inc. TECHNICAL SUPPORT SERVICES FOR NATIONAL ENVIRONMENTAL POLICY ACT (NEPA) COMPLIANCE ASSOCIATED WITH SITE-WIDE DOCUMENT DEVELOPMENT FOR DEPARTMENT OF ENERGY/NATIONAL NUCLEAR… | $3.3M | May 31, 2027 |
| 89243624FCD000018 | Potomac-Hudson Engineering Inc TECHNICAL SUPPORT SERVICES (NEPA BPA ORDER) | $6.1M | Aug 14, 2027 |
| 89303325FEM400444 | Technical Resources Group Inc. WITHIN THE DOE OFFICE OF ENVIRONMENTAL MANAGEMENT, THE OFFICE OF PACKAGING AND TRANSPORTATION IMPLEMENTS THE COMPLEX-WIDE TEPP TO ADDRESS PREPAREDNESS ISSUES FOR SHIPMENTS OF DOE… | $3.2M | Dec 31, 2027 |
Common questions
Who are the top DOE contractors for NAICS 541620?
In the latest 12 months, Project Enhancement Corporation ($46.8M), Independent Strategic Management Solutions Inc ($15.7M), Tetra Tech, Inc. ($4.9M) received the most DOE obligations for environmental consulting services.
How concentrated is this market?
The eight largest primes held 96.3% of positive obligations, and Project Enhancement Corporation alone held 57.6%. 4 contractors won their first obligations in this market during the latest 12 months.
Are any large DOE NAICS 541620 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 89303322CEM000095 (Edward Holmes, Inc., $4.4M obligated), ending Nov 30, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 541620 across all agencies
EPA · NAICS 541620
$287.8MDHS · NAICS 541620
$212.7MDoD · NAICS 541620
$170.4MCommerce · NAICS 541620
$92.1MInterior · NAICS 541620
$77.7MNASA · NAICS 541620
$38.7MUSDA · NAICS 541620
$24.7MVA · NAICS 541620
$19.1MFigures are net obligations on prime contracts (award types A–D) from USAspending.gov, grouped by funding agency and the NAICS code on each award. Net obligations include deobligations and corrections, so they can differ from positive-obligation totals. See methodology.
Ready to connect your pursuit work?
GovEagle gives BD directors, capture managers, and proposal teams one AI workspace from pipeline through proposal, with CMMC/FedRAMP Certified compliance built in.