Top DoD environmental consulting services contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $170.4M in net prime contract dollars under NAICS 541620, down 40.8% from $287.7M in the preceding 12 months. 204 prime contractors received positive obligations, and 52 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Defense. Latest 12 months: Oct 6, 2025 to Oct 5, 2026. Source: USAspending.gov.
DoD publishes contract data to USAspending with a 90-day delay, so the most recent months understate DoD activity.
Obligations by fiscal year
Net prime contract obligations by federal fiscal year (October to September).
Top DoD 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 | Gryphon Environmental, LLC | $14.1M | $13.2M | 8.2% | ▲ 1 |
| 2 | The Solution Foundry, LLC | $8.6M | $12.7M | 5.0% | ▲ 1 |
| 3 | Environmental Compliance Consultants, Inc. | $6.1M | $11.6M | 3.5% | ▲ 1 |
| 4 | Alpha Facilities Solutions, LLC | $5.6M | $2.3M | 3.2% | ▲ 32 |
| 5 | Jacobs Engineering Group Inc. | $5.5M | $5.5M | 3.2% | ▲ 5 |
| 6 | Osage Nation Energy Services LLC | $5.2M | $1.4M | 3.0% | ▲ 51 |
| 7 | DGI-ATI II LLC | $4.7M | $4.5M | 2.7% | ▲ 8 |
| 8 | Chenega Reliable Services LLC | $4.3M | $8.6M | 2.5% | ▼ 2 |
| 9 | Marstel-Day, LLC | $3.8M | $8.9M | 2.2% | ▼ 4 |
| 10 | Tetra Tech, Inc. | $3.7M | $3.5M | 2.2% | ▲ 10 |
| 11 | Signature Science LLC | $3.7M | $3.4M | 2.1% | ▲ 12 |
| 12 | Rmec Environmental, LLC | $3.5M | $3.5M | 2.1% | ▲ 9 |
| 13 | Haztrain Inc | $3.3M | $4.4M | 1.9% | ▲ 3 |
| 14 | Ayuda Companies | $3.3M | $0 | 1.9% | New |
| 15 | Trinity Analysis and Development Corp. | $3.2M | $3.3M | 1.8% | ▲ 10 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Osage Nation Energy Services LLC$1.4M → $5.2M (+$3.8M) · now #6
- Alpha Facilities Solutions, LLC$2.3M → $5.6M (+$3.3M) · now #4
- Ayuda Companies$0 → $3.3M (+$3.3M) · now #14
Largest declines
- Environmental Assessment Services, LLC$13.4M → $429K (−$13.0M) · now #75
- Aerostar Environmental and Construction LLC$6.7M → $0 (−$6.7M) · no latest-period obligations
- Environmental Compliance Consultants, Inc.$11.6M → $6.1M (−$5.5M) · now #3
New to this market
37 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Ayuda Companies | Apr 17, 2026 | $3.3M |
| Boudreau Associates LLC | Apr 28, 2026 | $1.4M |
| Kjeldsen, Sinnock & Neudeck, Inc. | Mar 26, 2026 | $898K |
| CDM Federal Programs Corporation | Mar 27, 2026 | $810K |
| Pika International, Inc. | Jul 2, 2026 | $771K |
| S.P. Cramer & Associates, Inc. | May 19, 2026 | $500K |
| Ecological Associates, Inc | May 27, 2026 | $415K |
| Broadbent & Associates, Inc. | Jun 2, 2026 | $347K |
Where the money comes from
Funding sub-agencies within the Department of Defense, 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 the Army | $108.8M | $179.0M | Down $70.3M (39.2%) |
| Department of the Air Force | $23.8M | $59.7M | Down $35.9M (60.1%) |
| Department of the Navy | $20.8M | $32.8M | Down $11.9M (36.4%) |
| Washington Headquarters Services | $5.2M | $8.5M | Down $3.3M (38.4%) |
| Department of Defense Education Activity | $4.9M | $169K | Up $4.7M (2770.3%) |
| Defense Finance and Accounting Service | $3.7M | $3.4M | Up $269K (7.9%) |
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 |
|---|---|---|---|
| W9123822C0011 | Jacobs Engineering Group Inc. RECORDKEEPING AND REPORTING | $28.2M | Mar 31, 2027 |
| 47QFNA23F0160 | Signature Science LLC 47QFNA23K0045 CBRNE DETECTION QUALITY ASSURANCE QA PROGRAM | $11.5M | Mar 31, 2027 |
| W9128F24F0089 | Chenega Reliable Services LLC ENVIRONMENTAL CONSULTING SUPPORT - FORT CARSON | $7.4M | Apr 3, 2027 |
| W9126G24F0226 | Gryphon Environmental, LLC BASE YEAR HW MANAGEMENT | $7.9M | Apr 15, 2027 |
| W911SA26FA106 | Gryphon Environmental, LLC NON-PERSONAL DPW SUPPORT SERVICES AT VARIOUS LOCATIONS WITHIN THE 88TH RDS 19 STATE REGION. POP 01 MAY 2026 TO 30 APRIL 2027 (1 MONTH PHASE IN AND 11 MONTH BASE, FOUR (4) TWELVE… | $8.9M | Apr 30, 2027 |
| W9126G24F0286 | Tetra Tech, Inc. HAZARDOUS WASTE SUPPLIES | $9.5M | May 1, 2027 |
| W912BV24F0076 | The Solution Foundry, LLC AIR NATIONAL GUARD READINESS CENTER (ANGRC) MANAGEMENT SYSTEMS SHAREPOINT DESIGN AND MAINTENANCE SERVICES (SDMS) BASE PERIOD FOR EMS SUPPORT TASK 1-7 AND TASK 8 CONSULTING… | $8.6M | Jun 4, 2027 |
| W912BV24F0036 | The Solution Foundry, LLC ENVIRONMENTAL MANAGEMENT SYSTEM (EMS) AND EDASH SUPPORT SERVICES FOR THE AIR FORCE CIVIL ENGINEER CENTER (AFCEC). | $11.3M | Jun 24, 2027 |
| 47QFWA24F0014 | Haztrain Inc F2F ANACOSTIA-BOLLING, LANGLEY-EUSTIS, ANDREWS, AND DOVER BLEAD ENVIRONMENTAL SERVICES | $8.1M | Jun 26, 2027 |
| W56ZTN21F0068 | Renova-Sovereign Joint Venture PERFORM ENVIRONMENTAL REMEDIAL ACTION OPERATION SUPPORT SERVICES AT ABERDEEN PROVIDING GROUND, MARYLAND. | $11.1M | Aug 13, 2027 |
Common questions
Who are the top DoD contractors for NAICS 541620?
In the latest 12 months, Gryphon Environmental, LLC ($14.1M), The Solution Foundry, LLC ($8.6M), Environmental Compliance Consultants, Inc. ($6.1M) received the most DoD obligations for environmental consulting services.
How concentrated is this market?
The eight largest primes held 31.3% of positive obligations, and Gryphon Environmental, LLC alone held 8.2%. 37 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD 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 W9123822C0011 (Jacobs Engineering Group Inc., $28.2M obligated), ending Mar 31, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$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.
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