Top DOT remediation services contractors
In the 12 months ending Oct 5, 2026, the Department of Transportation obligated $55.9M in net prime contract dollars under NAICS 562910, up 87.9% from $29.8M in the preceding 12 months. 27 prime contractors received positive obligations, and 3 of them accounted for 80% of that spend.
Prime contracts funded by the Department of Transportation. 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 DOT contractors for NAICS 562910
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 | Amentum Environment & Energy, Inc. | $29.0M | $13.3M | 51.8% | — |
| 2 | Brice Solutions, LLC | $14.7M | $4.2M | 26.3% | ▲ 1 |
| 3 | Nuclear Ship Support Services LLC | $4.2M | $6.7M | 7.5% | ▼ 1 |
| 4 | Nunarescon JV, LLC | $3.0M | $0 | 5.3% | New |
| 5 | RMS Nicklaus JV II LLC | $1.1M | $0 | 1.9% | New |
| 6 | Paragon Environmental Services, LLC | $1.1M | $695K | 1.9% | ▼ 1 |
| 7 | Eastern Environmental Solutions Inc. | $798K | $0 | 1.4% | New |
| 8 | Engineering/Remediation Resources Group, Inc. | $500K | $0 | 0.9% | New |
| 9 | Bethel Engineering & Consulting LLC | $368K | $1.3M | 0.7% | ▼ 5 |
| 10 | Aces, LLC | $283K | $0 | 0.5% | New |
| 11 | Gallagher Marine Systems, LLC | $200K | $200K | 0.4% | — |
| 12 | Arctic Septic and Restoration LLC | $85K | $0 | 0.1% | New |
| 13 | Coastal Environmental Technologies Ltd | $81K | $95K | 0.1% | ▲ 3 |
| 14 | Agviq Environmental Services LLC | $74K | $352K | 0.1% | ▼ 7 |
| 15 | Ahtna Solutions, LLC | $66K | $337K | 0.1% | ▼ 7 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Amentum Environment & Energy, Inc.$13.3M → $29.0M (+$15.7M) · now #1
- Brice Solutions, LLC$4.2M → $14.7M (+$10.5M) · now #2
- Nunarescon JV, LLC$0 → $3.0M (+$3.0M) · now #4
Largest declines
- Nuclear Ship Support Services LLC$6.7M → $4.2M (−$2.5M) · now #3
- Bethel Engineering & Consulting LLC$1.3M → $368K (−$946K) · now #9
- TMI Coatings, LLC$587K → $36K (−$551K) · now #22
New to this market
13 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Nunarescon JV, LLC | Apr 22, 2026 | $3.0M |
| RMS Nicklaus JV II LLC | Mar 19, 2026 | $1.1M |
| Eastern Environmental Solutions Inc. | Aug 11, 2026 | $798K |
| Engineering/Remediation Resources Group, Inc. | Feb 23, 2026 | $500K |
| Aces, LLC | Jul 15, 2026 | $283K |
| Arctic Septic and Restoration LLC | Mar 12, 2026 | $85K |
| Rescon Alaska, LLC | Jun 4, 2026 | $63K |
| FPM Remediations, Inc. | Sep 21, 2026 | $51K |
Where the money comes from
Funding sub-agencies within the Department of Transportation, 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 |
|---|---|---|---|
| Federal Aviation Administration | $50.6M | $22.1M | Up $28.5M (129.4%) |
| Maritime Administration | $5.3M | $7.1M | Down $1.8M (24.9%) |
| Immediate Office of the Secretary of Transportation | $10K | $512K | Down $502K (98.1%) |
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 |
|---|---|---|---|
| 692M1526F00109 | Amentum Environment & Energy, Inc. ERSS - CLIN 0001: AREA 56 NON-TIME CRITICAL REMOVAL ACTION LANDFILL WASTE REMOVAL | $4.4M | Apr 26, 2027 |
| 697DCK23C00253 | Brice Solutions, LLC NOME BLDG, NDB, FSS REMEDIAL ACTION | $1.9M | May 31, 2027 |
| 692M1526F00077 | Amentum Environment & Energy, Inc. BUILDING 33 INTERIM CARBON TREATMENT SYSTEM UNDER ENVIRONMENTAL REMEDIATION SUPPORT SERVICES (ERSS) CONTRACT | $2.1M | Jun 2, 2027 |
| 692M1526F00094 | Amentum Environment & Energy, Inc. YEAR 6 CLIN 0004 GIS/GPS SUPPORT | $1.5M | Jun 30, 2027 |
| 692M1526F00278 | Amentum Environment & Energy, Inc. ENVIRONMENTAL REMEDIATION SUPPORT SERVICES (ERSS) - AREA Y NON-TIME CRITICAL REMOVAL ACTION - GROUNDWATER | $2.1M | Sep 9, 2027 |
| 692M1526F00096 | Amentum Environment & Energy, Inc. PERFORM THE NON-TIME CRITICAL REMOVAL ACTION TO ADDRESS A SOURCE AREA AT THE FAA WILLIAM J HUGHES TECHNICAL CENTER SUPERFUND AREA 41 (AVGAS FUEL FARM AND PHOTO LAB) UNDERGROUND… | $15.2M | Dec 28, 2027 |
| 697DCK26C00177 | Brice Solutions, LLC REMEDIATION OF CONTAMINATED SOIL AT SITE 51 AREAS OF CONCERN 51A, 51B, 51C, AND 51D. WILL ALSO PERFORM THE REQUIRED RELEASE INVESTIGATION AT SITE 53 FORMER HOUSING LOCATIONS PER… | $8.0M | Mar 31, 2028 |
| 697DCK24C00202 | Brice Solutions, LLC MCGRATH ECU REMEDIAL ACTION PER STATEMENT OF WORK AND ACCEPTED PROPOSAL. | $3.3M | Mar 31, 2028 |
| 697DCK26C00109 | Brice Solutions, LLC BIRCHES REMEDIAL ACTION, DEMOLITION, AND GROUNDWATER MONITORING PER STATEMENT OF WORK. | $3.0M | Mar 31, 2028 |
| 697DCK26C00178 | Nunarescon JV, LLC SUMMIT AIRFIELD REMEDIAL ACTION - IIJA FUNDS. JCN 25016182, UMM RTH AOC 2 AND JCN 25016180 UMM FSS AOC 1 PER THE STATEMENT OF WORK. | $2.9M | Mar 31, 2028 |
Common questions
Who are the top DOT contractors for NAICS 562910?
In the latest 12 months, Amentum Environment & Energy, Inc. ($29.0M), Brice Solutions, LLC ($14.7M), Nuclear Ship Support Services LLC ($4.2M) received the most DOT obligations for remediation services.
How concentrated is this market?
The eight largest primes held 97.1% of positive obligations, and Amentum Environment & Energy, Inc. alone held 51.8%. 13 contractors won their first obligations in this market during the latest 12 months.
Are any large DOT NAICS 562910 contracts ending soon?
10 of the largest awards in this market reach their current end date in the next 18 months. The first is 692M1526F00109 (Amentum Environment & Energy, Inc., $4.4M obligated), ending Apr 26, 2027. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
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$14.1MFigures 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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