Top DoD hazardous waste collection contractors
In the 12 months ending Oct 5, 2026, the Department of Defense obligated $21.6M in net prime contract dollars under NAICS 562112, down 26.0% from $29.1M in the preceding 12 months. 56 prime contractors received positive obligations, and 14 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 562112
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 | Perikin Enterprises LLC | $3.1M | $2.9M | 14.4% | ▲ 1 |
| 2 | Mellor Engineering Inc | $1.9M | $2.2M | 8.7% | ▲ 2 |
| 3 | US Ecology Washington Inc | $1.7M | $1.1M | 7.8% | ▲ 7 |
| 4 | Triumvirate Environmental, LLC | $1.6M | $2.1M | 7.6% | ▲ 1 |
| 5 | Haztrain Inc | $1.6M | $1.6M | 7.6% | ▲ 3 |
| 6 | Pacific Commercial Services, Inc. | $1.6M | $953K | 7.2% | ▲ 5 |
| 7 | Seres Engineering & Services LLC | $1.1M | $1.1M | 5.0% | ▲ 2 |
| 8 | Landscape Management Systems, Inc. | $1.0M | $3.6M | 4.8% | ▼ 7 |
| 9 | EWA Direction Inc. | $881K | $845K | 4.1% | ▲ 3 |
| 10 | North Wind Site Services, LLC | $804K | $1.9M | 3.7% | ▼ 3 |
| 11 | Noreas, Inc. | $703K | $2.2M | 3.3% | ▼ 8 |
| 12 | Amentum Services, Inc. | $509K | $477K | 2.4% | ▲ 5 |
| 13 | Remondis Industrie Service Gmbh. | $505K | $490K | 2.3% | ▲ 2 |
| 14 | Energysolutions, LLC | $461K | $487K | 2.1% | ▲ 2 |
| 15 | Sebang OIL Corporation | $447K | $438K | 2.1% | ▲ 3 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- US Ecology Washington Inc$1.1M → $1.7M (+$632K) · now #3
- Pacific Commercial Services, Inc.$953K → $1.6M (+$610K) · now #6
- Gryphon Environmental, LLC$0 → $352K (+$352K) · now #18
Largest declines
- Landscape Management Systems, Inc.$3.6M → $1.0M (−$2.6M) · now #8
- Potomac Environmental Inc$2.0M → $0 (−$2.0M) · no latest-period obligations
- Noreas, Inc.$2.2M → $703K (−$1.5M) · now #11
New to this market
11 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Graymar Environmental Services, LLC | Jan 14, 2026 | $309K |
| Lepier OIL Company, Inc. | Jun 16, 2026 | $185K |
| Mill City Environmental Corporation | Jun 18, 2026 | $123K |
| Sentinel Group LLC | Jun 11, 2026 | $49K |
| Tysam Tech, LLC | May 14, 2026 | $49K |
| Joliva Trucking LLC | Jun 30, 2026 | $20K |
| Ardleigh Minerals, Inc | Feb 20, 2026 | $19K |
| MTS General Trading & Construction | Dec 8, 2025 | $14K |
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 Navy | $10.7M | $15.8M | Down $5.1M (32.2%) |
| Department of the Army | $8.7M | $9.5M | Down $848K (8.9%) |
| Department of the Air Force | $1.5M | $2.9M | Down $1.4M (49.5%) |
| Defense Health Agency | $629K | $781K | Down $153K (19.5%) |
| Defense Logistics Agency | $84K | −$3K | Up $87K (3013.3%) |
| Uniformed Services University of the Health Sciences | $48K | $136K | Down $88K (64.7%) |
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 |
|---|---|---|---|
| W912D025CA003 | North Wind Site Services, LLC PROVIDE HAZARDOUS WASTE COLLECTION FOR FORT WAINWRIGHT ALASKA IN ACCORDANCE WITH THE PWS. | $2.7M | Oct 31, 2026 |
| W912BV26FA025 | Perikin Enterprises LLC HAZARDOUS WASTE OPERATIONS AND SPILL SUPPORT SERVICES FORT BLISS, TEXAS, AND NEW MEXICO | $3.0M | Feb 18, 2027 |
| W9124M23C0002 | Seres Engineering & Services LLC HAZARDOUS WASTE & HAZARDOUS MATERIAL MANAGEMENT SUPPORT SERVICES | $4.6M | Feb 28, 2027 |
| N4019225F4163 | Noreas, Inc. MOBILIZATION & BASE PERIOD FIRM-FIXED PRICE RECURRING WORK TO PROVIDE ENVIRONMENTAL IDIQ SERVICES FOR HAZARDOUS WASTE, AND SPILL RESPONSE AT JOINT REGION MARIANAS, GUAM | $2.2M | Mar 9, 2027 |
| FA500423C0001 | Environmental Compliance Consultants, Inc. SERVICE CONTRACT TO OPERATE, SERVICE, CLEAN, MAINTAIN AND REPAIR WASTEWATER PRETREATMENT SYSTEMS (OIL-WATER SEPARATORS) AND GREASE TRAPS ON EAFB, ALASKA INSTALLATION PROPERTY. | $1.8M | Apr 30, 2027 |
| W912UM24P0002 | Sebang OIL Corporation HAZARDOUS WASTE MANAGEMENT SERVICE FOR OSAN AB AND KUNSAN AB | $1.4M | Jul 31, 2027 |
| FA500424P0026 | US Ecology Alaska LLC FUEL SPILL SOIL REMEDIATION. | $1.1M | Aug 31, 2027 |
Common questions
Who are the top DoD contractors for NAICS 562112?
In the latest 12 months, Perikin Enterprises LLC ($3.1M), Mellor Engineering Inc ($1.9M), US Ecology Washington Inc ($1.7M) received the most DoD obligations for hazardous waste collection.
How concentrated is this market?
The eight largest primes held 63.2% of positive obligations, and Perikin Enterprises LLC alone held 14.4%. 11 contractors won their first obligations in this market during the latest 12 months.
Are any large DoD NAICS 562112 contracts ending soon?
7 of the largest awards in this market reach their current end date in the next 18 months. The first is W912D025CA003 (North Wind Site Services, LLC, $2.7M obligated), ending Oct 31, 2026. An end date is a research lead, not a confirmed recompete: options and extensions often move it.
Related markets
NAICS 562112 across all agencies
VA · NAICS 562112
$19.3MHHS · NAICS 562112
$15.5MFigures 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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