Top Interior remediation services contractors
In the 12 months ending Oct 5, 2026, the Department of the Interior obligated $14.8M in net prime contract dollars under NAICS 562910, down 42.4% from $25.6M in the preceding 12 months. 78 prime contractors received positive obligations, and 19 of them accounted for 80% of that spend.
Prime contracts funded by the Department of the Interior. 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 Interior 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 | Eastern Shawnee Professional Services, LLC | $2.4M | $1.2M | 13.8% | ▲ 4 |
| 2 | Custom Lawn Service, Inc. | $1.8M | $0 | 10.2% | New |
| 3 | North Wind General Contractors LLC | $1.8M | $4.6M | 10.1% | ▼ 2 |
| 4 | Weaver Excavating Inc | $1.5M | $551K | 8.7% | ▲ 9 |
| 5 | Oneida Total Integrated Enterprises LLC | $961K | $0 | 5.5% | New |
| 6 | Nicklaus ECM JV, LLC | $733K | $810K | 4.2% | ▲ 1 |
| 7 | Benson Farms, Inc. | $655K | $388K | 3.8% | ▲ 11 |
| 8 | DDC 4c, LLC | $598K | $0 | 3.4% | New |
| 9 | Applied Intellect - Trihydro 8a JV II LLC | $436K | $429K | 2.5% | ▲ 8 |
| 10 | Okie LLC | $402K | $0 | 2.3% | New |
| 11 | Rivers Edge Environmental Services, Inc. | $371K | −$383K | 2.1% | New |
| 12 | Lacreek Development Corp | $353K | $0 | 2.0% | New |
| 13 | Tanana Commercial Company LLC | $346K | $530K | 2.0% | ▲ 1 |
| 14 | IO Environmental and Infrastructure Incorporated | $337K | $0 | 1.9% | New |
| 15 | Mabbett & Associates, Inc. | $297K | $784K | 1.7% | ▼ 7 |
What changed in the last 12 months
Contractors with the largest change in reported obligations versus the preceding 12 months.
Largest gains
- Custom Lawn Service, Inc.$0 → $1.8M (+$1.8M) · now #2
- Eastern Shawnee Professional Services, LLC$1.2M → $2.4M (+$1.2M) · now #1
- Oneida Total Integrated Enterprises LLC$0 → $961K (+$961K) · now #5
Largest declines
- Broadbent & Associates, Inc.$4.5M → −$1.3M (−$5.7M) · no latest-period obligations
- North Wind General Contractors LLC$4.6M → $1.8M (−$2.8M) · now #3
- Rock GAP Engineering LLC$2.1M → $4K (−$2.1M) · now #78
New to this market
40 contractors received their first obligations in this market (since FY2022) during the latest 12 months. The largest:
| Contractor | First obligation | Latest 12 mo |
|---|---|---|
| Custom Lawn Service, Inc. | Jun 29, 2026 | $1.8M |
| DDC 4c, LLC | Sep 24, 2026 | $598K |
| Okie LLC | Aug 6, 2026 | $402K |
| IO Environmental and Infrastructure Incorporated | Feb 5, 2026 | $337K |
| Paragon Professional Services LLC | Jul 1, 2026 | $259K |
| Merkel & Associates, Inc. | Dec 5, 2025 | $250K |
| Chemtrack Alaska, Inc. | May 13, 2026 | $130K |
| Insulation Specialties, Incorporated | Sep 21, 2026 | $90K |
Where the money comes from
Funding sub-agencies within the Department of the Interior, 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 |
|---|---|---|---|
| Bureau of Indian Affairs and Bureau of Indian Education | $5.1M | $5.4M | Down $273K (5.1%) |
| National Park Service | $2.5M | $6.0M | Down $3.5M (58.1%) |
| Office of Surface Mining, Reclamation and Enforcement | $2.2M | $260K | Up $2.0M (753.0%) |
| Bureau of Land Management | $2.1M | $9.9M | Down $7.8M (78.6%) |
| U.S. Fish and Wildlife Service | $1.9M | $1.5M | Up $401K (27.1%) |
| Bureau of Reclamation | $1.2M | $1.1M | Up $98K (8.7%) |
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 |
|---|---|---|---|
| 140L1224F0035 | Nicklaus ECM JV, LLC AML INVENTORY CA DESERT | $1.3M | Dec 31, 2026 |
| 140A1121P0070 | Oneida Total Integrated Enterprises LLC SCIP PCB CLEANUP PROJECT | $3.6M | Dec 31, 2026 |
| 140R2021P0103 | Sierra West Consultants, Inc PUTAH CREEK UNDERGROUND STORAGE TANK REMEDIATION | $1.1M | Mar 14, 2027 |
| 140A0925P0086 | Rock GAP Engineering LLC TUBA CITY OU 2 & 3 - EXCAVATION & BIO-REMEDIATION, BIA, NRO, BEM | $2.1M | Mar 31, 2027 |
| 140FC225C0007 | BBJ Group LLC IN ACCORDANCE WITH THE ATTACHED STATEMENT OF WORK, THIS AWARD IS TO PERFORM SOIL REMEDIATION. | $3.6M | Jun 1, 2027 |
| 140P2125C0023 | Mabbett & Associates, Inc. NTCRA UNDER CERCLA AT PINHOOK BOG DEBRIS SITE IN INDIANA DUNES NP. | $1.1M | Jun 16, 2027 |
| 140S0326C0005 | Weaver Excavating Inc SYNAR AML RECLAMATION CONSTRUCTION | $1.5M | Jun 30, 2027 |
| 140R1724P0055 | Benson Farms, Inc. SCHAAKE REVEGETATION 2024 | $1.5M | Sep 15, 2027 |
| 140P2124C0001 | Engineering/Remediation Resources Group, Inc. NON-TIME CRITICAL REMOVAL ACTION (NTCRA) UNDER CERCLA AT EL CAPITAN FORMER WASTE DUMP IN YOSEMITE NATIONAL PARK. INCLUDES UNIT-PRICED ITEMS WITH ESTIMATED QUANTITIES, AND OPTIONS… | $6.2M | Sep 30, 2027 |
| 140FC324C0007 | Potawatomi Defense Operations LLC AK-YUKON DELTA NWR-BIA-SOIL REMEDIATION | $3.4M | Dec 20, 2027 |
Common questions
Who are the top Interior contractors for NAICS 562910?
In the latest 12 months, Eastern Shawnee Professional Services, LLC ($2.4M), Custom Lawn Service, Inc. ($1.8M), North Wind General Contractors LLC ($1.8M) received the most Interior obligations for remediation services.
How concentrated is this market?
The eight largest primes held 59.8% of positive obligations, and Eastern Shawnee Professional Services, LLC alone held 13.8%. 40 contractors won their first obligations in this market during the latest 12 months.
Are any large Interior 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 140L1224F0035 (Nicklaus ECM JV, LLC, $1.3M obligated), ending Dec 31, 2026. 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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