DOI contracts: Department of the Interior
The Department of the Interior posts its contract opportunities on SAM.gov. Below are the ones open right now, what DOI buys, how much of its money goes to small businesses, and who wins its work.
- Open contracts now
- 166
- Contract spending, FY2026
- $6.8 billion
- Share to small businesses
- 55%
Open DOI contracts, due soonest
- AK-BETHEL ADMINISTRATIVE-WINDOW FRAME
Due in 2 daysOct 7, 2026
- OPERATION AND MAINTENANCE OF YDP, IDIQ
Due in 2 daysOct 7, 2026
- Rehabilitation of Water and Wastewater System
Due in 2 daysOct 7, 2026
- WI-FWS UPR MS RIV NATL-HERBICIDE TREATMENT AT BRIC
Due in 2 daysOct 7, 2026
- Delta WH&B Facility Hay
Due in 2 daysOct 7, 2026
- MN-MORRIS WMD-ARCHEOLOGICAL SURVEY
Due in 2 daysOct 7, 2026
DOI agencies with open contracts
- National Park Service (NPS): 56 open
- Bureau of Land Management (BLM): 25 open
- Bureau of Reclamation (BOR): 22 open
- Departmental Offices: 20 open
- U.S. Fish and Wildlife Service (USFWS): 20 open
- Bureau of Indian Affairs and Bureau of Indian Education: 13 open
- U.S. Geological Survey (USGS): 8 open
- Office of Surface Mining, Reclamation and Enforcement (OSMRE): 1 open
- Bureau of Safety and Environmental Enforcement (BSEE): 1 open
What DOI is buying right now
NAICS codes on DOI's open notices. Each notice's code sets the size standard for who counts as small.
| Code | Industry | Open now |
|---|---|---|
| 237990 | Other Heavy and Civil Engineering Construction | 18 |
| 237110 | Water and Sewer Line and Related Structures Construction | 14 |
| 238220 | Plumbing, Heating, and Air-Conditioning Contractors | 12 |
| 713990 | All Other Amusement and Recreation Industries | 10 |
| 236220 | Commercial and Institutional Building Construction | 9 |
| 237310 | Highway, Street, and Bridge Construction | 9 |
| 481211 | Nonscheduled Chartered Passenger Air Transportation | 6 |
| 561730 | Landscaping Services | 5 |
| 238210 | Electrical Contractors and Other Wiring Installation Contractors | 5 |
| 221320 | Sewage Treatment Facilities | 4 |
DOI contract spending by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $8.1 billion |
| FY2025 | $6.6 billion |
| FY2026 | $6.8 billion |
| FY2027 (so far) | $0 |
The federal fiscal year starts October 1, so FY2027 began October 1, 2026.
What DOI spends the most on
Industries with the most DOI contract dollars over the last three fiscal years:
| NAICS | Industry | Obligated |
|---|---|---|
| 236220 | Commercial and Institutional Building Construction | $2.2 billion |
| 237110 | Water and Sewer Line and Related Structures Construction | $1.8 billion |
| 237990 | Other Heavy and Civil Engineering Construction | $1.8 billion |
| 541512 | Computer Systems Design Services | $1.7 billion |
| 541519 | Other Computer Related Services | $1.6 billion |
| 541611 | Administrative Management and General Management Consulting Services | $1.2 billion |
| 115310 | Support Activities for Forestry | $797.7 million |
| 541511 | Custom Computer Programming Services | $721.9 million |
Small business contracts at DOI
About 55% of DOI's contract dollars over the last three fiscal years went to small businesses. The government-wide goal is 23%.
Dollars awarded under each kind of set-aside in the same period:
- Small business: $3.7 billion
- 8(a): $917.8 million
- Women-owned: $87.7 million
- Service-disabled veteran-owned: $82 million
- HUBZone: $43.2 million
Set-asides on DOI's open notices right now:
- No set-aside (full and open): 78
- Total small business set-aside: 76
- Indian small business economic enterprise: 7
- Service-disabled veteran-owned set-aside: 3
- Indian economic enterprise: 1
- Women-owned set-aside: 1
See which set-asides you may qualify for with the free SBA certification screener.
Who wins DOI contracts
Companies with the most DOI contract dollars over the last three fiscal years, per USAspending.gov:
| Company | Obligated |
|---|---|
| General Dynamics Information Technology, Inc. | $704.2 million |
| NW Construction, Inc | $454.2 million |
| Acacia Center for Justice | $387.6 million |
| Guidehouse Inc. | $367.2 million |
| Family Endeavors, Inc. | $346.5 million |
| Kiewit Infrastructure West Co. | $321.2 million |
| Tepa Ec, LLC | $299.9 million |
| Jacobs Project Management Co. | $271 million |
| CDM Constructors Inc | $270.1 million |
| Ames Federal Contracting Group LLC | $244.6 million |
Large primes subcontract part of their work to small businesses. Look up any small business's registration with the free CAGE code and UEI lookup.
Where DOI's open work is
By place of performance, the most open DOI contracts are in California, New Mexico and Nevada.
- California: 4 open
- New Mexico: 2 open
- Nevada: 2 open
- Minnesota: 2 open
- District of Columbia: 2 open
- Montana: 1 open
- South Dakota: 1 open
- Tennessee: 1 open
Frequently asked questions
How do I find DOI contract opportunities?
The Department of the Interior posts its contract opportunities on SAM.gov, the free official site. 166 are open right now. You can search them here by NAICS code, set-aside and state, and set up a free email alert for new ones.
How much does DOI spend on contracts?
The Department of the Interior obligated about $6.8 billion on contracts in fiscal year 2026, according to USAspending.gov. About 55% of its contract dollars over the last three fiscal years went to small businesses.
Who are DOI's biggest contractors?
Over the last three fiscal years, the companies with the most DOI contract dollars were General Dynamics Information Technology, Inc., NW Construction, Inc and Acacia Center for Justice, per USAspending.gov. Smaller firms often work as their subcontractors.
Who do I talk to about small business contracts at DOI?
Federal law requires every agency with buying power to have an Office of Small and Disadvantaged Business Utilization (OSDBU), sometimes called the Office of Small Business Programs. Its staff help small businesses understand what the agency buys and how. Free counseling is also available from APEX Accelerators.
Keep going
- Contracts from other agencies
- How to find government contracts
- How to research an agency on USAspending.gov
- Free help from APEX Accelerators
FedReady is an independent company, not affiliated with the Department of the Interior, SAM.gov or any government agency. Open-contract counts come from SAM.gov and update daily; spending figures come from USAspending.gov and cover contracts only.