Interior

Department of Interior

Manages federal lands, water resources, and natural resources. Buyer of environmental and GIS services.

FY2026 Budget

$18B+

land management, water resources, environmental conservation

OSDBU Contact

Office of Small Business Programs - OSBP@ios.doi.gov

2026 Trend

Wildfire prevention and response, water resource management, renewable energy on federal lands, wildlife conservation

Market Intelligence

Real-time spending data via USAspending.gov

Annual Spend (FY2025)

Total obligated amount for contract awards in the current fiscal year.

$0

Obligated to date

Budget UtilizationNaN%

Top Contract Awardees

$9.5B
$8.9B
$7.3B
$5.2B
$5.1B

WinBidIQ Insight: Department of Interior is showing high competition among the top 5 vendors. Small businesses should focus on subcontracting opportunities with these leaders or targeting niche set-asides where these giants are restricted.

How to Win Contracts from Department of Interior

As a major federal contracting entity, Department of Interior (Interior) commands a FY2026 budget of $18B+. Recent market intelligence indicates a highly active procurement cycle, with obligated spend distributed among 5 primary vendors.With a strategic focus on environmental and conservation expertise required and gis and geospatial technology skills valued, this agency presents targeted opportunities for contractors operating within critical NAICS codes like 541320 and 541611.

For emerging contractors, the most effective entry strategy is to identify recompete opportunities — contracts currently held by incumbents that are expiring within the next 12 to 18 months.Interior recompetes often have predictable scopes and defined evaluation criteria, making them significantly easier to bid intelligently than entirely new requirements.

Interior offers environmental and conservation opportunities. Good for GIS, environmental, and outdoor services firms. Lower contract volumes but specialized skills = less competition. Compliance moderate, environmental expertise critical.

Procurement Focus & Requirements

  • Environmental and conservation expertise required
  • GIS and geospatial technology skills valued
  • Multi-year research and monitoring contracts
  • Field operations and outdoor expertise important

Top NAICS Codes — Interior

These NAICS codes appear most frequently in Department of Interior solicitations. Include these in your SAM.gov registration to appear in agency searches and qualify for relevant set-asides.

541320

541611

237310

334512

562111

Common Recompete Categories at Interior

Recompetes — contracts currently held by an incumbent that are coming up for renewal — are the highest-probability opportunity for new entrants. These categories see recurring recompetes at Department of Interior:

1

Land and resource management services

2

GIS mapping and spatial analysis

3

Environmental assessment and monitoring

4

Conservation and restoration programs

Track live recompete opportunities in WinBidIQ

Department of Interior Contracting: FAQs

How much does Department of Interior spend on contracts annually?+
Department of Interior (Interior) has a FY2026 budget of $18B+ (land management, water resources, environmental conservation). Contract spending goes toward 5 primary NAICS code categories, with wildfire prevention and response, water resource management, renewable energy on federal lands, wildlife conservation. Small businesses compete for set-aside contracts across all major spending categories.
What NAICS codes does Interior use for small business contracts?+
Department of Interior most frequently awards contracts under NAICS codes 541320, 541611, 237310, 334512, 562111. These cover Environmental and conservation expertise required, GIS and geospatial technology skills valued, Multi-year research and monitoring contracts. Register in SAM.gov with these codes and ensure your size is within SBA size standards for each code to qualify for set-asides.
How do I contact Interior's small business office?+
Department of Interior's small business contact is: Office of Small Business Programs - OSBP@ios.doi.gov. This office — typically called the OSDBU or OSBP — runs small business outreach events, matchmaking sessions, and subcontracting fairs. Attending these events is one of the most effective ways to get pre-RFP visibility with contracting officers.
What types of contracts does Interior award to small businesses?+
Department of Interior awards set-aside contracts under multiple socioeconomic programs including small business, 8(a) Business Development, WOSB (Women-Owned Small Business), SDVOSB (Service-Disabled Veteran-Owned), and HUBZone. Common contract vehicles include Land and resource management services and GIS mapping and spatial analysis. Most contracts over $25K are posted on SAM.gov.
What is the best strategy to win a first Interior contract?+
Start by identifying recompete opportunities — contracts expiring within 12 months where the incumbent may be vulnerable. Department of Interior recompete categories include: Land and resource management services; GIS mapping and spatial analysis; Environmental assessment and monitoring. Build past performance through subcontracting first, then bid on small set-asides. Attend OSDBU outreach events to meet program managers before RFPs drop.
What is Interior's procurement trend for 2026?+
Wildfire prevention and response, water resource management, renewable energy on federal lands, wildlife conservation. Interior offers environmental and conservation opportunities. Good for GIS, environmental, and outdoor services firms. Lower contract volumes but specialized skills = less competition. Compliance moderate, environmental expertise critical. Monitor SAM.gov and USASpending.gov for emerging solicitations and forecast notices — ideally 6-12 months before RFP release.

Find Interior Contracts Matched to Your Company

WinBidIQ monitors SAM.gov daily and scores every Department of Interior solicitation by fit to your company profile — NAICS codes, certifications, size, and past performance.

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