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NAICS Code· 921150

NAICS 921150: American Indian and Alaska Native Tribal Governments

This industry comprises American Indian and Alaska Native governing bodies. Establishments in this industry perform legislative, judicial, and administrative functions for their American Indian and Alaska Native lands. Included in this industry are American Indian and Alaska Native councils, courts, and law enforcement bodies. Cross-References.Show more

NAICS 921150 – American Indian and Alaska Native Tribal Governments encompasses the administrative, operational, and service-delivery functions of federally recognized tribal governments exercising sovereign authority over their lands and populations. This NAICS code captures government contracting activity related to tribal self-governance, including public safety, health services, education, infrastructure development, environmental stewardship, and cultural preservation programs funded through federal grants and cooperative agreements.

1
Active Contracts
$224K
Total Obligations (12mo)
9
Awarded Contracts (12mo)
8
Contractors Awarded (12mo)
1
Median Bidders per Award
-29.4%
YoY Growth

Industry Spending Overview

Federal obligations, top contractors and agencies, and related industry codes for NAICS 921150.

AI Industry Description

NAICS 921150 – American Indian and Alaska Native Tribal Governments encompasses the administrative, operational, and service-delivery functions of federally recognized tribal governments exercising sovereign authority over their lands and populations. This NAICS code captures government contracting ...

NAICS 921150 – American Indian and Alaska Native Tribal Governments encompasses the administrative, operational, and service-delivery functions of federally recognized tribal governments exercising sovereign authority over their lands and populations. This NAICS code captures government contracting activity related to tribal self-governance, including public safety, health services, education, infrastructure development, environmental stewardship, and cultural preservation programs funded through federal grants and cooperative agreements. These tribal entities operate as distinct sovereign nations under federal law, often managing programs authorized by the Indian Self-Determination and Education Assistance Act and other statutes. Their contracting activities are integral to federal trust responsibilities and the broader landscape of government-to-government relationships, distinguishing them from state or local government procurement. No contractor data is available for this NAICS code, reflecting the unique structure of tribal governance, where most services are delivered directly by tribal governments or through tribally owned enterprises rather than traditional commercial contractors. While some third-party vendors may support IT, construction, or professional services, the primary actors are tribal entities themselves, with limited visibility in conventional contractor databases. No agency data is available, but funding typically originates from the Department of the Interior’s Bureau of Indian Affairs, the Department of Health and Human Services’ Indian Health Service, and the Department of Housing and Urban Development’s Office of Indian Housing. These agencies fulfill statutory obligations through grants and cooperative agreements, often with significant tribal discretion in implementation. The competitive landscape is characterized by limited commercial participation, with procurement opportunities concentrated in technical assistance, capacity building, and culturally aligned service delivery. Contractors seeking engagement must navigate tribal sovereignty, federal trust obligations, and often require direct partnerships with tribal leadership rather than traditional federal contracting channels.

Top Contractors

Companies with the highest total award value under NAICS 921150, ranked by dollars won.

Competition

How many companies historically bid on federal awards in NAICS 921150, from bidder counts reported on USAspending.

Usually Single-Bid

Half or more of reported awards drew exactly one bidder, usually a sign of incumbent-held work rather than an open field. · 555 reported awards

Median Bidders

1

Per reported award, all-time

Single-Bid Awards

93%

Share of reported awards with one bidder

10+ Bidder Awards

0%

Share of reported awards with 10+ bidders

Reported Awards

555

82% of 678 total awards

Bidder Count Distribution by Fiscal Year

Share of reported awards in each bidder-count bracket per federal fiscal year.

How this code compares up the NAICS hierarchy. Parent cohorts pool every code under their prefix, so they are the steadier baseline when a 6-digit sample is thin.

Industry FamilyCompetitionMedian BiddersSingle-BidBidder MixReported Awards
921150This Code
American Indian and Alaska Native Tribal Governments
Usually Single-Bid193%
55582% of 678
92115NAICS Industry
Usually Single-Bid193%
55582% of 678
9211Industry Group
Executive, Legislative, and Other General Government Support
Fewer Bidders246%
36,08194% of 38,573
921Subsector
Fewer Bidders246%
36,08194% of 38,573
92Sector
Public Administration
Usually Single-Bid167%
95,30291% of 104,947

Bidder counts reported on past federal awards in this NAICS (USAspending). An open opportunity has no bidders yet, so this is the historical norm for similar work, not a fact about this solicitation. Not all awards report bidder counts, and fewer bidders often means incumbent-held work rather than an easier win. Federal reporting of bidder counts fell from ~96% of awards (FY2016) to ~30% (FY2018 onward); the chart shows shares of reported awards, and washed-out stretches mark years with fewer than 30 of them.

Related NAICS Codes

Industries similar to American Indian and Alaska Native Tribal Governments, by shared sector, subsector, and industry group.

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NAICS 921150 FAQ

Frequently Asked Questions

NAICS code 921150 covers American Indian and Alaska Native Tribal Governments. This industry comprises American Indian and Alaska Native governing bodies. Establishments in this industry perform legislative, judicial, and administrative functions for their American Indian and Alaska Native lands. Included in this industry are American Indian and Alaska Native councils, courts, and law enforcement bodies. Cross-References.

Recently Posted in American Indian and Alaska Native Tribal Governments

NAICS: 921150
SLED
Tribal Land Acquisition Grant Program FY27-28 RFR
Solicitation # BD-27-1042-ENV-ENV01-134124
The Tribal Land Acquisition Grant Program for FY27-28, solicitation BD-27-1042-ENV-ENV01-134124, is an open market reimbursement program administered by the Massachusetts Executive Office of Energy and Environmental Affairs. The program provides financial assistance to Massachusetts tribal governments and collaborating qualified non-profits to acquire land in fee or purchase perpetual restrictions, such as Conservation, Agricultural Preservation, or Watershed Protection Restrictions. The primary goal is to restore tribal relationships to ancestral lands and revitalize cultural lifeways, requiring that acquired lands be maintained in perpetuity in a natural, scenic, open, or agricultural condition. Maximum grant awards are $500,000 for land or restriction purchases and $50,000 for due diligence costs associated with land gifts. Applications must be submitted via the Grants Management System by December 17, 2026, and must include a project budget, USGS topographic maps, a full narrative appraisal (or market analysis for properties under $350,000), and documentation of tribal government eligibility. Proposals are evaluated based on stewardship planning, project quality, biodiversity protection, climate resilience, letters of support, and optional financial matching contributions. The estimated period of performance runs from February 15, 2027, through June 30, 2028. Notably, tribal governments must agree to a limited waiver of sovereign immunity for the enforcement of grant terms and land restrictions. Reimbursements are based on the lesser of the final purchase price or appraised value, and expenses incurred prior to contract execution are ineligible.
ENV - Executive Office Groups

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