Tohono O'odham Nation

Tohono O'odham Nation, a federally recognized tribal government based in Sells, Arizona, operates as a federal grant recipient (96% of recent awards) and contract prime, delivering solid waste collection and disposal services, child care and family support programs, workforce development services, environmental remediation and water quality monitoring, and public health and substance abuse prevention initiatives across 56 federal customer agencies. The Nation does not compete under SBA set-aside categories; its awards originate from tribal-preference contracting vehicles and formula grants reserved for federally recognized tribes.

The Nation's contract footprint centers on concrete infrastructure services. Recent contract work includes a $133.7 thousand firm-fixed-price purchase order from the Bureau of Indian Education for solid waste collection at San Simon School in Sells, Arizona (effective April 1, 2026 through March 31, 2031), a $123.3 thousand purchase order for weekly solid waste collection at Tohono O'odham High School in Sells (September 1, 2025 through August 31, 2030), a $135.2 thousand purchase order from the Bureau of Indian Education for solid waste services at Santa Rosa Day School (July 15, 2024 through July 14, 2029), and a $180.8 thousand Customs and Border Protection purchase order for solid waste disposal at U.S. Border Patrol Tucson Sector locations on the Nation's reservation (April 3, 2024 through March 31, 2029). Additional contract awards cover tribal employment rights office (TERO) services to the Equal Employment Opportunity Commission ($32 thousand annually) and general facility solid waste services to Interior regional offices.

The Nation's grant portfolio spans health, human services, environmental, and community development programs. Top grantor agencies by award count include the Department of Health and Human Services Administration for Children and Families (40 awards), the Department of Agriculture Food and Nutrition Service (23 awards), and the Environmental Protection Agency (22 awards). Representative grant work includes a $750 thousand project grant from the Department of Justice Office on Violence Against Women for Special Domestic Violence Criminal Jurisdiction implementation (October 1, 2025 through September 30, 2028), a $5.44 million Child Care and Development Block Grant from the Department of Health and Human Services Office of Child Care (October 1, 2025 through September 30, 2028), a $495.8 thousand project grant from the Department of Agriculture Food and Nutrition Service for Food Distribution Program on Indian Reservations administration (October 1, 2025 through September 30, 2027), a $554.1 thousand cooperative agreement from the U.S. Army Corps of Engineers for Native American Lands Environmental Mitigation Program environmental remediation (September 29, 2025 through January 21, 2028), and a $1.33 million Federal Emergency Management Agency project grant for emergency operations center development (September 1, 2024 through August 31, 2027). The Nation also administers recurring formula grants for child welfare services, family violence prevention, food assistance nutrition education, water quality monitoring, brownfields remediation, historic preservation through its Tribal Historic Preservation Office, library services, vocational rehabilitation, and opioid response programming, with five-year cooperative agreements supporting diabetes prevention and air quality mitigation projects.

Recent activity has remained flat—17 to 19 awards annually over the past four years—with 25 awards (combined potential value $183 thousand) completing within the next twenty-four months. The Nation acts as a sub-recipient on workforce development sub-awards from the Arizona Department of Economic Security under Workforce Innovation and Opportunity Act (WIOA) programs for adult employment, dislocated worker services, and youth job training, and on a public health emergency preparedness sub-award from the Arizona Department of Health Services. Contract awards carry no set-aside designation; the Nation's contracting authority derives from Buy Indian Act preference and tribal-specific procurement vehicles. Solid waste collection represents the largest single capability category (39 awards), followed by human rights and social services organizations (19 awards); the majority of awards are small firm-fixed-price purchases under $200 thousand with multi-year option periods.