Largest nonprofits in Oklahoma by revenue
| # | Nonprofit | City | Focus area | Revenue |
|---|---|---|---|---|
| 1 | Saint Francis Hospital Inc | Tulsa | Health Care | $2.0 billion |
| 2 | Integris Baptist Medical Center Inc | Oklahoma City | Health Care | $1.4 billion |
| 3 | Mercy Hospital Oklahoma City Inc | Oklahoma City | Health Care | $948.2 million |
| 4 | St John Medical Center Inc | Tulsa | Health Care | $640.7 million |
| 5 | George Kaiser Family Foundation | Tulsa | Philanthropy, Voluntarism & Grantmaking Foundations | $549.7 million |
| 6 | Integris Health Inc | Oklahoma | Health Care | $483.8 million |
| 7 | Oklahoma City Community Foundation Inc | Oklahoma City | Philanthropy, Voluntarism & Grantmaking Foundations | $387.3 million |
| 8 | Feed The Children Inc | Oklahoma City | International, Foreign Affairs & National Security | $386.4 million |
| 9 | Integris South Oklahoma City Hospital Corporation | Oklahoma City | Health Care | $358.5 million |
| 10 | Integris Rural Health Inc | Oklahoma City | Health Care | $344.4 million |
| 11 | Integris Ambulatory Care Corporation | Oklahoma City | Health Care | $339.7 million |
| 12 | University Of Tulsa | Tulsa | Education | $339.4 million |
| 13 | Tulsa Community Foundation | Tulsa | Philanthropy, Voluntarism & Grantmaking Foundations | $297.9 million |
| 14 | Oklahoma State University Foundation | Stillwater | Education | $272.9 million |
| 15 | Community Strategies Inc | Oklahoma City | Public & Societal Benefit | $257.1 million |
| 16 | Warren Clinic Inc | Tulsa | Health Care | $238.5 million |
| 17 | Saint Francis Hospital South Llc | Tulsa | Health Care | $234.4 million |
| 18 | Saint Francis Hospital Muskogee Inc | Tulsa | Health Care | $233.6 million |
| 19 | Mercy Hospital Ardmore Inc | Ardmore | Health Care | $227.3 million |
| 20 | Duncan Regional Hospital Inc | Duncan | Health Care | $225.7 million |
| 21 | Grand Lake Mental Health Center Inc | Nowata | Mental Health & Crisis Intervention | $225.4 million |
| 22 | Oral Roberts University | Tulsa | Education | $197.5 million |
| 23 | St John Health System Inc | Tulsa | Health Care | $173.2 million |
| 24 | Integris Health Edmond Inc | Oklahoma City | Health Care | $170.6 million |
| 25 | Family & Childrens Service Inc | Tulsa | Human Services | $156.7 million |
The full list includes all 988 Oklahoma nonprofits with $1M+ revenue, with street address, ZIP, EIN, assets, income and tax period, plus every other state.
Oklahoma cities with the most $1M+ nonprofits
- Oklahoma City: 269
- Tulsa: 253
- Edmond: 45
- Norman: 31
- Ardmore: 23
- Stillwater: 22
- Bartlesville: 20
- Shawnee: 16
- Broken Arrow: 14
- Enid: 13
Most common focus areas
- Human Services: 177
- Education: 148
- Health Care: 97
- Arts, Culture & Humanities: 54
- Philanthropy, Voluntarism & Grantmaking Foundations: 46
- Religion-Related: 45
- Mental Health & Crisis Intervention: 34
- Housing & Shelter: 33
Where does this data come from?
The IRS Exempt Organizations Business Master File, downloaded in October 2026. Figures are as reported on each organization's latest return on file with the IRS. Personal contact names are not included.