Data / Nonprofits / Oklahoma / Oklahoma City / Mutual and membership benefit
Mutual and membership benefit nonprofits in Oklahoma City, OK: 26 registered with the IRS
26 mutual and membership benefit nonprofits are registered with the IRS in Oklahoma City, OK, 4 of them 501(c)(3) charities; the 11 that report revenue took in $121.3 million. The largest by revenue: Oklahoma City Other Post Employment Benefits Trust ($36.4 million), Oklahoma City Firefighters Health and Welfare Trust Veba ($32.3 million), CN Enterprises Health Plan Trust ($21.2 million).
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Every organization, largest by revenue first
Other causes in Oklahoma City, OK
- Religion-related 344
- Education 269
- Human services 266
- Food, agriculture and nutrition 262
- Philanthropy, voluntarism and grantmaking foundations 221
- Arts, culture and humanities 193
- Community improvement and capacity building 167
- Recreation and sports 107
- Health care 104
- Youth development 91
- Mental health and crisis intervention 69
- Public and societal benefit 66
- Animal-related 65
- Crime and legal-related 46
- Environment 36
- Housing and shelter 35
- Employment 34
- Civil rights, social action and advocacy 31
- Public safety, disaster preparedness and relief 27
- International, foreign affairs and national security 24
- Diseases, disorders and medical disciplines 20
- Medical research 15
- Science and technology 11
Every nonprofit in Oklahoma City, OK · Mutual and membership benefit nonprofits across the state · Nonprofits in every city of the state
Read from the IRS Exempt Organizations Business Master File, updated by the IRS on October 24, 2026 and rebuilt here every morning. Revenue and assets are from each organization's latest filing as the IRS lists it; the IRS record is the official one. Organizations only: no people are named on these pages.