Data / Nonprofits / Oklahoma / Duncan / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Duncan, OK: 10 registered with the IRS
10 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Duncan, OK, 10 of them 501(c)(3) charities; the 2 that report revenue took in $992,061. The largest by revenue: Jexal Foundation ($719,352), United Way of Stephens County Inc ($272,709).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Jexal Foundation | 501(c)(3) | 1991 | $719,352 | $16.8 million | 2025-12 |
| United Way of Stephens County Inc | 501(c)(3) | 1973 | $272,709 | $547,806 | 2025-06 |
| Harvey House Family Charitable Foundation | 501(c)(3) | 2010 | $1.9 million | 2025-12 | |
| Helen Marie Lewis Medical Research Foundation | 501(c)(3) | 1999 | $2.6 million | 2024-12 | |
| Joe & Jean Palmer Endowment Fund | 501(c)(3) | 2001 | $345,848 | 2026-02 | |
| Maurer Family Foundation | 501(c)(3) | 2011 | $884 | 2025-12 | |
| On the Chisholm Trail Association | 501(c)(3) | 1998 | $6.3 million | 2024-12 | |
| Tilley Foundation | 501(c)(3) | 2021 | $3.2 million | 2024-01 | |
| Tom and Phyllis Macasland Foundation | 501(c)(3) | 2006 | $105 | 2025-12 | |
| Von Hawks Rising Inc | 501(c)(3) | 2026 | $24,968 | 2025-12 |
Other causes in Duncan, OK
- Human services 13
- Education 12
- Religion-related 8
- Recreation and sports 7
- Community improvement and capacity building 7
- Arts, culture and humanities 6
- Health care 5
- Mental health and crisis intervention 4
- Environment 3
Every nonprofit in Duncan, OK · Philanthropy, voluntarism and grantmaking foundations 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.