Data / Nonprofits / Iowa / Knoxville / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Knoxville, IA: 4 registered with the IRS
4 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Knoxville, IA, 4 of them 501(c)(3) charities; the 1 that report revenue took in $65 million. The largest by revenue: Knoxville Area Community Hospital Foundation ($65 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Knoxville Area Community Hospital Foundation | 501(c)(3) | 2004 | $65 million | $67.2 million | 2025-06 |
| Marion County United Way | 501(c)(3) | 1971 | $0 | $0 | 2025-12 |
| Red Rock Environmental Education Fund | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Weiler Foundation | 501(c)(3) | 2009 | $25.3 million | 2025-12 |
Other causes in Knoxville, IA
- Recreation and sports 11
- Education 11
- Arts, culture and humanities 8
- Public and societal benefit 4
- Animal-related 4
- Community improvement and capacity building 4
- Youth development 4
- Human services 4
- Religion-related 3
- Public safety, disaster preparedness and relief 3
Every nonprofit in Knoxville, IA · 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.