Data / Nonprofits / Wyoming / Rock Springs / Philanthropy, voluntarism and grantmaking foundations
Philanthropy, voluntarism and grantmaking foundations nonprofits in Rock Springs, WY: 10 registered with the IRS
10 philanthropy, voluntarism and grantmaking foundations nonprofits are registered with the IRS in Rock Springs, WY, 10 of them 501(c)(3) charities; the 3 that report revenue took in $1.4 million. The largest by revenue: United Way of Southwest Wyoming ($916,474), Memorial Hospital of Sweetwater County Foundation ($471,589), Southwest Wyoming Manufacturing Partners ($26,081).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| United Way of Southwest Wyoming | 501(c)(3) | 1977 | $916,474 | $3.7 million | 2025-06 |
| Memorial Hospital of Sweetwater County Foundation | 501(c)(3) | 2006 | $471,589 | $4.3 million | 2025-06 |
| Southwest Wyoming Manufacturing Partners | 501(c)(3) | 2024 | $26,081 | $18,415 | 2025-12 |
| 307 Industrial Alliance Inc | 501(c)(3) | 2026 | |||
| Arlene Wesswick Foundation | 501(c)(3) | 1998 | $447,967 | 2024-12 | |
| Charlie Mike Foundation | 501(c)(3) | 2019 | $0 | $0 | 2024-12 |
| Garys Foundation | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Pearson Boye Memorial Fund | 501(c)(3) | 2003 | $483,688 | 2024-12 | |
| Rock Springs Community Chest | 501(c)(3) | 1998 | $44,797 | 2025-12 | |
| Sweetwater County Emergency Management Foundation | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
Other causes in Rock Springs, WY
- Education 22
- Recreation and sports 21
- Youth development 10
- Human services 9
- Religion-related 8
- Health care 7
- Arts, culture and humanities 5
- Community improvement and capacity building 4
- Mental health and crisis intervention 3
- Food, agriculture and nutrition 3
- Public and societal benefit 3
- Employment 3
- Animal-related 3
Every nonprofit in Rock Springs, WY · 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.