Data / Nonprofits / Wyoming / Casper / Animal-related
Animal-related nonprofits in Casper, WY: 16 registered with the IRS
16 animal-related nonprofits are registered with the IRS in Casper, WY, 15 of them 501(c)(3) charities; the 2 that report revenue took in $1 million. The largest by revenue: Casper Humane Society ($1 million), Diamond Sage Grouse Foundation Inc ($2,479).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Casper Humane Society | 501(c)(3) | 1972 | $1 million | $5.2 million | 2025-12 |
| Diamond Sage Grouse Foundation Inc | 501(c)(3) | 2019 | $2,479 | $5,863 | 2025-12 |
| American Fisheries Society | 501(c)(3) | 1972 | $0 | $0 | 2026-07 |
| Apollo Foundation Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Central Wyoming Spay & Neuter Foundation | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Friscos Friends Ferret Rescue | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Grants House of Pits at Going Ranch | 501(c)(3) | 2014 | $0 | $0 | 2024-05 |
| Heros Legacy Rescue and Transport | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Kittens Without Mittens Rescue | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Paws2help | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Rescue Rangers | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Training Loving Companions | 501(c)(3) | 2025 | |||
| Wyoming Asc | 501(c)(3) | 2025 | |||
| Wyoming Association of County Preda Tory Animal Boards | 501(c)(5) | 2015 | $0 | $0 | 2025-12 |
| Wyoming Mustang Institute | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Wyoming Veterinary Technician Association | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
Other causes in Casper, WY
- Education 43
- Recreation and sports 40
- Philanthropy, voluntarism and grantmaking foundations 35
- Religion-related 32
- Arts, culture and humanities 31
- Human services 31
- Youth development 21
- Public and societal benefit 19
- Community improvement and capacity building 19
- Mental health and crisis intervention 17
- Housing and shelter 14
- Health care 12
- Food, agriculture and nutrition 12
- Environment 11
- Diseases, disorders and medical disciplines 9
- Public safety, disaster preparedness and relief 7
- Mutual and membership benefit 6
- Civil rights, social action and advocacy 5
- Crime and legal-related 5
- Science and technology 5
- Medical research 4
- Employment 4
Every nonprofit in Casper, WY · Animal-related 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.