Data / Nonprofits / Missouri / Saint Charles / Animal-related
Animal-related nonprofits in Saint Charles, MO: 12 registered with the IRS
12 animal-related nonprofits are registered with the IRS in Saint Charles, MO, 11 of them 501(c)(3) charities; the 3 that report revenue took in $7.1 million. The largest by revenue: Dogs On Duty ($5.4 million), Five Acres Animal Shelter ($1.6 million), Mastino Rescue ($64,767).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Dogs On Duty | 501(c)(3) | 2014 | $5.4 million | $1.2 million | 2025-12 |
| Five Acres Animal Shelter | 501(c)(3) | 2003 | $1.6 million | $3.3 million | 2024-12 |
| Mastino Rescue | 501(c)(3) | 2018 | $64,767 | $26,593 | 2024-12 |
| American Puppy Foundation | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Angels for Animals | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Canine Search and Rescue Association | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Cat Zen Feline Society Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| German Shepherd Dog Club of St Louis Inc | 501(c)(4) | 2012 | $0 | $0 | 2025-12 |
| Lucky K9 Rescue Inc | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Purebred Dog Rescue of St Louis | 501(c)(3) | 1986 | $0 | $0 | 2025-12 |
| Seven More Cats Rescue | 501(c)(3) | 2015 | $0 | $0 | 2025-08 |
| Working Dog Initiative | 501(c)(3) | 2026 |
Other causes in Saint Charles, MO
- Religion-related 60
- Human services 53
- Recreation and sports 48
- Education 43
- Arts, culture and humanities 37
- Philanthropy, voluntarism and grantmaking foundations 33
- Youth development 16
- Health care 15
- Community improvement and capacity building 15
- Mental health and crisis intervention 12
- Public and societal benefit 11
- Housing and shelter 8
- Food, agriculture and nutrition 7
- Employment 6
- Environment 5
- Diseases, disorders and medical disciplines 5
- International, foreign affairs and national security 5
- Public safety, disaster preparedness and relief 4
- Mutual and membership benefit 4
- Civil rights, social action and advocacy 4
- Medical research 3
Every nonprofit in Saint Charles, MO · 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.