Data / Nonprofits / California / Riverside / Animal-related
Animal-related nonprofits in Riverside, CA: 33 registered with the IRS
33 animal-related nonprofits are registered with the IRS in Riverside, CA, 31 of them 501(c)(3) charities; the 13 that report revenue took in $9.3 million. The largest by revenue: Riverside Humane Society Pet Adoption Center ($4.3 million), Donkeyland ($3.1 million), Foster Army Animal Rescue ($559,474).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Riverside Humane Society Pet Adoption Center | 501(c)(3) | 1943 | $4.3 million | $4.3 million | 2024-12 |
| Donkeyland | 501(c)(3) | 2011 | $3.1 million | $12.6 million | 2024-12 |
| Foster Army Animal Rescue | 501(c)(3) | 2016 | $559,474 | $566,095 | 2025-12 |
| Life Source Training Institute Inc | 501(c)(3) | 2012 | $366,890 | $81,889 | 2024-12 |
| West Coast Labrador Retriever Rescue | 501(c)(3) | 2019 | $233,407 | $146,679 | 2024-12 |
| Underdog Heroes Inc | 501(c)(3) | 2020 | $214,681 | $258,095 | 2025-12 |
| Room 8 Memorial Cat Foundation | 501(c)(3) | 1974 | $174,641 | $585,724 | 2025-12 |
| One Mutt at A Time Rescue Foundation | 501(c)(3) | 2022 | $137,186 | $2,404 | 2024-12 |
| True Innocents Equine Rescue | 501(c)(3) | 1999 | $105,512 | $333,841 | 2026-06 |
| All Things Hooved Animal Rescue | 501(c)(3) | 2020 | $63,536 | $22,813 | 2025-12 |
| Act 2 Rescue | 501(c)(3) | 2022 | $61,731 | $5,783 | 2024-12 |
| Sunshine S Haven | 501(c)(3) | 2010 | $44,522 | $85,081 | 2024-12 |
| Tips & Whiskers | 501(c)(3) | 2023 | $37,800 | $2,687 | 2024-12 |
| 2 Crue Rescue Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Apex Shepherd Rescue | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Aum Angels United With Minis | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Cal-State Pony of the Americas Inc | 501(c)(5) | 2011 | $0 | $0 | 2025-03 |
| Chris John Vaughan Foundation | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Fishlinger Family Foundation Inc | 501(c)(3) | 2022 | $560,902 | 2025-12 | |
| Fridas Animal Sanctuary | 501(c)(3) | 2026 | |||
| Furever Pawz Rescue | 501(c)(3) | 2016 | $0 | $0 | 2024-12 |
| Give Paws A Chance | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Guardian Spca | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Heart and Whiskers Feline Rescue Inc | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Katy Cat Lady Rescue | 501(c)(3) | 2025 | |||
| Noble Critters Inc | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Orange Coast Boxer Club | 501(c)(7) | 2014 | $0 | $0 | 2025-12 |
| Paw Protectors | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Precious Purrs Feline Rescue | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Trap Neuter Return Riverside | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Trinity Therapeutic Riding Center Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| West Coast Gatos | 501(c)(3) | 2026 | |||
| Yeager Co Animal Liberation Resue | 501(c)(3) | 2025 |
Other causes in Riverside, CA
- Religion-related 285
- Human services 173
- Education 160
- Recreation and sports 94
- Arts, culture and humanities 80
- Community improvement and capacity building 56
- Philanthropy, voluntarism and grantmaking foundations 53
- Mental health and crisis intervention 43
- Health care 37
- Youth development 34
- Housing and shelter 32
- Public and societal benefit 32
- Crime and legal-related 22
- Environment 21
- International, foreign affairs and national security 20
- Employment 17
- Food, agriculture and nutrition 10
- Mutual and membership benefit 9
- Public safety, disaster preparedness and relief 8
- Civil rights, social action and advocacy 7
- Medical research 6
- Science and technology 4
Every nonprofit in Riverside, CA · 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.