Data / Nonprofits / Colorado / Boulder / Animal-related
Animal-related nonprofits in Boulder, CO: 34 registered with the IRS
34 animal-related nonprofits are registered with the IRS in Boulder, CO, 31 of them 501(c)(3) charities; the 19 that report revenue took in $25.6 million. The largest by revenue: The Humane Society of Boulder Valley Inc ($8.5 million), Environment for the Americas Inc ($7 million), Colorado Pet Pantry ($4.2 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| The Humane Society of Boulder Valley Inc | 501(c)(3) | 1933 | $8.5 million | $20.1 million | 2025-12 |
| Environment for the Americas Inc | 501(c)(3) | 2008 | $7 million | $944,158 | 2024-12 |
| Colorado Pet Pantry | 501(c)(3) | 2012 | $4.2 million | $1.8 million | 2025-12 |
| Pet Sustainability Coalition | 501(c)(3) | 2020 | $1.8 million | $351,930 | 2025-12 |
| Greenwood Wildlife Rehabilitation Center | 501(c)(3) | 1993 | $1.7 million | $2.7 million | 2024-12 |
| Pro-Animal Future | 501(c)(4) | 2024 | $468,366 | $211,550 | 2024-12 |
| Project Animalaid | 501(c)(3) | 2009 | $379,185 | $640,591 | 2024-12 |
| Isla Animals | 501(c)(3) | 2010 | $230,078 | $312,216 | 2024-12 |
| Colorado Wildlife Federation Inc | 501(c)(3) | 1977 | $213,165 | $43,839 | 2025-12 |
| Brighter Days Dog Rescue | 501(c)(3) | 2017 | $190,413 | $36,959 | 2024-12 |
| Old Dogs New Digs | 501(c)(3) | 2016 | $163,800 | $151,862 | 2025-12 |
| Front Range Freedom Rescue Inc | 501(c)(3) | 2019 | $157,795 | $19,905 | 2023-12 |
| Animal Help Now | 501(c)(3) | 2010 | $154,347 | $22,343 | 2025-12 |
| Rocky Mountain French Bulldog Rescue | 501(c)(3) | 2017 | $136,345 | $1 | 2025-12 |
| Tails of Two Cities | 501(c)(3) | 2021 | $123,884 | $46,505 | 2025-12 |
| Lipizzan Heritage Institute | 501(c)(3) | 2025 | $106,563 | $91,844 | 2025-12 |
| International Institute for Astronautical Sciences Inc | 501(c)(3) | 2015 | $88,646 | $128,730 | 2025-12 |
| Timberline Basset Hound Club | 501(c)(4) | 2009 | $9,573 | $2,372 | 2026-03 |
| Friends of Switzerland Trail | 501(c)(3) | 2024 | $1,000 | $1,000 | 2024-12 |
| Animal Counsel Inc | 501(c)(3) | 2025 | $0 | $0 | 2026-03 |
| Best Pets Inc | 501(c)(3) | 2006 | $0 | $0 | 2024-12 |
| Boulder Bear Coalition | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Boulder Bird Banding Association | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Colorado Bear Coalition | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Colorado Farm Animal Sanctuary | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Foundation for African Resources | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Friends Interested in Dogs & Open Space Inc | 501(c)(4) | 2011 | $0 | $0 | 2025-12 |
| Pangje Foundation | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Polaris Alaskan Malamute Rescue Inc | 501(c)(3) | 2019 | $12,683 | 2024-12 | |
| Romos Rescue Fund | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Speaking of Animals Outreach | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Summit Dog Rescue | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| The Kubs Cubs Foundation | 501(c)(3) | 2026 | |||
| Wild at Heart | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
Other causes in Boulder, CO
- Education 183
- Arts, culture and humanities 169
- Philanthropy, voluntarism and grantmaking foundations 124
- Human services 102
- Religion-related 94
- Environment 69
- Recreation and sports 65
- International, foreign affairs and national security 53
- Community improvement and capacity building 47
- Health care 40
- Science and technology 33
- Youth development 27
- Mental health and crisis intervention 22
- Housing and shelter 18
- Public safety, disaster preparedness and relief 18
- Diseases, disorders and medical disciplines 18
- Public and societal benefit 17
- Civil rights, social action and advocacy 17
- Food, agriculture and nutrition 15
- Crime and legal-related 14
- Employment 11
- Medical research 11
- Mutual and membership benefit 6
- Social science 4
Every nonprofit in Boulder, CO · 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.