Data / Nonprofits / District of Columbia / Washington / Animal-related
Animal-related nonprofits in Washington, DC: 66 registered with the IRS
66 animal-related nonprofits are registered with the IRS in Washington, DC, 60 of them 501(c)(3) charities; the 46 that report revenue took in $1.11 billion. The largest by revenue: National Fish and Wildlife Foundation ($584.2 million), Humane World for Animals Inc ($216.5 million), Defenders of Wildlife ($48.6 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| National Fish and Wildlife Foundation | 501(c)(3) | 1986 | $584.2 million | $3.56 billion | 2025-09 |
| Humane World for Animals Inc | 501(c)(3) | 1956 | $216.5 million | $543.2 million | 2025-12 |
| Defenders of Wildlife | 501(c)(3) | 1948 | $48.6 million | $65.5 million | 2025-09 |
| African Wildlife Foundation | 501(c)(3) | 1962 | $37.3 million | $54.8 million | 2025-06 |
| American Humane Association | 501(c)(3) | 1942 | $36.6 million | $46.2 million | 2025-06 |
| Humane World for Animals International | 501(c)(3) | 1993 | $35.1 million | $5.7 million | 2024-12 |
| Jane Goodall Institute for Wildlife Research Education & Conservation | 501(c)(3) | 1978 | $30.6 million | $22.6 million | 2024-12 |
| Washington Humane Society the Society for the Prevention of | 501(c)(3) | 1937 | $22.6 million | $43.1 million | 2025-09 |
| Frankfurt Zoological Society Us Inc | 501(c)(3) | 2008 | $13.5 million | $9.1 million | 2025-12 |
| Theodore Roosevelt Conservation Partnership Inc | 501(c)(3) | 2003 | $11.5 million | $9.6 million | 2025-12 |
| Resolve Inc | 501(c)(3) | 1994 | $9.1 million | $12.5 million | 2025-06 |
| Conservation X Labs Inc | 501(c)(3) | 2015 | $9.1 million | $4.6 million | 2024-12 |
| Humane World Actin Fund | 501(c)(4) | 2005 | $6.4 million | $12.4 million | 2025-12 |
| Animal Welfare Institute | 501(c)(3) | 1953 | $6.2 million | $27.5 million | 2025-06 |
| The White Coat Waste Project Inc | 501(c)(3) | 2013 | $5.9 million | $4.6 million | 2024-12 |
| The Wilderness Project Foundation | 501(c)(3) | 2019 | $5.7 million | $3 million | 2025-12 |
| Green America | 501(c)(3) | 1991 | $5.2 million | $15.7 million | 2025-03 |
| Animal & Vegan Advocacy International Inc | 501(c)(3) | 2024 | $2.6 million | $1.4 million | 2024-12 |
| Wildlife Guardians | 501(c)(3) | 2012 | $2.5 million | $7.4 million | 2024-12 |
| Whale Sanctuary Project | 501(c)(3) | 2016 | $2.3 million | $2.4 million | 2024-12 |
| The Nonhuman Rights Project Inc | 501(c)(3) | 1996 | $2.1 million | $4.3 million | 2025-12 |
| Human Animal Bond Research Foundation | 501(c)(3) | 2011 | $1.6 million | $1.4 million | 2024-12 |
| Animal Rescue Corps Inc | 501(c)(3) | 2011 | $1.3 million | $1 million | 2024-12 |
| City Dogs Rescue | 501(c)(3) | 2012 | $1.2 million | $2.3 million | 2024-12 |
| National Wildlife Refuge Association | 501(c)(3) | 1975 | $1.2 million | $477,772 | 2025-06 |
| The Humane Society Wildlife Land Trust | 501(c)(3) | 1993 | $1.1 million | $21.9 million | 2025-12 |
| Conservation Nation | 501(c)(3) | 1972 | $989,290 | $4.9 million | 2025-12 |
| Food Animal Concerns Trust | 501(c)(3) | 1982 | $901,531 | $1.2 million | 2025-06 |
| Endangered Species Coalition | 501(c)(3) | 2002 | $891,294 | $355,374 | 2024-12 |
| Americas Wildlife Association for Resource Education Aware | 501(c)(3) | 1978 | $682,378 | $569,169 | 2024-12 |
| Alkylphenols & Ethoxylates Research Council Inc | 501(c)(6) | 1999 | $460,660 | $280,721 | 2025-12 |
| Bonobo Conservation Initiative | 501(c)(3) | 1999 | $414,584 | $99,311 | 2024-12 |
| Elephantvoices | 501(c)(3) | 2009 | $380,732 | $1.1 million | 2025-12 |
| Life Long Paws Foundation | 501(c)(3) | 2024 | $223,804 | $52,806 | 2025-12 |
| National Turkey Federation Foundation | 501(c)(3) | 2019 | $214,014 | $4 million | 2026-06 |
| Lailas Legacy Animal Rescue Inc | 501(c)(3) | 2023 | $190,640 | $3,398 | 2024-12 |
| DC Voters for Animals Education Fund | 501(c)(3) | 2022 | $168,785 | $1 | 2025-12 |
| Friends of CSWCT | 501(c)(3) | 2010 | $152,977 | $92,212 | 2025-12 |
| Center for Conservation Peacebuilding | 501(c)(3) | 2017 | $119,533 | $206,412 | 2024-12 |
| American Bird Conservancy Action Fund | 501(c)(4) | 2023 | $116,472 | $141,336 | 2025-12 |
| Smarter Health Care Coalition | 501(c)(4) | 2023 | $112,500 | $22,200 | 2025-12 |
| Tail Wags & Book Bags | 501(c)(3) | 2014 | $106,439 | $26,523 | 2024-12 |
| East Coast Corgi Rescue | 501(c)(3) | 2017 | $35,850 | $98,519 | 2025-12 |
| American Veterinary Medical Law Association | 501(c)(3) | 1996 | $18,050 | $1,677 | 2024-12 |
| Defenders of Wildlife Action Fund | 501(c)(4) | 2017 | $1,316 | $267,483 | 2025-09 |
| Alliance for Stray Animals and People | 501(c)(3) | 1999 | $0 | $0 | 2025-05 |
| American Association for Zoological Nomenclature | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| American Institute of Fishery Research Biologists | 501(c)(3) | 2001 | $0 | $0 | 2026-08 |
| Beowulf House | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Canine Freestyle Federation Inc | 501(c)(3) | 1999 | $0 | $0 | 2025-12 |
| DC Voters for Animals Inc | 501(c)(4) | 2022 | $0 | $0 | 2025-12 |
| Fairer Fields Inc | 501(c)(3) | 2026 | |||
| Feline Urban Rescue Inc | 501(c)(3) | 1996 | $0 | $0 | 2024-12 |
| Friends of DC Animals | 501(c)(3) | 2024 | $0 | $0 | 2025-09 |
| Friends of Wef | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Global Dog Rescue | 501(c)(3) | 2026 | |||
| Hisa Equine Recovery Foundation | 501(c)(3) | 2026 | |||
| Humanitarian-Development- Economic Initiative | 501(c)(3) | 2026 | |||
| Khloes Second Chance | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Kingsman Bark Inc | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Lemur Conservation Network Inc | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Newark Street Park K-9 Friends | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Potomac Highlands Beekeepers Association | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Tucker WRLD | 501(c)(3) | 2024 | |||
| Wildlife Investigators Training Alliance Inc | 501(c)(3) | 2020 | $0 | $0 | 2023-12 |
| Safari Club International Foundation | 501(c)(3) | 1975 | $-12,130 | $36,182 | 2024-12 |
Other causes in Washington, DC
- Education 1,497
- Arts, culture and humanities 948
- Community improvement and capacity building 942
- Human services 892
- International, foreign affairs and national security 782
- Religion-related 602
- Philanthropy, voluntarism and grantmaking foundations 522
- Public and societal benefit 478
- Civil rights, social action and advocacy 468
- Environment 372
- Health care 367
- Youth development 322
- Recreation and sports 282
- Crime and legal-related 190
- Employment 178
- Housing and shelter 168
- Science and technology 163
- Mental health and crisis intervention 136
- Mutual and membership benefit 118
- Social science 116
- Diseases, disorders and medical disciplines 106
- Food, agriculture and nutrition 103
- Medical research 80
- Public safety, disaster preparedness and relief 75
Every nonprofit in Washington, DC · 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.