Data / Nonprofits / Maryland / Baltimore / Animal-related
Animal-related nonprofits in Baltimore, MD: 46 registered with the IRS
46 animal-related nonprofits are registered with the IRS in Baltimore, MD, 46 of them 501(c)(3) charities; the 20 that report revenue took in $94.3 million. The largest by revenue: National Aquarium Inc ($54.4 million), The Maryland Zoological Society Inc ($25 million), Maryland Spca Inc ($8.2 million).
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Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| National Aquarium Inc | 501(c)(3) | 1979 | $54.4 million | $92.1 million | 2025-12 |
| The Maryland Zoological Society Inc | 501(c)(3) | 1974 | $25 million | $81.6 million | 2025-06 |
| Maryland Spca Inc | 501(c)(3) | 1939 | $8.2 million | $42.5 million | 2025-12 |
| National Aquarium Foundation Inc | 501(c)(3) | 1983 | $2.7 million | $36.5 million | 2025-12 |
| Companions and Animals for Reform and Equity Inc | 501(c)(3) | 2020 | $1.1 million | $4.5 million | 2024-12 |
| Show Your Soft Side Inc | 501(c)(3) | 2013 | $587,135 | $368,355 | 2024-12 |
| Native America Humane Society | 501(c)(3) | 2014 | $442,262 | $174,116 | 2025-12 |
| Animal Allies Rescue Foundation Inc | 501(c)(3) | 2013 | $325,708 | $321,626 | 2025-12 |
| City Ranch Inc | 501(c)(3) | 2018 | $290,937 | $161,391 | 2025-03 |
| Animal Miracles Inc | 501(c)(3) | 2023 | $236,260 | $23,519 | 2025-12 |
| Maryland Ornithological Society Inc | 501(c)(3) | 2011 | $179,449 | $3.8 million | 2025-04 |
| Pets On Wheels Inc | 501(c)(3) | 1990 | $162,752 | $246,957 | 2024-09 |
| Adopt A Homeless Animal Rescue Inc | 501(c)(3) | 2009 | $155,177 | $74,383 | 2024-12 |
| All Shepherd Rescue of the United States Inc | 501(c)(3) | 2010 | $145,940 | $178,854 | 2024-12 |
| Cat Rescue of Maryland Inc | 501(c)(3) | 1993 | $143,461 | $48,188 | 2024-12 |
| African Fund for Endangered Wildlife Inc | 501(c)(3) | 1979 | $93,764 | $39,510 | 2025-12 |
| Meru Animal Welfare Organization USA Incorporated | 501(c)(3) | 2022 | $90,313 | $50,816 | 2025-12 |
| Greyhound Pet Adoption Maryland Inc | 501(c)(3) | 1998 | $44,523 | $117,222 | 2024-12 |
| House Rabbit Society Baltimore - DC Chapter Inc | 501(c)(3) | 1998 | $30,035 | $92,191 | 2024-12 |
| 2124 Maryland Avenue Project | 501(c)(3) | 2026 | |||
| Alternative Congress Trust Inc | 501(c)(3) | 2001 | $0 | $503,229 | 2025-06 |
| Angel Wings Sanctuary | 501(c)(3) | 2025 | $0 | $725 | 2025-12 |
| Animal Alliance of the Americas Inc | 501(c)(3) | 2023 | $0 | $1 | 2024-12 |
| Ardens Arc Inc | 501(c)(3) | 2003 | $0 | $0 | 2024-12 |
| Baltimore Critter Society Inc | 501(c)(3) | 2026 | |||
| Bengal Rescue Network Corperation | 501(c)(3) | 2008 | $0 | $0 | 2024-12 |
| Callie Cat Adoptions Inc | 501(c)(3) | 1991 | $0 | $0 | 2025-12 |
| Centromar Inc | 501(c)(3) | 2026 | |||
| Chaos To the Rescue | 501(c)(3) | 2024 | $0 | $0 | 2025-11 |
| Charm City Companions Inc | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Community Cats MD Inc | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Dogs Finding Dogs Inc | 501(c)(3) | 2010 | $0 | $0 | 2025-07 |
| Harmonic Ventures Inc | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Hearts With Paws Inc | 501(c)(3) | 2022 | $3,810 | 2023-12 | |
| Humbled Hearts Farm Sanctuary | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Kuddles & Kisses K-9 Rescue | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Maryland Ornithological Society Inc | 501(c)(3) | 2011 | $0 | $0 | 2026-04 |
| Mittens To the Rescue Inc | 501(c)(3) | 2026 | |||
| Nail of Reconciliation | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Needs Must Cats Inc | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Safe at Last Inc | 501(c)(3) | 1998 | |||
| Smitten Kitten Animal Rescue Inc | 501(c)(3) | 2024 | |||
| Stop Killing Dogs Inc | 501(c)(3) | 2005 | $0 | $0 | 2025-06 |
| The Glamour Barn Sanctuary | 501(c)(3) | 2026 | |||
| The Helene K Miller Family Foundation Inc | 501(c)(3) | 1996 | $265,062 | 2026-06 | |
| Outcats and Underdogs | 501(c)(3) | 2024 | $-475 | $2,500 | 2025-12 |
Other causes in Baltimore, MD
- Religion-related 842
- Human services 622
- Education 492
- Community improvement and capacity building 398
- Arts, culture and humanities 364
- Philanthropy, voluntarism and grantmaking foundations 304
- Youth development 222
- Health care 202
- Housing and shelter 186
- Mental health and crisis intervention 149
- Recreation and sports 125
- International, foreign affairs and national security 68
- Crime and legal-related 61
- Employment 57
- Public and societal benefit 57
- Civil rights, social action and advocacy 54
- Environment 52
- Food, agriculture and nutrition 50
- Diseases, disorders and medical disciplines 41
- Science and technology 23
- Public safety, disaster preparedness and relief 22
- Mutual and membership benefit 21
- Medical research 18
- Social science 13
Every nonprofit in Baltimore, MD · 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.