Data / Nonprofits / Wisconsin / Milwaukee / Animal-related
Animal-related nonprofits in Milwaukee, WI: 34 registered with the IRS
34 animal-related nonprofits are registered with the IRS in Milwaukee, WI, 34 of them 501(c)(3) charities; the 14 that report revenue took in $36.8 million. The largest by revenue: Wisconsin Humane Society ($18.3 million), Zoological Society of Milwaukee County ($14.1 million), Zoological Society of Milwaukee County Endowment Trust ($1 million).
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Every organization, largest by revenue first
Other causes in Milwaukee, WI
- Religion-related 481
- Human services 400
- Education 349
- Philanthropy, voluntarism and grantmaking foundations 307
- Arts, culture and humanities 228
- Community improvement and capacity building 221
- Health care 118
- Recreation and sports 116
- Youth development 109
- Housing and shelter 96
- Crime and legal-related 55
- Public safety, disaster preparedness and relief 51
- Mental health and crisis intervention 49
- Environment 49
- Public and societal benefit 48
- Mutual and membership benefit 43
- Employment 43
- Diseases, disorders and medical disciplines 41
- Civil rights, social action and advocacy 37
- Food, agriculture and nutrition 27
- International, foreign affairs and national security 23
- Medical research 18
- Science and technology 7
- Social science 3
Every nonprofit in Milwaukee, WI · 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.