Data / Nonprofits / Wisconsin / Hudson / Environment
Environment nonprofits in Hudson, WI: 8 registered with the IRS
8 environment nonprofits are registered with the IRS in Hudson, WI, 8 of them 501(c)(3) charities; the 2 that report revenue took in $509,285. The largest by revenue: Friends of Willow River and Kinnickinnic State Parks Inc ($409,022), River Valley Trails Inc ($100,263).
SpecStream is the live web data engine for teams and agents. It reads the IRS register of exempt organizations as the IRS updates it, and this page is that reading. Ask for the nonprofits you need by place, cause and size, with their latest Form 990 figures and websites, and they arrive in your sheet, CRM, Slack or agent.
Every organization, largest by revenue first
| Organization | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|
| Friends of Willow River and Kinnickinnic State Parks Inc | 501(c)(3) | 1995 | $409,022 | $1.2 million | 2024-12 |
| River Valley Trails Inc | 501(c)(3) | 2003 | $100,263 | $56,568 | 2025-12 |
| Friends of Perch Lake Inc | 501(c)(3) | 2001 | $0 | $0 | 2025-12 |
| Friends of Willow River Cemetery Inc | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Hudson Home and Garden Club | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| St Croix Citizens Uniting for Responsible Environmental Stewards | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| St Croix Valley Herb Guild | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Tropical Wings Inc | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
Other causes in Hudson, WI
- Recreation and sports 22
- Education 22
- Human services 18
- Religion-related 13
- Youth development 11
- Community improvement and capacity building 8
- Arts, culture and humanities 7
- Philanthropy, voluntarism and grantmaking foundations 7
- Health care 7
- Civil rights, social action and advocacy 5
- Food, agriculture and nutrition 5
- Diseases, disorders and medical disciplines 4
- Mental health and crisis intervention 4
- Public and societal benefit 4
- Public safety, disaster preparedness and relief 3
Every nonprofit in Hudson, WI · Environment 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.