Data / Nonprofits / Wisconsin / Waterloo
Nonprofits in Waterloo, WI: 37 registered with the IRS
37 nonprofits are registered with the IRS in Waterloo, WI, 27 of them 501(c)(3) charities; the 5 that report revenue took in $2 million. The largest by revenue: Badger Aquatics Club Inc ($1.1 million), Farm Technology Days of Wisconsin Inc ($596,753), Marshall Waterloo Food Pantry Inc ($194,731). Most common causes: education (6), food, agriculture and nutrition (4), public safety, disaster preparedness and relief (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Badger Aquatics Club Inc | Youth development | 501(c)(3) | 2000 | $1.1 million | $227,267 | 2025-08 |
| Farm Technology Days of Wisconsin Inc | Food, agriculture and nutrition | 501(c)(3) | 2022 | $596,753 | $640,203 | 2025-12 |
| Marshall Waterloo Food Pantry Inc | Food, agriculture and nutrition | 501(c)(3) | 2010 | $194,731 | $246,969 | 2025-12 |
| St Jude Academy | Education | 501(c)(3) | 2023 | $99,538 | $29,785 | 2025-06 |
| Waterloo Youth Sports Organization | Recreation and sports | 501(c)(3) | 2005 | $83,578 | $24,729 | 2025-12 |
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| American Legion Auxiliary | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| Austin Weber Scholarship Fund | Education | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Cruzin for A Cause Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2024 | $0 | $0 | 2026-03 |
| Friends of the Karl Junginger Memorial Library | Education | 501(c)(3) | 2019 | $0 | $0 | 2025-09 |
| Friends of the Waterloo City Band Inc | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Friends of the Waterloo Firemens Park Inc | Community improvement and capacity building | 501(c)(3) | 2025 | |||
| Friends of the Waterloo Police Depa Rtment | Public safety, disaster preparedness and relief | 501(c)(3) | 2026 | |||
| Hope in Action Inc | Religion-related | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Hubbleton Riders Inc | 501(c)(7) | 1975 | $0 | $0 | 2025-10 | |
| Karl Junginger Foundation Inc | 501(c)(3) | 1989 | $3.1 million | 2024-12 | ||
| Knight Masons of the USA | 501(c)(10) | 1976 | $0 | $0 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Mutual Community Mission Group | Food, agriculture and nutrition | 501(c)(3) | 2023 | $0 | $0 | 2026-07 |
| Oak Hill Cemetery Association | 501(c)(13) | 1955 | $0 | $0 | 2025-12 | |
| One Another Inc | Food, agriculture and nutrition | 501(c)(3) | 2022 | $0 | $0 | 2025-09 |
| St John Evangelical Lutheran Church | 501(c)(3) | 1966 | 2014-12 | |||
| St John Lutheran Church | 501(c)(3) | 1966 | ||||
| Trek Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2021 | $98,221 | 2024-12 | |
| Trek Scholarship Foundation Inc | Education | 501(c)(3) | 2006 | $2.9 million | 2025-07 | |
| Veterans of Foreign Wars of the United States Dept of Wisconsin | 501(c)(19) | 1973 | $0 | $0 | 2025-12 | |
| Waterloo Area Historical Society Inc | 501(c)(3) | 1979 | $0 | $0 | 2026-05 | |
| Waterloo Community Foundation Inc | Community improvement and capacity building | 501(c)(3) | 2005 | $0 | $0 | 2024-12 |
| Waterloo Fire & Ems Supporters Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Waterloo Knights Youth Sports Club Inc | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Waterloo Parent Teacher Organization Inc | Education | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Waterloo Pirate Athletic Booster Club | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Waterloo Snowmobile Club Inc 442 Edison St | 501(c)(7) | 1978 | $0 | $0 | 2025-08 | |
| Wisconsin Ifye Incorporated | Youth development | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Wisconsin Society of Otolaryngology Head and Neck Surgery | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| York Rite Sovereign College of North America | 501(c)(10) | 1959 | $0 | $0 | 2025-05 |
By cause in Waterloo, WI
- Education 6
- Food, agriculture and nutrition 4
- Public safety, disaster preparedness and relief 3
- Youth development 3
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.