Data / Nonprofits / Wisconsin / Green Lake
Nonprofits in Green Lake, WI: 54 registered with the IRS
54 nonprofits are registered with the IRS in Green Lake, WI, 44 of them 501(c)(3) charities; the 13 that report revenue took in $5.7 million. The largest by revenue: Green Lake Association Inc ($1.9 million), Green Lake Renewal Inc ($753,871), Thrasher Opera House Corporation ($643,760). Most common causes: youth development (11), environment (4), arts, culture and humanities (3).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Green Lake Association Inc | Environment | 501(c)(3) | 1977 | $1.9 million | $6.5 million | 2025-12 |
| Green Lake Renewal Inc | Community improvement and capacity building | 501(c)(3) | 2009 | $753,871 | $2.6 million | 2024-12 |
| Thrasher Opera House Corporation | Arts, culture and humanities | 501(c)(3) | 1998 | $643,760 | $2.2 million | 2024-12 |
| Friends of Freeland Foundation | Animal-related | 501(c)(3) | 2010 | $637,798 | $99,227 | 2024-12 |
| Green Lake Area Chamber of Commerce Inc | 501(c)(6) | 1991 | $488,590 | $660,738 | 2025-12 | |
| Green Lake Conservancy Inc | Environment | 501(c)(3) | 1995 | $371,920 | $1.8 million | 2025-12 |
| Green Lake Area Animal Shelter LTD | Animal-related | 501(c)(3) | 1993 | $293,955 | $657,897 | 2025-12 |
| Green Lake Festival of Music | Arts, culture and humanities | 501(c)(3) | 1980 | $246,828 | $1.1 million | 2025-09 |
| Green Lake Greenways | Recreation and sports | 501(c)(3) | 2010 | $94,768 | $208,386 | 2025-12 |
| Caestecker Public Library Foundation Inc | 501(c)(3) | 1990 | $84,810 | $701,809 | 2025-12 | |
| American Legion | 501(c)(19) | 1946 | $75,113 | $1.3 million | 2025-12 | |
| Foxhead Regenerative Agriculture Project | Environment | 501(c)(3) | 2022 | $60,045 | $18,419 | 2024-12 |
| Friends of the Caestecker Public Library | 501(c)(3) | 1983 | $47,233 | $307,599 | 2025-07 | |
| American Baptist Assembly | 501(c)(3) | 1953 | 2006-12 | |||
| American Legion Auxiliary | 501(c)(19) | 1934 | $0 | $0 | 2025-12 | |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | 501(c)(3) | 2014 | $0 | $0 | 2025-06 | |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisconsin System | 501(c)(1) | 2014 | ||||
| Board of Regents of the University of Wisconsin System | 501(c)(1) | 2014 | $0 | $0 | 2024-12 | |
| Camp Grow Ministries Inc | 501(c)(3) | 1955 | 2006-12 | |||
| Community Options Inc | Housing and shelter | 501(c)(3) | 1986 | $0 | $0 | 2024-12 |
| Craig C Culver Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2019 | $4.7 million | 2025-12 | |
| Dartford Cemetery Association | 501(c)(13) | 1967 | $0 | $0 | 2025-12 | |
| Dartford Educational Club Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2026-05 |
| Dartford Historical Society Incorporated | 501(c)(3) | 1957 | $0 | $0 | 2026-01 | |
| Emmet Is Love Charitable Foundation Inc | Human services | 501(c)(3) | 2026 | |||
| Federated Church of Green Lake | 501(c)(3) | 1964 | 2014-12 | |||
| Fraternal Order of Police | Mutual and membership benefit | 501(c)(8) | 2022 | $0 | $0 | 2025-12 |
| Friends of the Mill Pond LTD | Environment | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Gla 13dot1 Inc | Health care | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Green Lake Area Womens Club | 501(c)(6) | 1963 | $0 | $0 | 2025-05 | |
| Green Lake Athletic Boosters | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Green Lake County Crimestoppers Inc | Crime and legal-related | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| Green Lake Main Street | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Green Lake Public Schools Foundation Inc | 501(c)(3) | 1987 | $0 | $0 | 2025-12 | |
| Lake of the Falls Association Lofa Inc | Animal-related | 501(c)(3) | 2026 | |||
| Minds in Motion FV Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Our Lady of the Lake Congregation | 501(c)(3) | 1946 | 2013-12 | |||
| Peace Lutheran Church | 501(c)(3) | 1966 | ||||
| Richards Performance Company Inc | Arts, culture and humanities | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Riordan Family Foundation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $12.4 million | 2024-12 | |
| Rotary International | 501(c)(4) | 1966 | $0 | $0 | 2025-06 | |
| The Senior Citizen Civic Center of Green Lake Inc | 501(c)(4) | 1982 | $0 | $0 | 2025-12 | |
| Worldwide Gifts of Green Lake | 501(c)(3) | 1955 |
By cause in Green Lake, WI
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.