Data / Nonprofits / Wisconsin / Janesville
Nonprofits in Janesville, WI: 389 registered with the IRS
389 nonprofits are registered with the IRS in Janesville, WI, 302 of them 501(c)(3) charities; the 118 that report revenue took in $995.5 million. The largest by revenue: Mercy Health System Corporation ($769.8 million), Rock County Electric Cooperative Association ($66.3 million), Mercy Harvard Hospital Inc ($28.1 million). Most common causes: recreation and sports (35), youth development (30), human services (25).
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Every organization, largest by revenue first
| Organization | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Mercy Health System Corporation | Health care | 501(c)(3) | 1972 | $769.8 million | $988.3 million | 2025-06 |
| Rock County Electric Cooperative Association | 501(c)(12) | 1938 | $66.3 million | $131.5 million | 2024-12 | |
| Mercy Harvard Hospital Inc | Health care | 501(c)(3) | 1997 | $28.1 million | $35.1 million | 2025-06 |
| Cedar Crest Inc | Health care | 501(c)(3) | 1966 | $22.6 million | $120.2 million | 2025-06 |
| Community Foundation of Southern Wisconsin Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1992 | $15.9 million | $105.5 million | 2025-06 |
| Mercy Assisted Care Inc | Health care | 501(c)(3) | 1965 | $15.4 million | $17.7 million | 2025-06 |
| Rock Valley Community Programs Inc | Crime and legal-related | 501(c)(3) | 1983 | $10.3 million | $7.7 million | 2025-12 |
| Childrens Museum of Rock County Inc | Arts, culture and humanities | 501(c)(3) | 2007 | $6.3 million | $11.1 million | 2024-12 |
| Everyone Cooperating To Help Others Inc | Human services | 501(c)(3) | 1976 | $5.3 million | $3.1 million | 2024-12 |
| Boys & Girls Club of Janesville | Youth development | 501(c)(3) | 1994 | $4.2 million | $26.9 million | 2025-12 |
| Healthnet of Rock County Inc | Health care | 501(c)(3) | 1994 | $4.2 million | $3.9 million | 2025-06 |
| YMCA of Northern Rock County Inc | 501(c)(3) | 1972 | $3.4 million | $8.3 million | 2025-12 | |
| International Brotherhood of Electrical Workers | 501(c)(5) | 1940 | $2.8 million | $6.7 million | 2025-06 | |
| Young Womens Christian Association | Human services | 501(c)(3) | 1922 | $2.6 million | $3.1 million | 2024-12 |
| United Way Blackhawk Region Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1963 | $2.6 million | $7.2 million | 2024-12 |
| Janesville Country Club | Recreation and sports | 501(c)(7) | 1953 | $2.4 million | $3.8 million | 2025-12 |
| The Humane Society of Southern Wisconsin Inc | Animal-related | 501(c)(3) | 1960 | $2.1 million | $7 million | 2024-12 |
| Rock Prairie Montessori Inc | 501(c)(3) | 1994 | $1.9 million | $2.6 million | 2025-08 | |
| Rotary Botanical Gardens Inc | Environment | 501(c)(3) | 1994 | $1.4 million | $3.6 million | 2025-03 |
| Janesville Community Day Care Center Inc | Human services | 501(c)(3) | 1969 | $1.2 million | $462,184 | 2025-12 |
| Nutrition & Health Associates Inc | 501(c)(3) | 1984 | $1.2 million | $740,568 | 2024-12 | |
| Janesville Area Convention and Vistors Bureau Inc | Recreation and sports | 501(c)(6) | 2000 | $1.1 million | $726,128 | 2025-12 |
| God Is Faithful Temporary Shelter | Human services | 501(c)(3) | 2009 | $1.1 million | $1.9 million | 2025-07 |
| First Senior Housing Corporation | Housing and shelter | 501(c)(3) | 1996 | $1 million | $3.4 million | 2025-12 |
| American Friends of Orr Shalom Inc | International, foreign affairs and national security | 501(c)(3) | 1989 | $986,124 | $122,585 | 2025-12 |
| Childs First Inc | Human services | 501(c)(3) | 2017 | $927,305 | $500,455 | 2025-12 |
| Janesville Youth Baseball & Softball Association Inc | Recreation and sports | 501(c)(3) | 1959 | $868,077 | $1.1 million | 2025-09 |
| Forward Janesville Inc | 501(c)(6) | 1987 | $813,474 | $596,013 | 2025-02 | |
| Project 1649 Inc | Youth development | 501(c)(3) | 2014 | $799,903 | $546,409 | 2024-12 |
| Blackhawk Technical College Foundation Inc | 501(c)(3) | 1982 | $791,035 | $8.7 million | 2025-06 | |
| Janesville Performing Arts Center Inc | Arts, culture and humanities | 501(c)(3) | 2000 | $786,753 | $3.2 million | 2025-08 |
| American Idea Foundation Inc | Civil rights, social action and advocacy | 501(c)(3) | 2019 | $767,869 | $9 million | 2024-12 |
| 4-H Clubs & Affiliated 4-H Organizations | Recreation and sports | 501(c)(3) | 1958 | $748,413 | $1.5 million | 2025-10 |
| Senior Services Plus Health Care Inc | Health care | 501(c)(3) | 2006 | $707,794 | $329,221 | 2024-12 |
| Rock County Historical Society | Arts, culture and humanities | 501(c)(3) | 1950 | $563,477 | $2.4 million | 2024-12 |
| Rock County Cancer Coalition | Medical research | 501(c)(3) | 2014 | $511,422 | $237,683 | 2025-05 |
| Casa of Rock County | 501(c)(3) | 2019 | $509,949 | $809,012 | 2025-12 | |
| Fiscc Inc | Community improvement and capacity building | 501(c)(3) | 2023 | $496,015 | $2.8 million | 2025-12 |
| Wisconsin Elks Benevolent Fund Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1993 | $494,458 | $3.3 million | 2026-03 |
| Oakhill Christian School LTD | Education | 501(c)(3) | 2005 | $436,791 | $46,492 | 2025-06 |
| Mercy Hospital Auxiliary Inc | Health care | 501(c)(3) | 1964 | $388,262 | $387,915 | 2025-06 |
| Forward Foundation Inc | Community improvement and capacity building | 501(c)(3) | 1987 | $356,970 | $2.3 million | 2025-02 |
| Veterans of Foreign Wars of the United States Dept of Wisconsin | 501(c)(19) | 2024 | $335,526 | $504,150 | 2020-06 | |
| Nami Rock County Inc | 501(c)(3) | 1983 | $329,155 | $241,885 | 2024-12 | |
| Kennedy Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2016 | $325,250 | $7,590 | 2024-12 |
| Legacy Athletics Inc | Recreation and sports | 501(c)(3) | 2013 | $325,243 | $648 | 2024-12 |
| International Union United Auto Aerospace & Agricultural Workers | 501(c)(5) | 1941 | $318,528 | $2.4 million | 2025-12 | |
| Janesville Hockey Club Inc | Recreation and sports | 501(c)(3) | 1970 | $316,143 | $414,009 | 2025-03 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $297,739 | $622,221 | 2026-03 | |
| St Marys Janesville Foundation Inc | 501(c)(3) | 1946 | $289,509 | $1 million | 2024-12 | |
| Wisconsin Sheep Breeders Cooperative | 501(c)(5) | 1983 | $288,721 | $221,437 | 2024-12 | |
| Engineers Foundation of Wisconsin Inc | 501(c)(3) | 1984 | $284,714 | $569,472 | 2025-06 | |
| Take A Kid Hunting Foundation Inc | Youth development | 501(c)(3) | 1998 | $267,481 | $396,050 | 2026-06 |
| Cedar Crest Foundation Inc | Housing and shelter | 501(c)(3) | 2004 | $242,246 | $843,016 | 2025-06 |
| Rock Soccer Club | Recreation and sports | 501(c)(3) | 2007 | $215,134 | $168,920 | 2025-06 |
| Rock County Rifle & Pistol Club Inc | Recreation and sports | 501(c)(4) | 2016 | $215,108 | $382,405 | 2025-12 |
| Janesville-Beloit Kennel Club Inc | 501(c)(4) | 1973 | $209,539 | $321,427 | 2025-05 | |
| Guardian Friend Associates Inc | Human services | 501(c)(3) | 2018 | $206,489 | $365,719 | 2024-12 |
| Janesville Youth Football Inc | Recreation and sports | 501(c)(3) | 1992 | $200,485 | $285,789 | 2025-12 |
| Wisconsin Educational Media Association Inc | Arts, culture and humanities | 501(c)(3) | 1984 | $194,182 | $40,374 | 2025-09 |
| Rock Aqua Jays Water Ski Club Inc | 501(c)(3) | 1998 | $193,381 | $205,936 | 2025-12 | |
| Redeemed Christian Counseling and Education | 501(c)(3) | 2014 | $186,447 | $231,233 | 2025-12 | |
| Parker Viking Athletic Booster Club Inc | Education | 501(c)(3) | 2001 | $183,073 | $243,735 | 2025-08 |
| Downtown Janesville Inc | Community improvement and capacity building | 501(c)(3) | 2004 | $174,882 | $248,931 | 2025-12 |
| Milton Storm Baseball Inc | Recreation and sports | 501(c)(3) | 2018 | $174,349 | $116,321 | 2025-12 |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $173,829 | $158,584 | 2025-12 | |
| South Central Wisconsin Builders Association Inc | 501(c)(6) | 1979 | $172,981 | $491,408 | 2024-12 | |
| Rbi Baseball | Recreation and sports | 501(c)(3) | 2020 | $163,570 | $90,866 | 2025-12 |
| Janesville Innovation Inc | Community improvement and capacity building | 501(c)(3) | 2013 | $146,960 | $10,892 | 2024-12 |
| Association for the Sociology of Religion Inc | 501(c)(6) | 1970 | $145,934 | $1.2 million | 2025-12 | |
| Bridges4justice | International, foreign affairs and national security | 501(c)(3) | 2015 | $143,115 | $142,207 | 2024-12 |
| Independent Business Association of Wisconsin Inc | 501(c)(6) | 1971 | $142,460 | $83,420 | 2025-06 | |
| Gradys Classroom Inc | Health care | 501(c)(3) | 2021 | $140,839 | $77,799 | 2024-12 |
| Wisconsin Nursery and Landscape Association Inc | 501(c)(6) | 1985 | $132,908 | $487,593 | 2025-12 | |
| Pregnancy Helpline and Resource Center of Janesville Inc | 501(c)(3) | 1985 | $128,682 | $139,169 | 2025-06 | |
| Global Church Planting Partners | International, foreign affairs and national security | 501(c)(3) | 2010 | $128,484 | $198,854 | 2025-12 |
| Wisconsin Liquid Waste Carriers Association | 501(c)(6) | 1993 | $127,928 | $155,133 | 2025-12 | |
| Genetic Counselor Educators Association | Community improvement and capacity building | 501(c)(6) | 2003 | $121,019 | $290,234 | 2025-06 |
| Propel Forward Inc | Human services | 501(c)(3) | 2024 | $120,163 | $30,278 | 2025-12 |
| Janesville Farmers Market Inc | 501(c)(3) | 2020 | $117,164 | $50,568 | 2026-01 | |
| Hedberg Public Library Foundation Inc | Education | 501(c)(3) | 1980 | $106,997 | $1.5 million | 2024-12 |
| Friends of Hedberg Public Library | 501(c)(3) | 1978 | $106,325 | $110,836 | 2024-12 | |
| Janesville Rotary Foundation | Community improvement and capacity building | 501(c)(3) | 1945 | $93,094 | $1.4 million | 2025-06 |
| Friends of Noah Inc Wisconsin | Animal-related | 501(c)(3) | 2000 | $92,217 | $48,806 | 2025-12 |
| Wisconsin Chapter of the American Society of Landscape Architects in | 501(c)(6) | 1972 | $91,422 | $97,960 | 2025-12 | |
| American Junior Investigator Association | Science and technology | 501(c)(3) | 2024 | $89,901 | $92,587 | 2025-12 |
| Rock Volleyball Club Inc | Recreation and sports | 501(c)(3) | 2016 | $88,691 | $58,310 | 2025-12 |
| Dance Masters of Wisconsin Inc | Arts, culture and humanities | 501(c)(3) | 1995 | $84,687 | $301,818 | 2025-12 |
| Spirit Horse Equine Rescue & Education Center | Animal-related | 501(c)(3) | 2016 | $83,014 | $18,937 | 2026-05 |
| Wisconsin Vest-A-Dog Inc | Crime and legal-related | 501(c)(3) | 2013 | $79,570 | $44,596 | 2025-12 |
| American Society of Interior Designers Inc | 501(c)(6) | 1975 | $79,245 | $66,795 | 2025-09 | |
| Janesville Community Center Inc | Human services | 501(c)(3) | 2019 | $78,449 | $24,435 | 2024-12 |
| Leadership Development Academy Inc | Education | 501(c)(3) | 2003 | $78,288 | $79,680 | 2025-12 |
| Isaac Strong Foundation Inc | Health care | 501(c)(3) | 2021 | $77,552 | $97,988 | 2025-12 |
| Janesville Lodge No 197 Loyal Order of Moose | 501(c)(8) | 1935 | $75,341 | $62,779 | 2026-04 | |
| Green-Rock Audubon Society Inc | Environment | 501(c)(3) | 1992 | $72,486 | $1.1 million | 2025-08 |
| Foundation for the Preservation of 108 South Jackson St Inc | Arts, culture and humanities | 501(c)(3) | 1996 | $68,786 | $317,202 | 2026-05 |
| Janesville Conservation Club | 501(c)(7) | 1975 | $67,992 | $203,156 | 2025-12 | |
| Rocky Mountain Chapter of the Professional Convention Management | Community improvement and capacity building | 501(c)(6) | 2021 | $62,151 | $142,118 | 2024-12 |
| Red Road Rooming House Inc | Housing and shelter | 501(c)(3) | 1998 | $60,985 | $155,940 | 2025-12 |
| Prosperity Wisconsin Inc | Environment | 501(c)(4) | 2025 | $60,103 | $49,904 | 2025-12 |
| Wisconsin Public Transportation Association Inc | Community improvement and capacity building | 501(c)(6) | 2017 | $59,171 | $317,950 | 2025-12 |
| Rock-Green Realtors Association Inc | Community improvement and capacity building | 501(c)(6) | 2016 | $58,325 | $125,902 | 2025-09 |
| International Association of Lions Clubs | 501(c)(4) | 1940 | $58,154 | $153,252 | 2025-06 | |
| Professional Convention Management Association | 501(c)(6) | 1967 | $57,356 | $65,831 | 2025-12 | |
| Janesville Professional Policemens Association Inc | 501(c)(5) | 1978 | $56,239 | $78,378 | 2024-12 | |
| Wisconsin Livestock Breeders Association | 501(c)(5) | 1987 | $55,931 | $140,550 | 2024-12 | |
| Rotary International | 501(c)(4) | 1942 | $55,633 | $37,220 | 2025-06 | |
| National Association of Letter Carriers | 501(c)(5) | 1944 | $49,555 | $27,087 | 2025-12 | |
| Kids Against Hunger - Rock County Rotary Inc | Food, agriculture and nutrition | 501(c)(3) | 2008 | $41,165 | $57,148 | 2025-12 |
| Winstons Wishes | Animal-related | 501(c)(3) | 2017 | $38,867 | $25,922 | 2024-12 |
| Rotary International | 501(c)(4) | 1958 | $33,980 | $88,426 | 2025-06 | |
| Janesville Lions Foundation Inc | Recreation and sports | 501(c)(3) | 2023 | $31,020 | $111,038 | 2025-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $25,508 | $75,808 | 2025-06 |
| Team Harmony Pto | Education | 501(c)(3) | 2020 | $21,303 | $34,981 | 2026-06 |
| Rock County Pork Producers Inc | Food, agriculture and nutrition | 501(c)(5) | 2010 | $11,380 | $36,662 | 2025-12 |
| Lexies Legacy Foundation Inc | Human services | 501(c)(3) | 2019 | $9,251 | $6,782 | 2024-12 |
| Auxiliary 2140 | 501(c)(8) | 1991 | $8,418 | $77,386 | 2025-05 | |
| 12 & 12 Drop in Center Inc | Mental health and crisis intervention | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| A Right To Life Animal & Equine Sanctuary | Animal-related | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Acts of Kindness Ua | Human services | 501(c)(3) | 2009 | $0 | $0 | 2025-12 |
| Adam Silha Memorial Fund Inc | Public and societal benefit | 501(c)(3) | 2026 | |||
| Ag Business Council of Rock County Inc | Education | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| American Association of University Women | 501(c)(4) | 2010 | $0 | $0 | 2026-06 | |
| American Association of University Women Inc | 501(c)(4) | 2010 | $0 | $0 | 2026-06 | |
| American Blind Bowling Association Inc | 501(c)(3) | 2000 | $0 | $0 | 2026-07 | |
| American Federation of Labor & Congress of Industrial Orgs | 501(c)(5) | 1956 | $0 | $0 | 2026-06 | |
| American Federation of Labour & Congress of Industrial Orgs | 501(c)(5) | 1956 | $0 | $0 | 2025-12 | |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $0 | $0 | 2025-12 | |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $0 | $0 | 2024-12 | |
| American Federation of Teachers | 501(c)(5) | 1967 | $0 | $0 | 2026-06 | |
| American Legion | 501(c)(19) | 1946 | $0 | $0 | 2025-12 | |
| American Legion Auxiliary | 501(c)(19) | 1946 | $0 | $0 | 2025-09 | |
| Ancient Hearts Collective Inc | Education | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Another Chance for Success | Education | 501(c)(3) | 2025 | |||
| BGC Janesville Real Estate Holdings Inc | Youth development | 501(c)(3) | 2025 | |||
| Badger Chordhawks Chorus Guild Inc | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Baer Family Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1995 | $299,564 | 2024-12 | |
| Beagle Ridge Rescue | Animal-related | 501(c)(3) | 2025 | |||
| Believers in Christ Fellowship | 501(c)(3) | 1988 | ||||
| Bethel Baptist Church | 501(c)(3) | 1972 | ||||
| Blackhawk Human Resource Association | Community improvement and capacity building | 501(c)(6) | 2014 | $0 | $0 | 2025-12 |
| Blackhawk Musky Club Inc | Recreation and sports | 501(c)(3) | 2024 | $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 | 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 | 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 | 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 | ||||
| Brothers in Chains MC | Recreation and sports | 501(c)(7) | 2011 | $0 | $0 | 2025-12 |
| Camden Foundation Inc | Recreation and sports | 501(c)(3) | 1990 | $0 | $0 | 2024-12 |
| Cargill United Methodist Church of Janesville Wisconsin | 501(c)(3) | 1974 | ||||
| Cargill United Methodist Columbarium Inc | Mutual and membership benefit | 501(c)(13) | 2020 | $0 | $0 | 2024-12 |
| Cargill United Methodist Foundation of Janesville Inc | Religion-related | 501(c)(3) | 1987 | |||
| Cats Inc | Education | 501(c)(3) | 1972 | $0 | $0 | 2026-07 |
| Choral Union LTD | 501(c)(3) | 1986 | $0 | $0 | 2026-02 | |
| Christ the Rock Church | 501(c)(3) | 1964 | ||||
| Christian Methodist Episcopal Church | 501(c)(3) | 1980 | ||||
| Circle Arts Collective | Arts, culture and humanities | 501(c)(3) | 2023 | $0 | $0 | 2023-09 |
| City of Hope | 501(c)(3) | 1964 | ||||
| Come Forth Ministries Inc | Religion-related | 501(c)(3) | 2024 | $0 | $18,400 | 2025-12 |
| Common-Sense Institute of Wisconsin | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Communication Workers of America | 501(c)(5) | 1950 | $0 | $0 | 2021-09 | |
| Compass Church Inc | 501(c)(3) | 1958 | ||||
| Cornerstone of Hope Inc | Housing and shelter | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| David Tilton Memorial Fund | Recreation and sports | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Dawe Charitable Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2015 | $919,834 | 2025-12 | |
| Delta Kappa Gamma Society | 501(c)(6) | 1965 | $0 | $0 | 2026-06 | |
| Demining Research Community | Science and technology | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Easy Peasy Kits Incorporated | Human services | 501(c)(3) | 2026 | |||
| Elks Ladies of Janesville | 501(c)(3) | 1988 | $0 | $0 | 2026-03 | |
| Empower 2 Change U | Human services | 501(c)(3) | 2023 | $1 | 2024-12 | |
| Endless Opportunities Incorporated | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Evangelical Lutheran Church in America | 501(c)(3) | 1987 | ||||
| Evansville Sno-Devils Inc | 501(c)(7) | 1974 | $0 | $0 | 2025-12 | |
| FR Gilbert Carlton Council No 9360 Knights of Columbus | Mutual and membership benefit | 501(c)(8) | 2013 | $0 | $0 | 2025-12 |
| Faith Bible Chapel LTD | 501(c)(3) | 1974 | ||||
| Faith Community Church | Religion-related | 501(c)(3) | 2007 | |||
| Faith Lutheran Church | Religion-related | 501(c)(3) | 1987 | 2013-12 | ||
| Faith Lutheran Endowment Foundation Inc | 501(c)(3) | 1985 | ||||
| Faith Outreach Ministry | Public and societal benefit | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Faith Works of Rock County Inc | Human services | 501(c)(3) | 2007 | $0 | $0 | 2024-12 |
| Familiars Foster Network & Rescue | Animal-related | 501(c)(3) | 2023 | $0 | $0 | 2026-03 |
| First Christian Church | 501(c)(3) | 1951 | ||||
| Fleeters Helping Fleeters Inc | Human services | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Forward Moose Legion 191 | 501(c)(8) | 1935 | $0 | $0 | 2025-04 | |
| Friends of Janesville Public Access Television Inc | Education | 501(c)(3) | 2001 | $0 | $0 | 2026-02 |
| Friends of Riverside Park Janesville Wisconsin Inc | Recreation and sports | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Friends of Rock County Parks Incorporated | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Friends of Sizabantwana Inc | Human services | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Friends of the Clinton Public Library | 501(c)(3) | 1983 | $0 | $0 | 2025-12 | |
| Fury Booster Club Inc | 501(c)(3) | 2020 | $0 | $0 | 2025-12 | |
| GPS Hope Inc | Human services | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| George S Parker High School Choir Booster Club PCBC Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Good Shepherd Lutheran Church | 501(c)(3) | 1988 | ||||
| Good Trouble Beloit Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Grace Community International of Janesville Wi | Religion-related | 501(c)(3) | 1998 | |||
| Green Beret Marching Band Parents Inc | 501(c)(3) | 1969 | $0 | $0 | 2025-10 | |
| Gryphon Poursuivant Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Harrison Elementary School Pto | Education | 501(c)(3) | 2022 | $0 | $0 | 2025-06 |
| Harvesters Church of Rock County | 501(c)(3) | 1984 | ||||
| He Ministries Inc | Religion-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Health Care Education Association | Education | 501(c)(6) | 1999 | $0 | $0 | 2025-12 |
| Ikainian PX Incorporated | 501(c)(3) | 2023 | $0 | $0 | 2023-12 | |
| Inclusive Charity DJ Network LTD | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Inspiritradio Inc | Religion-related | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| International Association of Lions Clubs | 501(c)(4) | 1969 | $0 | $0 | 2025-06 | |
| International Association of Machinists & Aerospace Workers | 501(c)(5) | 1940 | $0 | $0 | 2025-12 | |
| International Union United Auto Aerospace & Agricultural Workers | 501(c)(5) | 1941 | $0 | $0 | 2025-12 | |
| J P C Foundation | Education | 501(c)(3) | 1992 | $7 million | 2025-05 | |
| Janesville Area Crimestoppers Programs Inc | 501(c)(3) | 1985 | $0 | $0 | 2025-08 | |
| Janesville Art League | 501(c)(3) | 1930 | $0 | $0 | 2025-04 | |
| Janesville Bowmen Inc | Recreation and sports | 501(c)(4) | 2000 | $0 | $0 | 2025-12 |
| Janesville Chapter 477 Women of the Moose | 501(c)(8) | 1935 | $0 | $0 | 2026-04 | |
| Janesville Cristo Rey Iglesia Del Nazareno | 501(c)(3) | 1963 | ||||
| Janesville Deaf Club | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Janesville Education Association | Employment | 501(c)(5) | 2025 | $0 | $0 | 2025-08 |
| Janesville Elks Charities Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Janesville Figure Skating Club Inc | Recreation and sports | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Janesville Firefighters Charities | Public safety, disaster preparedness and relief | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Janesville Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1946 | $8.9 million | 2025-12 | |
| Janesville Foursquare Church | 501(c)(3) | 1946 | ||||
| Janesville Lacrosse Club Inc | Recreation and sports | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Janesville Little Theater LTD | 501(c)(3) | 1986 | $0 | $0 | 2025-05 | |
| Janesville Mobilizing 4 Change Inc | 501(c)(3) | 2016 | $0 | $0 | 2025-09 | |
| Janesville Morning Rotary Foundation Inc | 501(c)(3) | 1992 | $0 | $0 | 2025-12 | |
| Janesville Muslim Dawah Center | Religion-related | 501(c)(3) | 2017 | $0 | $0 | 2023-12 |
| Janesville Nica Mountain Bike Team | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Janesville Patriotic Society | Public and societal benefit | 501(c)(19) | 2012 | $0 | $0 | 2025-12 |
| Janesville Police Supervisor Assoication Lodge 15 Inc | Crime and legal-related | 501(c)(8) | 2024 | $0 | $0 | 2025-12 |
| Janesville Presents Inc | Arts, culture and humanities | 501(c)(3) | 1982 | $0 | $0 | 2026-05 |
| Janesville Senior Center Advisory Board Inc | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Janesville Velo Club Inc | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Janesville Wesleyan Church Inc | 501(c)(3) | 1970 | ||||
| Janesville Youth Wrestling Club | Recreation and sports | 501(c)(3) | 2011 | $0 | $0 | 2025-09 |
| Jeffris Family Foundation LTD | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2002 | $15.5 million | 2025-12 | |
| Jehovahs Witnesses Assembly Hall of Wisconsin Inc | 501(c)(3) | 1975 | ||||
| Joels Place Christian Fellowship | Religion-related | 501(c)(3) | 2000 | |||
| Journeys in Faith Ministries Inc | 501(c)(3) | |||||
| Justice for Survivors Inc | Civil rights, social action and advocacy | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Kandu Endowment Fund Inc | 501(c)(3) | 1992 | $0 | $0 | 2025-09 | |
| Kiwanis International Inc | 501(c)(4) | 1940 | ||||
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| Knights of Columbus | 501(c)(8) | 1940 | $0 | $0 | 2025-12 | |
| La Prairie Grove Mutual Insurance Company | 501(c)(15) | 1988 | ||||
| Labor-Fest Inc | 501(c)(4) | 1991 | $0 | $0 | 2025-12 | |
| League of Women Voters of Wisconsin Inc | Civil rights, social action and advocacy | 501(c)(3) | 2011 | $0 | $0 | 2026-06 |
| Lifespring Church Inc | Religion-related | 501(c)(3) | 2013 | |||
| Lincoln Fellowship of Wisconsin | Arts, culture and humanities | 501(c)(3) | 2001 | $0 | $0 | 2026-04 |
| Living Hope Community Church of Janesville Inc | 501(c)(3) | 1965 | ||||
| Local Hunger LTD | Human services | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| Love for Bronson Inc | Health care | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Mercedes Benz Club of America | 501(c)(7) | $0 | $0 | 2025-12 | ||
| Micah Project LTD | Human services | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Midwest Christian Center Inc | 501(c)(3) | 1978 | ||||
| Military Order of the Cootie of the United States | 501(c)(4) | 1965 | $0 | $0 | 2025-04 | |
| Modern Woodmen of America | 501(c)(8) | 1961 | $0 | $0 | 2025-12 | |
| Momentum Track Club | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2026-04 |
| Mount Olivet Cemetery Inc | 501(c)(3) | 1946 | ||||
| Mt Calvary Lutheran Church | 501(c)(3) | 1941 | 2011-12 | |||
| National Animal Rescue Alliance Inc | Animal-related | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| National Federation of the Blind of Wisconsin | Human services | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| National Society Colonial Dames XVII Century | 501(c)(3) | 1967 | $0 | $0 | 2026-04 | |
| National Society of the Daughters of the American Revolution | 501(c)(3) | 1949 | $0 | $0 | 2025-12 | |
| National Society of the Sons of the American Revolution | 501(c)(3) | 1966 | $0 | $0 | 2025-12 | |
| New Life Assembly of God | 501(c)(3) | 1964 | 2013-12 | |||
| New Life Eunjin Church | Religion-related | 501(c)(3) | 2003 | |||
| No Limits Lda | 501(c)(3) | 2021 | $0 | $0 | 2026-05 | |
| North Central Conference Office | 501(c)(3) | 1946 | ||||
| Oak Hill Cemetery Association | 501(c)(13) | 1941 | ||||
| One Church One Home Inc | Religion-related | 501(c)(3) | 2025 | |||
| Open Hearts Open Minds Foundation Inc | Human services | 501(c)(3) | 2022 | $0 | $0 | 2025-11 |
| Optimist International | 501(c)(4) | 1958 | $0 | $0 | 2025-09 | |
| Optimist International | Mutual and membership benefit | 501(c)(4) | 1958 | $0 | $0 | 2025-09 |
| Order of the Eastern Star of the State of Wisconsin | 501(c)(8) | 1972 | $0 | $0 | 2026-06 | |
| Our Savior Lutheran Church | 501(c)(3) | 1941 | ||||
| Parker Band Parents Association Inc | Education | 501(c)(3) | 2014 | $0 | $0 | 2026-06 |
| Parker Foundation | 501(c)(3) | 1964 | $2.2 million | 2025-12 | ||
| Patrick W Ryan Memorial Tennis Foundation Inc | Recreation and sports | 501(c)(3) | 2018 | $144,607 | 2024-12 | |
| Peace Lutheran Church | 501(c)(3) | 1966 | ||||
| Pentacostal Hispanic Church | Religion-related | 501(c)(3) | 2003 | |||
| Piedras Vivas Inc | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Pregont Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2022 | $1 | 2025-12 | |
| Premier Giving Foundation Incorpora Ted | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Pride Theatre Productions Incorporated | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Prophetic Word Ministries Rock County Prayer Center | Religion-related | 501(c)(3) | 2010 | |||
| Pta JVL Madison Elementary | Education | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2025-07 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2025-06 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2025-06 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2024-06 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2025-06 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2026-06 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2024-06 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2025-06 | |
| Pta Wisconsin Congress | 501(c)(3) | 1972 | $0 | $0 | 2025-06 | |
| Pta Wisconsin Congress Van Buren | 501(c)(3) | 1972 | $0 | $0 | 2026-06 | |
| Rath Foundation Inc | 501(c)(3) | 1991 | $18.7 million | 2024-12 | ||
| Reading Is Better With H and Cheddar | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2024 | $0 | $0 | 2024-07 |
| Recovery House Inc | Mental health and crisis intervention | 501(c)(3) | 2019 | $0 | $0 | 2025-01 |
| Reorganized Church of Jesus Christ of Latter Day Saints | 501(c)(3) | 1946 | ||||
| Resonate Church Inc | Religion-related | 501(c)(3) | 2025 | |||
| River Hills Community Church | 501(c)(3) | 1965 | 2012-12 | |||
| Riverside Mens Golf Association | Recreation and sports | 501(c)(7) | 2022 | $0 | $0 | 2025-01 |
| Rock Around the Block Inc | Arts, culture and humanities | 501(c)(3) | 2007 | $0 | $0 | 2025-12 |
| Rock Co Genealogical Society Inc | Arts, culture and humanities | 501(c)(3) | 2013 | $0 | $0 | 2025-12 |
| Rock County Dental Society | 501(c)(6) | 1982 | $0 | $0 | 2025-12 | |
| Rock County Deputy Sheriff Supervisor Association | Crime and legal-related | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Rock County Evangelical Church Association Incorporated | 501(c)(3) | 1965 | ||||
| Rock County Fair Alumni Inc | Youth development | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Rock County Fire Officers Association Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2005 | $0 | $0 | 2026-01 |
| Rock County Multi-Use Trails Group Inc | Environment | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
| Rock County Restorations Substance Abuse Recovery Center | Human services | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Rock River Aero Modeling Society Inc | Recreation and sports | 501(c)(7) | 2003 | $0 | $0 | 2025-12 |
| Rock River Heritage Park Friends Incorporated | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Rock River Repertory Theatre Company | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $969 | 2025-12 |
| Rock Trail Coalition | Recreation and sports | 501(c)(3) | 1994 | $0 | $0 | 2025-12 |
| Rock University High School Governing Board Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Rockvalley Quilters Guild | 501(c)(4) | 1986 | $0 | $0 | 2024-12 | |
| Rolling Thunder Inc | 501(c)(4) | 1996 | $0 | $0 | 2025-12 | |
| Roosevelt Pta | Education | 501(c)(3) | 1972 | $0 | $0 | 2024-06 |
| Ryan Stevenson Memorial Fund Inc | Public and societal benefit | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Saint Mark Lutheran Church | 501(c)(3) | 1941 | ||||
| Scholarships for Technical and Recognized Training | Education | 501(c)(3) | 2009 | $0 | $0 | 2025-06 |
| Sending Hope Network Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Seventh Day Baptist Gen Conference | 501(c)(3) | 2000 | ||||
| Seventh Day Baptist Historical Society | 501(c)(3) | 2000 | ||||
| Seventh Day Baptist Memorial Fund Inc | 501(c)(3) | 2000 | ||||
| Sisters of Charity of Our Lady Mother of the Church | 501(c)(3) | 1946 | ||||
| Sling N Stitches | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2025-12 |
| Southern Wisconsin Emergency Preparedness Team Incorporated | Public safety, disaster preparedness and relief | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Spiritual Assembly of the Bahais of Janesville | 501(c)(3) | 1995 | ||||
| Spotlight On Kids Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| St John Lutheran Church | 501(c)(3) | 1984 | ||||
| St Matthews Evangelical Lutheran Church | 501(c)(3) | 1966 | 2013-12 | |||
| St Patricks Congregation | 501(c)(3) | 1946 | 2013-12 | |||
| St Pauls Lutheran Church | 501(c)(3) | 1941 | ||||
| The Anchorher Glow Foundation | Civil rights, social action and advocacy | 501(c)(3) | 2026 | |||
| The Site of Senses Project | Human services | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Theatre Unlimited Inc | Arts, culture and humanities | 501(c)(3) | 1999 | $0 | $0 | 2025-08 |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Turtle Creek Chamber Orchestra Inc | Arts, culture and humanities | 501(c)(3) | 2012 | $0 | $0 | 2025-12 |
| Tyberius Worden Foundation Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Tychicus Ministries Inc | International, foreign affairs and national security | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Union Labor Temple Association | 501(c)(5) | 1986 | $0 | $0 | 2025-12 | |
| United States Amateur Boxing Inc | 501(c)(3) | 1983 | $0 | $0 | 2025-12 | |
| United States Bowling Congress Inc | Recreation and sports | 501(c)(3) | 2004 | $0 | $0 | 2026-07 |
| VFW Riders Post 1621 | Public and societal benefit | 501(c)(4) | 2024 | $0 | $0 | 2025-12 |
| VLM Legacy Foundation | Human services | 501(c)(3) | 2026 | |||
| Vape Waste Solutions Inc | Environment | 501(c)(3) | 2025 | |||
| Veterans of Foreign Wars of the United States Dept of Wisconsin | 501(c)(4) | 1973 | $0 | $0 | 2025-06 | |
| Vietnam Veterans of America Inc | 501(c)(19) | 1984 | $0 | $0 | 2026-02 | |
| Voiture Nationale La Societe Des 40 Hommes Et 8 Chevaux | 501(c)(19) | 1940 | $0 | $0 | 2025-07 | |
| Waha Region 4 Hockey Council Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2026-06 |
| Washington Elementary School Pto | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-06 |
| Webs of Grief Inc | Mental health and crisis intervention | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Wesley Avenue Alano Club Inc | Mental health and crisis intervention | 501(c)(3) | 1995 | $0 | $0 | 2025-12 |
| Westside Baptist Church | 501(c)(3) | 1978 | ||||
| William J Cronin Foundation | 501(c)(3) | 1981 | $2.2 million | 2025-11 | ||
| Williams Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1997 | $193,484 | 2025-12 | |
| Wisconsin Agricultural Tourism Association Inc | Food, agriculture and nutrition | 501(c)(6) | 2013 | $0 | $0 | 2025-12 |
| Wisconsin Al-Anon Alateen Inc | 501(c)(3) | 1984 | $0 | $0 | 2025-12 | |
| Wisconsin Braille Inc | Human services | 501(c)(3) | 1999 | $0 | $0 | 2024-12 |
| Wisconsin Civil Process Group Inc | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Wisconsin Daylily Society Inc | Employment | 501(c)(3) | 1996 | $0 | $0 | 2025-12 |
| Wisconsin Farm Animal Sanctuary Inc Orporated | Animal-related | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Wisconsin Fellowship of Poets | 501(c)(3) | 1977 | $0 | $0 | 2026-03 | |
| Womans Club Association | 501(c)(7) | 1941 | $0 | $0 | 2025-05 | |
| Women4wellness Inc | Health care | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Zonta International | 501(c)(4) | 1953 | $0 | $0 | 2025-05 |
By cause in Janesville, WI
- Recreation and sports 35
- Youth development 30
- Human services 25
- Education 23
- Arts, culture and humanities 20
- Religion-related 16
- Philanthropy, voluntarism and grantmaking foundations 15
- Health care 11
- Community improvement and capacity building 10
- Animal-related 9
- Environment 5
- Public and societal benefit 5
- International, foreign affairs and national security 4
- Housing and shelter 4
- Civil rights, social action and advocacy 4
- Crime and legal-related 4
- Mental health and crisis intervention 4
- Public safety, disaster preparedness and relief 3
- Food, agriculture and nutrition 3
- Mutual and membership benefit 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.