Data / Nonprofits / Wisconsin / Oshkosh
Nonprofits in Oshkosh, WI: 437 registered with the IRS
437 nonprofits are registered with the IRS in Oshkosh, WI, 338 of them 501(c)(3) charities; the 132 that report revenue took in $305.6 million. The largest by revenue: Experimental Aircraft Association Inc ($53.9 million), Cooperative Educational Service Agency 6 ($35.5 million), Clarity Care Inc ($30.7 million). Most common causes: education (39), recreation and sports (39), human services (28).
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 | Category | Type | Since | Revenue | Assets | Filing |
|---|---|---|---|---|---|---|
| Experimental Aircraft Association Inc | Science and technology | 501(c)(3) | 1993 | $53.9 million | $91.8 million | 2025-02 |
| Cooperative Educational Service Agency 6 | Education | 501(c)(3) | 1999 | $35.5 million | $24.1 million | 2025-06 |
| Clarity Care Inc | Human services | 501(c)(3) | 1988 | $30.7 million | $18.6 million | 2025-12 |
| Evergreen Retirement Community Inc | Human services | 501(c)(3) | 1968 | $26.9 million | $47.9 million | 2024-12 |
| Oshkosh Area Community Foundation Corporation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2001 | $15 million | $200.8 million | 2025-06 |
| Young Mens Christian Association | Human services | 501(c)(3) | 1959 | $14.8 million | $32.3 million | 2025-12 |
| Eaa Aviation Foundation Inc | Arts, culture and humanities | 501(c)(3) | 1964 | $13.5 million | $76.7 million | 2025-02 |
| Wisconsin Independent Christian Schools Inc | Education | 501(c)(3) | 2000 | $13 million | $9.1 million | 2025-06 |
| Bethel Home Inc | 501(c)(3) | 1961 | $10.6 million | $7.5 million | 2024-12 | |
| Oshkosh Area Community Pantry Inc | Food, agriculture and nutrition | 501(c)(3) | 2009 | $8 million | $3.1 million | 2024-12 |
| The Oshkosh Boys and Girls Club | Youth development | 501(c)(3) | 1968 | $7.1 million | $37.8 million | 2024-12 |
| Oshkosh Kids Foundation Inc | Youth development | 501(c)(3) | 2020 | $5.7 million | $15.2 million | 2024-12 |
| Eden Rehabilitation Suites and Green House Homes Inc | 501(c)(3) | 1988 | $5.2 million | $7.3 million | 2024-12 | |
| University of Wisconsin Oshkosh Foundation Inc | Education | 501(c)(3) | 1964 | $4.4 million | $49.4 million | 2025-06 |
| Miravida Living Inc | Human services | 501(c)(3) | 1961 | $3.7 million | $16.4 million | 2024-12 |
| Oshkosh Area Humane Society Inc | Animal-related | 501(c)(3) | 1992 | $3.4 million | $10.2 million | 2025-05 |
| Christine Ann Domestic Abuse Services Inc | Human services | 501(c)(3) | 1983 | $3.3 million | $14.5 million | 2024-12 |
| Paine Art Center & Gardens Inc | Arts, culture and humanities | 501(c)(3) | 1949 | $2.9 million | $25.9 million | 2025-12 |
| The Grand Oshkosh Inc | Arts, culture and humanities | 501(c)(3) | 1988 | $2.5 million | $1.9 million | 2025-06 |
| Covey Inc | Diseases, disorders and medical disciplines | 501(c)(3) | 1957 | $2.2 million | $4.9 million | 2025-12 |
| Habitat for Humanity of Oshkosh Inc | Housing and shelter | 501(c)(3) | 1987 | $2.1 million | $4.1 million | 2025-06 |
| Nova Counseling Services Inc | Mental health and crisis intervention | 501(c)(3) | 1973 | $2.1 million | $2.3 million | 2024-12 |
| Oshkosh Convention & Vistors Bureau Inc | 501(c)(6) | 1996 | $2 million | $3.3 million | 2025-12 | |
| Gabriels Villa Inc | Human services | 501(c)(3) | 1987 | $1.6 million | $1.9 million | 2024-12 |
| Evergreen Manor Foundation Inc | 501(c)(3) | 1981 | $1.6 million | $23.3 million | 2024-12 | |
| Solutions Recovery Inc | Mental health and crisis intervention | 501(c)(3) | 2005 | $1.6 million | $3.6 million | 2025-12 |
| Eaa Warbirds of America Inc | Arts, culture and humanities | 501(c)(3) | 1995 | $1.5 million | $2.7 million | 2026-02 |
| Father Carrs PL 2B | Human services | 501(c)(3) | 1980 | $1.5 million | $6 million | 2024-12 |
| Oshkosh Area United Way Inc | 501(c)(3) | 1963 | $1.4 million | $4 million | 2024-12 | |
| Oshkosh Chamber of Commerce | 501(c)(6) | 1939 | $1.3 million | $880,861 | 2025-09 | |
| Jericho Road Ministries Inc | Religion-related | 501(c)(3) | 2008 | $1.3 million | $4.7 million | 2025-12 |
| St Vincent de Paul Society of Oshkosh Inc | Human services | 501(c)(3) | 2019 | $1.2 million | $4.3 million | 2025-09 |
| International Union United Auto Aerospace & Agricultural Workers | 501(c)(5) | 1941 | $1.1 million | $1.8 million | 2025-12 | |
| Carmel Residence Inc | Housing and shelter | 501(c)(3) | 1988 | $1.1 million | $4 million | 2024-12 |
| Oshkosh Family Incorporated | Human services | 501(c)(3) | 1960 | $1 million | $4 million | 2024-12 |
| Oshkosh Area Community Property Corporation | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2010 | $1 million | $2 million | 2025-06 |
| Day By Day Warming Shelter Inc | Human services | 501(c)(3) | 2011 | $1 million | $4.8 million | 2025-06 |
| National Catholic Committee On Scouting LTD | Youth development | 501(c)(3) | 2023 | $977,567 | $6.2 million | 2024-12 |
| Wee Wisdom Day Care Center | 501(c)(3) | 1964 | $876,894 | $48,327 | 2023-12 | |
| Greater Oshkosh Economic Development Corporation | Community improvement and capacity building | 501(c)(6) | 2015 | $701,913 | $833,358 | 2025-12 |
| Simeanna Apartments Inc | 501(c)(3) | 1961 | $645,022 | $1.2 million | 2024-12 | |
| Simeanna III Inc | 501(c)(3) | 1961 | $633,475 | $1.1 million | 2024-12 | |
| Acton Academy Oshkosh Inc | Education | 501(c)(3) | 2021 | $609,854 | $207,916 | 2025-06 |
| Eaa Vintage Aircraft Association Incorporated | Education | 501(c)(3) | 1996 | $582,120 | $2.6 million | 2026-02 |
| Simeanna South Inc | 501(c)(3) | 1961 | $577,866 | $1.1 million | 2024-12 | |
| Winnebago Area Literacy Council | 501(c)(3) | 1994 | $558,231 | $1.2 million | 2025-12 | |
| Waterfest Inc | 501(c)(4) | 1995 | $547,235 | $7,144 | 2025-12 | |
| Orchard Valley Apts Inc | 501(c)(4) | 1979 | $514,135 | $819,573 | 2025-06 | |
| Smart Thinking Foundation Inc | Education | 501(c)(3) | 2020 | $501,783 | $667,522 | 2024-12 |
| International Aerobatic Club Inc | 501(c)(3) | 1985 | $479,516 | $559,465 | 2026-02 | |
| Christian Community Child Center Inc | Human services | 501(c)(3) | 2002 | $463,142 | $810,712 | 2025-12 |
| Lourdes Foundation Inc | Education | 501(c)(3) | 1980 | $446,609 | $5.1 million | 2025-06 |
| Oshkosh United Soccer Club Inc | Recreation and sports | 501(c)(3) | 2005 | $437,594 | $243,649 | 2025-07 |
| Winnebago County Fair Association | Recreation and sports | 501(c)(3) | 2006 | $393,443 | $489,880 | 2025-11 |
| Wings As Eagles Mission Air Service Inc | Religion-related | 501(c)(3) | 1998 | $386,101 | $442,277 | 2024-12 |
| Naturist Society Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2017 | $351,319 | $139,372 | 2024-12 |
| Guardian Payee Services Inc | Human services | 501(c)(3) | 1997 | $323,791 | $12,168 | 2024-12 |
| New Dawn Recovery Services Inc | Mental health and crisis intervention | 501(c)(3) | 2023 | $321,367 | $50,319 | 2025-12 |
| Miravida Living Foundation Inc | 501(c)(3) | 1988 | $305,593 | $4.6 million | 2024-12 | |
| Battle On Bago Foundation Inc | Education | 501(c)(3) | 2013 | $284,220 | $608,472 | 2024-12 |
| Oshkosh Chamber of Commerce Foundation Inc | Education | 501(c)(3) | 2002 | $246,842 | $350,604 | 2025-09 |
| Asia Frontier Outreach - USA Inc | Human services | 501(c)(3) | 2014 | $221,978 | $48,067 | 2025-12 |
| Cumberland Court Housing Commission Inc | Housing and shelter | 501(c)(3) | 1994 | $221,244 | $4.7 million | 2025-12 |
| Winnebago Conflict Resolution Center Inc | Housing and shelter | 501(c)(3) | 1995 | $213,642 | $430,504 | 2025-12 |
| Hooper Community Center Inc | Human services | 501(c)(3) | 1967 | $205,327 | $1 million | 2024-12 |
| Oshkosh Saturday Farmers Market Inc | Food, agriculture and nutrition | 501(c)(4) | 2016 | $187,984 | $70,250 | 2025-10 |
| Damascus Road Project Incorporated | Human services | 501(c)(3) | 2016 | $186,179 | $192,422 | 2024-12 |
| Winnegamie Home Builders Association Inc | 501(c)(6) | 1992 | $179,914 | $399,570 | 2025-08 | |
| Miss Wisconsin Pageant Inc | 501(c)(4) | 1972 | $175,210 | $101,992 | 2025-12 | |
| Greater Oshkosh Healthy Neighborhoods Incorporated | Community improvement and capacity building | 501(c)(3) | 2016 | $171,250 | $560,250 | 2025-12 |
| Wee Winni Childcare Center Inc | 501(c)(3) | 1991 | $165,963 | $822 | 2023-06 | |
| Jerusalem Cornerstone Foundation | Religion-related | 501(c)(3) | 2002 | $165,083 | $100,060 | 2024-12 |
| Community for Hope of Greater Oshkosh Inc | Mental health and crisis intervention | 501(c)(3) | 2002 | $163,213 | $146,823 | 2024-12 |
| History of Economics Society | Arts, culture and humanities | 501(c)(3) | 2003 | $155,825 | $1.3 million | 2025-05 |
| Benevolent & Protective Order of Elks of the USA | 501(c)(8) | 1951 | $154,286 | $478,947 | 2026-03 | |
| Oshkosh Yacht Club Inc | 501(c)(3) | 1985 | $146,484 | $567,753 | 2025-09 | |
| Journey Together Service Dog Inc | Animal-related | 501(c)(3) | 2015 | $144,616 | $563,999 | 2025-12 |
| Touch of Silver Twirling Corps LTD | Youth development | 501(c)(3) | 2000 | $138,295 | $242,691 | 2025-12 |
| Governmental Information Processing Association of Wisconsin LTD | Science and technology | 501(c)(6) | 2016 | $133,671 | $62,245 | 2025-12 |
| Oshkosh Area Youth Hockey Association LTD | Recreation and sports | 501(c)(3) | 2023 | $130,652 | $70,656 | 2025-05 |
| Nami Oshkosh Inc | 501(c)(3) | 1979 | $127,942 | $347,189 | 2025-12 | |
| Trio Young Scholars | Education | 501(c)(3) | 2022 | $121,023 | $19,165 | 2025-06 |
| The Masters Craftsmen Inc | Religion-related | 501(c)(3) | 2023 | $120,878 | $150,335 | 2024-12 |
| Winnebagoland BMX Club Inc | Recreation and sports | 501(c)(3) | 2014 | $117,938 | $187,958 | 2025-12 |
| Friends of the Oshkosh Seniors Center Inc | 501(c)(3) | 1987 | $115,658 | $284,709 | 2025-12 | |
| Oshkosh Kennel Club Inc | 501(c)(4) | 1964 | $115,435 | $329,337 | 2025-05 | |
| Wisconsin Trust for Historic Preservation Inc | Arts, culture and humanities | 501(c)(3) | 1987 | $108,463 | $119,681 | 2024-12 |
| Fast Club of Oshkosh Inc | Recreation and sports | 501(c)(3) | 2014 | $103,441 | $28,181 | 2024-12 |
| International Association of Fire Fighters | 501(c)(5) | 1940 | $100,858 | $240,275 | 2024-12 | |
| Marine Corps League | 501(c)(4) | 1946 | $96,375 | $119,713 | 2025-06 | |
| South Side Ice Yacht Club | 501(c)(7) | 1995 | $95,983 | $120,244 | 2025-12 | |
| Go-Edc Foundation | Community improvement and capacity building | 501(c)(3) | 2015 | $94,241 | $237,038 | 2025-12 |
| Rotary International | 501(c)(4) | 1942 | $90,789 | $67,580 | 2025-06 | |
| United Steelworkers | 501(c)(5) | 1940 | $89,158 | $224,316 | 2025-12 | |
| International Union United Auto Aerospace & Agricultural Workers | 501(c)(5) | 1941 | $87,073 | $254,477 | 2025-12 | |
| Saint Johns Child Care Learning Center | Human services | 501(c)(3) | 2002 | $84,774 | $0 | 2011-12 |
| Franki Muscato Foundation | Mental health and crisis intervention | 501(c)(3) | 2019 | $84,122 | $28,030 | 2025-12 |
| Cherith International Inc | International, foreign affairs and national security | 501(c)(3) | 2008 | $82,299 | $69,381 | 2024-12 |
| Winnebago County Sheriffs Professional Police Association Inc | Employment | 501(c)(5) | 2014 | $81,985 | $39,244 | 2024-12 |
| Military Veterans Museum Inc | 501(c)(3) | 1992 | $81,927 | $2.2 million | 2024-12 | |
| Feed the Body Feed the Soul Inc | Food, agriculture and nutrition | 501(c)(3) | 2019 | $80,550 | $91,436 | 2025-06 |
| American Black Belt Academy | Education | 501(c)(3) | 1995 | $80,044 | $23,608 | 2025-12 |
| Delta Sigma Phi Fraternity Inc | 501(c)(7) | 1969 | $76,678 | $28,735 | 2025-12 | |
| Amcor Supplemental Unemployment Benefit Plan | Mutual and membership benefit | 501(c)(17) | 2022 | $76,540 | $1 | 2025-12 |
| United Steelworkers | 501(c)(5) | 1940 | $75,957 | $196,449 | 2024-12 | |
| Oshkosh Flyers Football Club Inc | Recreation and sports | 501(c)(3) | 2012 | $75,734 | $137,580 | 2025-12 |
| Rotary International | 501(c)(4) | 1958 | $67,628 | $96,254 | 2026-06 | |
| Oshkosh Youth Symphony Inc | Arts, culture and humanities | 501(c)(3) | 2016 | $67,355 | $18,495 | 2024-12 |
| Reflections of Grace Performing Arts School Inc | Religion-related | 501(c)(3) | 2019 | $65,301 | $18,425 | 2024-12 |
| Wisconsin Apartment Assoc | 501(c)(6) | 1974 | $61,865 | $1,909 | 2023-12 | |
| Friends of Oshkosh Parks Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2004 | $60,142 | $328,265 | 2025-06 |
| Wisconsin Tavern League Foundation Inc | Public safety, disaster preparedness and relief | 501(c)(3) | 2011 | $59,745 | $147,913 | 2025-06 |
| Wisconsin Regional Service Office | Mental health and crisis intervention | 501(c)(3) | 2020 | $59,415 | $140,615 | 2024-12 |
| International Association of Sheet Metal Air Rail & Transportation | Employment | 501(c)(5) | 2015 | $58,833 | $72,722 | 2025-12 |
| Naturist Education Foundation Inc | Science and technology | 501(c)(3) | 1993 | $58,059 | $1.2 million | 2024-12 |
| Gold Standard Initiative Inc | Recreation and sports | 501(c)(3) | 2024 | $51,674 | $32,068 | 2025-12 |
| Hmong Service Center Inc | Human services | 501(c)(3) | 2014 | $44,460 | $287,858 | 2025-12 |
| Learning Collaborative | Education | 501(c)(3) | 2024 | $43,613 | $16,492 | 2024-12 |
| Oshkosh West Booster Club Inc | Education | 501(c)(3) | 2010 | $42,041 | $55,445 | 2025-12 |
| American Legion | 501(c)(19) | 1946 | $36,469 | $1.6 million | 2023-05 | |
| Sweet Adelines International | Arts, culture and humanities | 501(c)(3) | 1955 | $35,923 | $29,915 | 2025-04 |
| Sokol Sokolice - Milwaukee | Recreation and sports | 501(c)(3) | 1965 | $34,447 | $311,687 | 2024-12 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $31,283 | $147,671 | 2025-06 |
| Oshkosh Mid-Morning Kiwanis Foundation Inc | Community improvement and capacity building | 501(c)(3) | 2011 | $28,592 | $102,181 | 2025-12 |
| Gamma Phi Beta Sorority Inc | 501(c)(7) | 1940 | $26,091 | $2,884 | 2024-07 | |
| Fraternal Order of Eagles | 501(c)(8) | 1991 | $19,319 | $115,869 | 2025-05 | |
| Oshkosh Gun Club Inc | 501(c)(7) | 1965 | $16,895 | $17,214 | 2025-12 | |
| Operation Dream North Inc | Youth development | 501(c)(3) | 2024 | $12,525 | $107 | 2024-04 |
| Helping Handz All Ways | Human services | 501(c)(3) | 2022 | $8,504 | $3,509 | 2024-12 |
| Oshkosh Football Group Inc | Recreation and sports | 501(c)(3) | 2022 | $7,061 | $3,963 | 2024-12 |
| Winnebago Conservation Club Inc | Environment | 501(c)(3) | 2014 | $6,877 | $6,598 | 2024-12 |
| American Production and Inventory Control Society Fox Valley Chapter | 501(c)(6) | 1981 | $5,174 | $17,680 | 2025-06 | |
| Agape International Ministries Inc | Religion-related | 501(c)(3) | 1998 | |||
| All Saints Lutheran Church | 501(c)(3) | 1988 | 2013-12 | |||
| Altrusa International Foundation Inc | Education | 501(c)(3) | 1985 | $0 | $0 | 2026-05 |
| Altrusa International Inc | 501(c)(4) | 1944 | $0 | $0 | 2026-05 | |
| American Association of University Women | 501(c)(4) | 2010 | $0 | $0 | 2026-06 | |
| American Federation of State County & Municipal Employees | 501(c)(5) | 1957 | $0 | $0 | 2024-12 | |
| American Postal Workers Union | 501(c)(5) | 1973 | $0 | $0 | 2025-12 | |
| Amvets | 501(c)(19) | 1970 | $0 | $0 | 2025-08 | |
| Amvets | 501(c)(19) | 1945 | $0 | $0 | 2025-05 | |
| Anchor of Truth Inc | Religion-related | 501(c)(3) | 1999 | |||
| Apostolic Believers Inc | 501(c)(3) | 1990 | ||||
| Artspace Collective Inc | Arts, culture and humanities | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Bago Tracks and Trails Limited | Recreation and sports | 501(c)(3) | 2020 | $0 | $0 | 2024-12 |
| Bah Soh Ghay Karen Bapist Church Co RP | Religion-related | 501(c)(3) | 2026 | |||
| Baptist Couriers for Christ Inc | Religion-related | 501(c)(3) | 2024 | |||
| Bearing Precious Seed Inc | Religion-related | 501(c)(3) | 2025 | |||
| Bemis Company Foundation | 501(c)(3) | 1961 | $97,914 | 2024-12 | ||
| Beta Alpha Psi National Council | 501(c)(3) | 1974 | $0 | $0 | 2026-04 | |
| Beta Theta Pi Fraternity | 501(c)(7) | 1967 | ||||
| Bethel Worship Center | Religion-related | 501(c)(3) | 2010 | |||
| Bethlehem Lutheran Church | 501(c)(3) | 1966 | ||||
| Bloomtime Corp | Youth development | 501(c)(3) | 2019 | $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 | 501(c)(1) | 2014 | ||||
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(1) | 2014 | |||
| 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 | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2024-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-10 |
| 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 | 2023-06 |
| Board of Regents of the University of Wisconsin System | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2024-06 |
| 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)(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 | Youth development | 501(c)(3) | 2014 | $0 | $0 | 2025-06 |
| Board of Regents of the University of Wisonsin System | 501(c)(1) | 2014 | ||||
| Brandan Kalmerton Foundation Inc | Human services | 501(c)(3) | 2015 | $0 | $0 | 2023-12 |
| Burning Hearts Disciples | Religion-related | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Calvary Mission Center Inc 90 S Macy St | 501(c)(3) | 1989 | ||||
| Capstone Consulting Inc | Education | 501(c)(3) | 2022 | $1 | 2025-12 | |
| Carl Traeger PSG Carl Traeger Elementary School | Education | 501(c)(3) | 2011 | $0 | $0 | 2025-08 |
| Chai Abroad Foundation for Education Inc | Education | 501(c)(3) | 2026 | |||
| Christ Evangelical Lutheran Church | 501(c)(3) | 1988 | ||||
| Christ Our Savior Lutheran Church | 501(c)(3) | 1987 | ||||
| Christian Faith Fellowship Church Oshkosh Inc | Religion-related | 501(c)(3) | 2007 | |||
| Collaborative Wellness Inc | Health care | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Community Campus Mission of Oshkosh Inc | 501(c)(3) | 1982 | ||||
| Community Church | 501(c)(3) | 1972 | ||||
| Converge-A Chi Alpha Campus Ministry at Uw-Oshkosh | 501(c)(3) | 1964 | ||||
| Cornerstone Ministries Inc | Religion-related | 501(c)(3) | 2013 | |||
| Countryside Christian Church | Religion-related | 501(c)(3) | 1998 | |||
| Cross & Crown Alliance Church | 501(c)(3) | 1972 | ||||
| David B Tyriver Memorial Foundation Inc | 501(c)(3) | 1994 | $0 | $0 | 2025-12 | |
| Delta Sigma Phi Fraternity Inc | Education | 501(c)(7) | 2025 | |||
| Dime Ministries Inc | Religion-related | 501(c)(3) | 2018 | $0 | $0 | 2025-12 |
| Disabled American Veterans | 501(c)(4) | 1942 | $0 | $0 | 2026-06 | |
| Disabled American Veterans | 501(c)(4) | 1942 | $0 | $0 | 2024-06 | |
| Disabled American Veterans Auxiliary Inc | 501(c)(4) | 1973 | $0 | $0 | 2025-06 | |
| Downtown Oshkosh Inc | Community improvement and capacity building | 501(c)(3) | 2025 | |||
| E B Davis Childrens Home Inc | 501(c)(3) | 1946 | $1.7 million | 2024-08 | ||
| East Central Wisconsin Emergencycommunications Incorporated | Public safety, disaster preparedness and relief | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Elks Ladies of Oshkosh Lodge 292 Inc | 501(c)(10) | 1992 | $0 | $0 | 2026-05 | |
| Embroiderers Guild of America Inc | 501(c)(3) | 1976 | ||||
| Encore Handbell Ensemble | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2026-06 |
| Episcopal Diocese of Milwaukee Inc | 501(c)(3) | 1940 | 2025-12 | |||
| Evergreen Communities Inc | Housing and shelter | 501(c)(3) | 2022 | $0 | $1 | 2024-12 |
| Excellence in Leadership Inc | Public and societal benefit | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Excutive Womens Golf Association Inc | Community improvement and capacity building | 501(c)(6) | 1997 | $0 | $0 | 2025-12 |
| Experimental Aircraft Association Steve Wittman Chapter 252 | Arts, culture and humanities | 501(c)(3) | 2010 | $0 | $0 | 2025-12 |
| Faith Christian Center Pentecostal Church of God Inc | 501(c)(3) | 1959 | ||||
| Faith Lutheran Church | 501(c)(3) | 1966 | ||||
| Fox Cities Roller Derby Inc | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Fox Valley Performance Paddlers Inc | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Fraternal Order of Eagles | 501(c)(8) | 1991 | $0 | $0 | 2025-05 | |
| Fridays Hero Squad Inc | Human services | 501(c)(3) | 2025 | |||
| Friends of Oshkosh Community Media Inc | Recreation and sports | 501(c)(4) | 1999 | $0 | $0 | 2025-08 |
| Friends of the Oshkosh Public Libra Ry Inc | Education | 501(c)(3) | 2026 | |||
| Glacial Lake 4X4 Inc | Recreation and sports | 501(c)(7) | 2022 | $0 | $0 | 2024-12 |
| Glad Tidings Tabernacle Inc | 501(c)(3) | 1978 | ||||
| Good Shepard Lutheran Church of Oshkosh | 501(c)(3) | 1941 | 2015-12 | |||
| Grace Lutheran Church | 501(c)(3) | 1966 | ||||
| Gramie Jean Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2009 | $1.4 million | 2025-12 | |
| Growing Oshkosh Inc | Food, agriculture and nutrition | 501(c)(3) | 2013 | $0 | $0 | 2024-12 |
| Guardians Elite Travel BB | Recreation and sports | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Harenburg Family Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2017 | $568,577 | 2025-12 | |
| Harmony and Hounds Inc | Health care | 501(c)(3) | 2021 | $0 | $0 | 2023-12 |
| His Church World Outreach Center | 501(c)(3) | 1994 | ||||
| Hmong Lutheran Outreach Church | 501(c)(3) | 1941 | $0 | $0 | 2025-12 | |
| Holy of Holies | Religion-related | 501(c)(3) | 2005 | |||
| Homestead Solutions Inc | Human services | 501(c)(3) | 2008 | $0 | $0 | 2025-12 |
| Hope in the Pasture | Animal-related | 501(c)(3) | 2026 | |||
| Horizons Oshkosh Corporation | Housing and shelter | 501(c)(3) | 2025 | |||
| Ian David Rucker Foundation Inc | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Immanuel Lutheran Church | 501(c)(3) | 1966 | ||||
| Impact Elite Athletics Booster Club Inc | Community improvement and capacity building | 501(c)(4) | 2024 | $0 | $0 | 2025-12 |
| International Union United Auto Aerospace & Ag WRKRS of Amer | 501(c)(5) | 1941 | $0 | $0 | 2025-12 | |
| International Union United Auto Aerospace & Agricultural Workers | 501(c)(5) | 1941 | $0 | $0 | 2025-12 | |
| International Youth Sailing of Oshkosh LTD | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Jambalaya Arts Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Jefferson Elementary School Pto Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2026-06 |
| Jerry Peppler Memorial Scholarship Fund | Education | 501(c)(3) | 2004 | $0 | $0 | 2025-12 |
| Jesuit Retreat House | 501(c)(3) | 1946 | ||||
| Jesus Christ Full Gospel Ministry | Religion-related | 501(c)(3) | 2014 | $0 | $0 | 2025-12 |
| Johnson Youth Foundation Inc | Youth development | 501(c)(3) | 2025 | |||
| King of Glory Fellowship | 501(c)(3) | 1991 | ||||
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2025-09 | |
| Kiwanis International Inc | 501(c)(4) | 1940 | $0 | $0 | 2025-09 | |
| Knights Templar of the United States of America | 501(c)(10) | 1972 | $0 | $0 | 2025-06 | |
| Lakeshore Club of Oshkosh Inc | 501(c)(7) | 1935 | $0 | $0 | 2025-11 | |
| Lakeside Elementary Pto | Education | 501(c)(3) | 2025 | $0 | $0 | 2026-06 |
| League of Women Voters of Wisconsin Inc | Civil rights, social action and advocacy | 501(c)(3) | 2011 | $0 | $0 | 2025-03 |
| Learn 2 Fish With Us Inc | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Lebelle-Smith Scholarship Fund Inc | Education | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Like A Prayer Foundation Inc | Health care | 501(c)(3) | 2015 | $0 | $0 | 2024-12 |
| Living Stone Church | 501(c)(3) | 1974 | ||||
| Living Water Lutheran Church | 501(c)(3) | 1966 | ||||
| Lords Highlands Inc | 501(c)(3) | 1994 | ||||
| Lourdes Academy of Oshkosh Wisconsin Inc | 501(c)(3) | 1946 | ||||
| Love the Mess Inc | Human services | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Lutheran Campus Ministry-Oshkosh Inc | 501(c)(3) | 1988 | ||||
| Madranite Circles Church | 501(c)(3) | 1977 | ||||
| Marine Corps League | 501(c)(4) | 1946 | $0 | $0 | 2026-06 | |
| Marine Corps League National Headquarters | 501(c)(4) | 1946 | $0 | $0 | 2026-06 | |
| Martin Luther Lutheran Church | 501(c)(3) | 1966 | 2013-12 | |||
| Masonic Building Association Inc | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Midwestern Association of Chemistry Teachers in Liberal Arts Colleges | Education | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Miss Oshkosh Scholarship Organization | Education | 501(c)(3) | 2025 | |||
| Modern Woodmen of America | 501(c)(8) | 1961 | $0 | $0 | 2025-12 | |
| Mosaic Church | 501(c)(3) | 1963 | ||||
| Most Blessed Sacrament Parish | 501(c)(3) | 1946 | 2014-06 | |||
| Music Teachers National Association Inc | 501(c)(3) | $0 | $0 | 2026-06 | ||
| National Active and Retired Federal Employees Association | 501(c)(5) | 1967 | $0 | $0 | 2025-12 | |
| National Air Traffic Controllers Association | 501(c)(5) | 1990 | $0 | $0 | 2025-12 | |
| National Association of Letter Carriers | 501(c)(5) | 1940 | $0 | $0 | 2025-12 | |
| National Indian Youth Justice Acade My Inc | Youth development | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| National Society of the Sons of the American Revolution | 501(c)(3) | 1944 | $0 | $0 | 2025-12 | |
| Naturist Action Committee Inc | 501(c)(4) | 1996 | $0 | $0 | 2025-12 | |
| Neenah Dance Program Inc | Education | 501(c)(3) | 2026 | |||
| New Life Community Church | 501(c)(3) | 1964 | 2016-12 | |||
| Newman Center of Oshkosh Inc | 501(c)(3) | 1946 | ||||
| Newman Center of Oshkosh Inc | 501(c)(3) | 1946 | 2014-06 | |||
| Northeast Wisconsin Rainbow Collective Inc | Civil rights, social action and advocacy | 501(c)(3) | 2025 | |||
| Nourishment and Coats Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2025 | $0 | $0 | 2024-12 |
| Oakbrook Evangelical Free Church of Oshkosh Wisconsin Inc | 501(c)(3) | 1965 | ||||
| Oakhaven Church | 501(c)(3) | 1977 | ||||
| Oaklawn Cemetery Association | 501(c)(13) | 1966 | $0 | $0 | 2025-12 | |
| Oakwood Elementary Parent Teacher Organization Incorporated | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-06 |
| Oakwood Improvement Association | 501(c)(4) | 1945 | $0 | $0 | 2026-07 | |
| Omni Glass and Paint Inc Veba Health Savings Trust | Mutual and membership benefit | 501(c)(9) | 2010 | $0 | $0 | 2025-12 |
| One of Us Inc | Human services | 501(c)(3) | 2026 | |||
| Order of St Alban Inc | Youth development | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Oshkosh Area Economic Development Corp | 501(c)(4) | 1989 | $0 | $0 | 2025-09 | |
| Oshkosh Area Womens Association Inc | 501(c)(4) | 1998 | $0 | $0 | 2025-12 | |
| Oshkosh Benevolent Social Club Inc | Public and societal benefit | 501(c)(3) | 2016 | $0 | $0 | 2025-09 |
| Oshkosh Chamber Singers Incorporated | 501(c)(3) | 1988 | $0 | $0 | 2026-06 | |
| Oshkosh Child Development Center Inc | Human services | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Oshkosh Corporation Foundation Inc | 501(c)(3) | 1965 | $253,062 | 2025-12 | ||
| Oshkosh Cultural Arts Coalition Inc | Arts, culture and humanities | 501(c)(3) | 2022 | $0 | $0 | 2024-12 |
| Oshkosh Cycling Club | Recreation and sports | 501(c)(4) | 2015 | $0 | $0 | 2024-12 |
| Oshkosh Eagles Football Club | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Oshkosh Fine Arts Association Inc | 501(c)(3) | 1978 | $0 | $0 | 2025-12 | |
| Oshkosh Firefighters Charitable Trust | Human services | 501(c)(3) | 2011 | $0 | $0 | 2026-05 |
| Oshkosh Ice Hawks Hockey Boosters Inc | 501(c)(3) | 2020 | $0 | $0 | 2026-03 | |
| Oshkosh Into the Night Inc | Arts, culture and humanities | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Oshkosh Jazz Inc | Arts, culture and humanities | 501(c)(3) | 2024 | |||
| Oshkosh Kids Museum Inc | Education | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Oshkosh Kiwanis Foundation Incorporated | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 1998 | $0 | $0 | 2025-12 |
| Oshkosh Legion Baseball Association Inc | Recreation and sports | 501(c)(3) | 2005 | $0 | $0 | 2025-12 |
| Oshkosh North Baseball Inc | Recreation and sports | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Oshkosh Northside Hoops Club Inc | Recreation and sports | 501(c)(3) | 2012 | $0 | $0 | 2024-12 |
| Oshkosh Opportunities Inc | Public and societal benefit | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Oshkosh Police Benevolent Association | Health care | 501(c)(4) | 1999 | $0 | $0 | 2025-12 |
| Oshkosh Power Boat Club | 501(c)(7) | 1975 | $0 | $0 | 2025-12 | |
| Oshkosh Pride Inc | Human services | 501(c)(3) | 2024 | $0 | $0 | 2025-04 |
| Oshkosh Professional Police Association | Employment | 501(c)(5) | 2014 | $0 | $0 | 2025-12 |
| Oshkosh Public Museum Auxiliary | Arts, culture and humanities | 501(c)(3) | 2003 | $0 | $0 | 2025-12 |
| Oshkosh Raptors | Recreation and sports | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Oshkosh Safety Council | Community improvement and capacity building | 501(c)(4) | 2026 | $0 | $0 | 2025-12 |
| Oshkosh Spartan Wrestling Club | Recreation and sports | 501(c)(3) | 2014 | $0 | $0 | 2025-10 |
| Oshkosh Symphony Orchestra | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2024-06 |
| Oshkosh Tennis Association Inc | Recreation and sports | 501(c)(3) | 2009 | $0 | $0 | 2024-12 |
| Oshkosh Tool Library | Education | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Oshkosh Warbirds Squadron 32 | Education | 501(c)(3) | 2023 | $0 | $0 | 2025-12 |
| Oshkosh Wild Wrestling | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2023-12 |
| Oshkosh Youth Baseball Inc | Recreation and sports | 501(c)(3) | 2018 | $0 | $0 | 2023-12 |
| Oshkosh Youth Choir Limited | Arts, culture and humanities | 501(c)(3) | 2025 | |||
| Oshkosh Youth Tag Rugby Inc | Recreation and sports | 501(c)(3) | 2023 | $0 | $0 | 2026-01 |
| Oshkosh Youth Wrestling Club Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-10 |
| Oshkosh Zoological Society Inc | Animal-related | 501(c)(3) | 1981 | $0 | $0 | 2025-12 |
| Outreach Oshkosh Inc | 501(c)(3) | 1966 | ||||
| Palliative Care Network of Wisconsin Inc | Health care | 501(c)(3) | 2015 | $0 | $0 | 2025-12 |
| Partners of Wisconsin Health & Hospital Association Inc | 501(c)(4) | 1984 | $0 | $0 | 2025-12 | |
| Pathways To Christ Retreat | Religion-related | 501(c)(3) | 2023 | $19,226 | 2025-12 | |
| Pdsfusion Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Peniel Welsh Chapel Association | Religion-related | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Pentecostal Church of God Gospel Mission | 501(c)(3) | 1959 | ||||
| Plainfield Gospel Lighthouse Inc | 501(c)(3) | 1994 | ||||
| Portciuncula Oratory Inc | Education | 501(c)(3) | 2026 | |||
| Portico Church | Religion-related | 501(c)(3) | 2016 | |||
| Psi Chi the International Honor Society in Psychology | 501(c)(3) | 1971 | $0 | $0 | 2025-06 | |
| Redemptions Recovery Inc | Mental health and crisis intervention | 501(c)(3) | 2025 | |||
| Reformation Ev Lutheran Church | 501(c)(3) | 1977 | ||||
| Revival Unity International Church Corporation | Religion-related | 501(c)(3) | 2023 | $0 | $0 | 2024-12 |
| Rising Son Campus Ministry | 501(c)(3) | 1966 | ||||
| River of Life Fellowship | Religion-related | 501(c)(3) | 2003 | |||
| Rogers Rabbit Rescue | Animal-related | 501(c)(3) | 2026 | $0 | $0 | 2025-12 |
| Rosemaling Coast To Coast Inc | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Royal Arch Masons of the State of Wisconsin | 501(c)(10) | 1973 | $0 | $0 | 2025-04 | |
| Ruccia Guild School of Advanced Musculoskeletal Treatment Methods | Medical research | 501(c)(3) | 2024 | $0 | $0 | 2024-12 |
| Saint Gianna Molla Guild of Northeast Wisconsin Inc | 501(c)(3) | 1946 | $0 | $0 | 2025-06 | |
| Santas Closet of Winnebago County Inc | Food, agriculture and nutrition | 501(c)(3) | 2000 | $0 | $0 | 2023-12 |
| Saxeville Historical Society Inc | Arts, culture and humanities | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Sepo Inc | International, foreign affairs and national security | 501(c)(3) | 2018 | $0 | $0 | 2024-12 |
| Service League | 501(c)(3) | 1983 | $0 | $0 | 2025-10 | |
| Shapiro Whirlwinds Pto Inc | Education | 501(c)(3) | 2023 | $0 | $0 | 2026-06 |
| Sigma Pi Fraternity International Inc | 501(c)(7) | 1940 | $0 | $0 | 2025-12 | |
| Sigma Sigma Sigma Inc | 501(c)(7) | 1943 | ||||
| Sigma Theta Tau Inc | 501(c)(3) | 1954 | $0 | $0 | 2025-06 | |
| Silver Star Brands Foundation Inc | 501(c)(3) | 1953 | $790,216 | 2025-12 | ||
| Snitz Club of Oshkosh Inc | Recreation and sports | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Snowmobile Club of Pickett Inc | 501(c)(4) | 1992 | $0 | $0 | 2026-06 | |
| Sonrise Mission Inc | Religion-related | 501(c)(3) | 2014 | 2023-12 | ||
| Sons of Union Veterans of the Civil War | 501(c)(4) | 1941 | $0 | $0 | 2025-12 | |
| Spiritual Assembly of the Bahais of Oshkosh | 501(c)(3) | 1965 | ||||
| Spring Brook Pit Stoppers Inc | 501(c)(7) | 1977 | $0 | $0 | 2025-08 | |
| St Andrews Ev Lutheran Church | 501(c)(3) | 1988 | ||||
| St Johns Evangelical Lutheran Church | 501(c)(3) | 1988 | ||||
| St Johns Lutheran Church | 501(c)(3) | 1988 | ||||
| St Jude the Apostle Parish | 501(c)(3) | 1946 | 2013-12 | |||
| St Pauls United Church of Christ | 501(c)(3) | 1984 | $0 | $0 | 2025-12 | |
| St Raphael the Archangel Catholic Church | 501(c)(3) | 2014-06 | ||||
| Stoney Ridge Wildlife Rehab Inc | Animal-related | 501(c)(3) | 2022 | $0 | $0 | 2025-12 |
| Sunnyview Christian Church | 501(c)(3) | 1977 | ||||
| Sunset Bay Association Incorporated | 501(c)(3) | 2021 | $0 | $0 | 2025-12 | |
| Take Heart America | Education | 501(c)(3) | 2008 | $0 | $0 | 2024-12 |
| Teachers Closet | Education | 501(c)(3) | 2015 | $0 | $0 | 2025-05 |
| Tech for Vets Inc | Public and societal benefit | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Tempo Fox Valley Inc | Community improvement and capacity building | 501(c)(6) | 2010 | $0 | $0 | 2025-06 |
| The Jek Foundation Inc | Philanthropy, voluntarism and grantmaking foundations | 501(c)(3) | 2000 | $36.1 million | 2024-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Toastmasters International | 501(c)(3) | 1945 | $0 | $0 | 2025-12 | |
| Trekking Grounds Foundation Inc | Environment | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Trinity Evangelical Lutheran Church | 501(c)(3) | 1941 | 2013-12 | |||
| Trout Unlimited | 501(c)(3) | 1972 | $0 | $0 | 2026-03 | |
| Turbo Flyers Club Inc | Recreation and sports | 501(c)(7) | 2000 | $0 | $0 | 2025-12 |
| Twentieth Century Club Inc | 501(c)(7) | 1938 | $0 | $0 | 2026-04 | |
| Twin Oaks Snowmobile Club Incorpora Ted | Recreation and sports | 501(c)(3) | 2026 | |||
| United Grand Imperial Coun Knights of Red Cross of Constantine | 501(c)(8) | 1960 | $0 | $0 | 2025-12 | |
| United States Power Squadrons | 501(c)(3) | 1949 | $0 | $0 | 2026-03 | |
| United Veterans Honor Guard | Public and societal benefit | 501(c)(19) | 2024 | $0 | $0 | 2024-12 |
| University of Wisconsin-Oshkosh Alumni Association | 501(c)(3) | 1946 | $0 | $0 | 2026-06 | |
| Valley Jazz Institute Inc | Arts, culture and humanities | 501(c)(3) | 2026 | |||
| Veterans of Foreign Wars of the United States Dept of Wisconsin | Public and societal benefit | 501(c)(19) | 1973 | $0 | $0 | 2025-06 |
| Veterans of Foreign Wars of the United States Dept of Wisconsin | 501(c)(19) | 1973 | $0 | $0 | 2026-06 | |
| Veterans of Foreign Wars of the Us Auxiliary To Heart of the Valley | Public and societal benefit | 501(c)(19) | 1973 | $0 | $0 | 2026-06 |
| Victory Baptist Church Inc of Oshkosh | 501(c)(3) | 1990 | ||||
| Vietnam Veterans of America Inc | 501(c)(19) | 1984 | $0 | $0 | 2026-02 | |
| Village University Inc | Housing and shelter | 501(c)(3) | 2026 | |||
| Water Cities Soccer Club | Recreation and sports | 501(c)(3) | 2023 | $37,754 | 2024-12 | |
| Water City Care Mission Inc | Human services | 501(c)(3) | 2020 | $0 | $0 | 2023-09 |
| Water City Church | 501(c)(3) | 1964 | ||||
| We-Pray Inc | Religion-related | 501(c)(3) | 2024 | $0 | $0 | 2025-12 |
| Wesley United Methodist Church | 501(c)(3) | 1974 | 2010-12 | |||
| Western Fraternal Life Association | 501(c)(8) | 1972 | $0 | $0 | 2025-12 | |
| Winnebago Audubon Society Inc | 501(c)(3) | 1982 | $0 | $0 | 2026-04 | |
| Winnebago Community Rugby | Community improvement and capacity building | 501(c)(3) | 2026 | |||
| Winnebago County Dare Board Inc | Mental health and crisis intervention | 501(c)(3) | 2016 | $0 | $0 | 2025-12 |
| Winnebago County Hce | 501(c)(3) | 1988 | $0 | $0 | 2025-12 | |
| Winnebago County Historical and Archeological Society Inc | 501(c)(3) | 1974 | $0 | $0 | 2026-05 | |
| Winnebago County Sheriffs Citizens Academy Alumni Association Inc | Crime and legal-related | 501(c)(3) | 2020 | $0 | $0 | 2025-12 |
| Winnebago Countywide Crime Stoppers Inc | 501(c)(3) | 1993 | $0 | $0 | 2024-12 | |
| Winnebago Media Group Inc | Arts, culture and humanities | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Winnebago Radio Control Flyers Inc | Recreation and sports | 501(c)(7) | 2010 | $0 | $0 | 2025-12 |
| Winnebago Sno-Pioneers Inc | Recreation and sports | 501(c)(3) | 2019 | $0 | $0 | 2025-12 |
| Winnebagoland Marines Inc | 501(c)(2) | 1979 | $0 | $0 | 2026-06 | |
| Winneconne Road Runners | Education | 501(c)(3) | 2017 | $0 | $0 | 2025-12 |
| Winneconne Youth Rugby Inc | Recreation and sports | 501(c)(3) | 2021 | $0 | $0 | 2024-12 |
| Wisconsin Association-Medical Staff Services Inc | Health care | 501(c)(4) | 2006 | $0 | $0 | 2025-12 |
| Wisconsin Berry Growers Association | 501(c)(5) | 1987 | $0 | $0 | 2024-12 | |
| Wisconsin Coalition for Universal Healthcare Now Inc | Health care | 501(c)(3) | 2025 | $0 | $0 | 2025-12 |
| Wisconsin College Personnel Association Inc | Education | 501(c)(3) | 2009 | $0 | $0 | 2026-06 |
| Wisconsin Dockdogs Inc | Recreation and sports | 501(c)(4) | 2018 | $0 | $0 | 2025-12 |
| Wisconsin Forensic Coaches Association | 501(c)(3) | 1986 | $0 | $0 | 2026-06 | |
| Wisconsin Fresh Market Vegetable | Food, agriculture and nutrition | 501(c)(4) | 2013 | $0 | $0 | 2024-12 |
| Wisconsin Garden Club Federation | Environment | 501(c)(3) | 2005 | $0 | $0 | 2026-05 |
| Wisconsin Garden Club Federation | Environment | 501(c)(3) | 2005 | $0 | $0 | 2026-05 |
| Wisconsin Interfaith Needs Response Inc | Human services | 501(c)(3) | 1999 | |||
| Wisconsin Law Enforcement Accreditation Group Inc | Crime and legal-related | 501(c)(3) | 2011 | $0 | $0 | 2025-12 |
| Wisconsin Outdoor Festival Inc | Arts, culture and humanities | 501(c)(3) | 2017 | $0 | $0 | 2023-12 |
| Wisconsin Rebels Fastpitch Softball | Youth development | 501(c)(3) | 2024 | $0 | $0 | 2025-05 |
| Wisconsin Rugby Football Union Inc | Recreation and sports | 501(c)(3) | 2000 | $0 | $0 | 2024-12 |
| Women in Aviation International | Education | 501(c)(3) | 2003 | $0 | $0 | 2025-09 |
| Word Revelation Church | 501(c)(3) | 1977 | ||||
| Workers United | 501(c)(5) | 2010 | $0 | $0 | 2025-12 | |
| Wyldewood Baptist Church Inc | 501(c)(3) | 1977 | 2023-12 | |||
| Wyldewood Christian School Inc | Education | 501(c)(3) | 2023 | |||
| York Rite Library and Museum Inc | Education | 501(c)(3) | 2002 | $0 | $0 | 2025-12 |
By cause in Oshkosh, WI
- Education 39
- Recreation and sports 39
- Human services 28
- Youth development 28
- Arts, culture and humanities 26
- Religion-related 25
- Community improvement and capacity building 10
- Philanthropy, voluntarism and grantmaking foundations 8
- Mental health and crisis intervention 8
- Public and societal benefit 7
- Health care 7
- Housing and shelter 7
- Food, agriculture and nutrition 6
- Animal-related 6
- Environment 4
- Science and technology 3
- Employment 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.