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Data / Nonprofits / Wisconsin / Fort Atkinson

Nonprofits in Fort Atkinson, WI: 122 registered with the IRS

122 nonprofits are registered with the IRS in Fort Atkinson, WI, 97 of them 501(c)(3) charities; the 34 that report revenue took in $201.8 million. The largest by revenue: Fort Healthcare Inc ($166.7 million), Opportunities Inc of Jefferson County ($20.9 million), Badgerland After School Enrichment Program Inc ($5 million). Most common causes: recreation and sports (17), education (16), human services (9).

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

OrganizationCategoryTypeSinceRevenueAssetsFiling
Fort Healthcare IncHealth care501(c)(3)1944$166.7 million$338 million2025-09
Opportunities Inc of Jefferson County501(c)(3)1967$20.9 million$96.8 million2024-12
Badgerland After School Enrichment Program IncEducation501(c)(3)2019$5 million$4.6 million2025-12
Fort Atkinson Community FoundationPhilanthropy, voluntarism and grantmaking foundations501(c)(3)1974$2.9 million$41.9 million2025-06
Rock River Heritage IncArts, culture and humanities501(c)(3)2012$1.3 million$4 million2025-12
National Niemann-Pick Disease FoundationMedical research501(c)(3)1993$929,337$981,2652025-12
Fort Memorial Hospital Foundation IncHealth care501(c)(3)1983$777,317$12.1 million2025-09
Fort Atkinson Chamber of Commerce501(c)(6)1944$502,100$851,9812025-12
St Vincent de Paul Fort Atkinson IncHuman services501(c)(3)2020$335,548$876,8982024-12
Evergreen Cemetery AssociationMutual and membership benefit501(c)(13)1941$287,350$1.8 million2024-12
Jefferson County Cancer CoalitionHealth care501(c)(3)2014$248,033$261,3542025-12
Salty Earth Pictures IncArts, culture and humanities501(c)(3)2003$214,992$443,8402025-12
Fort Atkinson Historical SocietyArts, culture and humanities501(c)(3)1968$195,649$1.9 million2025-12
Fort Atkinson Youth Soccer AssociationRecreation and sports501(c)(3)2018$157,018$112,8922025-12
Fort Atkinson Food PantryFood, agriculture and nutrition501(c)(3)2011$147,981$225,7442025-12
Parents Cooperative Preschool501(c)(3)1992$133,136$46,8962025-08
Junior Blackhawk BaseballRecreation and sports501(c)(3)2011$114,772$23,1412025-12
Ten Minas MinistriesHuman services501(c)(3)2021$100,516$349,5422025-12
Fort Healthcare Partners501(c)(3)1966$90,599$68,5732025-09
Fort Atkinson Music Boosters AssociationEducation501(c)(3)2014$89,265$119,2752025-08
Paddys Paws IncAnimal-related501(c)(3)2015$85,195$32,4172025-12
National Dairy Shrine501(c)(3)1953$83,723$2.3 million2023-12
American Legion501(c)(19)1946$82,648$331,3642025-07
Fort Atkinson High School Alumni Association FoundationEducation501(c)(3)1993$81,728$1.5 million2025-12
Shield of Sisters IncHuman services501(c)(3)2022$63,524$9,2262026-06
Homeless Coalition of Fort AtkinsonHuman services501(c)(3)2019$59,010$194,0722025-12
L & L Sports IncRecreation and sports501(c)(3)2014$56,100$12025-05
A-Team Grassroots System Inc501(c)(4)2018$50,003$12024-12
International Association of Lions Clubs501(c)(4)1940$49,857$118,3492025-06
Fort Atkinson Boys Basketball Association IncRecreation and sports501(c)(3)2016$43,272$4,2152026-05
Fort Atkinson Wisconservation Club IncEnvironment501(c)(3)1997$39,459$83,5022025-03
Union Cemetery Association of OaklandMutual and membership benefit501(c)(13)2012$33,978$505,3392024-12
Veterans of Foreign Wars of the United States Dept of Wisconsin501(c)(19)1973$15,075$385,9462025-06
Homeschool America Foundation IncEducation501(c)(3)2007$3,700$35,3802024-12
American Association of Healthcare Administrative Management501(c)(6)1975$0$02024-12
American Association of University Women501(c)(4)2010$0$02025-06
American Legion Auxiliary501(c)(19)1946$0$02025-12
Annual Fort Youth Fishing Derby IncYouth development501(c)(3)2025$0$02025-12
Bachana IncReligion-related501(c)(3)2016$0$02025-12
Bark River Woods Historical Society IncArts, culture and humanities501(c)(3)2016$0$02025-08
Barrie Elementary Parent Teacher OrganizationEducation501(c)(3)2014$0$02025-07
Bethany Lutheran Church501(c)(3)1966
Bill Juoni Fresh Fire Ministries IncReligion-related501(c)(3)1999$0$02025-12
Blackhawk Booster Club IncEducation501(c)(3)2014$0$02025-06
Blackhawks Youth Lady Basketball IncRecreation and sports501(c)(3)2025$0$02025-12
Built From Broken FoundationMental health and crisis intervention501(c)(3)2026
Camp Buckaroos IncRecreation and sports501(c)(3)2023$0$02024-12
Carcajou Shooting Club of Lake Koshkonong501(c)(7)1986$0$02025-12
Carsons Cause WiHuman services501(c)(3)2026$0$02025-12
Church On the Rock IncReligion-related501(c)(3)2014
Church of Christ of Fort Atkinson Wisconsin501(c)(3)1975
Crown of Life Christian AcademyEducation501(c)(3)2020
D L Trident LLCRecreation and sports501(c)(7)2006$0$02025-12
Driftskippers Snowmobile Club IncRecreation and sports501(c)(4)2001$0$02026-04
Drumlin Area Land Trust IncEnvironment501(c)(3)1998$0$02025-12
Fort Atkinson Area Senior Citizen Center Inc501(c)(3)1980$0$02024-08
Fort Atkinson Arts Council Inc501(c)(3)1985$0$02025-12
Fort Atkinson Beautification Council IncArts, culture and humanities501(c)(3)2023$0$02025-09
Fort Atkinson Community Band Inc501(c)(3)2009$0$02024-12
Fort Atkinson Community Theatre IncArts, culture and humanities501(c)(3)1995$0$02025-06
Fort Atkinson Farmers MarketFood, agriculture and nutrition501(c)(3)2025$0$02025-12
Fort Atkinson Lions Foundation IncHuman services501(c)(3)2024$0$02024-12
Fort Atkinson Science Fair IncPublic and societal benefit501(c)(3)1991$0$02026-03
Fort Atkinson Vocational & Technical Scholarship Program Inc501(c)(3)1970$0$02024-12
Fort Atkinson Volunteer Fire Department501(c)(4)1972$0$02025-12
Fort Atkinson Youth Wrestling ClubRecreation and sports501(c)(3)2024$0$02025-08
Fort Atksinson Swim TeamEducation501(c)(3)2008$0$02025-12
Fort Christian Assembly IncReligion-related501(c)(3)1997
Fort Youth Tackle FootballRecreation and sports501(c)(3)2011$0$02025-12
Fox Terrier Club of Chicago501(c)(7)1988$0$02024-12
Friends of Dwight Foster Public Library IncEducation501(c)(3)2017$0$02026-08
Friends of Glacial Heritage Area IncRecreation and sports501(c)(3)2014$0$02024-12
Friends of Haumersons PondRecreation and sports501(c)(3)2018$0$02025-12
Friends of Lorine Niedecker IncEducation501(c)(3)2005$0$02025-12
Friends of Rose LakeRecreation and sports501(c)(3)2022$0$02025-12
Future Farmers of America and Its State Associations & Local ChapterEducation501(c)(3)2021$0$02023-12
Galilee Ministry IncReligion-related501(c)(3)2026
God Touch Ministry IncHuman services501(c)(3)2016$0$02023-12
Good News Community Church Incorporated501(c)(3)1989
Heart of the CityEducation501(c)(3)2011$0$02025-12
Heartland Preschool501(c)(3)19662014-06
Hebron Community ChurchReligion-related501(c)(3)2023$0$02024-12
International Church of the Foursquare Gospel501(c)(3)1949
Jefferson County Police Officer Support Team P O S TPublic safety, disaster preparedness and relief501(c)(3)2025$0$02024-12
Junior Blackhawks Softball IncRecreation and sports501(c)(3)2024$0$02025-12
Kennel Club of Fort Atkinson IncAnimal-related501(c)(3)2009$0$02025-12
Kiwanis International Inc501(c)(4)1965$0$02025-09
Knights of Columbus501(c)(8)1940$0$02025-12
Koshkonong Golf Learning & Development CenterRecreation and sports501(c)(3)2021$0$02025-12
LTL Foundation IncEducation501(c)(3)2018$0$02025-12
Lake Koshkonong Wetland Association IncEnvironment501(c)(3)2004$0$02025-12
Living Savior Lutheran Church501(c)(3)19412014-12
Lutheran Womens Missionary Society501(c)(3)1966
Maranatha Fellowship of Fort Atkinson Inc501(c)(3)1983
Marine Corps Leauge501(c)(4)1946$0$02026-06
McGlynn Family Foundation IncPhilanthropy, voluntarism and grantmaking foundations501(c)(3)2022$305,2412025-12
Michelle Miller Memorial Scholarship FundEducation501(c)(3)2025$0$02025-12
Michelle and Craig Auerbach Scholarship Trust501(c)(3)1985$4,6342025-12
National Association of ScholarsEducation501(c)(3)1991$0$02025-12
National Rural Letter Carriers Association501(c)(5)1972$0$02025-06
National Society of the Daughters of the American Revolution501(c)(3)1949$0$02025-12
Oakland Conservation Club IncEnvironment501(c)(3)2023$0$02025-12
Oi Governmental Services CorporationEmployment501(c)(3)2019$0$02024-12
Optimist International501(c)(4)1958$0$02025-12
Pflag Cambridge501(c)(3)1994$0$02025-09
Reaching Out Respite of Fort AtkinsonHuman services501(c)(3)2018$0$02025-12
Resurrection Church IncReligion-related501(c)(3)2022
Rockwell Parent Teacher Organization501(c)(3)1986$0$02025-12
Rotary International501(c)(4)1958$0$02024-06
Southern Wisconsin Sled HockeyRecreation and sports501(c)(3)2018$0$02025-12
St John Lutheran Church501(c)(3)1966
St Joseph Parish501(c)(3)1946
Talons Ride To CureMedical research501(c)(3)2024
Ten Eight Service Dogs IncHuman services501(c)(3)2022$0$02024-12
United Brotherhood of Christ LTD Fort Atkinson501(c)(3)1971
United States Bowling Congress IncRecreation and sports501(c)(3)2004$0$02025-07
Veterans of Foreign Wars of the United States Dept of Wisconsin501(c)(19)1973$0$02026-06
Veterans of Foreign Wars of the United States Dept of Wisconsin501(c)(19)1973$0$02026-06
Vietnam Veterans of America Inc501(c)(19)1984$0$02026-02
Windemuth Family Organization501(c)(7)1997$0$02025-12
Wisconsin Association of Scholars IncEducation501(c)(3)2022$0$02025-12
Wisconsin HealthcareHealth care501(c)(3)1993$0$02025-12

By cause in Fort Atkinson, 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.