| Collegeready IncGreen Bay | Form 990 | $2,435,489FY2025 |
| Federated Youth Foundation Inc 1810 South Park StreetMiddleton | Form 990 | $2,375,112FY2025 |
| Door Community Auditorium CorporationFish Creek | Form 990 | $2,339,923FY2024 |
| Hero IncGreen Bay | Form 990 | $2,313,187FY2024 |
| Northern Wisconsin State Fair Association IncChippewa Falls | Form 990 | $2,242,335FY2025 |
| Halfmoon Education IncEau Claire | Form 990 | $2,089,599FY2025 |
| Madison Public Schools Foundation IncMadison | Form 990 | $2,018,251FY2024 |
| Wisconsin School Music Association Inc WsmaWaunakee | Form 990 | $2,015,651FY2025 |
| Wisconsin Masonic FoundationDousman | Form 990 | $2,006,392FY2025 |
| Christian Education Leadership Academy IncPewaukee | Form 990 | $1,981,476FY2025 |
| La Crosse Medical Health Science Consortium IncLa Crosse | Form 990 | $1,850,291FY2025 |
| Foundation of the Wisconsin Automobile & Truck Dealers AssocMadison | Form 990 | $1,808,957FY2025 |
| Lutheran High School Association of Greater Milwaukee FoundationWest Allis | Form 990 | $1,793,629FY2025 |
| Pearls for Teen Girls IncMilwaukee | Form 990 | $1,739,502FY2025 |
| Woodland Montessori School IncMadison | Form 990 | $1,697,144FY2025 |
| Sheboygan Public Education Foundation IncSheboygan | Form 990 | $1,688,712FY2025 |
| Worldwide Education FundMenomonee Falls | Form 990 | $1,605,660FY2025 |
| Bookworm GardensSheboygan | Form 990 | $1,551,767FY2025 |
| Madison Community CooperativeMadison | Form 990 | $1,529,994FY2025 |
| Wisconsin Technical College System Foundation IncMadison | Form 990 | $1,502,736FY2025 |
| The Friendship Circle IncFox Point | Form 990 | $1,491,350FY2024 |
| Institute for Reforming Government IncDelafield | Form 990 | $1,468,754FY2024 |
| International Association of Industrial Accident Boards & CommiMonona | Form 990 | $1,455,951FY2025 |
| Rural Schools Collaborative IncAppleton | Form 990 | $1,424,112FY2025 |
| Natures Classroom Institute Environmental EducationMukwonago | Form 990 | $1,405,013FY2025 |
| Siena Retreat Center IncRacine | Form 990 | $1,371,631FY2025 |
| Mabel Tainter Literary Library & Educational SocietyMenomonie | Form 990 | $1,365,355FY2025 |
| Leading Change IncMadison | Form 990 | $1,347,480FY2025 |
| Wisconsin Procurement Institute Education & Training Services IncWauwatosa | Form 990 | $1,342,982FY2025 |
| Milwaukee Regional Innovation Center IncWauwatosa | Form 990 | $1,314,512FY2025 |
| International Federation of Clinical Neurophysiology IncMilwaukee | Form 990 | $1,305,916FY2024 |
| I P M Institute of North America IncMadison | Form 990 | $1,299,644FY2024 |
| Kenya Works IncAppleton | Form 990 | $1,276,856FY2024 |
| Einstein Project IncGreen Bay | Form 990 | $1,276,704FY2025 |
| Forward Together Wisconsin CoMadison | Form 990 | $1,275,905FY2025 |
| International Society for Quality Life ResearchMilwaukee | Form 990 | $1,240,793FY2024 |
| Lakeshore Technical College Foundation IncCleveland | Form 990 | $1,201,605FY2025 |
| All Bout Children Preschool IncBrookfield | Form 990 | $1,108,676FY2024 |
| Local 212 Matc Believe in Students Fast Fund IncMilwaukee | Form 990 | $1,107,895FY2025 |
| Forward Scholars LLCMilwaukee | Form 990 | $1,084,020FY2025 |
| Lakeshore Natural Resource PartnershipPort Washington | Form 990 | $1,078,026FY2025 |
| Wisconsin Dells Education FoundationWisconsin Dells | Form 990 | $1,076,717FY2023 |
| Hometown Education Foundation IncMadison | Form 990 | $1,064,560FY2025 |
| Wisconsin Association of School Personnel AdministratorsMadison | Form 990 | $1,047,470FY2025 |
| Gay Straight Alliance for Safeschools IncorporatedMadison | Form 990 | $1,044,182FY2025 |
| African American Chamber of CommerceMilwaukee | Form 990 | $1,041,039FY2024 |
| Urban Affairs AssociationMilwaukee | Form 990 | $1,028,991FY2024 |
| Rethinking Schools LimitedMilwaukee | Form 990 | $1,025,097FY2025 |
| School Choice Wisconsin IncBrookfield | Form 990 | $1,024,071FY2024 |
| MC Donell High School Foundation IncChippewa Falls | Form 990 | $967,128FY2024 |