| The Rees Carillon SocietySpringfield | Form 990 | $67,045FY2025 |
| Cepta IncMarengo | Form 990-EZ | $67,013FY2025 |
| Wabash Valley Youth in Action IncMount Carmel | Form 990 | $67,004FY2025 |
| Friends of the Decatur Public Library IncDecatur | Form 990-EZ | $66,808FY2025 |
| Downstate Afro American Hall of Fame IncPeoria | Form 990-EZ | $65,985FY2025 |
| Conants Cougar Booster Club IncHoffman Estates | Form 990-EZ | $65,964FY2025 |
| Park Ridge Speed Skating Club IncChicago | Form 990-EZ | $65,731FY2023 |
| Savoy AiresEvanston | Form 990-EZ | $65,448FY2025 |
| Covenant Youth CollisionNorthbrook | Form 990-EZ | $65,366FY2023 |
| Afcea Educational FoundationScott AFB | Form 990-EZ | $65,292FY2025 |
| National Organization of Black Law Enforcement Executives NobleChicago | Form 990-EZ | $65,275FY2025 |
| McHenry County 4-H Youth Foundation IncWoodstock | Form 990-EZ | $64,797FY2025 |
| Livestock Boosters of St Clair CountyMascoutah | Form 990-EZ | $64,524FY2026 |
| Winfield Historical SocietyWinfield | Form 990-EZ | $64,254FY2025 |
| Preservation and Conservation Association of Champaign CountyChampaign | Form 990-EZ | $63,881FY2024 |
| Illinois Congress of Parents TeachersCharleston | Form 990-EZ | $63,848FY2025 |
| Helps Ministries IncBloomington | Form 990-EZ | $63,789FY2024 |
| Morgan County Historical SocietyJacksonville | Form 990 | $63,777FY2025 |
| Scholarship Foundation of the Univ of Notre Dame Club of ChicagoChicago | Form 990-EZ | $63,748FY2025 |
| The Society for American City and Regional Planning HistoryChicago | Form 990-EZ | $63,363FY2024 |
| Champaign-Urbana Kiwanis Welfare FoundationSavoy | Form 990 | $63,237FY2025 |
| Health Humanities ConsortiumChicago | Form 990-EZ | $63,175FY2025 |
| Quincy Park Band IncQuincy | Form 990-EZ | $63,153FY2025 |
| New England Roentgen Ray Society IncWarrenville | Form 990-EZ | $62,963FY2025 |
| Chicago Literary ClubChicago | Form 990 | $62,921FY2025 |
| Deerfield Park FoundationDeerfield | Form 990-EZ | $62,843FY2025 |
| Little League Baseball IncSilvis | Form 990-EZ | $62,780FY2025 |
| Bradley M Yusim FoundationDeerfield | Form 990-EZ | $62,747FY2024 |
| Luella C Oliver Trust Ronald Shaefer & John a Taylor TteesPontiac | Form 990 | $62,653FY2025 |
| Mental Health Association of Greater Chicago IncChicago | Form 990-EZ | $62,480FY2025 |
| Zion Benton Childrens Service IncZion | Form 990-EZ | $62,318FY2025 |
| Western Springs Foundation for Education ExcellenceWestern Springs | Form 990-EZ | $62,233FY2025 |
| Associated General Contractors of Illinois Education FoundationSpringfield | Form 990-EZ | $62,170FY2025 |
| Illinois Congress of Parents TeachersElmhurst | Form 990-EZ | $62,089FY2025 |
| Missions of Love and Hope IncElk Grove Village | Form 990-EZ | $61,915FY2025 |
| Illinois Congress of Parents TeachersNaperville | Form 990-EZ | $61,735FY2025 |
| Music Teachers National AssociationChicago | Form 990-EZ | $61,670FY2025 |
| Monroe School PTOHinsdale | Form 990-EZ | $61,512FY2025 |
| Strategic Christian Ministry FoundationOak Brook | Form 990-EZ | $61,275FY2025 |
| Friends of Stone AcademyChicago | Form 990-EZ | $61,188FY2026 |
| Orion Fall FestivalOrion | Form 990-EZ | $61,045FY2026 |
| Cba Media and Civic Education IncChicago | Form 990-EZ | $60,965FY2025 |
| Foundation of the Association of Legal AdministratorsChicago | Form 990-EZ | $60,815FY2024 |
| Moultrie County Historical & Genealogical SocietySullivan | Form 990 | $60,593FY2025 |
| Sidley and Austin Fund for Kanoon Magnet School IncChicago | Form 990-EZ | $60,089FY2025 |
| International Christian Ministries IncChicago | Form 990-EZ | $60,058FY2025 |
| Skinner School ForumChicago | Form 990-EZ | $60,007FY2024 |
| Quarterback Club of DupoDupo | Form 990-EZ | $59,973FY2025 |
| Brothers and Sisters of LoveChicago | Form 990-EZ | $59,526FY2025 |
| Road Runners Club of AmericaNormal | Form 990-EZ | $59,436FY2025 |