| Friends of the Quincy Public LibraryQuincy | Form 990-N | No figure |
| Lake Zurich High School Bear Booster ClubLake Zurich | Form 990-EZ | $37,631FY2025 |
| Fox Valley Patriotic OrganizationBatavia | Form 990 | $37,600FY2025 |
| Red Oak Elementary School PTO NFPHighland Park | Form 990-EZ | $37,510FY2026 |
| Phandemonium IncArlington Heights | Form 990-EZ | $37,399FY2026 |
| SCHS Booster Club IncSalem | Form 990-EZ | $37,384FY2025 |
| Connell F Smith & Homer Brown Scholarship and Education FundMarion | Form 990-EZ | $37,122FY2025 |
| Cougar BoostersPlainfield | Form 990-EZ | $37,086FY2025 |
| Coles County Farm Bureau FoundationCharleston | Form 990-N | No figure |
| District 300 Foundation for Educational ExcellenceAlgonquin | Form 990-EZ | $37,034FY2024 |
| Friends of Robot Casserole NFPChillicothe | Form 990-N | No figure |
| District 59 Education FoundationElk Grove Village | Form 990-N | No figure |
| Coach Landry Scholarship Foundation LtdWashington | Form 990-N | No figure |
| Mill Creek Elementary School Parent Teacher OrganizationGeneva | Form 990-N | No figure |
| Sheilah a Doyle FoundationLombard | Form 990-EZ | $36,289FY2025 |
| Public Library Association of Farmer CityFarmer City | Form 990-N | No figure |
| Illinois Judicial Council Foundation IncChicago | Form 990-N | No figure |
| Iroquois County Community Unit School Dist No 9 Academic FND IncWatseka | Form 990-N | No figure |
| Western Society of EngineersRosemont | Form 990-N | No figure |
| Wredling Middle School PTO IncSaint Charles | Form 990-EZ | $35,830FY2025 |
| Hancock County Farm Bureau FoundationCarthage | Form 990-EZ | $35,806FY2025 |
| Sacred Heart Du Quoin Education FoundationDu Quoin | Form 990-N | No figure |
| Sexpectations Chicago NFPChicago | Form 990-N | No figure |
| Williamsburg Elementary School Parent-Teacher Organization GenevaGeneva | Form 990-EZ | $35,718FY2025 |
| Friends of Ray SchoolChicago | Form 990-EZ | $35,531FY2025 |
| West Aurora Band Boosters the Association NFPAurora | Form 990-N | No figure |
| Maine East High School Athletic Booster ClubPark Ridge | Form 990-EZ | $35,343FY2025 |
| QC Elite Team 648Moline | Form 990-N | No figure |
| Western Avenue School PTOGeneva | Form 990-EZ | $35,229FY2025 |
| Chaco Fund IncBuffalo Grove | Form 990-N | No figure |
| Most Holy Redeemer School FoundationEvergreen Park | Form 990-EZ | $35,004FY2025 |
| Liberty Seated Collectors ClubVernon Hills | Form 990-N | No figure |
| Norwood Park School PTOChicago | Form 990-N | No figure |
| Indica IncElgin | Form 990-N | No figure |
| Ursuline Academy FoundationSpringfield | Form 990-N | No figure |
| Lafayete Gatling Sr Scholarship FundChicago | Form 990-EZ | $34,764FY2024 |
| Hoffman Estates Loyal PartnersHoffman Estates | Form 990-EZ | $34,727FY2026 |
| Sophies Home & After School IncChicago | Form 990-N | No figure |
| Illinois Valley Youth Soccer League IncPeru | Form 990-N | No figure |
| Meadow View Elementary PTOPlainfield | Form 990-N | No figure |
| Ravinia Parent Teacher OrganizationHighland Park | Form 990-N | No figure |
| Edgar Allan Poe Parent Teacher OrganizationArlington Heights | Form 990-N | No figure |
| Rise Christian AcademyPark Forest | Form 990-N | No figure |
| Healthcare Surfaces SummitRosemont | Form 990-N | No figure |
| Blacks Academy of Excellence IncZion | Form 990-N | No figure |
| Illinois Congress of Parents TeachersAurora | Form 990-EZ | $33,618FY2025 |
| German American Apprenticeship & Education FoundationChicago | Form 990-N | No figure |
| Rockland Family AssociationLibertyville | Form 990-EZ | $33,333FY2025 |
| Dakota 201 Parent Teacher OrganizationDakota | Form 990-EZ | $33,290FY2025 |
| Unit 2 PTA IncBonfield | Form 990-EZ | $33,107FY2026 |