| Sudden Cardiac-Death Awareness Research FoundationSycamore | Form 990-EZ | $138,671FY2025 |
| Illinois Orthopaedic FoundationGlenview | Form 990-EZ | $136,883FY2024 |
| Brantley Francis FoundationGeneseo | Form 990-EZ | $127,426FY2024 |
| The Central Chapter of the Society of Nuclear MedicineNaperville | Form 990 | $124,308FY2025 |
| International Union of Elevator ConstructorsChicago Ridge | Form 990 | $122,926FY2025 |
| Tractors for a Cure IncPeotone | Form 990-EZ | $121,095FY2025 |
| Janes RoomGlenview | Form 990-EZ | $120,015FY2025 |
| KDC Foundation NFPChicago | Form 990-EZ | $118,697FY2025 |
| Michael P Brown - Colon CancerEast Peoria | Form 990-EZ | $118,617FY2025 |
| Gilmore Family FoundationArlington Heights | Form 990-EZ | $117,579FY2025 |
| Greenleaf Communities NFPWilmette | Form 990-EZ | $117,216FY2025 |
| 1J FoundationChicago | Form 990-EZ | $114,580FY2026 |
| Iuscan IncWinnetka | Form 990-EZ | $110,575FY2024 |
| Normaleah Ovarian Cancer InitiativeRock Island | Form 990-EZ | $109,967FY2024 |
| Foundation for Arthroplasty Research and EducationRosemont | Form 990 | $103,998FY2024 |
| Institute for Musculoskeletal AdvancementDowners Grove | Form 990-EZ | $100,017FY2024 |
| Biologic AssociationRosemont | Form 990-EZ | $96,127FY2024 |
| Iowa Urologic SocietySchaumburg | Form 990-EZ | $91,009FY2024 |
| Michael Matters Foundation IncLibertyville | Form 990-EZ | $84,684FY2025 |
| Chicago Electrical Trauma Research InstituteChicago | Form 990-EZ | $81,495FY2025 |
| Joseph Peter Bartzis FoundationCarol Stream | Form 990 | $79,517FY2024 |
| LGMD2L FoundationPark Ridge | Form 990-EZ | $78,539FY2025 |
| Aden Lamps FoundationPeru | Form 990-EZ | $72,553FY2026 |
| Yellow Bear FoundationPeoria | Form 990-EZ | $69,745FY2024 |
| Clay County Cancer Crusaders IncFlora | Form 990-EZ | $66,486FY2024 |
| Families Unite Against Als FoundationBarrington | Form 990-EZ | $66,359FY2025 |
| MARCH4MEG NFPPalos Park | Form 990-EZ | $62,372FY2025 |
| Acreditas GlobalDeerfield | Form 990-EZ | $60,185FY2025 |
| Local 1546 Ufcw Leukemia Fund IncChicago | Form 990-EZ | $57,678FY2025 |
| Great Lakes International Imaging & Flow Cytometry AssociatChicago | Form 990-EZ | $51,825FY2025 |
| Orthopaedic Surgery and Sportsmedicine Teaching and Research FounWestern Springs | Form 990-N | No figure |
| Aarush M Patel FoundationRolling Meadows | Form 990-EZ | $39,306FY2025 |
| Red Dog CF IncCanton | Form 990-EZ | $36,738FY2025 |
| Preimplantation Genetic Diagnosis International SocietyNorthbrook | Form 990-N | No figure |
| Natural Health Research InstituteBloomingdale | Form 990-N | No figure |
| Chicago Center for Vision Research LtdChicago | Form 990-N | No figure |
| Neuroblastoma Childrens Cancer SocietySchaumburg | Form 990-N | No figure |
| Justin Benjamin FoundationPort Barrington | Form 990-N | No figure |
| Draysontate Childrens Cancer Research Fund Ltd NFPPeoria | Form 990-N | No figure |
| Conference of Research Workers in Animal DiseasesChampaign | Form 990-N | No figure |
| Uncorked Adventures NFPWilmette | Form 990-N | No figure |
| Jim & Ginas Charity Golf OutingChicago | Form 990-N | No figure |
| Little Heroes Pediatric Cancer Reseach FoundationChicago | Form 990-N | No figure |
| Science Research 2-0Oak Park | Form 990-N | No figure |
| Emergency Medicine-Stronger Cook County IncChicago | Form 990-N | No figure |
| Beckley FoundationWoodridge | Form 990-N | No figure |
| Imaging in 2020 IncWilmette | Form 990-N | No figure |
| Liv for a Cure FoundationGrayslake | Form 990-N | No figure |
| Northwestern Arthritis & Rehabiltation InstituteChicago | Form 990-N | No figure |
| Mia Ware Foundation for Cancer Research and EducationSpringfield | Form 990-N | No figure |