| Pediatric Epilepsy Research Consortium IncChicago | Form 990 | $731,267FY2025 |
| Alliance for Community Research Engagement and SupportChicago | Form 990 | $727,620FY2025 |
| Society of Urologic Oncology Clinical Trials ConsortiumSchaumburg | Form 990 | $684,500FY2025 |
| International Clinical Cytometry SocietyGlenview | Form 990 | $683,469FY2025 |
| Massage Therapy Foundation IncEvanston | Form 990 | $641,231FY2025 |
| Cellmates on the Run FoundationChicago | Form 990 | $588,193FY2025 |
| Neurofibromatosis IncWheaton | Form 990 | $575,060FY2025 |
| American Society of Spine RadiologyOak Brook | Form 990 | $564,890FY2025 |
| Dysphagia Research Society IncWarrenville | Form 990 | $553,567FY2025 |
| International Society for Laboratory HematologyGlenview | Form 990 | $517,511FY2025 |
| Amyloidosis Support Groups IncWood Dale | Form 990 | $499,585FY2025 |
| Fellowship for Interpretation of GenomesBurr Ridge | Form 990 | $483,894FY2025 |
| Cured NFPNorthbrook | Form 990 | $465,036FY2024 |
| North American Hair Research SocietyElgin | Form 990 | $446,711FY2025 |
| Harlan E Moore Heart Research FoundationChampaign | Form 990 | $439,601FY2025 |
| Prostate Cancer Foundation of ChicagoWestmont | Form 990 | $427,055FY2024 |
| Coalition to Cure CHD2 IncNaperville | Form 990 | $400,940FY2025 |
| Society for Ear Nose and Throat Advances in Children IncWarrenville | Form 990 | $400,297FY2024 |
| Foundation for Physical Medicine and RehabilitationRosemont | Form 990 | $398,965FY2024 |
| American Hearing Research FoundationChicago | Form 990 | $385,525FY2024 |
| A Long SwimBarrington | Form 990 | $373,936FY2024 |
| Team Bright Side IncSkokie | Form 990 | $366,034FY2024 |
| Family Medicine Midwest FoundationBolingbrook | Form 990 | $338,046FY2025 |
| Neurofibromatosis MidwestSaint Charles | Form 990 | $327,237FY2025 |
| Staar Ovarian CancerChicago | Form 990 | $299,828FY2024 |
| Luminaries IncNorthfield | Form 990 | $299,765FY2024 |
| Familial Dysautonomia Now FoundationSkokie | Form 990 | $289,025FY2025 |
| Society of Urodynamics and Female Urology Research Foundation IncSchaumburg | Form 990 | $277,851FY2024 |
| The Super Jake FoundationGurnee | Form 990 | $266,537FY2024 |
| Mark Linder Walk for the MindPeoria | Form 990 | $266,022FY2024 |
| I I District Kiwanis Neuroscience Research FoundationRockford | Form 990 | $255,093FY2025 |
| Mend a Heart FoundationClarendon Hills | Form 990 | $238,099FY2025 |
| The Allergists FoundationArlington Heights | Form 990 | $216,835FY2024 |
| Cosmopolitan Diabetes Foundation IncRockford | Form 990 | $216,695FY2025 |
| Music MovementChicago | Form 990 | $215,276FY2025 |
| Association of Program Directors in Vascular SurgeryRosemont | Form 990 | $210,278FY2024 |
| Kbstrong-Fighting the Fight NFPWashington | Form 990 | $205,925FY2025 |
| Society for Behavioral NeuroendocrinologySchaumburg | Form 990 | $203,629FY2025 |
| Society for Basic Urologic ResearchEast Dundee | Form 990 | $202,058FY2025 |
| Team Schladt FoundationChicago | Form 990 | $197,129FY2025 |
| Advances in Contrast Ultrasound NFPChicago | Form 990-EZ | $194,373FY2025 |
| Toxoplasmosis Research InstituteChicago | Form 990 | $189,334FY2024 |
| MED13L Foundation IncPark Ridge | Form 990 | $188,215FY2024 |
| Rory David Deutsch FoundationHighland Park | Form 990 | $184,633FY2025 |
| Amrita Institute of Advanced ResearchElburn | Form 990-EZ | $180,108FY2025 |
| American Eye Study Club Foundation Ua 07152003Vernon Hills | Form 990 | $161,999FY2025 |
| Osteopathic International AllianceChicago | Form 990-EZ | $154,331FY2024 |
| STL Cure SarcomaBenton | Form 990-EZ | $152,289FY2025 |
| Propionic Acidemia FoundationDeerfield | Form 990 | $152,254FY2026 |
| Ginger Rugai y-Me Softball TournamentChicago | Form 990-EZ | $141,890FY2025 |