| Dewitt Chamber & Development CoDe Witt | Form 990 | $511,405FY2025 |
| Worldmaker Resilence Institute IncCedar Rapids | Form 990 | $509,068FY2024 |
| Benjamin Hershey Memorial Convalescent HomeMuscatine | Form 990 | $508,881FY2025 |
| Sanborn Daycare AssociationSanborn | Form 990 | $499,842FY2024 |
| Iowa Newspaper FoundationDes Moines | Form 990 | $498,549FY2024 |
| Boone County Agricultural AssociationBoone | Form 990 | $493,579FY2025 |
| Prairie School FoundationCedar Rapids | Form 990 | $490,814FY2025 |
| Belmond Area Arts Council Lyric TheatreBelmond | Form 990 | $490,692FY2025 |
| United Way of Jasper CountyNewton | Form 990 | $488,157FY2025 |
| Siouxland Historical Railroad AssociationSioux City | Form 990 | $481,891FY2024 |
| United Way of Mahaska CountyOskaloosa | Form 990 | $480,602FY2024 |
| Iowa Parks and Recreation Association IncGrinnell | Form 990 | $479,053FY2025 |
| Marys InnDubuque | Form 990 | $472,567FY2025 |
| West Liberty Community Center IncWest Liberty | Form 990 | $470,053FY2024 |
| Clear Lake Public Library FoundationClear Lake | Form 990 | $469,553FY2025 |
| Alices Rainbow Childcare Center IncIowa City | Form 990 | $461,476FY2025 |
| Cedar Falls Iowa Historical SocietyCedar Falls | Form 990 | $460,163FY2024 |
| Willkie House IncorporatedDes Moines | Form 990 | $458,389FY2025 |
| Tiger Tots Community Child Care Center CorpMadrid | Form 990 | $456,338FY2025 |
| St Vincent de Paul Particular Council of Cedar Rapids IowaCedar Rapids | Form 990 | $454,214FY2025 |
| Jewish Federation of Sioux CitySioux City | Form 990 | $453,205FY2025 |
| Presentation LanternDubuque | Form 990 | $450,607FY2024 |
| Concerns of Police SurvivorsGranger | Form 990 | $447,543FY2026 |
| Siouxland Community Soup Kitchen IncSioux City | Form 990 | $445,580FY2025 |
| Washington County Fair AssociationWashington | Form 990 | $445,108FY2025 |
| Legal Aid Society of Story CountyNevada | Form 990 | $444,782FY2025 |
| Arc of IowaAmes | Form 990 | $441,659FY2025 |
| Visiting Nurse Association of Pottawattamie County IowaCouncil Bluffs | Form 990 | $441,437FY2024 |
| Poweshiek Area Housing IncGrinnell | Form 990 | $440,935FY2025 |
| NAMI Greater Mississippi Valley IncBettendorf | Form 990 | $440,261FY2024 |
| Davenport Schools FoundationDavenport | Form 990 | $435,744FY2025 |
| Wee Saints Day Care CenterSaint Ansgar | Form 990 | $434,836FY2025 |
| River Action IncDavenport | Form 990 | $427,426FY2024 |
| West Des Moines Girls Softball AssociationWest Des Moines | Form 990 | $426,257FY2025 |
| Building Blocks AcademyWoodbine | Form 990 | $424,634FY2024 |
| Sherman Hill Association IncDes Moines | Form 990 | $418,925FY2024 |
| Metro Catholic OutreachCedar Rapids | Form 990 | $418,711FY2025 |
| Amana Heritage SocietyAmana | Form 990 | $413,844FY2025 |
| Sunrise Child Care IncWellman | Form 990 | $406,085FY2025 |
| Sac County Fair BoardSac City | Form 990 | $405,386FY2025 |
| Jewish Federation of the Quad CitiesDavenport | Form 990 | $391,362FY2025 |
| Latinas Latinos Al Exito IncDes Moines | Form 990 | $389,238FY2025 |
| Wilton Daycare IncWilton | Form 990 | $387,454FY2026 |
| Council Bluffs Public Library FoundationCouncil Bluffs | Form 990 | $384,163FY2024 |
| Calvary Cemetery of Sioux CitySioux City | Form 990 | $380,166FY2025 |
| Des Moines County Historial SocietyBurlington | Form 990 | $374,762FY2025 |
| The University of Iowa Louis Shulman Hillel FoundationIowa City | Form 990 | $371,641FY2024 |
| Veterans Memorial Health Care Foundation of Waukon IowaWaukon | Form 990 | $366,649FY2025 |
| West Des Moines Soccer ClubWest Des Moines | Form 990 | $365,441FY2025 |
| United Way of Clinton County IowaClinton | Form 990 | $361,126FY2025 |