| Regional Health Services FoundationCresco | Form 990 | $69,553FY2025 |
| Jackson County Health FoundationMaquoketa | Form 990 | $69,097FY2025 |
| Tri-Center Athletic Booster ClubNeola | Form 990-EZ | $68,807FY2025 |
| Rotary Club of Marion-East Cedar RapidsMarion | Form 990-EZ | $68,142FY2026 |
| Benton County Volunteer ProgramBelle Plaine | Form 990-EZ | $67,814FY2023 |
| Northwest Iowa Health Center Foundation IncSheldon | Form 990 | $65,476FY2025 |
| Sleeping Angels FoundationBoone | Form 990-EZ | $65,025FY2024 |
| Cherokee Community FoundationCherokee | Form 990-EZ | $64,318FY2025 |
| Golden Rule Industries IncCorydon | Form 990-EZ | $62,533FY2025 |
| Garner-Hayfield Community School District Education FoundationGarner | Form 990 | $62,187FY2024 |
| Waverly Health Center AuxiliaryWaverly | Form 990-EZ | $61,272FY2025 |
| Wilton Community FoundationMuscatine | Form 990 | $60,473FY2025 |
| Three Rivers Conservation FoundationMontrose | Form 990-EZ | $59,659FY2025 |
| Events for a CauseWest Des Moines | Form 990-EZ | $57,094FY2025 |
| Jefferson Public Library FoundationJefferson | Form 990-EZ | $55,758FY2025 |
| Lake Mills Foundation for Community Improvements IncLake Mills | Form 990-EZ | $55,307FY2024 |
| Bridge Organization IncElma | Form 990-EZ | $55,071FY2025 |
| Rotary InternationalJefferson | Form 990-EZ | $55,011FY2025 |
| Harlan Community School District Education FoundationHarlan | Form 990-EZ | $54,953FY2025 |
| Friends of Warren County ConservationIndianola | Form 990-EZ | $54,656FY2025 |
| Sertoma IncFort Dodge | Form 990-EZ | $51,483FY2024 |
| Kernels FoundationCedar Rapids | Form 990-EZ | $51,037FY2025 |
| Charles City Community Fund IncCharles City | Form 990-N | No figure |
| Ankeny Community FoundationAnkeny | Form 990-N | No figure |
| Calvin Community FoundationDes Moines | Form 990-N | No figure |
| Central Iowa Race CorporationClive | Form 990-N | No figure |
| Carson King FoundationWaukee | Form 990-N | No figure |
| Trees Forever FoundationMarion | Form 990-N | No figure |
| Ankeny Kiwanis Charitable FoundationAnkeny | Form 990-EZ | $42,875FY2025 |
| Iowa Falls Community Chest IncIowa Falls | Form 990-N | No figure |
| Rotary Club of Clinton Iowa Charitable Foundation IncClinton | Form 990-EZ | $40,429FY2025 |
| Riverside Booster ClubCarson | Form 990-EZ | $39,904FY2025 |
| Iowa Knights of Columbus Charitable FoundationDes Moines | Form 990-N | No figure |
| 29th State FoundationUrbandale | Form 990-N | No figure |
| Tilt LabMount Vernon | Form 990 | $34,683FY2024 |
| Anamosa Community School FoundationAnamosa | Form 990-N | No figure |
| Motto Family FoundationBettendorf | Form 990-N | No figure |
| National Association of Charitable Gift PlannersIndianola | Form 990-N | No figure |
| Galva-Holstein Community School District FoundationHolstein | Form 990-N | No figure |
| Education Empowerment and Hunger PreventionWest Des Moines | Form 990-N | No figure |
| Families of the Fallen IncForest City | Form 990-EZ | $30,562FY2025 |
| Central City MainstreetCentral City | Form 990-N | No figure |
| Beaver Creek PTOJohnston | Form 990-N | No figure |
| Johnston Community School FoundationJohnston | Form 990-N | No figure |
| Charles City Elks Charitable TRCharles City | Form 990-N | No figure |
| Delaware County Pay It ForwardManchester | Form 990-EZ | $25,804FY2024 |
| West Central Booster Club IncMaynard | Form 990-N | No figure |
| Ida Grove Kiwanis Charitable FoundationIda Grove | Form 990-N | No figure |
| E Joe Lundsgaard Educational TrustCherokee | Form 990 | $16,054FY2025 |
| Valley High School Orchestra GuildWest Des Moines | Form 990-N | No figure |