| Luther Manor of Scott County IncBettendorf | Form 990 | $1,181,890FY2025 |
| Monroe County Professional Management CorporationAlbia | Form 990 | $1,177,110FY2025 |
| Aerial Promotions IncEldridge | Form 990 | $1,176,522FY2025 |
| Council for Agricultural Science and TechnologyAmes | Form 990 | $1,164,640FY2024 |
| Coalition for Family & Childrens Services in Iowa IncDes Moines | Form 990 | $1,160,986FY2025 |
| Family YMCACharles City | Form 990 | $1,159,485FY2025 |
| Grundy County Memorial Hospital FoundationGrundy Center | Form 990 | $1,157,349FY2025 |
| Westfair AssociationCouncil Bluffs | Form 990 | $1,117,866FY2025 |
| Iowa Motor Carriers FoundationDes Moines | Form 990 | $1,111,268FY2025 |
| Union County Child Care CenterCreston | Form 990 | $1,089,878FY2024 |
| Davenport Lend-a-Hand Housing CorporationDavenport | Form 990 | $1,082,652FY2024 |
| Hancock County Agricultural SocietyBritt | Form 990 | $1,080,267FY2024 |
| Iowa Grocers Education FoundationUrbandale | Form 990 | $1,075,903FY2025 |
| Iowa Public Health Association FoundationDes Moines | Form 990 | $1,056,770FY2025 |
| Boy Scouts of AmericaCedar Rapids | Form 990 | $1,048,696FY2024 |
| Iowa Volleyball AssociationClive | Form 990 | $1,037,679FY2025 |
| G-R Daycare IncReinbeck | Form 990 | $1,021,301FY2025 |
| Center Against Abuse Sexual Assault CaasaSpencer | Form 990 | $958,350FY2025 |
| Boy Scouts of AmericaDubuque | Form 990 | $954,076FY2024 |
| Burlington Community School District Educational FoundationBurlington | Form 990 | $949,020FY2026 |
| Fort Dodge Community Recreation CenterFort Dodge | Form 990 | $948,375FY2024 |
| Southwestern Community College Education FoundationCreston | Form 990 | $944,775FY2025 |
| Center for National Independence in PoliticsDes Moines | Form 990 | $941,346FY2025 |
| Community Early Childhood CenterFort Dodge | Form 990 | $932,306FY2025 |
| National Balloon Classic LtdIndianola | Form 990 | $913,743FY2025 |
| The Richmond CenterAmes | Form 990 | $903,588FY2024 |
| Boy Scouts of AmericaWaterloo | Form 990 | $898,073FY2025 |
| Forest City Ambulance ServiceForest City | Form 990 | $897,122FY2024 |
| Prairie View HomeGarner | Form 990 | $891,840FY2025 |
| Lemars Family Young Mens Christian AssociationLe Mars | Form 990 | $878,883FY2025 |
| Decorah Community School District FoundationDecorah | Form 990 | $875,769FY2025 |
| Iowa Chapter of the Foundation for North American Wild SheepEstherville | Form 990 | $861,735FY2025 |
| Mt Pleasant HomeDubuque | Form 990 | $851,363FY2025 |
| By Degrees FoundationDes Moines | Form 990 | $847,011FY2025 |
| John Wayne Birthplace Society LtdWinterset | Form 990 | $824,666FY2024 |
| Iowa Association of School Business OfficialsElliott | Form 990 | $822,303FY2025 |
| Sartori Health Care FoundationWaterloo | Form 990 | $818,644FY2025 |
| Iowa Credit Union Foundation IncWest Des Moines | Form 990 | $802,560FY2025 |
| Christian School Society of InwoodInwood | Form 990 | $799,437FY2025 |
| Bur Oak Land TrustIowa City | Form 990 | $791,175FY2025 |
| Vera French FoundationDavenport | Form 990 | $789,292FY2025 |
| Holy Family School Innercity Youth FoundationDes Moines | Form 990 | $782,231FY2026 |
| Hawkeye Downs IncCedar Rapids | Form 990 | $781,763FY2024 |
| Howard County Agricultural SocietyCresco | Form 990 | $771,852FY2025 |
| Miracles in Motion Therapeutic Equestrian CenterSwisher | Form 990 | $770,860FY2025 |
| Common Good IowaDes Moines | Form 990 | $767,432FY2024 |
| Cedar County Historical SocietyTipton | Form 990 | $764,138FY2025 |
| Southwest Iowa Housing Trust Fund IncAtlantic | Form 990 | $763,100FY2025 |
| Fellowship Cup CorporationMount Pleasant | Form 990 | $759,842FY2025 |
| Wonder Years AcademyDes Moines | Form 990 | $758,091FY2024 |