| Association for the History of Chiropractic IncDavenport | Form 990-N | No figure |
| Little League Baseball IncDavenport | Form 990-N | No figure |
| Little League Baseball IncEddyville | Form 990-N | No figure |
| Grist Mill Fine Arts Council IncMacedonia | Form 990-N | No figure |
| Little League Baseball IncVan Meter | Form 990-N | No figure |
| Izaak Walton League of America IncWapello | Form 990-N | No figure |
| Psi Chi the International Honor Society in PsychologyCedar Falls | Form 990-N | No figure |
| Psi Chi the International Honor Society in PsychologyIowa City | Form 990-N | No figure |
| Psi Chi the National Honor Society in PsychologySioux City | Form 990-N | No figure |
| American Inns of Court FoundationIowa City | Form 990-N | No figure |
| Trout UnlimitedDes Moines | Form 990-N | No figure |
| National TTT SocietyWest Des Moines | Form 990-N | No figure |
| League of Women Voters Education FundCedar Rapids | Form 990 | $0FY2025 |
| PTA Iowa CongressCedar Rapids | Form 990-N | No figure |
| Charter Builder Trust FundCedar Falls | Form 990-N | No figure |
| Smocking Arts Guild of America IncCedar Rapids | Form 990-N | No figure |
| North Star Dimensions IncFairfield | Form 990-N | No figure |
| Psi Chi the National Honor Society in PsychologyPella | Form 990-N | No figure |
| Psi Chi the National Honor Society in PsychologyMount Vernon | Form 990-N | No figure |
| Psi Chi the National Honor Society in PsychologyOrange City | Form 990-N | No figure |
| Psi Chi the National Honor Society in PsychologyWaverly | Form 990-N | No figure |
| Psi Chi the National Honor Society in PsychologyDubuque | Form 990-N | No figure |
| Sons of Confederate Veterans IncDes Moines | Form 990-N | No figure |
| Association of Fundraising ProfessionalsDubuque | Form 990-N | No figure |
| National TTT SocietyWest Des Moines | Form 990-N | No figure |
| Music Teachers National Association IncIowa City | Form 990-N | No figure |
| American Humanist AssociationWest Des Moines | Form 990-N | No figure |
| National TTT SocietyWest Des Moines | Form 990-N | No figure |
| National TTT SocietyWest Des Moines | Form 990-N | No figure |
| Free River PressDecorah | Form 990-N | No figure |
| National Federation of Music ClubsWaterloo | Form 990-N | No figure |
| Toastmasters InternationalIndependence | Form 990-N | No figure |
| National Kappa Kappa Iota IncPleasant Hill | Form 990-N | No figure |
| National Kappa Kappa Iota IncWest Des Moines | Form 990-N | No figure |
| National Society of the Children of the American RevolutionDubuque | Form 990-N | No figure |
| Association of Notre Dame Clubs IncCedar Rapids | Form 990-N | No figure |
| National Society of the Children of the American RevolutionDubuque | Form 990-N | No figure |
| Future Farmers of America State Associations & Local ChapterChariton | Form 990-N | No figure |
| PTA Iowa CongressDes Moines | Form 990-N | No figure |
| Future Farmers of America State Associations & Local ChapterWest Bend | Form 990-N | No figure |
| Community Assistance ProgramCedar Rapids | Form 990-N | No figure |
| Future Farmers of America State Associations & Local ChapterCascade | Form 990-N | No figure |
| Arc of IowaMarshalltown | Form 990-N | No figure |
| Future Farmers of America State Association & Local ChapterWaverly | Form 990-N | No figure |
| Friends of Lake Wapello State ParkBloomfield | Form 990-N | No figure |
| Tri-State Mountain Bike RidersDubuque | Form 990-N | No figure |
| Iowa Congress of Parents and Teachers IncSioux City | Form 990-N | No figure |
| Association of Traditional Hooking ArtistsAmes | Form 990-N | No figure |
| Future Farmers of America State Associations & Local ChapterRiceville | Form 990-N | No figure |
| Vast FoundationDes Moines | Form 990-N | No figure |