| National TTT SocietyWest Des Moines | Form 990-N | No figure |
| National TTT SocietyWest Des Moines | Form 990-N | No figure |
| Lyon County Historical SocietyRock Rapids | Form 990-N | No figure |
| Muscatine Area Heritage Association IncMuscatine | Form 990-N | No figure |
| Kossuth County Right-to-Life IncAlgona | Form 990-N | No figure |
| Genealogical Society of Linn County IowaCedar Rapids | Form 990-N | No figure |
| Springville Area Church CouncilSpringville | Form 990-N | No figure |
| Beta Alpha Psi National CouncilIowa City | Form 990-N | No figure |
| Beta Alpha Psi National CouncilDes Moines | Form 990-N | No figure |
| Institute of Management Accountants IncWaterloo | Form 990-N | No figure |
| Institute of Management Accountants IncDubuque | Form 990-N | No figure |
| American Fisheries SocietyIndianola | Form 990-N | No figure |
| American Gothic Trail Committee IncEldon | Form 990-N | No figure |
| Duncombe BoostersFort Dodge | Form 990-N | No figure |
| Mason City Swim ClubMason City | Form 990-N | No figure |
| Marshall Alano Society IncMarshalltown | Form 990-N | No figure |
| Jasper County Senior Citizens IncNewton | Form 990-N | No figure |
| League of Women Voters of IowaWaterloo | Form 990-N | No figure |
| Institute of Industrial Engineers IncIowa City | Form 990-N | No figure |
| International & Senior Award Fund of Iowa State Univ Womens ClubAmes | Form 990-N | No figure |
| Birthright of Burlington IowaBurlington | Form 990-N | No figure |
| Young Mens Christian Association of Fort Dodge Iowa Charitable FoundatFort Dodge | Form 990-N | No figure |
| Audubon County Historical SocietyAudubon | Form 990-N | No figure |
| Gamma Sigma Chapter of the Society of Pi Kappa LambdaCedar Falls | Form 990-N | No figure |
| Institute of Industrial Engineers IncAmes | Form 990-N | No figure |
| Albert City Historical Association IncAlbert City | Form 990-N | No figure |
| Carroll County Historical SocietyCarroll | Form 990-N | No figure |
| Peer Action Disability Support PadsCedar Rapids | Form 990-N | No figure |
| Fayette County Helpers Club and Historical SocietyWest Union | Form 990-N | No figure |
| League of Women Voters of IowaGrinnell | Form 990-N | No figure |
| League of Women Voters of IowaOttumwa | Form 990-N | No figure |
| International Order of the Rainbow GirlsUrbandale | Form 990-N | No figure |
| International Order of the Rainbow GirlsUrbandale | Form 990-N | No figure |
| International Order of the Rainbow GirlsUrbandale | Form 990-N | No figure |
| International Order of the Rainbow GirlsUrbandale | Form 990-N | No figure |
| Serra InternationalDavenport | Form 990-N | No figure |
| Serra InternationalDubuque | Form 990-N | No figure |
| Demolay InternationalDes Moines | Form 990-N | No figure |
| Demolay InternationalDes Moines | Form 990-N | No figure |
| National Campus Ministry Association IncCedar Falls | Form 990-N | No figure |
| La Leche League International IncCorrectionville | Form 990-N | No figure |
| Psi Chi the National Honor Society in PsychologyCedar Rapids | 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 |
| Valor IncCedar Rapids | Form 990-N | No figure |
| Bethesda House IncOskaloosa | Form 990-N | No figure |
| Trento Emergency RespondersMount Pleasant | Form 990-N | No figure |
| Society for Preservation & Encourmt of Barbershop Quartet Singing AmerFort Dodge | Form 990-N | No figure |
| Daughters of Union Veterans of the Civil War 1861-1865Waverly | Form 990-N | No figure |
| Jackson County Historical SocietyBaldwin | Form 990-N | No figure |