| Friends of Conservation in Henrycounty LtdMount Pleasant | Form 990-N | No figure |
| River Development IncHumboldt | Form 990-N | No figure |
| Iowa Wildlife UnitedLone Tree | Form 990-N | No figure |
| Dubuque Field ArchersPeosta | Form 990-N | No figure |
| Eagle Point Nature SocietyClinton | Form 990-N | No figure |
| Jon a White Memorial Wildlifehabitat and Meditation Garden IncDes Moines | Form 990-N | No figure |
| Blackhawk Lake Resoration FundLake View | Form 990-N | No figure |
| Hawkeye Point FoundationSibley | Form 990-N | No figure |
| Urban AmbassadorsDes Moines | Form 990-N | No figure |
| Earthmind PracticeIowa City | Form 990-N | No figure |
| Green Hollow Center IncWest Des Moines | Form 990-N | No figure |
| Friends of the Decorah Fish HatcheryDecorah | Form 990-N | No figure |
| Cedar Valley Association for Soft TrailsCedar Falls | Form 990-N | No figure |
| Hazleton Veterans ParkOelwein | Form 990-N | No figure |
| Silver Lake Improvement Project - Palo AltoRuthven | Form 990-N | No figure |
| Missouri Valley African Violet CouncilSioux City | Form 990-N | No figure |
| Blue Devil Athletic FoundationDavenport | Form 990-N | No figure |
| Friends of Ada Hayden Heritage ParkAmes | Form 990-N | No figure |
| Madison County River AllianceWinterset | Form 990-N | No figure |
| Friends of Bunker Mill Bridge IncKalona | Form 990-N | No figure |
| Ringgold Conservation Foundation IncMount Ayr | Form 990-N | No figure |
| Friends of Pool 9-Upper Miss Refuge IncLansing | Form 990-N | No figure |
| Nishnabotna Water DefenderssAtlantic | Form 990-N | No figure |
| Byways of Iowa FoundationPostville | Form 990-N | No figure |
| Quad City Audubon SocietyBettendorf | Form 990-N | No figure |
| Dickinson County Community GardensSpirit Lake | Form 990-N | No figure |
| Little Sioux Valley Conservation AssociationPeterson | Form 990-N | No figure |
| Iowa Trust for Local ConservationOsage | Form 990-N | No figure |
| Loess Hills- Elysian Prairie Restoration and Conservation ProjeCastana | Form 990-N | No figure |
| Boone County Conservation FoundationOgden | Form 990-N | No figure |
| Adams County Conservation FoundationCorning | Form 990-N | No figure |
| Iowa Blood Trackers AssociationClear Lake | Form 990-N | No figure |
| Heartland Conservation Fund IncClive | Form 990-N | No figure |
| Izaak Walton League of America IncVictor | Form 990-N | No figure |
| Dubuque Farmer to FarmerDubuque | Form 990-N | No figure |
| Friends of Iowa Waters IncIowa City | Form 990-N | No figure |
| National Pollution Prevention RoundtableCedar Falls | Form 990-N | No figure |
| Dubuque Audubon SocietyDubuque | Form 990-N | No figure |
| Marshall County Chapter of the Izaak Walton League of AmericaMarshalltown | Form 990-N | No figure |
| Worthington Sportsmens Club IncorporatedWorthington | Form 990-N | No figure |
| Sioux City Garden ClubSioux City | Form 990-N | No figure |
| Gothic Area Tourism of Eldon CorporationEldon | Form 990-N | No figure |
| Natopakama Bittersweet IncCenter Point | Form 990-N | No figure |
| Des Moines Herb Study GroupDes Moines | Form 990-N | No figure |
| Scott County Beautification FoundationDavenport | Form 990-N | No figure |
| Tallgrass Prairie Audubon SocietyGrinnell | Form 990-N | No figure |
| Friends of Conservation IncCherokee | Form 990-N | No figure |
| Armstrong Heritage MuseumArmstrong | Form 990-N | No figure |
| Tri Rivers Conservation FoundationWapello | Form 990-N | No figure |
| Iowa Environmental Health AssociatWaterloo | Form 990-N | No figure |