| Gary Grant | City of Cedar Rapids | Undecided | GA89 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA89 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA89 |
| Kate Walton | Eide Walton | Undecided | GA89 |
| Madeleine Bradley | Eide Walton | Undecided | GA89 |
| Matt Eide | Eide Walton | Undecided | GA89 |
| Brad Lint | Iowa Association for Justice | Undecided | GA89 |
| Lisa Davis-Cook | Iowa Association for Justice | Undecided | GA89 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA89 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA89 |
| Sydney Gangestad | Iowa Confluence Water Trails | Undecided | GA89 |
| Tim Coonan | Iowa Confluence Water Trails | Undecided | GA89 |
| Jim Obradovich | Iowa Conservation Alliance | Undecided | GA89 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Supporting | GA89 |
| Chelsea Hoye | Iowa Rivers Revival | Undecided | GA89 |
| Emilee Harris-Puricelli | Iowa Rivers Revival | Undecided | GA89 |
| Nick Laning | Iowa Rivers Revival | Undecided | GA89 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA89 |
| MIke Delaney | Izaak Walton League - Iowa Division | Undecided | GA89 |
| Gary Grant | Lake Delhi Combined Water Quality & Recreational Facility District | Undecided | GA89 |
| Larry Murphy | Lake Delhi Combined Water Quality & Recreational Facility District | Undecided | GA89 |
| Meghan Malloy | Lake Delhi Combined Water Quality & Recreational Facility District | Undecided | GA89 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA89 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA89 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA89 |
| Amy Campbell | Loess Hills Alliance | Undecided | GA89 |
| Craig Patterson | Loess Hills Alliance | Undecided | GA89 |
| Kate Walton | Missouri River Energy Services | Undecided | GA89 |
| Madeleine Bradley | Missouri River Energy Services | Undecided | GA89 |
| Matt Eide | Missouri River Energy Services | Undecided | GA89 |
| Amy Campbell | Okoboji Tourism | Undecided | GA89 |
| Craig Patterson | Okoboji Tourism | Undecided | GA89 |
| Gary Grant | Urban County Coalition | Undecided | GA89 |
| Larry Murphy | Urban County Coalition | Undecided | GA89 |
| Meghan Malloy | Urban County Coalition | Undecided | GA89 |