| Paige Yontz | AARP Iowa | Undecided | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| Casey Nickel | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| Elliott Gebel | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| Ethan Hohenadel | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| Haley Moon | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Supporting | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Supporting | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA91 |
| Katie Biechler | Iowa Citizens for Community Improvement Action Fund | Supporting | GA91 |
| Cody Smith | Iowa Environmental Council | Undecided | GA91 |
| Colleen Fowle | Iowa Environmental Council | Undecided | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA91 |
| Michael Schmidt | Iowa Environmental Council | Undecided | GA91 |
| Noah Hackbart | Iowa Environmental Council | Undecided | GA91 |
| Sarah Green | Iowa Environmental Council | Undecided | GA91 |
| Threase Harms | Iowa Environmental Council | Undecided | GA91 |
| Noah Hackbart | Iowa Farmers Union | Supporting | GA91 |
| Threase Harms | Iowa Farmers Union | Supporting | GA91 |
| Stephanie Weisenbach | Iowa Utilities Commission | Undecided | GA91 |
| Jefferson Fink | Land of the Free Action | Supporting | GA91 |
| Victoria Sinclair | Land of the Free Action | Supporting | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Ben Gentz | Missouri River Energy Services | Undecided | GA91 |
| Kate Walton | Missouri River Energy Services | Undecided | GA91 |
| Madeleine Bradley | Missouri River Energy Services | Undecided | GA91 |
| Matt Eide | Missouri River Energy Services | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |
| John Strathman | VALOR Iowa | Supporting | GA91 |