| Ted Stopulos | Alliant Energy Corporation | Undecided | GA89 |
| Johnathan Hladik | Center for Rural Affairs | Supporting | GA89 |
| Kate Hansen | Center for Rural Affairs | Supporting | GA89 |
| Clara Wulfsen | Department of Revenue | Undecided | GA89 |
| Josh Mandelbaum | Environmental Law and Policy Center | Supporting | GA89 |
| Steve Falck | Environmental Law and Policy Center | Supporting | GA89 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA89 |
| Cherie Miner | Iowa Annual Conference of United Methodist Church | Supporting | GA89 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Supporting | GA89 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA89 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Mike Rozenboom | Iowa Bankers Association | Undecided | GA89 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA89 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA89 |
| Dustin Miller | Iowa Business Energy Coalition (IBEC) | Undecided | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA89 |
| Nick Boeyink | Iowa Conservative Energy Forum | Supporting | GA89 |
| Chelsea Hoye | Iowa Environmental Council | Supporting | GA89 |
| Emilee Harris-Puricelli | Iowa Environmental Council | Supporting | GA89 |
| Threase Harms | Iowa Environmental Council | Supporting | GA89 |
| Irene DeMaris | Iowa Interfaith Power & Light | Supporting | GA89 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| Christopher Rants | Iowa Solar Energy Trade Association | Supporting | GA89 |
| John Cacciatore | Iowa Solar Energy Trade Association | Supporting | GA89 |
| Geri Huser | Iowa Utilities Board | Undecided | GA89 |
| Maison Bleam | Iowa Utilities Board | 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 |
| Onnalee Gettler | MidAmerican Energy Company | 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 |
| Doug Struyk | The Nature Conservancy | Supporting | GA89 |
| Jennifer Dorman | The Nature Conservancy | Supporting | GA89 |
| Jim Carney | The Nature Conservancy | Supporting | GA89 |
| Gary Grant | Urban County Coalition | Undecided | GA89 |
| Larry Murphy | Urban County Coalition | Undecided | GA89 |
| Meghan Malloy | Urban County Coalition | Undecided | GA89 |