| Ted Stopulos | Alliant Energy Corporation | Undecided | GA91 |
| Brad Epperly | American Clean Power Association | Undecided | GA91 |
| Casey Nickel | American Clean Power Association | Undecided | GA91 |
| Dustin Miller | American Clean Power Association | Undecided | GA91 |
| Brad Epperly | Clean Grid Alliance | Undecided | GA91 |
| Casey Nickel | Clean Grid Alliance | Undecided | GA91 |
| Dustin Miller | Clean Grid Alliance | Undecided | GA91 |
| Jeff Danielson | Clean Grid Alliance | Undecided | GA91 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA91 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA91 |
| Andy Conlin | Invenergy | Undecided | GA91 |
| Colleen Smith | Invenergy | Undecided | GA91 |
| Dennis Tibben | Invenergy | Undecided | GA91 |
| Kenna Mulligan-Sissman | Invenergy | Undecided | GA91 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | 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 |
| Catherine Pollard | Iowa Environmental Council | Supporting | GA91 |
| Catherine Pollard | Iowa Environmental Council | Undecided | GA91 |
| Cody Smith | Iowa Environmental Council | Supporting | GA91 |
| Colleen Fowle | Iowa Environmental Council | Supporting | GA91 |
| Jordan Oster | Iowa Environmental Council | Supporting | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Supporting | GA91 |
| Michael Schmidt | Iowa Environmental Council | Supporting | GA91 |
| Sarah Green | Iowa Environmental Council | Supporting | GA91 |
| Threase Harms | Iowa Environmental Council | Supporting | GA91 |
| Threase Harms | Iowa Environmental Council | Undecided | GA91 |
| Jefferson Fink | Iowa Public Airports Association | Undecided | GA91 |
| Jim Obradovich | Iowa Public Airports Association | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA91 |
| Stephanie Weisenbach | Iowa Utilities Commission | Undecided | GA91 |
| Chaz Allen | Iowa Utility Association | Undecided | GA91 |
| Matt Hinch | MidAmerican Energy Company | Undecided | GA91 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA91 |
| Ben Gentz | Missouri River Energy Services | Undecided | GA91 |
| Clair Lewis | Missouri River Energy Services | Undecided | GA91 |
| Kate Walton | Missouri River Energy Services | Undecided | GA91 |
| Matt Eide | Missouri River Energy Services | Undecided | GA91 |
| Christopher Rants | NextEra Energy | Undecided | GA91 |
| Jake Friedrichsen | NextEra Energy | Undecided | GA91 |
| Doug Struyk | The Nature Conservancy | Undecided | GA91 |
| Emily Kavanagh | The Nature Conservancy | Undecided | GA91 |
| Jennifer Dorman | The Nature Conservancy | Undecided | GA91 |
| Jim Carney | The Nature Conservancy | Undecided | GA91 |