| Ted Stopulos | Alliant Energy Corporation | Undecided | GA91 |
| Brad Epperly | American Clean Power Association | Supporting | GA91 |
| Casey Nickel | American Clean Power Association | Supporting | GA91 |
| Dustin Miller | American Clean Power Association | Supporting | GA91 |
| Mark Joyce | American Power Play | Supporting | GA91 |
| Katie Rock | BlueGreen Alliance | Undecided | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Supporting | GA91 |
| Cynthia Farmer | Center for Rural Affairs | Undecided | GA91 |
| Kevin Condon | Central Iowa Power Cooperative (CIPCO) | Undecided | GA91 |
| Brad Epperly | Clean Grid Alliance | Supporting | GA91 |
| Casey Nickel | Clean Grid Alliance | Supporting | GA91 |
| Dustin Miller | Clean Grid Alliance | Supporting | GA91 |
| Jeff Danielson | Clean Grid Alliance | Supporting | GA91 |
| Sandra Conlin | Clean Grid Alliance | Supporting | GA91 |
| Josh Mandelbaum | Environmental Law and Policy Center | Undecided | GA91 |
| Matt Ohloff | Environmental Law and Policy Center | Undecided | GA91 |
| Nick Laning | IBEW Iowa State Conference | Supporting | GA91 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA91 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA91 |
| Catherine Pollard | Iowa Environmental Council | Undecided | GA91 |
| Jordan Oster | Iowa Environmental Council | Undecided | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA91 |
| Michael Schmidt | Iowa Environmental Council | Undecided | GA91 |
| Threase Harms | Iowa Environmental Council | Undecided | GA91 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Opposing | GA91 |
| Matt Gronewald | Iowa Farm Bureau Federation | Opposing | GA91 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA91 |
| Catherine Pollard | Iowa Farmers Union | Undecided | GA91 |
| Threase Harms | Iowa Farmers Union | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Opposing | GA91 |
| Beth Manley | Iowa State Association of Counties | Opposing | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA91 |
| Andrea Woodard | Iowa State Association of County Supervisors | Opposing | GA91 |
| Beth Manley | Iowa State Association of County Supervisors | Opposing | GA91 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA91 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA91 |
| Stephanie Weisenbach | Iowa Utilities Commission | Undecided | GA91 |
| Dane Schumann | Mid-American Carpenters Regional Council | Undecided | GA91 |
| David Adelman | MidAmerican Energy Company | Undecided | GA91 |
| Frank Chiodo | MidAmerican Energy Company | Undecided | GA91 |
| Matt Hinch | MidAmerican Energy Company | Undecided | GA91 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA91 |
| Paige Thorson | MidAmerican Energy Company | Undecided | GA91 |
| Sara Allen | MidAmerican Energy Company | Undecided | GA91 |
| Scott Newhard | MidAmerican Energy Company | 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 | Supporting | GA91 |
| Jake Friedrichsen | NextEra Energy | Supporting | GA91 |
| Justin Hupfer | NextEra Energy | Supporting | GA91 |
| Michael Triplett | Ranger Power | 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 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |