| Paige Yontz | AARP Iowa | Supporting | GA91 |
| Ted Stopulos | Alliant Energy Corporation | Opposing | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | 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 | Undecided | GA91 |
| Threase Harms | IBEW Iowa State Conference | 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 |
| 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 |
| Ethan Hohenadel | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| Haley Moon | Iowa Association of Electric Cooperatives | Undecided | GA91 |
| David Peck | Iowa Association of Municipal Utilities | Opposing | GA91 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Opposing | GA91 |
| Robert Palmer | Iowa Business Energy Coalition (IBEC) | Supporting | GA91 |
| Bob Rafferty | Iowa Business for Clean Energy | Supporting | GA91 |
| Christopher Rants | Iowa Business for Clean Energy | Supporting | GA91 |
| Jake Friedrichsen | Iowa Business for Clean Energy | Supporting | 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 |
| Kelsey Schott | Iowa Economic Alliance | Supporting | GA91 |
| Matt McKinney | Iowa Economic Alliance | Supporting | GA91 |
| RG Schwarm | Iowa Economic Alliance | Supporting | GA91 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA91 |
| Catherine Pollard | Iowa Environmental Council | Supporting | 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 |
| Irene DeMaris | Iowa Faith & Climate Network | Supporting | GA91 |
| Clair Lewis | Iowa Section American Water Works Association | Undecided | GA91 |
| Kate Walton | Iowa Section American Water Works Association | Undecided | GA91 |
| Matt Eide | Iowa Section American Water Works Association | Undecided | GA91 |
| Stephanie Weisenbach | Iowa Utilities Commission | Undecided | GA91 |
| David Adelman | MidAmerican Energy Company | Opposing | GA91 |
| Frank Chiodo | MidAmerican Energy Company | Opposing | GA91 |
| Matt Hinch | MidAmerican Energy Company | Opposing | GA91 |
| Onnalee Gettler | MidAmerican Energy Company | Opposing | GA91 |
| Paige Thorson | MidAmerican Energy Company | Opposing | GA91 |
| Sara Allen | MidAmerican Energy Company | Opposing | GA91 |
| Scott Newhard | MidAmerican Energy Company | Opposing | 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 |
| Logan Shine | National Federation of Independent Business (NFIB /IA) | Supporting | GA91 |
| Clair Lewis | West Des Moines Water Works | Undecided | GA91 |
| Kate Walton | West Des Moines Water Works | Undecided | GA91 |
| Matt Eide | West Des Moines Water Works | Undecided | GA91 |