| Amy Campbell | AARP Iowa | Undecided | GA90 |
| Craig Patterson | AARP Iowa | Undecided | GA90 |
| Paige Yontz | AARP Iowa | Undecided | GA90 |
| Jeffrey Boeyink | Alliant Energy Corporation | Supporting | GA90 |
| Ted Stopulos | Alliant Energy Corporation | Supporting | GA90 |
| Jake Highfill | Black Hills Energy | Supporting | GA90 |
| Tony Phillips | Black Hills Energy | Supporting | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Kate Hansen | Center for Rural Affairs | Opposing | GA90 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA90 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA90 |
| Bob Rafferty | Future Energy Iowa | Undecided | GA90 |
| Nick Laning | IBEW Iowa State Conference | Supporting | GA90 |
| Mark Joyce | ITC Midwest | Undecided | GA90 |
| Todd Schulz | ITC Midwest | Undecided | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Supporting | GA90 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Supporting | GA90 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Supporting | GA90 |
| John Hirl | Iowa Association of Municipal Utilities | Supporting | GA90 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Supporting | GA90 |
| Joe Murphy | Iowa Business Council | Supporting | GA90 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA90 |
| Dustin Miller | Iowa Business Energy Coalition (IBEC) | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA90 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Opposing | GA90 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA90 |
| Michael Schmidt | Iowa Environmental Council | Opposing | GA90 |
| Threase Harms | Iowa Environmental Council | Opposing | GA90 |
| Geri Huser | Iowa Utilities Commission | Undecided | GA90 |
| Louis Vander Streek | Iowa Utilities Commission | Undecided | GA90 |
| Maison Bleam | Iowa Utilities Commission | Undecided | GA90 |
| Chaz Allen | Iowa Utility Association | Supporting | GA90 |
| Dylan Gramlich | Laborers International Union of North America | Undecided | GA90 |
| David Adelman | MidAmerican Energy Company | Supporting | GA90 |
| Frank Chiodo | MidAmerican Energy Company | Supporting | GA90 |
| Lillie Brady | MidAmerican Energy Company | Supporting | GA90 |
| Matt Hinch | MidAmerican Energy Company | Supporting | GA90 |
| Onnalee Gettler | MidAmerican Energy Company | Supporting | GA90 |
| Sara Allen | MidAmerican Energy Company | Supporting | GA90 |
| Scott Newhard | MidAmerican Energy Company | Supporting | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |