| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA90 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA90 |
| Christopher Riley | Archer Daniels Midland Company | Opposing | GA90 |
| Scott Newhard | Associated General Contractors of Iowa | Undecided | GA90 |
| Brian Selinger | ITC Midwest | Undecided | GA90 |
| Mark Joyce | ITC Midwest | Undecided | GA90 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA90 |
| David Peck | Iowa Association of Municipal Utilities | Undecided | GA90 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Undecided | GA90 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Supporting | GA90 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Matthew Covington | Iowa Citizens for Community Improvement Action Fund | Supporting | GA90 |
| Chelsea Hoye | Iowa Farmers Union | Undecided | GA90 |
| Threase Harms | Iowa Farmers Union | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Undecided | GA90 |
| Amber Shanahan-Fricke | Iowa Judicial Branch - Supreme Court | Undecided | GA90 |
| Caitlin Jarzen | Iowa Judicial Branch - Supreme Court | Undecided | GA90 |
| Megan Tooker | Iowa Judicial Branch - Supreme Court | Undecided | GA90 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Opposing | GA90 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Opposing | GA90 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA90 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA90 |
| Louis Vander Streek | Iowa Utilities Commission | Undecided | GA90 |
| Maison Bleam | Iowa Utilities Commission | Undecided | GA90 |
| Chaz Allen | Iowa Utility Association | Undecided | GA90 |
| Victoria Sinclair | Land of the Free Action | Supporting | GA90 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA90 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA90 |
| David Adelman | MidAmerican Energy Company | Undecided | GA90 |
| Frank Chiodo | MidAmerican Energy Company | Undecided | GA90 |
| Matt Hinch | MidAmerican Energy Company | Undecided | GA90 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA90 |
| Paige Thorson | MidAmerican Energy Company | Undecided | GA90 |
| Sara Allen | MidAmerican Energy Company | Undecided | GA90 |
| Ben Gentz | Missouri River Energy Services | Undecided | GA90 |
| Kate Walton | Missouri River Energy Services | Undecided | GA90 |
| Madeleine Bradley | Missouri River Energy Services | Undecided | GA90 |
| Matt Eide | Missouri River Energy Services | Undecided | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Chloe Gayer | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| BRITTANY LUMLEY | Summit Carbon Solutions | Opposing | GA90 |
| Courtney Craig | Summit Carbon Solutions | Opposing | GA90 |
| Elliott Meyer | Summit Carbon Solutions | Opposing | GA90 |
| Jake Ketzner | Summit Carbon Solutions | Opposing | GA90 |
| Jeffrey Boeyink | Summit Carbon Solutions | Opposing | GA90 |