| Ted Stopulos | Alliant Energy Corporation | Undecided | GA90 |
| Tony Phillips | Black Hills Energy | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Julie Smith | Iowa Association of Water Agencies | Undecided | GA90 |
| Matt McKinney | Iowa Association of Water Agencies | Undecided | GA90 |
| RG Schwarm | Iowa Association of Water Agencies | Undecided | GA90 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA90 |
| Kelly Meyers | Iowa Cattlemen's Association | Undecided | GA90 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Dave Duncan | Iowa Communications Alliance | Undecided | GA90 |
| Mike St. Clair | Iowa Communications Alliance | Undecided | GA90 |
| Nick Boeyink | Iowa Conservative Energy Forum | Supporting | GA90 |
| Nick Boeyink | Iowa Conservative Energy Forum | Undecided | GA90 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Opposing | GA90 |
| Matt Gronewald | Iowa Farm Bureau Federation | Opposing | GA90 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA90 |
| Ben Nuelle | Iowa Pork Producers Association | Supporting | GA90 |
| Jeff Smith | Iowa Pork Producers Association | Supporting | GA90 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Supporting | GA90 |
| Matt Fitzgerald | Iowa Pork Producers Association | Supporting | GA90 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA90 |
| William Peterson | Iowa State Association of Counties | Undecided | 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 |
| Geri Huser | Iowa Utilities Commission | Undecided | GA90 |
| Louis Vander Streek | Iowa Utilities Commission | Undecided | GA90 |
| Maison Bleam | Iowa Utilities Commission | Undecided | GA90 |
| Andy Conlin | Lumen | Undecided | GA90 |
| Taylor Teepell | Lumen | Undecided | GA90 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA90 |
| Paige Thorson | Monarch Bio Energy LLC | Supporting | GA90 |
| Jake Ketzner | Urbandale Water Utility | Undecided | GA90 |
| Larry Blixt | Urbandale Water Utility | Undecided | GA90 |
| Nick Boeyink | Urbandale Water Utility | Undecided | GA90 |