| Drew Klein | Americans For Prosperity | Undecided | GA89 |
| Tyler Raygor | Americans For Prosperity | Undecided | GA89 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA89 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA89 |
| Kate Walton | CN Rail | Undecided | GA89 |
| Matt Eide | CN Rail | Undecided | GA89 |
| Kerry Koonce | Central Iowa Power Cooperative (CIPCO) | Supporting | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA89 |
| Hannah McDowell | Grow Clinton County | Undecided | GA89 |
| Nick Laning | Grow Clinton County | Undecided | GA89 |
| Threase Harms | Grow Clinton County | Undecided | GA89 |
| Todd Schulz | ITC Midwest | Undecided | GA89 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Supporting | GA89 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Supporting | GA89 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Supporting | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Brad Epperly | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Dustin Miller | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Bill Peard | Iowa Cable and Telecommunications Association | Undecided | GA89 |
| Dave Duncan | Iowa Communications Alliance | Undecided | GA89 |
| Katie Hall | Iowa Communications Alliance | Undecided | GA89 |
| Mike St. Clair | Iowa Communications Alliance | Undecided | GA89 |
| Don Petersen | Iowa Farm Bureau Federation | Opposing | GA89 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Opposing | GA89 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA89 |
| Jim Obradovich | Iowa Interstate Railroad | Undecided | GA89 |
| Robert Mulqueen | Iowa Interstate Railroad | Undecided | GA89 |
| Alan Kemp | Iowa League of Cities | Undecided | GA89 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA89 |
| Robert Palmer | Iowa League of Cities | Undecided | GA89 |
| Maison Bleam | Iowa Utilities Board | Undecided | GA89 |
| David Adelman | Lumen | Undecided | GA89 |
| Frank Chiodo | Lumen | Undecided | GA89 |
| Matt Hinch | Lumen | Undecided | GA89 |
| Sara Allen | Lumen | Undecided | GA89 |
| Taylor Teepell | Lumen | Undecided | GA89 |
| Kate Walton | Missouri River Energy Services | Undecided | GA89 |
| Kersten Johnson | Missouri River Energy Services | Undecided | GA89 |
| Matt Eide | Missouri River Energy Services | Undecided | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Michael Triplett | Union Pacific Railroad | Opposing | GA89 |