| Terry Harrmann | Alliant Energy Corporation | Undecided | GA85 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA85 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA85 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA85 |
| Susan Walter | Black Hills Energy | Undecided | GA85 |
| John Pederson | CN | Undecided | GA85 |
| Matt Eide | CN | Undecided | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA85 |
| Scott Sundstrom | Iowa Association of Electric Cooperatives | Undecided | GA85 |
| Tim Coonan | Iowa Association of Electric Cooperatives | Undecided | GA85 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA85 |
| Carolann Jensen | Iowa Finance Authority | Supporting | GA85 |
| Wes Peterson | Iowa Finance Authority | Supporting | GA85 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA85 |
| Paula Dierenfeld | Iowa Geothermal Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Geothermal Association | Undecided | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Undecided | GA85 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA85 |
| William Peterson | Iowa State Association of Counties | Undecided | GA85 |
| Doug Struyk | Iowa State Bar Association | Supporting | GA85 |
| George Appleby | Iowa State Bar Association | Supporting | GA85 |
| Jennifer Tyler | Iowa State Bar Association | Supporting | GA85 |
| Jim Carney | Iowa State Bar Association | Supporting | GA85 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA85 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA85 |
| Mona Bond | Manatts Inc. | Undecided | GA85 |
| John Davis | MidAmerican Energy Company | Undecided | GA85 |
| Michael Triplett | Union Pacific Railroad | Opposing | GA85 |
| Michael Triplett | Union Pacific Railroad | Undecided | GA85 |