| Scott Newhard | Associated General Contractors of Iowa | Undecided | GA91 |
| Jefferson Fink | Conservation Districts of Iowa | Undecided | GA91 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA91 |
| Michael Triplett | Iowa Alliance of Surety Companies | Supporting | GA91 |
| Jefferson Fink | Iowa Conservation Alliance | Undecided | GA91 |
| Jim Obradovich | Iowa Conservation Alliance | Undecided | GA91 |
| Colin Tadlock | Iowa Department of Agriculture & Land Stewardship | Undecided | GA91 |
| Michael Triplett | Iowa Limestone Producers Association | Supporting | GA91 |
| Michael Triplett | Iowa Limestone Producers Association | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Undecided | GA91 |
| Beth Manley | Iowa State Association of Counties | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of County Supervisors | Undecided | GA91 |
| Beth Manley | Iowa State Association of County Supervisors | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA91 |
| Mark Joyce | Koloma | Undecided | GA91 |
| Jeff Smith | Marion County Board of Supervisors | Supporting | GA91 |
| Kellie Paschke | Marion County Board of Supervisors | Supporting | GA91 |
| Maggie Smith-Fitzgerald | Marion County Board of Supervisors | Supporting | GA91 |
| Matt Fitzgerald | Marion County Board of Supervisors | Supporting | GA91 |