| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Clara Wulfsen | City of Waukee | Supporting | GA91 |
| Doug Struyk | City of Waukee | Supporting | GA91 |
| Jennifer Dorman | City of Waukee | Supporting | GA91 |
| Jim Carney | City of Waukee | Supporting | GA91 |
| Kate Walton | Grow Clinton County | Undecided | GA91 |
| Madeleine Bradley | Grow Clinton County | Undecided | GA91 |
| Matt Eide | Grow Clinton County | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA91 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA91 |
| Census Lo-liyong | Iowa County Recorders Association | Undecided | GA91 |
| Stacie Herridge | Iowa County Recorders Association | Undecided | GA91 |
| Taylor McDonald | Iowa Ethics and Campaign Disclosure Board | Undecided | GA91 |
| Zach Goodrich | Iowa Ethics and Campaign Disclosure Board | Undecided | GA91 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA91 |
| Matt Gronewald | Iowa Farm Bureau Federation | Supporting | GA91 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Opposing | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA91 |
| Andrea Woodard | Iowa State Association of County Supervisors | Opposing | GA91 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA91 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA91 |
| Gary Grant | Linn County Board of Supervisors | Opposing | GA91 |
| Gary Grant | Linn County Board of Supervisors | Withdrawn | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Opposing | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Withdrawn | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA91 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA91 |
| Amy Campbell | Polk County - Board of Supervisors | Undecided | GA91 |
| Craig Patterson | Polk County - Board of Supervisors | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Opposing | GA91 |
| Gary Grant | Urban County Coalition | Withdrawn | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Opposing | GA91 |
| Larry Murphy | Urban County Coalition | Withdrawn | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |
| John Strathman | VALOR Iowa | Opposing | GA91 |