| Becca Eastwood | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA91 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA91 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA91 |
| Dustin Rush | Americans For Prosperity | Supporting | GA91 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Kate Walton | City of Bettendorf | Undecided | GA91 |
| Madeleine Bradley | City of Bettendorf | Undecided | GA91 |
| Matt Eide | City of Bettendorf | Undecided | GA91 |
| Gary Grant | City of Cedar Rapids | Undecided | GA91 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA91 |
| Clara Wulfsen | City of Des Moines | Undecided | GA91 |
| Doug Struyk | City of Des Moines | Undecided | GA91 |
| Emilee Harris-Puricelli | City of Des Moines | Undecided | GA91 |
| Jen Schulte | City of Des Moines | Undecided | GA91 |
| Jennifer Dorman | City of Des Moines | Undecided | GA91 |
| Jim Carney | City of Des Moines | Undecided | GA91 |
| Brad Epperly | City of Marion | Undecided | GA91 |
| Casey Nickel | City of Marion | Undecided | GA91 |
| Dustin Miller | City of Marion | Undecided | 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 |
| Megan Clyman | Iowa County Recorders Association | Undecided | GA91 |
| Stacie Herridge | Iowa County Recorders Association | 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 |
| Chelsea Hoye | Iowa League of Cities | Undecided | GA91 |
| Cody Carlson | Iowa League of Cities | Undecided | GA91 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA91 |
| Andrea Woodard | 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 |
| Chris Hagenow | Iowans for Tax Relief | Supporting | GA91 |
| Jake Highfill | Iowans for Tax Relief | Supporting | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | 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 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |