| Dustin Rush | Americans For Prosperity | Supporting | GA91 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA91 |
| Gary Grant | City of Cedar Rapids | Undecided | GA91 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA91 |
| Brad Epperly | City of Marion | Undecided | GA91 |
| Casey Nickel | City of Marion | Undecided | GA91 |
| Dustin Miller | City of Marion | Undecided | GA91 |
| Clara Wulfsen | City of Waukee | Opposing | GA91 |
| Doug Struyk | City of Waukee | Withdrawn | GA91 |
| Doug Struyk | City of Waukee | Opposing | GA91 |
| Jennifer Dorman | City of Waukee | Withdrawn | GA91 |
| Jennifer Dorman | City of Waukee | Opposing | GA91 |
| Jim Carney | City of Waukee | Withdrawn | GA91 |
| Jim Carney | City of Waukee | Opposing | GA91 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| Emily Piper | Iowa Association of School Boards | Supporting | GA91 |
| Michelle Johnson | Iowa Association of School Boards | Supporting | GA91 |
| Chelsea Hoye | Iowa League of Cities | Undecided | GA91 |
| Cody Carlson | Iowa League of Cities | Undecided | GA91 |
| Brad Epperly | Iowa State Association of Assessors | Undecided | GA91 |
| Casey Nickel | Iowa State Association of Assessors | Undecided | GA91 |
| Dustin Miller | Iowa State Association of Assessors | 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 |
| Andrea Woodard | Iowa State Association of County Auditors | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of County Auditors | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of County Auditors | Undecided | GA91 |
| Andrea Woodard | 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 |
| Nate Ristow | Iowa Taxpayers Association | Supporting | GA91 |
| Andy Conlin | Iowans for Tax Relief | Supporting | 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 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA91 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA91 |
| Chloe Gayer | Professional Developers of Iowa (PDI) | Undecided | GA91 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA91 |
| Jessica Seelinger | Professional Developers of Iowa (PDI) | Undecided | GA91 |
| Dave Daughton | Rural School Advocates of Iowa | Supporting | GA91 |
| Margaret Buckton | Rural School Advocates of Iowa | Supporting | GA91 |
| Dave Daughton | School Administrators of Iowa | Supporting | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |
| Margaret Buckton | Urban Education Network of Iowa | Supporting | GA91 |