| Dustin Rush | Americans For Prosperity | Supporting | GA91 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA91 |
| Katie Rock | BlueGreen Alliance | Opposing | GA91 |
| Andy Conlin | Cicero Action | Supporting | GA91 |
| Dennis Tibben | Cicero Action | Supporting | GA91 |
| David Peck | FUELIowa (PMCI) | Supporting | GA91 |
| Marc Beltrame | FUELIowa (PMCI) | Supporting | GA91 |
| Andy Conlin | Foundation for Government Accountability Action | Supporting | GA91 |
| Dennis Tibben | Foundation for Government Accountability Action | Supporting | GA91 |
| Megan Schlesky | IPERS | Undecided | 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 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA91 |
| Jason Chapman | Iowa Board of Regents | Undecided | GA91 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA91 |
| Jillian Carlson | Iowa Board of Regents | Undecided | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Undecided | GA91 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Sarah Vanderploeg | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA91 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA91 |
| Deanna Triplett | Iowa Finance Authority | Undecided | GA91 |
| Chance McElhaney | Iowa Insurance Division | Undecided | GA91 |
| Cody Butenhoff | Iowa Insurance Division | Undecided | GA91 |
| Melissa Peterson | Iowa State Education Association | Undecided | GA91 |
| Chaz Allen | Iowa Utility Association | Undecided | 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 |
| Tony Phillips | Iowans for Tax Relief | Supporting | GA91 |
| Mona Bond | Manatts Inc. | Undecided | GA91 |
| Kileen Lindgren | Pacific Legal Foundation | Supporting | GA91 |
| Dave Daughton | Rural School Advocates of Iowa | Undecided | GA91 |
| Margaret Buckton | Rural School Advocates of Iowa | Undecided | GA91 |
| Dave Daughton | School Administrators of Iowa | Undecided | GA91 |
| Andy Conlin | State Policy Network | Supporting | GA91 |
| Dennis Tibben | State Policy Network | Supporting | GA91 |
| Margaret Buckton | Urban Education Network of Iowa | Undecided | GA91 |