| Dustin Rush | Americans For Prosperity | Supporting | GA91 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA91 |
| Andy Conlin | Foundation for Government Accountability Action | Supporting | GA91 |
| Dennis Tibben | Foundation for Government Accountability Action | Supporting | GA91 |
| Mike Heller | Iowa Academy of Trial Lawyers | Supporting | 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 |
| Casey Ficek | Iowa Bankers Association | Undecided | GA91 |
| Haley Ledford | Iowa Bankers Association | Undecided | GA91 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA91 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA91 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA91 |
| Jillian Carlson | Iowa Board of Regents | Undecided | GA91 |
| Keith Saunders | Iowa Board of Regents | Undecided | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Matt McKinney | Iowa Chapter, American Institute of Architects | Undecided | GA91 |
| RG Schwarm | Iowa Chapter, American Institute of Architects | Undecided | GA91 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA91 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA91 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Sarah Vanderploeg | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Jeff Pitts | Iowa Faith and Freedom Coalition | Supporting | GA91 |
| Frederick Haskins | Iowa Insurance Associates | Supporting | GA91 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA91 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA91 |
| Jim Carney | Iowa State Bar Association | Undecided | GA91 |
| Stephanie Weisenbach | Iowa Utilities Commission | Undecided | GA91 |
| Doug Struyk | Iowa Veterinary Medical Association | Undecided | GA91 |
| Jennifer Dorman | Iowa Veterinary Medical Association | Undecided | GA91 |
| Jim Carney | Iowa Veterinary Medical 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 |
| Onnalee Gettler | MidAmerican Energy Company | 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 |
| Margaret Buckton | Urban Education Network of Iowa | Undecided | GA91 |
| Mike Heller | Waste Management, Inc. | Undecided | GA91 |
| Brandon Geib | Wellmark, Inc. | Undecided | GA91 |
| Scott Sundstrom | Wellmark, Inc. | Undecided | GA91 |