| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA86 |
| Rachel Geilenfeld | Iowa Association of Business and Industry (ABI) | Supporting | GA86 |
| Zach Dalluge | Iowa Association of Business and Industry (ABI) | Supporting | GA86 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA86 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA86 |
| Don Petersen | Iowa Farm Bureau Federation | Supporting | GA86 |
| Marty Schwager | Iowa Farm Bureau Federation | Supporting | GA86 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA86 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Scott Sundstrom | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA86 |
| George Appleby | Iowa State Bar Association | Undecided | GA86 |
| Jennifer Tyler | Iowa State Bar Association | Undecided | GA86 |
| Jim Carney | Iowa State Bar Association | Undecided | GA86 |
| Brad Hudson | Iowa State Education Association | Opposing | GA86 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA86 |
| Robert Hartwig | Iowa Trust Association | Undecided | GA86 |
| Sharon Presnall | Iowa Trust Association | Undecided | GA86 |
| Ernie Adkison | Iowans for Tax Relief | Supporting | GA86 |
| Robert Solt | Iowans for Tax Relief | Supporting | GA86 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Supporting | GA86 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Opposing | GA86 |