| Robert Weiser | Annett Holdings | Undecided | GA90 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Supporting | GA90 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA90 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA90 |
| Dustin Miller | BNSF Railway Co. | Undecided | GA90 |
| Brad Epperly | Bayer U.S. LLC | Undecided | GA90 |
| Dustin Miller | Bayer U.S. LLC | Undecided | GA90 |
| Robert Weiser | CRST International | Undecided | GA90 |
| Jon Murphy | Casey's General Stores | Supporting | GA90 |
| Tom Cope | Casey's General Stores | Supporting | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Dale Woolery | Governors Office of Drug Control Policy | Undecided | GA90 |
| Susie Sher | Governors Office of Drug Control Policy | Undecided | GA90 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Jake Highfill | Home Builders Association of Iowa | Supporting | GA90 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA90 |
| Tony Phillips | Home Builders Association of Iowa | Supporting | GA90 |
| Brad Lint | Iowa Association for Justice | Opposing | GA90 |
| Kellie Paschke | Iowa Association for Justice | Opposing | GA90 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | GA90 |
| Troy Skinner | Iowa Association for Justice | Opposing | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA90 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA90 |
| Amy Campbell | Iowa Behavioral Health Association (IBHA) | Undecided | GA90 |
| Craig Patterson | Iowa Behavioral Health Association (IBHA) | Undecided | GA90 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA90 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA90 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA90 |
| Will Rogers | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA90 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA90 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA90 |
| Jim Carney | Iowa State Bar Association | Undecided | GA90 |
| Michael Gronstal | Iowa State Building and Construction Trades | Opposing | GA90 |
| Ben Hammes | Master Builders of Iowa | Supporting | GA90 |
| Julie Smith | Master Builders of Iowa | Supporting | GA90 |
| Logan Shine | Master Builders of Iowa | Supporting | GA90 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA90 |
| Dane Schumann | North Central States Regional Council of Carpenters | Opposing | GA90 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA90 |