| Melissa Speed | AFSCME Iowa Council 61 | Opposing | 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 |
| Kelli Soyer | Common Good Iowa | Opposing | GA90 |
| Mike Owen | Common Good Iowa | Opposing | GA90 |
| Natalie Veldhouse | Common Good Iowa | Opposing | GA90 |
| Sheila Hansen | Common Good Iowa | Opposing | GA90 |
| Chelsea Hoye | EveryStep | Undecided | GA90 |
| Nick Laning | EveryStep | Undecided | GA90 |
| Threase Harms | EveryStep | Undecided | GA90 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA90 |
| Bethany Niermeyer | Informed Choice Iowa | Supporting | GA90 |
| Amy Campbell | Iowa Association of Area Agencies on Aging | Undecided | GA90 |
| Craig Patterson | Iowa Association of Area Agencies on Aging | Undecided | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA90 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA90 |
| Robert Cook | Iowa Atheists and Freethinkers | Opposing | GA90 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA90 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA90 |
| Carolann Jensen | Iowa Board of Regents | Undecided | GA90 |
| Jennifer Harbison | Iowa Board of Regents | Undecided | GA90 |
| Keith Saunders | Iowa Board of Regents | Undecided | GA90 |
| Mary Braun | Iowa Board of Regents | Undecided | GA90 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA90 |
| Carrie Malone | Iowa Department of Health and Human Services | Undecided | GA90 |
| Dax Oberreuter | Iowa Department of Health and Human Services | Undecided | GA90 |
| Jancy Nielson | Iowa Department of Health and Human Services | 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 |
| Amy Campbell | Iowa Nurses Association | Undecided | GA90 |
| Craig Patterson | Iowa Nurses Association | Undecided | GA90 |
| Lina Tucker Reinders | Iowa Public Health Association | Undecided | GA90 |
| Taylor McDonald | Iowa Public Health Association | Undecided | 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 | Opposing | GA90 |
| Jennifer Dorman | Iowa State Bar Association | Opposing | GA90 |
| Jim Carney | Iowa State Bar Association | Opposing | GA90 |
| Michael Gronstal | Iowa State Building and Construction Trades | Opposing | GA90 |
| Michael Gronstal | Iowa State Building and Construction Trades | Undecided | GA90 |
| Dylan Gramlich | Laborers International Union of North America | Opposing | GA90 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Undecided | GA90 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA90 |
| Brandon Geib | Wellmark, Inc. | Undecided | GA90 |
| Scott Sundstrom | Wellmark, Inc. | Undecided | GA90 |