| Melissa Speed | AFSCME Iowa Council 61 | Opposing | GA90 |
| Stacy Frelund | American Heart Association | Opposing | GA90 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Emilee Harris-Puricelli | City of Des Moines | Undecided | GA90 |
| Jen Schulte | City of Des Moines | Undecided | GA90 |
| Doug Struyk | City of Waukee | Undecided | GA90 |
| Jennifer Dorman | City of Waukee | Undecided | GA90 |
| Jim Carney | City of Waukee | Undecided | GA90 |
| Anne Discher | Common Good Iowa | Opposing | GA90 |
| Anne Discher | Common Good Iowa | Undecided | GA90 |
| Mike Owen | Common Good Iowa | Opposing | GA90 |
| Mike Owen | Common Good Iowa | Undecided | GA90 |
| Sean Finn | Common Good Iowa | Opposing | GA90 |
| Sean Finn | Common Good Iowa | Undecided | GA90 |
| Sheila Hansen | Common Good Iowa | Opposing | GA90 |
| Luke Elzinga | Des Moines Area Religious Council | Opposing | GA90 |
| Chelsea Hoye | Des Moines University | Opposing | GA90 |
| Nick Laning | Des Moines University | Opposing | GA90 |
| Threase Harms | Des Moines University | Opposing | GA90 |
| Catherine Johnson | Disability Rights Iowa | Opposing | GA90 |
| Brad Epperly | Ellipsis | Opposing | GA90 |
| Casey Nickel | Ellipsis | Opposing | GA90 |
| Dustin Miller | Ellipsis | Opposing | GA90 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Opposing | GA90 |
| Chelsea Hoye | EveryStep | Opposing | GA90 |
| Nick Laning | EveryStep | Opposing | GA90 |
| Threase Harms | EveryStep | Opposing | GA90 |
| Andrea Dencklau | Iowa ACEs 360 | Opposing | GA90 |
| Lisa Cushatt | Iowa ACEs 360 | Opposing | GA90 |
| MaryNelle Trefz | Iowa ACEs 360 | Opposing | GA90 |
| Robert Cook | Iowa Atheists and Freethinkers | Opposing | GA90 |
| Di Findley | Iowa CareGivers | Opposing | GA90 |
| Larry Murphy | Iowa Catholic Conference | Opposing | GA90 |
| Tom Chapman | Iowa Catholic Conference | Opposing | GA90 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA90 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA90 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA90 |
| Carlyn Crowe | Iowa Developmental Disabilities Council | Opposing | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA90 |
| Alan Kemp | Iowa League of Cities | Undecided | GA90 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA90 |
| Robert Palmer | Iowa League of Cities | Undecided | GA90 |
| Kate Walton | Iowa Public Health Association | Opposing | GA90 |
| Madeleine Bradley | Iowa Public Health Association | Opposing | GA90 |
| Matt Eide | Iowa Public Health Association | Opposing | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA90 |
| William Peterson | Iowa State Association of Counties | Opposing | GA90 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA90 |
| William Peterson | Iowa State Association of County Supervisors | Opposing | GA90 |
| Andy Conlin | Iowans for Tax Relief | Supporting | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Supporting | GA90 |
| Jake Highfill | Iowans for Tax Relief | Supporting | GA90 |
| Tony Phillips | Iowans for Tax Relief | Supporting | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA90 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA90 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA90 |
| Betty Andrews | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Opposing | GA90 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA90 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Opposing | GA90 |
| Andy Conlin | Opportunity Solutions Project | Supporting | GA90 |
| Dennis Tibben | Opportunity Solutions Project | Supporting | GA90 |
| Cyndi Pederson | United Way of Central Iowa | Opposing | GA90 |
| Dave Stone | United Way of Central Iowa | Opposing | GA90 |
| Elizabeth Crimmings | United Way of Central Iowa | Opposing | GA90 |
| John Pederson | United Way of Central Iowa | Opposing | GA90 |
| Jon Murphy | United Ways of Iowa | Opposing | GA90 |
| Tom Cope | United Ways of Iowa | Opposing | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |