| Amy Campbell | AARP Iowa | Opposing | GA89 |
| Brad Anderson | AARP Iowa | Opposing | GA89 |
| Craig Patterson | AARP Iowa | Opposing | GA89 |
| Troy Price | AFSCME Iowa Council 61 | Opposing | GA89 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA89 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA89 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA89 |
| Jane Hudson | Disability Rights Iowa | Opposing | GA89 |
| Teresa Bomhoff | IA Mental Health Planning Council | Opposing | GA89 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA89 |
| Amy Campbell | Iowa Association of Area Agencies on Aging | Opposing | GA89 |
| Craig Patterson | Iowa Association of Area Agencies on Aging | Opposing | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA89 |
| Adam Mason | Iowa Citizens for Community Improvement Action Fund | Opposing | GA89 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA89 |
| Bill Kallestad | Iowa Developmental Disabilities Council | Opposing | GA89 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA89 |
| Erin Cubit | Iowa Hospital Association | Undecided | GA89 |
| J. Norris | Iowa Hospital Association | Undecided | GA89 |
| Kim Murphy | Iowa Hospital Association | Undecided | GA89 |
| Maureen Keehnle | Iowa Hospital Association | Undecided | GA89 |
| Nicole Proesch | Iowa Hospital Association | Undecided | GA89 |
| Robert Ussery | Iowa Minuteman Civil Defense Corps | Supporting | GA89 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA89 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA89 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA89 |
| William Peterson | Iowa State Association of Counties | Opposing | GA89 |
| Jamie Cashman | Iowa State Association of County Auditors | Opposing | GA89 |
| Kristi Harshbarger | Iowa State Association of County Auditors | Opposing | GA89 |
| Lucas Beenken | Iowa State Association of County Auditors | Opposing | GA89 |
| William Peterson | Iowa State Association of County Auditors | Opposing | GA89 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA89 |
| Morgan Miller | Iowa State Education Association | Opposing | GA89 |
| Alan Ostergren | Kirkwood Institute | Supporting | GA89 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA89 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA89 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA89 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA89 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA89 |
| David Walker | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Opposing | GA89 |
| Courtney Reyes | One Iowa | Opposing | GA89 |
| Keenan Crow | One Iowa | Opposing | GA89 |
| Courtney Reyes | One Iowa Action | Opposing | GA89 |
| Keenan Crow | One Iowa Action | Opposing | GA89 |
| Andy Conlin | Opportunity Solutions Project | Supporting | GA89 |
| Doug Struyk | Runbeck Election Services, Inc. | Undecided | GA89 |
| Jennifer Dorman | Runbeck Election Services, Inc. | Undecided | GA89 |
| Jim Carney | Runbeck Election Services, Inc. | Undecided | GA89 |
| Kate Walton | Runbeck Election Services, Inc. | Undecided | GA89 |
| Matt Eide | Runbeck Election Services, Inc. | Undecided | GA89 |
| Gary Grant | Urban County Coalition | Undecided | GA89 |
| Larry Murphy | Urban County Coalition | Undecided | GA89 |
| Meghan Malloy | Urban County Coalition | Undecided | GA89 |