| Melissa Speed | AFSCME Iowa Council 61 | Supporting | GA90 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA90 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA90 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Supporting | GA90 |
| Drew Klein | Americans For Prosperity | Supporting | GA90 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Brad Lint | Iowa Association for Justice | Supporting | GA90 |
| Lisa Davis-Cook | Iowa Association for Justice | Supporting | 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 Broadcasters Association | Supporting | GA90 |
| Dustin Miller | Iowa Broadcasters Association | Supporting | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| David Walker | Iowa Commission on Uniform State Laws c/o David S. Walker, Chair | Supporting | GA90 |
| Julie Smith | Iowa Commission on Uniform State Laws c/o David S. Walker, Chair | Supporting | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Supporting | GA90 |
| Robert Ussery | Iowa Minuteman Civil Defense Corps | Supporting | GA90 |
| Brad Epperly | Iowa Newspaper Association | Supporting | GA90 |
| Dustin Miller | Iowa Newspaper Association | Supporting | GA90 |
| Brett Toresdahl | Iowa Public Information Board | Withdrawn | GA90 |
| Brett Toresdahl | Iowa Public Information Board | Supporting | GA90 |
| Erika Eckley | Iowa Public Information Board | Withdrawn | GA90 |
| Erika Eckley | Iowa Public Information Board | Supporting | GA90 |
| Margaret Johnson | Iowa Public Information Board | Supporting | GA90 |
| Doug Struyk | Iowa State Bar Association | Supporting | GA90 |
| Jennifer Dorman | Iowa State Bar Association | Supporting | GA90 |
| Jim Carney | Iowa State Bar Association | Supporting | GA90 |
| Kate Walton | Motion Picture Association, Inc. | Supporting | GA90 |
| Madeleine Bradley | Motion Picture Association, Inc. | Supporting | GA90 |
| Matt Eide | Motion Picture Association, Inc. | Supporting | GA90 |
| Betty Andrews | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Supporting | GA90 |
| Russell Lovell | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Supporting | GA90 |