| 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 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Supporting | GA90 |
| Teresa Bomhoff | IA Mental Health Planning Council | Supporting | GA90 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Supporting | GA90 |
| Brad Cranston | Iowa Baptists For Biblical Values | Withdrawn | GA90 |
| Brad Cranston | Iowa Baptists For Biblical Values | Supporting | GA90 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Supporting | GA90 |
| Amy Campbell | Iowa Coalition Against Sexual Assault | Supporting | GA90 |
| Craig Patterson | Iowa Coalition Against Sexual Assault | Supporting | GA90 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA90 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA90 |
| Karl Schilling | Iowa Organization for Victim Assistance | Supporting | GA90 |
| Becky Tayler | Iowa Safe Schools | Supporting | GA90 |
| Damian Thompson | Iowa Safe Schools | 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 |
| Courtney Reyes | One Iowa | Supporting | GA90 |
| Keenan Crow | One Iowa | Supporting | GA90 |
| Courtney Reyes | One Iowa Action | Supporting | GA90 |
| Keenan Crow | One Iowa Action | Supporting | GA90 |
| Mazie Stilwell | Planned Parenthood Advocates of Iowa | Supporting | GA90 |
| Harry Ehrlich | Protect My Innocence | Withdrawn | GA90 |
| Harry Ehrlich | Protect My Innocence | Supporting | GA90 |
| John Butler | Protect My Innocence | Supporting | GA90 |