| Emily Piper | American Association of Marriage and Family Therapy | Opposing | GA90 |
| Mark Stringer | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA90 |
| Pete McRoberts | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA90 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Opposing | GA90 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA90 |
| Amy Campbell | Iowa Affiliate of the American College of Nurse-Midwives | Opposing | GA90 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA90 |
| Michelle Johnson | Iowa Association of School Boards | Undecided | GA90 |
| Robert Cook | Iowa Atheists and Freethinkers | Opposing | GA90 |
| Amy Campbell | Iowa Chapter of the National Association of Pediatric Nurse Practitioners | Opposing | GA90 |
| Craig Patterson | Iowa Chapter of the National Association of Pediatric Nurse Practitioners | Opposing | GA90 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA90 |
| Amy Campbell | Iowa Coalition Against Sexual Assault | Opposing | GA90 |
| Craig Patterson | Iowa Coalition Against Sexual Assault | Opposing | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Opposing | GA90 |
| Threase Harms | Iowa Environmental Council | Opposing | GA90 |
| Jeff Pitts | Iowa Faith and Freedom Coalition | Supporting | GA90 |
| Emily Piper | Iowa Mental Health Counselors Association | Opposing | GA90 |
| Amy Campbell | Iowa Nurse Practitioners Society | Opposing | GA90 |
| Craig Patterson | Iowa Nurse Practitioners Society | Opposing | GA90 |
| Amy Campbell | Iowa Nurses Association | Opposing | GA90 |
| Craig Patterson | Iowa Nurses Association | Opposing | GA90 |
| Amy Campbell | Iowa Primary Care Association | Opposing | GA90 |
| Craig Patterson | Iowa Primary Care Association | Opposing | GA90 |
| Amy Campbell | Iowa Psychological Association | Opposing | GA90 |
| Craig Patterson | Iowa Psychological Association | Opposing | GA90 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA90 |
| Morgan Miller | Iowa State Education Association | Opposing | GA90 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA90 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA90 |
| Amy Campbell | Lutheran Services in IA, Inc. | Opposing | GA90 |
| Craig Patterson | Lutheran Services in IA, Inc. | Opposing | GA90 |
| Mazie Stilwell | Planned Parenthood Advocates of Iowa | Opposing | GA90 |
| Harry Ehrlich | Protect My Innocence | Supporting | GA90 |
| Katherine Bogaards | Protect My Innocence | Supporting | GA90 |
| Rick Phillips | Protect My Innocence | Supporting | GA90 |
| Dave Daughton | Rural School Advocates of Iowa | Opposing | GA90 |
| Margaret Buckton | Rural School Advocates of Iowa | Opposing | GA90 |
| Dave Daughton | School Administrators of Iowa | Opposing | GA90 |
| Margaret Buckton | Urban Education Network of Iowa | Opposing | GA90 |
| John Strathman | VALOR Iowa | Supporting | GA90 |