| Daniel Zeno | American Civil Liberties Union of Iowa (ACLU-IA) | Undecided | GA87 |
| Rita Bettis Austen | American Civil Liberties Union of Iowa (ACLU-IA) | Undecided | GA87 |
| Mike Heller | Coalition for Family and Children's Services in Iowa | Undecided | GA87 |
| Paula Feltner | Coalition for Family and Children's Services in Iowa | Undecided | GA87 |
| Tim Coonan | Everytown for Gun Safety Action Fund | Withdrawn | GA87 |
| Tim Coonan | Everytown for Gun Safety Action Fund | Opposing | GA87 |
| Nicholas Dreeszen | Families United Action Network (FUAN) | Supporting | GA87 |
| Nicholas Dreeszen | Families United Action Network (FUAN) | Withdrawn | GA87 |
| Nicholas Dreeszen | Families United Action Network (FUAN) | Undecided | GA87 |
| ToyA Johnson | Families United Action Network (FUAN) | Supporting | GA87 |
| Kellie Paschke | Family Resources, Inc. | Undecided | GA87 |
| Troy Skinner | Family Resources, Inc. | Undecided | GA87 |
| Kellie Paschke | Four Oaks | Undecided | GA87 |
| Troy Skinner | Four Oaks | Undecided | GA87 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA87 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA87 |
| ToyA Johnson | Iowa Citizens For Justice | Supporting | GA87 |
| Karla Fultz McHenry | Iowa Independent Physician Group | Opposing | GA87 |
| David Boyd | Iowa Judicial Branch - Supreme Court | Undecided | GA87 |
| Molly Kottmeyer | Iowa Judicial Branch - Supreme Court | Undecided | GA87 |
| Sydney Kronkow | Iowa Judicial Branch - Supreme Court | Undecided | GA87 |
| Doug Struyk | Iowa State Bar Association | Opposing | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Opposing | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Shannon Henson | Iowa State Bar Association | Opposing | GA87 |
| Shannon Henson | Iowa State Bar Association | Undecided | GA87 |
| Karla Fultz McHenry | Medical Associates Clinic and Health Plan | Opposing | GA87 |
| Denise Rathman | National Association of Social Workers, Iowa Chapter | Undecided | GA87 |
| Tom Krueger | Network of Iowa Christian Home Educators (NICHE) | Undecided | GA87 |
| Jocelyn Fry | Personal Interest - Jocelyn Fry | Supporting | GA87 |
| Chuck Hurley | The Family Leader | Supporting | GA87 |
| Danny Carroll | The Family Leader | Supporting | GA87 |
| Josiah Oleson | The Family Leader | Supporting | GA87 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA87 |
| Tim Coonan | The Iowa Academy of Trust and Estate Counsel | Opposing | GA87 |
| Tim Coonan | The Iowa Academy of Trust and Estate Counsel | Undecided | GA87 |
| Karla Fultz McHenry | The Iowa Clinic, P.C. | Opposing | GA87 |