| 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 |
| Drew Klein | Americans For Prosperity | Supporting | GA89 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA89 |
| Kate Walton | Area Education Agencies of Iowa | Opposing | GA89 |
| Matt Eide | Area Education Agencies of Iowa | Opposing | GA89 |
| Tom Lane | Area Education Agencies of Iowa | Opposing | GA89 |
| MaryNelle Trefz | Common Good Iowa | Opposing | GA89 |
| Mike Owen | Common Good Iowa | Opposing | GA89 |
| Sheila Hansen | Common Good Iowa | Opposing | GA89 |
| Christopher Rants | Des Moines Public Schools | Opposing | GA89 |
| John Cacciatore | Des Moines Public Schools | Opposing | GA89 |
| Jake Highfill | EdChoice | Supporting | GA89 |
| Logan Shine | Governor's Office | Supporting | GA89 |
| Bill Gustoff | Homeschool Iowa | Undecided | GA89 |
| Joe Bailey | Homeschool Iowa | Undecided | GA89 |
| Teresa Bomhoff | IA Mental Health Planning Council | Opposing | GA89 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA89 |
| Emily Piper | Iowa Association of School Boards | Opposing | GA89 |
| Phil Jeneary | Iowa Association of School Boards | Opposing | GA89 |
| Brad Epperly | Iowa Broadcasters Association | Undecided | GA89 |
| Dustin Miller | Iowa Broadcasters Association | Undecided | GA89 |
| Brian Carter | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Gary Nims | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Rita Carter | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Roberta Paige | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA89 |
| Frederick Haskins | Iowa Insurance Associates | Undecided | GA89 |
| Frederick Haskins | Iowa Insurance Associates | Opposing | GA89 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA89 |
| Dustin Miller | Iowa Newspaper Association | Undecided | GA89 |
| Jim Obradovich | Iowa School Counselors Association | Opposing | GA89 |
| Robert Mulqueen | Iowa School Counselors Association | Opposing | GA89 |
| Jim Obradovich | Iowa School Nurses Organization | Opposing | GA89 |
| Robert Mulqueen | Iowa School Nurses Organization | Opposing | GA89 |
| Kellie Paschke | Iowa State Education Association | Opposing | GA89 |
| Kelly Meyers | Iowa State Education Association | Opposing | GA89 |
| Logan Murray | Iowa State Education Association | Opposing | GA89 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA89 |
| Morgan Miller | Iowa State Education Association | Opposing | GA89 |
| Troy Skinner | Iowa State Education Association | Opposing | GA89 |
| David Adelman | Iowans For School Choice | Undecided | GA89 |
| Frank Chiodo | Iowans For School Choice | Undecided | GA89 |
| Matt Hinch | Iowans For School Choice | Undecided | GA89 |
| Sara Allen | Iowans For School Choice | Undecided | GA89 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA89 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA89 |
| Susan Cameron Daemen | Reaching Higher Iowa | Supporting | GA89 |
| Tony Phillips | Reaching Higher Iowa | Supporting | GA89 |
| Charlotte Eby | Ruan, Inc. | Supporting | GA89 |
| Jeffrey Boeyink | Ruan, Inc. | Supporting | GA89 |
| Dave Daughton | Rural School Advocates of Iowa | Opposing | GA89 |
| Margaret Buckton | Rural School Advocates of Iowa | Opposing | GA89 |
| David Wilkerson | School Administrators of Iowa | Opposing | GA89 |
| Margaret Buckton | Urban Education Network of Iowa | Opposing | GA89 |