| 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 |
| Kathleen Schatzmann | Animal Legal Defense Fund | Opposing | GA89 |
| Colin Grace | Animal Rescue League Iowa, Inc. | Undecided | GA89 |
| Jake Ketzner | Association of Iowa Fairs | Supporting | GA89 |
| Larry Blixt | Association of Iowa Fairs | Supporting | GA89 |
| Mark Joyce | Corteva Agriscience | Supporting | GA89 |
| Robert Haus | Corteva Agriscience | Supporting | GA89 |
| Emma Schmit | Food & Water Watch | Opposing | GA89 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Adam Mason | Iowa Citizens for Community Improvement Action Fund | Opposing | GA89 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA89 |
| Tammie Krausman | Iowa Dept. of Natural Resources | Undecided | GA89 |
| Sarah Jennings | Iowa Dept. of Public Safety | Undecided | GA89 |
| Angela Davis | Iowa Environmental Council | Undecided | GA89 |
| Hannah McDowell | Iowa Farmers Union | Undecided | GA89 |
| Nick Laning | Iowa Farmers Union | Undecided | GA89 |
| Threase Harms | Iowa Farmers Union | Undecided | GA89 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA89 |
| Jim Obradovich | Iowa Honey Producers Association | Supporting | GA89 |
| Robert Mulqueen | Iowa Honey Producers Association | Supporting | GA89 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA89 |
| Kelly Meyers | Iowa Peace Officers Association | Undecided | GA89 |
| Logan Murray | Iowa Peace Officers Association | Undecided | GA89 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA89 |
| Drew Mogler | Iowa Pork Producers Association | Supporting | GA89 |
| Jeff Smith | Iowa Pork Producers Association | Supporting | GA89 |
| Jerry Fitzgerald | Iowa Pork Producers Association | Supporting | GA89 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Supporting | GA89 |
| Matt Fitzgerald | Iowa Pork Producers Association | Supporting | GA89 |
| Jill Altringer | Iowa Poultry Association | Supporting | GA89 |
| Jill Altringer | Iowa State Dairy Association | Supporting | GA89 |
| Jill Altringer | Iowa Turkey Federation | Supporting | GA89 |
| Preston Moore | The Humane Society of the United States | Undecided | GA89 |
| Preston Moore | The Humane Society of the United States | Opposing | GA89 |