| Larry Murphy | Agribusiness Assn. of IA | Undecided | GA83 |
| Marc Beltrame | Agribusiness Assn. of IA | Opposing | GA83 |
| Mona Bond | Agribusiness Assn. of IA | Undecided | GA83 |
| Steven Schoenebaum | Agribusiness Assn. of IA | Opposing | GA83 |
| Andrew Baumert | Board of Regents, State of IA | Undecided | GA83 |
| David Miles | Board of Regents, State of IA | Undecided | GA83 |
| Joe Murphy | Board of Regents, State of IA | Undecided | GA83 |
| Keith Saunders | Board of Regents, State of IA | Undecided | GA83 |
| Robert Donley | Board of Regents, State of IA | Undecided | GA83 |
| Robert Hartwig | IA. Bankers Assn. | Undecided | GA83 |
| Jill Altringer | IA. Cattlemen's Assn. | Opposing | GA83 |
| Tom Shipley | IA. Cattlemen's Assn. | Opposing | GA83 |
| Lyle Krewson | IA. Chapter of Sierra Club | Supporting | GA83 |
| Matt Ohloff | IA. Citizens for Community Improvement | Supporting | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Undecided | GA83 |
| Jim Obradovich | IA. Environmental Council | Supporting | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Opposing | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Opposing | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Opposing | GA83 |
| Drue Sander | IA. Institute for Cooperatives | Undecided | GA83 |
| Jerry Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA83 |
| Maggie Smith-Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA83 |
| Mark Joyce | IA. Pork Producers Assn. (IPP) | Undecided | GA83 |
| Jill Altringer | IA. Poultry Assn. | Opposing | GA83 |
| Kevin Vinchattle | IA. Poultry Assn. | Opposing | GA83 |
| Emily Piper | IA. Rural Water Assn. | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Undecided | GA83 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA83 |
| Michael Wentzien | IA. State Assn. of County Supervisors | Undecided | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Supporting | GA83 |
| Marc Beltrame | M2P2, LLC | Opposing | GA83 |
| Michael Blaser | M2P2, LLC | Opposing | GA83 |
| Marc Beltrame | Smithfield Foods, Inc. | Opposing | GA83 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Opposing | GA83 |
| Amy Campbell | Travel Federation of IA | Undecided | GA83 |
| Craig Patterson | Travel Federation of IA | Undecided | GA83 |