| Adam Gregg | Agribusiness Assn. of IA | Supporting | GA84 |
| Jerry Fitzgerald | Agribusiness Assn. of IA | Supporting | GA84 |
| Maggie Smith-Fitzgerald | Agribusiness Assn. of IA | Supporting | GA84 |
| Marc Beltrame | Agribusiness Assn. of IA | Supporting | GA84 |
| Mark Joyce | Agribusiness Assn. of IA | Supporting | GA84 |
| Brad Epperly | Deere & Company | Undecided | GA84 |
| Jason Francque | Deere & Company | Undecided | GA84 |
| Keith Luchtel | Deere & Company | Undecided | GA84 |
| Paula Dierenfeld | Deere & Company | Undecided | GA84 |
| Scott Sundstrom | Deere & Company | Undecided | GA84 |
| Linda Kinman | Des Moines Water Works | Undecided | GA84 |
| Mike Carberry | Green State Solutions | Opposing | GA84 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Don Brazelton | IA. Assn. of County Conservation Boards | Opposing | GA84 |
| Linda Kinman | IA. Assn. of Water Agencies | Undecided | GA84 |
| Bruce Berven | IA. Cattlemen's Assn. | Supporting | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Opposing | GA84 |
| Adam Mason | IA. Citizens for Community Improvement Action Fund | Opposing | GA84 |
| Erin Antonik | IA. Citizens for Community Improvement Action Fund | Opposing | GA84 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mindy Poldberg | IA. Corn Growers Assn.(ICG) | Supporting | GA84 |
| Mindy Poldberg | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Susan Fenton | IA. Dept. of Agriculture | Supporting | GA84 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Supporting | GA84 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Undecided | GA84 |
| Jim Obradovich | IA. Environmental Council | Opposing | GA84 |
| Eric Bradley | IA. Environmental Health Assn. | Opposing | GA84 |
| Don Petersen | IA. Farm Bureau Federation | Supporting | GA84 |
| Joe Johnson | IA. Farm Bureau Federation | Supporting | GA84 |
| Marty Schwager | IA. Farm Bureau Federation | Supporting | GA84 |
| Matthew Steinfeldt | IA. Farm Bureau Federation | Supporting | GA84 |
| Jen Schulte | IA. Farmers Union | Opposing | GA84 |
| Kent Hartwig | IA. Farmers Union | Opposing | GA84 |
| Kyle Frette | IA. Farmers Union | Opposing | GA84 |
| Threase Harms | IA. Farmers Union | Opposing | GA84 |
| John Benson | IA. Homeland Security & Emergency Management Div. | Undecided | GA84 |
| Alan Kemp | IA. League of Cities | Undecided | GA84 |
| Jessica Hyland | IA. League of Cities | Undecided | GA84 |
| Julie Smith | IA. League of Cities | Undecided | GA84 |
| Larry Pope | IA. League of Cities | Undecided | GA84 |
| Megan Peiffer | IA. League of Cities | Undecided | GA84 |
| Duane Sand | IA. Natural Heritage Foundation | Opposing | GA84 |
| Cody McKinley | IA. Pork Producers Assn. (IPP) | Supporting | GA84 |
| Jerry Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Mark Joyce | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Brenda Knollenberg | IA. Poultry Assn. | Supporting | GA84 |
| Jill Altringer | IA. Poultry Assn. | Supporting | GA84 |
| Kevin Vinchattle | IA. Poultry Assn. | Supporting | GA84 |
| Don Brazelton | IA. Rivers Revival | Opposing | GA84 |
| Emily Piper | IA. Rural Water Assn. | Undecided | GA84 |
| Jill Altringer | IA. Turkey Federation | Supporting | GA84 |
| Brad Epperly | IA. Water Well Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Water Well Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Water Well Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Water Well Assn. | Undecided | GA84 |
| Mark Langgin | IA. Water and Land Legacy | Opposing | GA84 |
| MIke Delaney | Izaak Walton League - Iowa Division | Opposing | GA84 |
| Brad Epperly | Monsanto Company | Undecided | GA84 |
| Keith Luchtel | Monsanto Company | Undecided | GA84 |
| Scott Sundstrom | Monsanto Company | Undecided | GA84 |
| Victor Elias | Personal Interest | Opposing | GA84 |
| MIke Delaney | Raccoon River Watershed Assn. | Opposing | GA84 |
| Emily Piper | Rathbun Regional Water Assn. | Undecided | GA84 |
| Susan Judkins | Rebuild IA Office | Undecided | GA84 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA84 |
| Jim Obradovich | United Professionals/UE | Opposing | GA84 |