| Kimberly Haus | Animal Rescue League of IA | Opposing | 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 |
| Steven Schoenebaum | Dow AgroSciences | Undecided | GA84 |
| Billi Hunt | Du Pont Businesses | Undecided | GA84 |
| Kimberly Haus | Humane Society | Opposing | GA84 |
| Brad Lint | IA. Assn. For Justice | Undecided | GA84 |
| Lisa Davis-Cook | IA. Assn. For Justice | Undecided | GA84 |
| Bruce Berven | IA. Cattlemen's Assn. | Supporting | GA84 |
| Tom Shipley | IA. Cattlemen's Assn. | Supporting | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Opposing | GA84 |
| Adam Mason | IA. Citizens for Community Improvement Action Fund | Undecided | GA84 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mindy Poldberg | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Joe Kelly | IA. County Attorneys Assn. | Undecided | GA84 |
| Susan Cameron Daemen | IA. County Attorneys Assn. | Undecided | GA84 |
| Jim Obradovich | IA. Environmental Council | Opposing | GA84 |
| Jen Schulte | IA. Farmers Union | Undecided | GA84 |
| Kent Hartwig | IA. Farmers Union | Undecided | GA84 |
| Kyle Frette | IA. Farmers Union | Undecided | GA84 |
| Threase Harms | IA. Farmers Union | Undecided | GA84 |
| Kimberly Haus | IA. Federation of Humane Societies | Opposing | 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 |
| Mike Heller | IA. Renewable Fuels Assn. (IRF) | Undecided | GA84 |
| Paula Feltner | IA. Renewable Fuels Assn. (IRF) | Undecided | GA84 |
| Jill Altringer | IA. Soybean Assn. | Supporting | GA84 |
| Jessica Bloomberg | IA. State Dairy Assn. | Supporting | GA84 |
| Adam Gregg | M2P2, LLC | Undecided | GA84 |
| Marc Beltrame | M2P2, LLC | Undecided | GA84 |
| Michael Blaser | M2P2, LLC | Undecided | GA84 |
| Brad Epperly | Monsanto Company | Supporting | GA84 |
| Brad Epperly | Monsanto Company | Undecided | GA84 |
| Keith Luchtel | Monsanto Company | Supporting | GA84 |
| Keith Luchtel | Monsanto Company | Undecided | GA84 |
| Scott Sundstrom | Monsanto Company | Supporting | GA84 |
| Scott Sundstrom | Monsanto Company | Undecided | GA84 |
| Adam Gregg | Smithfield Foods, Inc. | Undecided | GA84 |
| Marc Beltrame | Smithfield Foods, Inc. | Undecided | GA84 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA84 |
| Steven Schoenebaum | Syngenta Crop Protection | Undecided | GA84 |