| Mona Bond | Agribusiness Assn. of IA | Undecided | GA83 |
| Jim Obradovich | Conservation Districts of IA | Supporting | GA83 |
| Brad Epperly | Deere & Company | Undecided | GA83 |
| James West | Deere & Company | Undecided | GA83 |
| Keith Luchtel | Deere & Company | Undecided | GA83 |
| Paula Dierenfeld | Deere & Company | Undecided | GA83 |
| Scott Sundstrom | Deere & Company | Undecided | GA83 |
| Thomas Iles | Deere & Company | Undecided | GA83 |
| Marc Beltrame | Ducks Unlimited, Inc. | Supporting | GA83 |
| Don Brazelton | IA. Assn. of County Conservation Boards | Supporting | GA83 |
| Don Brazelton | IA. Bowhunters Assn. | Supporting | GA83 |
| Lyle Krewson | IA. Chapter of Sierra Club | Supporting | GA83 |
| NaomiSeaYoung Wittstruck | IA. Conference of United Methodist Church | Opposing | GA83 |
| Brice Oakley | IA. Conservation Alliance | Supporting | GA83 |
| Don Avenson | IA. Conservation Alliance | Supporting | GA83 |
| Tom Cope | IA. Conservation Alliance | Supporting | GA83 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA83 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA83 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Undecided | GA83 |
| Susan Fenton | IA. Dept. of Agriculture | Supporting | GA83 |
| Diane Ford | IA. Dept. of Natural Resources | Supporting | GA83 |
| Elizabeth Baird | IA. Dept. of Transportation | Supporting | GA83 |
| Jim Obradovich | IA. Environmental Council | Supporting | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Undecided | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Undecided | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Undecided | GA83 |
| Brad Epperly | IA. Grocery Industry Assn. | Undecided | GA83 |
| James West | IA. Grocery Industry Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Grocery Industry Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Undecided | GA83 |
| Alan Kemp | IA. League of Cities | Supporting | GA83 |
| Jessica Hyland | IA. League of Cities | Supporting | GA83 |
| Julie Smith | IA. League of Cities | Supporting | GA83 |
| Larry Pope | IA. League of Cities | Supporting | GA83 |
| Megan Peiffer | IA. League of Cities | Supporting | GA83 |
| Will Rogers | IA. Nebraska Farm Equipment Dealers Assn. | 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 |
| Emily Piper | IA. Rural Water Assn. | Undecided | GA83 |
| Brad Epperly | IA. Society of Certified Public Accountants | Undecided | GA83 |
| James West | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Keith Luchtel | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Paula Dierenfeld | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Scott Sundstrom | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Scott Pope | IA. Sportsman Federation | Supporting | GA83 |
| Laverne Schroeder | IA. Sportsman Members | Supporting | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Supporting | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Supporting | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Supporting | GA83 |
| William Peterson | IA. State Assn. of Counties | Supporting | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Supporting | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Undecided | GA83 |
| John Pederson | Missouri River Energy Services | Undecided | GA83 |
| Matt Eide | Missouri River Energy Services | Undecided | GA83 |
| Dr. Norman | School Administrators of IA | Undecided | GA83 |
| Brice Oakley | The Nature Conservancy | Supporting | GA83 |
| Don Avenson | The Nature Conservancy | Supporting | GA83 |
| Tom Cope | The Nature Conservancy | Supporting | GA83 |
| Amy Campbell | Travel Federation of IA | Undecided | GA83 |
| Craig Patterson | Travel Federation of IA | Undecided | GA83 |
| Stephen Roberts | YMCA State Alliance | Supporting | GA83 |