| Adam Gregg | Agribusiness Assn. of IA | Undecided | GA83 |
| Jerry Fitzgerald | Agribusiness Assn. of IA | Undecided | GA83 |
| Maggie Smith-Fitzgerald | Agribusiness Assn. of IA | Undecided | GA83 |
| Marc Beltrame | Agribusiness Assn. of IA | Undecided | GA83 |
| Mark Joyce | Agribusiness Assn. of IA | Undecided | GA83 |
| Brian Johnson | Alliance Pipeline, Inc. | Undecided | GA83 |
| JoAnn Johnson | Alliance Pipeline, Inc. | Undecided | GA83 |
| Terry Harrmann | Alliant Energy Corporation | Undecided | GA83 |
| Jason Francque | Deere & Company | Undecided | GA83 |
| Linda Kinman | Des Moines Water Works | Undecided | GA83 |
| F. Thornton | Friends of IA. Land Owners and Sportsmen | Undecided | GA83 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA83 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| James West | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Linda Kinman | IA. Assn. of Water Agencies | Undecided | GA83 |
| Jim Obradovich | IA. Coon Hunters Assn. | Undecided | 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 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Supporting | GA83 |
| Don Petersen | IA. Farm Bureau Federation | Undecided | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Undecided | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Undecided | GA83 |
| Emily Piper | IA. Rural Water Assn. | Undecided | GA83 |
| Jim Obradovich | IA. Trappers Assn. | Undecided | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Undecided | GA83 |
| Brad Epperly | Monsanto Company | Undecided | GA83 |
| James West | Monsanto Company | Undecided | GA83 |
| Keith Luchtel | Monsanto Company | Undecided | GA83 |
| Scott Sundstrom | Monsanto Company | Undecided | GA83 |
| Brian Johnson | NextEra Energy | Undecided | GA83 |
| JoAnn Johnson | NextEra Energy | Undecided | GA83 |