| Terry Harrmann | Alliant Energy Corporation | Supporting | GA83 |
| F. Thornton | Central IA Power Cooperative (CIPCO) | Supporting | GA83 |
| Stephen Roberts | Central IA Power Cooperative (CIPCO) | Supporting | GA83 |
| Brad Epperly | Deere & Company | Supporting | GA83 |
| James West | Deere & Company | Supporting | GA83 |
| Keith Luchtel | Deere & Company | Supporting | GA83 |
| Paula Dierenfeld | Deere & Company | Supporting | GA83 |
| Scott Sundstrom | Deere & Company | Supporting | GA83 |
| Thomas Iles | Deere & Company | Supporting | GA83 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA83 |
| James West | Greater Des Moines Partnership | Undecided | GA83 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA83 |
| Keith Luchtel | Greater Des Moines Partnership | Undecided | GA83 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA83 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA83 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Supporting | GA83 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Supporting | GA83 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Supporting | 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 |
| Brad Epperly | IA. Chamber Alliance | Undecided | GA83 |
| James West | IA. Chamber Alliance | Undecided | GA83 |
| Keith Luchtel | IA. Chamber Alliance | Undecided | GA83 |
| Paula Dierenfeld | IA. Chamber Alliance | Undecided | GA83 |
| Scott Sundstrom | IA. Chamber Alliance | Undecided | GA83 |
| Jim Obradovich | IA. Environmental Council | Undecided | 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 |
| Laverne Schroeder | IA. Nebraska Farm Equipment Dealers Assn. | Undecided | GA83 |
| Jim Obradovich | IA. Wind Energy Assn. | Supporting | GA83 |
| Brad Epperly | Monsanto Company | Undecided | GA83 |
| James West | Monsanto Company | Undecided | GA83 |
| Keith Luchtel | Monsanto Company | Undecided | GA83 |
| Paula Dierenfeld | Monsanto Company | Undecided | GA83 |
| Scott Sundstrom | Monsanto Company | Undecided | GA83 |
| Amy Campbell | Professional Developers of IA (PDI) | Supporting | GA83 |
| Craig Patterson | Professional Developers of IA (PDI) | Supporting | GA83 |
| Marc Beltrame | Titan Wind, LLC. | Supporting | GA83 |