| Susan Walter | Black Hills Energy | 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 |
| Lyle Krewson | IA. Chapter of Sierra Club | Undecided | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Supporting | GA83 |
| Jim Obradovich | IA. Environmental Council | Supporting | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Opposing | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Undecided | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Opposing | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Undecided | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Opposing | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Undecided | GA83 |
| Alan Kemp | IA. League of Cities | Undecided | GA83 |
| Alan Kemp | IA. League of Cities | Opposing | GA83 |
| Jessica Hyland | IA. League of Cities | Undecided | GA83 |
| Jessica Hyland | IA. League of Cities | Opposing | GA83 |
| Julie Smith | IA. League of Cities | Undecided | GA83 |
| Larry Pope | IA. League of Cities | Opposing | GA83 |
| Megan Peiffer | IA. League of Cities | Undecided | GA83 |
| Megan Peiffer | IA. League of Cities | Opposing | GA83 |
| Betty Lord-Dinan | IA. Nurses Assn. | Supporting | GA83 |
| Linda Goeldner | IA. Nurses Assn. | Supporting | GA83 |
| Jim Obradovich | IA. Recycling Assn. | Supporting | GA83 |
| Betty Lord-Dinan | IA. School Nurses Organization | Supporting | GA83 |
| Linda Goeldner | IA. School Nurses Organization | Supporting | GA83 |
| Jim Obradovich | IA. Society of Solid Waste Operations (ISOSWO) | Supporting | GA83 |
| Laverne Schroeder | IA. Sportsman Members | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA83 |
| Nathan Bonnett | IA. State Assn. of Counties | Undecided | GA83 |
| William Peterson | IA. State Assn. of Counties | Undecided | GA83 |
| Michael Wentzien | IA. State Assn. of County Supervisors | Undecided | GA83 |
| Roy Overton | Izaak Walton League - Iowa Division | Supporting | GA83 |
| Julie Smith | Metro Waste Authority | Supporting | GA83 |
| Larry Pope | Metro Waste Authority | Supporting | GA83 |
| Ned Chiodo | Metro Waste Authority | Supporting | GA83 |
| Mike Heller | Waste Management, Inc. | Supporting | GA83 |
| Paula Feltner | Waste Management, Inc. | Supporting | GA83 |