| John Pederson | Artistic Waste Services | Opposing | GA83 |
| Matt Eide | Artistic Waste Services | Opposing | GA83 |
| Ted Stopulos | Artistic Waste Services | Opposing | GA83 |
| Andrew Baumert | Board of Regents, State of IA | Undecided | GA83 |
| David Miles | Board of Regents, State of IA | Undecided | GA83 |
| Joe Murphy | Board of Regents, State of IA | Undecided | GA83 |
| Keith Saunders | Board of Regents, State of IA | Undecided | GA83 |
| Robert Donley | Board of Regents, State of IA | Undecided | GA83 |
| Linda Kinman | Des Moines Water Works | Undecided | GA83 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA83 |
| Craig Schoenfeld | Hy-Vee, Inc. | Undecided | GA83 |
| Linda Kinman | IA. Assn. of Water Agencies | Undecided | GA83 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Opposing | GA83 |
| Jen Schulte | IA. Farmers Union | Supporting | GA83 |
| Kent Hartwig | IA. Farmers Union | Supporting | GA83 |
| Kyle Frette | IA. Farmers Union | Supporting | GA83 |
| Threase Harms | IA. Farmers Union | Supporting | GA83 |
| Alan Kemp | IA. League of Cities | Undecided | GA83 |
| Jessica Hyland | IA. League of Cities | Undecided | GA83 |
| Julie Smith | IA. League of Cities | Undecided | GA83 |
| Larry Pope | IA. League of Cities | Undecided | GA83 |
| Megan Peiffer | IA. League of Cities | Undecided | GA83 |
| Jim Obradovich | IA. Recycling Assn. | Undecided | GA83 |
| Jim Obradovich | IA. Society of Solid Waste Operations (ISOSWO) | Undecided | GA83 |
| Hanna DeGroot | IA. State Assn. of Counties | Undecided | GA83 |
| Linda Hinton | IA. State Assn. of Counties | Undecided | GA83 |
| MaryBeth Mellick | 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 |
| Roy Overton | Izaak Walton League - Iowa Division | Opposing | GA83 |
| Gary Grant | Linn County Board of Supervisors | Opposing | GA83 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA83 |
| Larry Murphy | Linn County Board of Supervisors | Opposing | GA83 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA83 |
| Frank Chiodo | Metro Waste Authority | Undecided | GA83 |
| Julie Smith | Metro Waste Authority | Undecided | GA83 |
| Larry Pope | Metro Waste Authority | Undecided | GA83 |
| Ned Chiodo | Metro Waste Authority | Undecided | GA83 |
| David Adelman | Metropolitan Coalition | Undecided | GA83 |