| Terry Harrmann | Alliant Energy Corporation | Undecided | GA84 |
| Bill Wimmer | Home Builders Assn. of IA | Undecided | GA84 |
| Craig Schoenfeld | Home Builders Assn. of IA | Undecided | GA84 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Michael Ralston | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Undecided | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Supporting | GA84 |
| Jerry Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mark Joyce | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Mindy Poldberg | IA. Corn Growers Assn.(ICG) | Undecided | GA84 |
| Sharon Tahtinen | IA. Dept. of Natural Resources | Undecided | GA84 |
| Jim Obradovich | IA. Environmental Council | Opposing | GA84 |
| Jerry Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Mark Joyce | IA. Pork Producers Assn. (IPP) | Undecided | GA84 |
| Jim Obradovich | IA. Recycling Assn. | Opposing | GA84 |
| Jim Obradovich | IA. Society of Solid Waste Operations (ISOSWO) | Opposing | GA84 |
| Robert Mulqueen | IA. Society of Solid Waste Operations (ISOSWO) | Opposing | GA84 |
| Chad Kleppe | Master Builders of IA | Undecided | GA84 |
| Frank Chiodo | Metro Waste Authority | Opposing | GA84 |
| Julie Smith | Metro Waste Authority | Opposing | GA84 |
| Larry Pope | Metro Waste Authority | Opposing | GA84 |
| Ned Chiodo | Metro Waste Authority | Opposing | GA84 |
| Reo Menning | Metro Waste Authority | Opposing | GA84 |
| John Pederson | Phoenix Recycling | Supporting | GA84 |
| Matt Eide | Phoenix Recycling | Supporting | GA84 |
| Jim Obradovich | Redemption Centers of IA | Undecided | GA84 |
| Sandra Simmons | Sierra Club of Iowa Chapter | Supporting | GA84 |
| Mike Heller | Waste Management, Inc. | Undecided | GA84 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA84 |