| MIke Delaney | Citizens For A Healthy Iowa | Supporting | GA85 |
| Jim Obradovich | Coalition for Iowa Woodlands and Trees | Supporting | GA85 |
| Neila Seaman | Iowa Chapter of Sierra Club | Supporting | GA85 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA85 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA85 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA85 |
| Courtney Willits | Iowa Emergency Management Association | Supporting | GA85 |
| Kent Hartwig | Iowa Emergency Management Association | Supporting | GA85 |
| Threase Harms | Iowa Emergency Management Association | Supporting | GA85 |
| Jim Obradovich | Iowa Environmental Council | Undecided | GA85 |
| Jim Obradovich | Iowa Environmental Council | Supporting | GA85 |
| Robert Mulqueen | Iowa Environmental Council | Supporting | GA85 |
| Dustin Miller | Iowa League of Cities | Supporting | GA85 |
| Jessica Hyland | Iowa League of Cities | Supporting | GA85 |
| Jim Obradovich | Iowa Society of Solid Waste Operations (ISOSWO) | Supporting | GA85 |
| Robert Mulqueen | Iowa Society of Solid Waste Operations (ISOSWO) | Supporting | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Undecided | GA85 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA85 |
| William Peterson | Iowa State Association of Counties | Undecided | GA85 |
| William Heckroth | Iowa State Association of County Supervisors | Undecided | GA85 |
| MIke Delaney | Izaak Walton League - Iowa Division | Supporting | GA85 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA85 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA85 |
| Jessica Hyland | Metro Waste Authority | Supporting | GA85 |
| Julie Smith | Metro Waste Authority | Supporting | GA85 |
| Reo Menning | Metro Waste Authority | Supporting | GA85 |
| MIke Delaney | Raccoon River Watershed Association | Supporting | GA85 |
| Mike Heller | Waste Management, Inc. | Undecided | GA85 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA85 |