| David Scott | American Water Works Association | Undecided | GA86 |
| MIke Delaney | Citizens For A Healthy Iowa | Undecided | GA86 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA86 |
| Jake Oeth | Des Moines Water Works | Opposing | GA86 |
| Kent Hartwig | Des Moines Water Works | Opposing | GA86 |
| Threase Harms | Des Moines Water Works | Opposing | GA86 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Rachel Geilenfeld | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Zach Dalluge | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Jessica Hyland | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Julie Smith | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Troy DeJoode | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA86 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA86 |
| George Appleby | Iowa Drainage District Association | Undecided | GA86 |
| Jennifer Tyler | Iowa Drainage District Association | Undecided | GA86 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA86 |
| Jim Obradovich | Iowa Environmental Council | Undecided | GA86 |
| Dustin Miller | Iowa League of Cities | Supporting | GA86 |
| Robert Palmer | Iowa League of Cities | Supporting | GA86 |
| Emily Piper | Iowa Rural Water Association | Supporting | GA86 |
| MIke Delaney | Izaak Walton League - Iowa Division | Undecided | GA86 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Undecided | GA86 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA86 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA86 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| MIke Delaney | Raccoon River Watershed Association | Undecided | GA86 |
| Jim Obradovich | Utility Management Organizations of Iowa | Undecided | GA86 |