| Bruce Rastetter | Board of Regents, State of Iowa | Undecided | GA86 |
| Joe Murphy | Board of Regents, State of Iowa | Undecided | GA86 |
| Katie Mulholland | Board of Regents, State of Iowa | Undecided | GA86 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA86 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA86 |
| Robert Donley | Board of Regents, State of Iowa | Undecided | GA86 |
| MIke Delaney | Citizens For A Healthy Iowa | Supporting | GA86 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA86 |
| Dane Schumann | Des Moines Water Works | Supporting | GA86 |
| Emily Hockins | Des Moines Water Works | Supporting | GA86 |
| Threase Harms | Des Moines Water Works | Supporting | GA86 |
| Josh Mandelbaum | Environmental Law and Policy Center | Supporting | GA86 |
| Steve Falck | Environmental Law and Policy Center | Supporting | GA86 |
| Jim Obradovich | Hungry Canyons Alliance | Undecided | GA86 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Myron Linn | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA86 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Supporting | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA86 |
| Neila Seaman | Iowa Chapter of Sierra Club | Supporting | GA86 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA86 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | 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 |
| John Benson | Iowa Homeland Security & Emergency Management Div. | Undecided | GA86 |
| Dustin Miller | Iowa League of Cities | Undecided | GA86 |
| Robert Palmer | Iowa League of Cities | Undecided | GA86 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA86 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | GA86 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Matt Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Tyler Bettin | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Dane Schumann | Iowa Rivers Revival | Supporting | GA86 |
| Emily Hockins | Iowa Rivers Revival | Supporting | GA86 |
| Threase Harms | Iowa Rivers Revival | Supporting | GA86 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA86 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA86 |
| MIke Delaney | Izaak Walton League - Iowa Division | Supporting | GA86 |
| Brad Epperly | Lewis and Clark Regional Water System | Undecided | GA86 |
| Paula Dierenfeld | Lewis and Clark Regional Water System | Undecided | GA86 |
| Scott Sundstrom | Lewis and Clark Regional Water System | Undecided | GA86 |
| MIke Delaney | Raccoon River Watershed Association | Supporting | GA86 |
| Doug Struyk | The Nature Conservancy | Undecided | GA86 |
| George Appleby | The Nature Conservancy | Undecided | GA86 |
| Jennifer Tyler | The Nature Conservancy | Undecided | GA86 |
| Jim Carney | The Nature Conservancy | Undecided | GA86 |