| MIke Delaney | Citizens For A Healthy Iowa | Supporting | GA86 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA86 |
| Jake Oeth | Des Moines Water Works | Supporting | GA86 |
| Kent Hartwig | Des Moines Water Works | Supporting | GA86 |
| Threase Harms | Des Moines Water Works | Supporting | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA86 |
| Dustin Noble | Iowa Cattlemen's Association | Undecided | GA86 |
| Justine Stevenson | Iowa Cattlemen's Association | Undecided | GA86 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA86 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA86 |
| Neila Seaman | Iowa Chapter of Sierra Club | Supporting | GA86 |
| Jim Obradovich | Iowa Environmental Council | Undecided | GA86 |
| Robert Mulqueen | Iowa Environmental Council | Undecided | GA86 |
| Jake Oeth | Iowa Farmers Union | Supporting | GA86 |
| Kent Hartwig | Iowa Farmers Union | Supporting | GA86 |
| Threase Harms | Iowa Farmers Union | Supporting | 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 |
| Cody McKinley | Iowa Pork Producers Association (IPP) | 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 |
| Jake Oeth | Iowa Rivers Revival | Supporting | GA86 |
| Kent Hartwig | Iowa Rivers Revival | Supporting | GA86 |
| Threase Harms | Iowa Rivers Revival | Supporting | GA86 |
| Jill Altringer | Iowa Soybean Association | Undecided | GA86 |
| MIke Delaney | Izaak Walton League - Iowa Division | Supporting | GA86 |
| MIke Delaney | Raccoon River Watershed Association | Supporting | GA86 |
| Emily Piper | Rathbun Regional Water 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 |