| Taylor Sklenar | Climate Land Leaders | Opposing | GA91 |
| Jefferson Fink | Coalition for Iowa Woodlands and Trees | Opposing | GA91 |
| Jim Obradovich | Coalition for Iowa Woodlands and Trees | Opposing | GA91 |
| Victoria Sinclair | Coalition for Iowa Woodlands and Trees | Opposing | GA91 |
| Eric Goranson | Iowa Bowhunters Association | Opposing | GA91 |
| Eric Goranson | Iowa Bowhunters Association | Undecided | GA91 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA91 |
| Tom Chapman | Iowa Catholic Conference | Undecided | GA91 |
| Jake Swanson | Iowa Cattlemen's Association | Undecided | GA91 |
| Kelli Wicks | Iowa Cattlemen's Association | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Jefferson Fink | Iowa Conservation Alliance | Opposing | GA91 |
| Jim Obradovich | Iowa Conservation Alliance | Opposing | GA91 |
| Victoria Sinclair | Iowa Conservation Alliance | Opposing | GA91 |
| Emily Callison | Iowa Corn Growers Association | Supporting | GA91 |
| Ian Latham | Iowa Corn Growers Association | Supporting | GA91 |
| Jeff Smith | Iowa Corn Growers Association | Supporting | GA91 |
| Kevin Studer | Iowa Corn Growers Association | Supporting | GA91 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association | Supporting | GA91 |
| Matt Fitzgerald | Iowa Corn Growers Association | Supporting | GA91 |
| Nathan Hohnstein | Iowa Corn Growers Association | Supporting | GA91 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Undecided | GA91 |
| Matt Gronewald | Iowa Farm Bureau Federation | Undecided | GA91 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Undecided | GA91 |
| Jefferson Fink | Iowa Nut Growers Association | Opposing | GA91 |
| Jim Obradovich | Iowa Nut Growers Association | Opposing | GA91 |
| Clara Wulfsen | Iowa Soybean Association | Supporting | GA91 |
| Doug Struyk | Iowa Soybean Association | Supporting | GA91 |
| Jennifer Dorman | Iowa Soybean Association | Supporting | GA91 |
| Jim Carney | Iowa Soybean Association | Supporting | GA91 |
| Katie Hall | Iowa Soybean Association | Supporting | GA91 |
| Matt Herman | Iowa Soybean Association | Supporting | GA91 |
| Megan Decker | Iowa Soybean Association | Supporting | GA91 |
| Phil Jeneary | Iowa Sportsmans Club | Undecided | GA91 |
| Brad Epperly | Iowa State Association of Assessors | Undecided | GA91 |
| Casey Nickel | Iowa State Association of Assessors | Undecided | GA91 |
| Dustin Miller | Iowa State Association of Assessors | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of County Supervisors | Supporting | GA91 |
| Jamie Cashman | Iowa State Association of County Supervisors | Supporting | GA91 |
| Lucas Beenken | Iowa State Association of County Supervisors | Supporting | GA91 |
| David Adelman | Iowa Wood Industry Association | Undecided | GA91 |
| Frank Chiodo | Iowa Wood Industry Association | Undecided | GA91 |
| Matt Hinch | Iowa Wood Industry Association | Undecided | GA91 |
| Paige Thorson | Iowa Wood Industry Association | Undecided | GA91 |
| Sara Allen | Iowa Wood Industry Association | Undecided | GA91 |
| Scott Newhard | Iowa Wood Industry Association | Undecided | GA91 |
| Jefferson Fink | Iowa Woodland Owners Association | Opposing | GA91 |
| Jim Obradovich | Iowa Woodland Owners Association | Opposing | GA91 |
| James Kersten | Kersten Walnut Farms, LLC | Undecided | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA91 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA91 |
| Jefferson Fink | New Mellerary Abbey / Mississippi Abbey | Opposing | GA91 |
| Jim Obradovich | New Mellerary Abbey / Mississippi Abbey | Opposing | GA91 |
| Doug Struyk | The Nature Conservancy | Undecided | GA91 |
| Emily Kavanagh | The Nature Conservancy | Undecided | GA91 |
| Jennifer Dorman | The Nature Conservancy | Undecided | GA91 |
| Jim Carney | The Nature Conservancy | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |