| Jeff Smith | Agribusiness Association of Iowa | Supporting | GA91 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Supporting | GA91 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Supporting | GA91 |
| Jake Highfill | American Petroleum Institute | Undecided | GA91 |
| Tony Phillips | American Petroleum Institute | Undecided | GA91 |
| Jennifer Breon | Food & Water Watch | Opposing | GA91 |
| Mike Heller | Iowa Academy of Trial Lawyers | Undecided | GA91 |
| Andrew Mertens | Iowa Association for Justice | Undecided | GA91 |
| Lisa Davis-Cook | Iowa Association for Justice | Undecided | GA91 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA91 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA91 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA91 |
| Dan Breitbarth | Iowa Attorney General Dept. of Justice | Supporting | GA91 |
| Jake Swanson | Iowa Cattlemen's Association | Supporting | GA91 |
| Kelli Wicks | Iowa Cattlemen's Association | Supporting | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Ian Latham | Iowa Corn Growers Association | Supporting | GA91 |
| Jeff Smith | 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 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA91 |
| Catherine Pollard | Iowa Environmental Council | Opposing | GA91 |
| Cody Smith | Iowa Environmental Council | Opposing | GA91 |
| Colleen Fowle | Iowa Environmental Council | Opposing | GA91 |
| Jordan Oster | Iowa Environmental Council | Opposing | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA91 |
| Michael Schmidt | Iowa Environmental Council | Opposing | GA91 |
| Sarah Green | Iowa Environmental Council | Opposing | GA91 |
| Threase Harms | Iowa Environmental Council | Opposing | GA91 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA91 |
| Matt Gronewald | Iowa Farm Bureau Federation | Supporting | GA91 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA91 |
| Megan Carlson | Iowa Institute for Cooperatives | Supporting | GA91 |
| Frederick Haskins | Iowa Insurance Associates | Supporting | GA91 |
| Harrison Furlow | Iowa Pork Producers Association | Supporting | GA91 |
| Jeff Smith | Iowa Pork Producers Association | Supporting | GA91 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Supporting | GA91 |
| Matt Fitzgerald | Iowa Pork Producers Association | Supporting | GA91 |
| Jacob Schrader | Iowa Propane Gas Association | Supporting | GA91 |
| Logan Murray | Iowa Propane Gas Association | Supporting | GA91 |
| Sydney Gangestad | Iowa Propane Gas Association | Supporting | GA91 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA91 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA91 |
| Jim Carney | Iowa State Bar Association | Undecided | GA91 |
| Eric Goranson | Iowa State Dairy Association | Supporting | GA91 |
| Jill Altringer | Iowa State Dairy Association | Supporting | GA91 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA91 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA91 |
| Clair Lewis | POET, LLC | Supporting | GA91 |
| Kate Walton | POET, LLC | Supporting | GA91 |
| Matt Eide | POET, LLC | Supporting | GA91 |
| John Strathman | VALOR Iowa | Supporting | GA91 |