| Melissa Speed | AFSCME Council 61 | Opposing | GA91 |
| 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 |
| Jackie Cale | American Cancer Society Cancer Action Network (ACS CAN) | Opposing | GA91 |
| Dustin Rush | Americans For Prosperity | Supporting | GA91 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA91 |
| Brad Epperly | Bayer U.S. LLC | Supporting | GA91 |
| Casey Nickel | Bayer U.S. LLC | Supporting | GA91 |
| Craig Mischo | Bayer U.S. LLC | Supporting | GA91 |
| Dustin Miller | Bayer U.S. LLC | Supporting | GA91 |
| Heather Ryan | Bitches Get Stuff Done | Opposing | GA91 |
| Heaven Chamberlain | Bitches Get Stuff Done | Opposing | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Cynthia Farmer | Center for Rural Affairs | Opposing | GA91 |
| Taylor Sklenar | Climate Land Leaders | Opposing | GA91 |
| Mark Joyce | Corteva Agriscience | Supporting | GA91 |
| Arthur Roche | Dubuque Area Land and Water Legacy | Opposing | GA91 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA91 |
| Matt Ohloff | Environmental Law and Policy Center | Opposing | GA91 |
| Jeanie Smith | Episcopal Diocese of Iowa | Opposing | GA91 |
| Paul Gennett | Episcopal Diocese of Iowa | Opposing | GA91 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Opposing | GA91 |
| Jennifer Breon | Food & Water Watch | Opposing | GA91 |
| Michaelyn Mankel | Food & Water Watch | Opposing | GA91 |
| Kirby Wagner | Growmark, Inc. | Supporting | GA91 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Supporting | GA91 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA91 |
| Casey Nickel | Helena Agri-Enterprises, LLC | Supporting | GA91 |
| Casey Nickel | Helena Agri-Enterprises, LLC | Undecided | GA91 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Supporting | GA91 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA91 |
| Mike Heller | Iowa Academy of Trial Lawyers | Opposing | GA91 |
| Andrew Mertens | Iowa Association for Justice | Opposing | GA91 |
| Kellie Paschke | Iowa Association for Justice | Opposing | GA91 |
| Kelly Meyers | Iowa Association for Justice | Opposing | GA91 |
| Lisa Davis-Cook | Iowa Association for Justice | Opposing | 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 |
| David Adelman | Iowa Biotechnology Association | Supporting | GA91 |
| Frank Chiodo | Iowa Biotechnology Association | Supporting | GA91 |
| Matt Hinch | Iowa Biotechnology Association | Supporting | GA91 |
| Paige Thorson | Iowa Biotechnology Association | Supporting | GA91 |
| Sara Allen | Iowa Biotechnology Association | Supporting | GA91 |
| Brad Epperly | Iowa Chamber Alliance | Supporting | GA91 |
| Casey Nickel | Iowa Chamber Alliance | Supporting | GA91 |
| Dustin Miller | Iowa Chamber Alliance | Supporting | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA91 |
| Katie Biechler | Iowa Citizens for Community Improvement Action Fund | Opposing | GA91 |
| Emily Callison | 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 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Supporting | GA91 |
| Cody Smith | Iowa Environmental Council | Opposing | GA91 |
| Colleen Fowle | Iowa Environmental Council | Opposing | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA91 |
| Michael Schmidt | Iowa Environmental Council | Opposing | GA91 |
| Noah Hackbart | Iowa Environmental Council | Opposing | GA91 |
| Sarah Green | Iowa Environmental Council | Opposing | GA91 |
| Threase Harms | Iowa Environmental Council | Opposing | GA91 |
| Irene DeMaris | Iowa Faith & Climate Network | 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 |
| Noah Hackbart | Iowa Farmers Union | Opposing | GA91 |
| Threase Harms | Iowa Farmers Union | Opposing | GA91 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA91 |
| Megan Carlson | Iowa Institute for Cooperatives | Supporting | GA91 |
| Frederick Haskins | Iowa Insurance Associates | Supporting | GA91 |
| Teresa Bomhoff | Iowa Integrated Health Planning and Advisory Council | Opposing | GA91 |
| Dave Tierney | 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 |
| Clara Wulfsen | Iowa State Bar Association | Opposing | GA91 |
| Doug Struyk | Iowa State Bar Association | Opposing | GA91 |
| Jennifer Dorman | Iowa State Bar Association | Opposing | GA91 |
| Jim Carney | Iowa State Bar Association | Opposing | GA91 |
| Dane Schumann | Izaak Walton League - Iowa Division | Opposing | GA91 |
| John Hall | Marshalltown Area Chamber of Commerce | Supporting | GA91 |
| Bill Dix | Modern Ag Alliance | Supporting | GA91 |
| Elizabeth Burns-Thompson | Modern Ag Alliance | Supporting | GA91 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA91 |
| Tony Thompson | Personal Interest- Tony Thompson | Opposing | GA91 |
| Ryan Sempf | Quad Cities Chamber of Commerce | Supporting | GA91 |
| Karl Schilling | United Professionals/UE | Opposing | GA91 |