| MARK MAXWELL | ABATE of Iowa | Opposing | GA89 |
| Matt Caswell | Ag Processing Inc | Supporting | GA89 |
| Michael Triplett | Alliance For Automotive Innovation | Undecided | GA89 |
| Drew Klein | Americans For Prosperity | Opposing | GA89 |
| Tyler Raygor | Americans For Prosperity | Opposing | GA89 |
| Christopher Riley | Archer Daniels Midland Company | Supporting | GA89 |
| Scott Newhard | Associated General Contractors of Iowa | Undecided | GA89 |
| Brad Epperly | Bayer U.S. LLC | Supporting | GA89 |
| Dustin Miller | Bayer U.S. LLC | Supporting | GA89 |
| Carolann Jensen | Board of Regents, State of Iowa | Undecided | GA89 |
| Jennifer Harbison | Board of Regents, State of Iowa | Undecided | GA89 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA89 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA89 |
| Gary Kay | Cargill | Supporting | GA89 |
| Jon Murphy | Casey's General Stores | Opposing | GA89 |
| Tom Cope | Casey's General Stores | Opposing | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Kent Hartwig | Chevron Renewable Energy Group | Supporting | GA89 |
| Stacey Pellett | Deere & Company | Supporting | GA89 |
| Marc Beltrame | FUELIowa (PMCI) | Opposing | GA89 |
| Logan Shine | Governor's Office | Supporting | GA89 |
| Jennifer Kingland | Growth Energy | Supporting | GA89 |
| Mark Joyce | Hy-Vee, Inc. | Undecided | GA89 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA89 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA89 |
| Doug Struyk | Iowa Biodiesel Board | Supporting | GA89 |
| Jennifer Dorman | Iowa Biodiesel Board | Supporting | GA89 |
| Jim Carney | Iowa Biodiesel Board | Supporting | GA89 |
| David Adelman | Iowa Biotechnology Association | Supporting | GA89 |
| Frank Chiodo | Iowa Biotechnology Association | Supporting | GA89 |
| Jessica Hyland | Iowa Biotechnology Association | Supporting | GA89 |
| Matt Hinch | Iowa Biotechnology Association | Supporting | GA89 |
| Sara Allen | Iowa Biotechnology Association | Supporting | GA89 |
| James Kersten | Iowa Central Community College | Undecided | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA89 |
| Jeff Smith | Iowa Corn Growers Association | Supporting | GA89 |
| Jerry Fitzgerald | Iowa Corn Growers Association | Supporting | GA89 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association | Supporting | GA89 |
| Matt Fitzgerald | Iowa Corn Growers Association | Supporting | GA89 |
| Mindy Poldberg | Iowa Corn Growers Association | Supporting | GA89 |
| Colin Tadlock | Iowa Department of Agriculture & Land Stewardship | Supporting | GA89 |
| Susan Fenton | Iowa Dept. of Transportation | Supporting | GA89 |
| Don Petersen | Iowa Farm Bureau Federation | Supporting | GA89 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA89 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA89 |
| Hannah McDowell | Iowa Farmers Union | Supporting | GA89 |
| Threase Harms | Iowa Farmers Union | Supporting | GA89 |
| Bobby Martens | Iowa Institute for Cooperatives | Undecided | GA89 |
| Katie Hall | Iowa Institute for Cooperatives | Undecided | GA89 |
| Mike St. Clair | Iowa Institute for Cooperatives | Undecided | GA89 |
| MARK MAXWELL | Iowa Motorcycle Dealers Association | Opposing | GA89 |
| Will Rogers | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA89 |
| Dan Kleen | Iowa Off -Highway Vehicle Association | Opposing | GA89 |
| Sydney Gangestad | Iowa Propane Gas Association | Undecided | GA89 |
| Tim Coonan | Iowa Propane Gas Association | Undecided | GA89 |
| Amy Campbell | Iowa Public Transit Association (IPT) | Undecided | GA89 |
| Craig Patterson | Iowa Public Transit Association (IPT) | Undecided | GA89 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Supporting | GA89 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Supporting | GA89 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Supporting | GA89 |
| Doug Struyk | Iowa Soybean Association | Supporting | GA89 |
| Jennifer Dorman | Iowa Soybean Association | Supporting | GA89 |
| Jim Carney | Iowa Soybean Association | Supporting | GA89 |
| Michael Dolch | Iowa Soybean Association | Supporting | GA89 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA89 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA89 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA89 |
| William Peterson | Iowa State Association of Counties | Undecided | GA89 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA89 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA89 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA89 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA89 |
| Jake Ketzner | KWIK Trip, Inc. | Opposing | GA89 |
| Larry Blixt | KWIK Trip, Inc. | Opposing | GA89 |
| Jon Murphy | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA89 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA89 |
| Matt McKinney | Kum and Go, L.C. | Opposing | GA89 |
| RG Schwarm | Kum and Go, L.C. | Opposing | GA89 |
| Christopher Rants | Magellan Midstream Partners | Opposing | GA89 |
| John Cacciatore | Magellan Midstream Partners | Opposing | GA89 |
| Andy Conlin | POET, LLC | Supporting | GA89 |
| Kate Walton | POET, LLC | Supporting | GA89 |
| Matt Eide | POET, LLC | Supporting | GA89 |
| Michael Walz | POET, LLC | Supporting | GA89 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA89 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Rachel Geilenfeld | Sukup Manufacturing | Supporting | GA89 |
| Steven Schoenebaum | Syngenta Crop Protection | Supporting | GA89 |
| Bob Rafferty | Truckstops of Iowa | Opposing | GA89 |
| Nick Laning | Truckstops of Iowa | Opposing | GA89 |
| Rachel Ong | Truckstops of Iowa | Opposing | GA89 |
| Craig Schoenfeld | Valero Energy Corporation | Undecided | GA89 |