| Rachel Geilenfeld | ADM | Supporting | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Stacey Pellett | Deere & Company | Supporting | GA91 |
| Tyler Ackerson | Department of Revenue | Undecided | GA91 |
| David Peck | FUELIowa (PMCI) | Undecided | GA91 |
| Marc Beltrame | FUELIowa (PMCI) | Undecided | GA91 |
| Dallas Gerber | Growth Energy | Supporting | GA91 |
| Emily Piper | Iowa Biotechnology Association | Supporting | GA91 |
| Jessica Hyland | Iowa Biotechnology Association | Supporting | GA91 |
| Logan Shine | Iowa Biotechnology Association | Supporting | GA91 |
| Nick Boeyink | Iowa Conservative Energy Forum | Undecided | 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 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Supporting | GA91 |
| Susan Fenton | Iowa Dept. of Transportation | Undecided | 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 |
| Catherine Pollard | Iowa Farmers Union | Undecided | GA91 |
| Threase Harms | Iowa Farmers Union | Undecided | GA91 |
| Megan Carlson | Iowa Institute for Cooperatives | Supporting | GA91 |
| Mike St. Clair | Iowa Institute for Cooperatives | Supporting | GA91 |
| Colin Gorton | Iowa Renewable Fuels Association (IRF) | Supporting | GA91 |
| Colin Gorton | Iowa Renewable Fuels Association (IRF) | Undecided | GA91 |
| David Adelman | Iowa Renewable Fuels Association (IRF) | Supporting | GA91 |
| Frank Chiodo | Iowa Renewable Fuels Association (IRF) | Supporting | GA91 |
| Matt Hinch | Iowa Renewable Fuels Association (IRF) | Supporting | GA91 |
| Paige Thorson | Iowa Renewable Fuels Association (IRF) | Supporting | GA91 |
| Sara Allen | Iowa Renewable Fuels Association (IRF) | Supporting | GA91 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA91 |
| Casey Nickel | Iowa Society of Certified Public Accountants | Undecided | GA91 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA91 |
| Jake Ketzner | KWIK Trip, Inc. | Undecided | GA91 |
| Larry Blixt | KWIK Trip, Inc. | Undecided | GA91 |
| Andy Conlin | POET, LLC | Supporting | GA91 |
| Clair Lewis | POET, LLC | Supporting | GA91 |
| Clair Lewis | POET, LLC | Undecided | GA91 |
| Dennis Tibben | POET, LLC | Supporting | GA91 |
| Kate Walton | POET, LLC | Supporting | GA91 |
| Kate Walton | POET, LLC | Undecided | GA91 |
| Matt Eide | POET, LLC | Supporting | GA91 |
| Matt Eide | POET, LLC | Undecided | GA91 |
| Craig Schoenfeld | Valero Energy Corporation | Undecided | GA91 |
| Nick Boeyink | Valero Energy Corporation | Undecided | GA91 |