| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Stacey Pellett | Deere & Company | Supporting | 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 |
| 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 |
| Lyle Brehm | Iowa County Engineers Association | Undecided | GA91 |
| Colin Tadlock | Iowa Department of Agriculture & Land Stewardship | Supporting | GA91 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Supporting | 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 | Supporting | GA91 |
| Threase Harms | Iowa Farmers Union | Supporting | GA91 |
| Megan Carlson | Iowa Institute for Cooperatives | Supporting | GA91 |
| David Adelman | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA91 |
| Frank Chiodo | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA91 |
| Matt Hinch | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA91 |
| Paige Thorson | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA91 |
| Sara Allen | Iowa Nebraska Farm Equipment Dealers Association | Supporting | GA91 |
| Colin Gorton | Iowa Renewable Fuels Association (IRF) | Supporting | 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 |
| Mike Heller | 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 |
| Nate Ristow | Iowa Taxpayers Association | Supporting | 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 |
| Dennis Tibben | POET, LLC | Supporting | GA91 |
| Kate Walton | POET, LLC | Supporting | GA91 |
| Matt Eide | POET, LLC | Supporting | GA91 |