| Jake Highfill | American Petroleum Institute | Supporting | GA91 |
| Tony Phillips | American Petroleum Institute | Supporting | GA91 |
| Dustin Rush | Americans For Prosperity | Supporting | GA91 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA91 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA91 |
| Steven Lukan | Black Hills Energy | Supporting | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Gary Grant | City of Cedar Rapids | Undecided | GA91 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA91 |
| David Peck | FUELIowa (PMCI) | Supporting | GA91 |
| Marc Beltrame | FUELIowa (PMCI) | Supporting | 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 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | 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 |
| Susan Fenton | Iowa Dept. of Transportation | Undecided | GA91 |
| Noah Hackbart | Iowa Farmers Union | Undecided | GA91 |
| Threase Harms | Iowa Farmers Union | Undecided | 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 |
| 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 |
| Nathan Hohnstein | 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 |
| Chaz Allen | Iowa Utility Association | Supporting | GA91 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA91 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA91 |
| Onnalee Gettler | MidAmerican Energy Company | Supporting | GA91 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA91 |
| Tony Thompson | Personal Interest- Tony Thompson | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |
| Craig Schoenfeld | Valero Energy Corporation | Supporting | GA91 |
| Nick Boeyink | Valero Energy Corporation | Supporting | GA91 |