| Kate Walton | Air-Conditioning, Heating, and Refrigeration Institute (AHRI) | Supporting | GA90 |
| Madeleine Bradley | Air-Conditioning, Heating, and Refrigeration Institute (AHRI) | Supporting | GA90 |
| Matt Eide | Air-Conditioning, Heating, and Refrigeration Institute (AHRI) | Supporting | GA90 |
| David Adelman | American Chemistry Council | Undecided | GA90 |
| Frank Chiodo | American Chemistry Council | Undecided | GA90 |
| Lillie Brady | American Chemistry Council | Undecided | GA90 |
| Matt Hinch | American Chemistry Council | Undecided | GA90 |
| Sara Allen | American Chemistry Council | Undecided | GA90 |
| Tony Phillips | Black Hills Energy | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Jefferson Fink | Iowa Association of Building Officials | Undecided | GA90 |
| Jim Obradovich | Iowa Association of Building Officials | Undecided | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA90 |
| Kate Walton | Lennox International | Supporting | GA90 |
| Madeleine Bradley | Lennox International | Supporting | GA90 |
| Matt Eide | Lennox International | Supporting | GA90 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Undecided | GA90 |
| Eric Goranson | Plumbing Heating & Cooling Contractors of IA | Supporting | GA90 |