| Marcus Branstad | American Chemistry Council | Opposing | GA91 |
| Matt Hinch | American Chemistry Council | Opposing | GA91 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Undecided | GA91 |
| Katie Rock | BlueGreen Alliance | Opposing | 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 |
| Darren Reaman | Custom Electronic Design and Installation Association (CEDIA) | Undecided | GA91 |
| Brad Epperly | Developers Council | Undecided | GA91 |
| Casey Nickel | Developers Council | Undecided | GA91 |
| Dustin Miller | Developers Council | Undecided | GA91 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA91 |
| Matt Ohloff | Environmental Law and Policy Center | Opposing | GA91 |
| Jake Highfill | Home Builders Association of Iowa | Supporting | GA91 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA91 |
| Tony Phillips | Home Builders Association of Iowa | Supporting | GA91 |
| Nick Laning | IBEW Iowa State Conference | Opposing | GA91 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA91 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA91 |
| Greta Haas | Iowa Association of Realtors | Undecided | GA91 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA91 |
| Kelsey Schott | Iowa Chapter, American Institute of Architects | Opposing | GA91 |
| Matt McKinney | Iowa Chapter, American Institute of Architects | Opposing | GA91 |
| RG Schwarm | Iowa Chapter, American Institute of Architects | Opposing | GA91 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Sarah Vanderploeg | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Dustin Miller | Iowa Real Estate Developers Association | Undecided | GA91 |
| Clair Lewis | Lennox International | Opposing | GA91 |
| Kate Walton | Lennox International | Opposing | GA91 |
| Matt Eide | Lennox International | Opposing | GA91 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA91 |
| Christopher Rants | NECA - Iowa (NEC) | Opposing | GA91 |
| Jake Friedrichsen | NECA - Iowa (NEC) | Undecided | GA91 |
| Jake Friedrichsen | NECA - Iowa (NEC) | Opposing | GA91 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA91 |
| Justin Hupfer | NECA - Iowa (NEC) | Opposing | GA91 |
| Kelsey Schott | Nationwide Mutual Ins. Co. | Undecided | GA91 |
| Matt McKinney | Nationwide Mutual Ins. Co. | Undecided | GA91 |
| RG Schwarm | Nationwide Mutual Ins. Co. | Undecided | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |