| David Scott | American Council of Engineering Companies | Undecided | GA89 |
| Sydney Gangestad | City of West Des Moines | Opposing | GA89 |
| Tim Coonan | City of West Des Moines | Opposing | GA89 |
| Joseph Buffington | County Planning and Zoning Officials of Iowa | Opposing | GA89 |
| Joseph Buffington | County Planning and Zoning Officials of Iowa | Undecided | GA89 |
| Michael Triplett | Greater Iowa Apartment Association | Undecided | GA89 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Undecided | GA89 |
| Jake Highfill | Home Builders Association of Iowa | Supporting | GA89 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA89 |
| David Adelman | Hubbell Realty Company | Undecided | GA89 |
| Frank Chiodo | Hubbell Realty Company | Undecided | GA89 |
| Lillie Brady | Hubbell Realty Company | Undecided | GA89 |
| Matt Hinch | Hubbell Realty Company | Undecided | GA89 |
| Sara Allen | Hubbell Realty Company | Undecided | GA89 |
| Jim Obradovich | Iowa Association of Building Officials | Opposing | GA89 |
| Robert Mulqueen | Iowa Association of Building Officials | Opposing | GA89 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Steffi Lee | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Jennifer Kingland | Iowa Association of Realtors | Supporting | GA89 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA89 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA89 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA89 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA89 |
| David Scott | Iowa Engineering Society | Undecided | GA89 |
| Chelsea Hoye | Iowa Environmental Council | Undecided | GA89 |
| Emilee Harris-Puricelli | Iowa Environmental Council | Undecided | GA89 |
| Threase Harms | Iowa Environmental Council | Undecided | GA89 |
| Kristin Hanks-Bents | Iowa Finance Authority | Undecided | GA89 |
| Bob Rafferty | Iowa Housing Partnership | Undecided | GA89 |
| Nick Laning | Iowa Housing Partnership | Undecided | GA89 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA89 |
| Julie Smith | Master Builders of Iowa | Undecided | GA89 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA89 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA89 |
| David Adelman | Metropolitan Coalition | Undecided | GA89 |
| Frank Chiodo | Metropolitan Coalition | Undecided | GA89 |
| Lillie Brady | Metropolitan Coalition | Undecided | GA89 |
| Matt Hinch | Metropolitan Coalition | Undecided | GA89 |
| Sara Allen | Metropolitan Coalition | Undecided | GA89 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA89 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA89 |
| Dane Schumann | North Central States Regional Council of Carpenters | Undecided | GA89 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Undecided | GA89 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Undecided | GA89 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Undecided | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |