| Amy Campbell | AARP Iowa | Undecided | GA90 |
| Craig Patterson | AARP Iowa | Undecided | GA90 |
| Paige Yontz | AARP Iowa | Undecided | GA90 |
| Kate Walton | Air-Conditioning, Heating, and Refrigeration Institute (AHRI) | Undecided | GA90 |
| Madeleine Bradley | Air-Conditioning, Heating, and Refrigeration Institute (AHRI) | Undecided | GA90 |
| Matt Eide | Air-Conditioning, Heating, and Refrigeration Institute (AHRI) | Undecided | GA90 |
| Jon Murphy | American Planning Association Iowa Chapter | Opposing | GA90 |
| Steven Van Steenhuyse | American Planning Association Iowa Chapter | Opposing | GA90 |
| Tom Cope | American Planning Association Iowa Chapter | Opposing | GA90 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Undecided | GA90 |
| Nick Laning | BLD Connection Iowa | Undecided | GA90 |
| Threase Harms | BLD Connection Iowa | Undecided | GA90 |
| Threase Harms | BLD Connection Iowa | Supporting | GA90 |
| Kate Walton | City of Bettendorf | Undecided | GA90 |
| Madeleine Bradley | City of Bettendorf | Undecided | GA90 |
| Matt Eide | City of Bettendorf | Undecided | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Doug Struyk | City of Des Moines | Undecided | GA90 |
| Emilee Harris-Puricelli | City of Des Moines | Undecided | GA90 |
| Jen Schulte | City of Des Moines | Undecided | GA90 |
| Jennifer Dorman | City of Des Moines | Undecided | GA90 |
| Jim Carney | City of Des Moines | Undecided | GA90 |
| Doug Struyk | City of Waukee | Undecided | GA90 |
| Jennifer Dorman | City of Waukee | Undecided | GA90 |
| Jim Carney | City of Waukee | Undecided | GA90 |
| Sydney Gangestad | City of West Des Moines | Undecided | GA90 |
| Tim Coonan | City of West Des Moines | Undecided | GA90 |
| Joseph Buffington | County Planning and Zoning Officials of Iowa | Undecided | GA90 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA90 |
| Rachel Ong | Greater Des Moines Habitat for Humanity | Undecided | GA90 |
| Logan Murray | Greater Iowa Apartment Association | Supporting | GA90 |
| Noah Tabor | Greater Iowa Apartment Association | Supporting | GA90 |
| Kate Walton | Grow Clinton County | Undecided | GA90 |
| Madeleine Bradley | Grow Clinton County | Undecided | GA90 |
| Matt Eide | Grow Clinton County | Undecided | GA90 |
| Eric Goranson | Habitat for Humanity of Iowa | Undecided | GA90 |
| Jake Highfill | Home Builders Association of Iowa | Supporting | GA90 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA90 |
| Tony Phillips | Home Builders Association of Iowa | Supporting | GA90 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA90 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA90 |
| Angela Caulk | International Association of Plumbing & Mechanical Officials (IAPMO) | Undecided | GA90 |
| Logan Murray | International Association of Plumbing & Mechanical Officials (IAPMO) | Undecided | GA90 |
| Noah Tabor | International Association of Plumbing & Mechanical Officials (IAPMO) | Undecided | GA90 |
| Jim Obradovich | Iowa Association of Building Officials | Opposing | 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 |
| Jon Murphy | Iowa Association of Councils of Governments | Undecided | GA90 |
| Tom Cope | Iowa Association of Councils of Governments | Undecided | GA90 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA90 |
| Greta Haas | Iowa Association of Realtors | Supporting | GA90 |
| Jennifer Kingland | Iowa Association of Realtors | Supporting | GA90 |
| Mike Rozenboom | Iowa Bankers Association | Supporting | GA90 |
| Sharon Presnall | Iowa Bankers Association | Supporting | GA90 |
| Joe Murphy | Iowa Business Council | Supporting | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA90 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA90 |
| Gracie Brandsgard | Iowa Credit Union League | Undecided | GA90 |
| Justin Hupfer | Iowa Credit Union League | Undecided | GA90 |
| Josie Wagler | Iowa Dept. of Public Safety | Undecided | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Undecided | GA90 |
| Threase Harms | Iowa Environmental Council | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Undecided | GA90 |
| Alan Kemp | Iowa League of Cities | Opposing | GA90 |
| Daniel Stalder | Iowa League of Cities | Opposing | GA90 |
| Robert Palmer | Iowa League of Cities | Opposing | GA90 |
| Andy Conlin | Iowa Manufactured Housing Association | Supporting | GA90 |
| Mike Rozenboom | Iowa Mortgage Association | Supporting | GA90 |
| Sharon Presnall | Iowa Mortgage Association | Supporting | GA90 |
| David Adelman | Iowa Real Estate Developers Association | Undecided | GA90 |
| Frank Chiodo | Iowa Real Estate Developers Association | Undecided | GA90 |
| Lillie Brady | Iowa Real Estate Developers Association | Undecided | GA90 |
| Matt Hinch | Iowa Real Estate Developers Association | Undecided | GA90 |
| Sara Allen | Iowa Real Estate Developers Association | Undecided | GA90 |
| Michael Gronstal | Iowa State Building and Construction Trades | Opposing | GA90 |
| Michael Gronstal | Iowa State Building and Construction Trades | Undecided | GA90 |
| Dylan Gramlich | Laborers International Union of North America | Undecided | GA90 |
| Logan Murray | Landlords of Iowa | Supporting | GA90 |
| Noah Tabor | Landlords of Iowa | Supporting | GA90 |
| Kate Walton | Lennox International | Undecided | GA90 |
| Madeleine Bradley | Lennox International | Undecided | GA90 |
| Matt Eide | Lennox International | Undecided | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA90 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA90 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA90 |
| Troy Skinner | Marion County Board of Supervisors | Undecided | GA90 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA90 |
| Julie Smith | Master Builders of Iowa | Undecided | GA90 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |
| David Adelman | Metropolitan Coalition | Undecided | GA90 |
| Frank Chiodo | Metropolitan Coalition | Undecided | GA90 |
| Lillie Brady | Metropolitan Coalition | Undecided | GA90 |
| Matt Hinch | Metropolitan Coalition | Undecided | GA90 |
| Sara Allen | Metropolitan Coalition | Undecided | GA90 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA90 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA90 |
| Dane Schumann | North Central States Regional Council of Carpenters | Undecided | GA90 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Undecided | GA90 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Undecided | GA90 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Undecided | GA90 |
| Amy Campbell | Polk County - Board of Supervisors | Undecided | GA90 |
| Craig Patterson | Polk County - Board of Supervisors | Undecided | GA90 |
| Sydney Gangestad | Polk County - Board of Supervisors | Undecided | GA90 |
| Tim Coonan | Polk County - Board of Supervisors | Undecided | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Patrick Burns | The Brick Industry Association | Undecided | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |