| Doug Struyk | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA90 |
| Jackie Cale | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA90 |
| Jennifer Dorman | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA90 |
| Jim Carney | American Cancer Society Cancer Action Network (ACS CAN) | Undecided | GA90 |
| Angela Caulk | Greater Iowa Apartment Association | Undecided | GA90 |
| Christian Frankl | Greater Iowa Apartment Association | Undecided | GA90 |
| Logan Murray | Greater Iowa Apartment Association | Undecided | GA90 |
| Noah Tabor | Greater Iowa Apartment Association | Undecided | GA90 |
| Jake Highfill | Home Builders Association of Iowa | Undecided | GA90 |
| Jake Highfill | Home Builders Association of Iowa | Opposing | GA90 |
| Jay Iverson | Home Builders Association of Iowa | Opposing | GA90 |
| Tony Phillips | Home Builders Association of Iowa | Undecided | GA90 |
| Tony Phillips | Home Builders Association of Iowa | Opposing | GA90 |
| David Adelman | Hubbell Realty Company | Undecided | GA90 |
| Frank Chiodo | Hubbell Realty Company | Undecided | GA90 |
| Matt Hinch | Hubbell Realty Company | Undecided | GA90 |
| Paige Thorson | Hubbell Realty Company | Undecided | GA90 |
| Sara Allen | Hubbell Realty Company | Undecided | GA90 |
| Jefferson Fink | Iowa Association of Building Officials | Undecided | GA90 |
| Jim Obradovich | Iowa Association of Building Officials | Undecided | GA90 |
| Victoria Sinclair | Iowa Association of Building Officials | Undecided | GA90 |
| Greta Haas | Iowa Association of Realtors | Undecided | GA90 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA90 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA90 |
| Jefferson Fink | Iowa Environmental Health Association | Undecided | GA90 |
| Jim Obradovich | Iowa Environmental Health Association | Undecided | GA90 |
| Victoria Sinclair | Iowa Environmental Health Association | Undecided | GA90 |
| Nichole Hansen | Iowa Finance Authority | Undecided | GA90 |
| David Adelman | Iowa Real Estate Developers Association | Undecided | GA90 |
| Frank Chiodo | Iowa Real Estate Developers Association | Undecided | GA90 |
| Matt Hinch | Iowa Real Estate Developers Association | Undecided | GA90 |
| Paige Thorson | Iowa Real Estate Developers Association | Undecided | GA90 |
| Sara Allen | Iowa Real Estate Developers Association | Undecided | GA90 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA90 |