| 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 |
| Drew Klein | Americans For Prosperity | Supporting | GA90 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Christopher Rants | Center for Rural Affairs | Opposing | GA90 |
| John Cacciatore | Center for Rural Affairs | Opposing | GA90 |
| Kate Hansen | Center for Rural Affairs | Opposing | GA90 |
| Gary Grant | City of Cedar Rapids | Undecided | GA90 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA90 |
| Doug Struyk | City of Des Moines | Opposing | GA90 |
| Emilee Harris-Puricelli | City of Des Moines | Opposing | GA90 |
| Jen Schulte | City of Des Moines | Opposing | GA90 |
| Jennifer Dorman | City of Des Moines | Opposing | GA90 |
| Jim Carney | City of Des Moines | Opposing | GA90 |
| Doug Struyk | City of Waukee | Opposing | GA90 |
| Jennifer Dorman | City of Waukee | Opposing | GA90 |
| Jim Carney | City of Waukee | Opposing | GA90 |
| Sydney Gangestad | City of West Des Moines | Undecided | GA90 |
| Tim Coonan | City of West Des Moines | Undecided | GA90 |
| Jefferson Fink | Conservation Districts of Iowa | Opposing | GA90 |
| Jim Obradovich | Conservation Districts of Iowa | Opposing | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA90 |
| Joseph Buffington | County Planning and Zoning Officials of Iowa | Opposing | GA90 |
| John Hirl | Ducks Unlimited, Inc. | Undecided | GA90 |
| Marc Beltrame | Ducks Unlimited, Inc. | Undecided | GA90 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA90 |
| Jefferson Fink | Iowa Association of Building Officials | Opposing | GA90 |
| Jim Obradovich | Iowa Association of Building Officials | Opposing | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| John Hirl | Iowa Association of Municipal Utilities | Undecided | GA90 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Undecided | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA90 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA90 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA90 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Opposing | GA90 |
| Threase Harms | Iowa Environmental Council | Opposing | GA90 |
| Nichole Hansen | Iowa Finance Authority | Undecided | GA90 |
| Andy Conlin | Iowa Manufactured Housing 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 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA90 |
| William Peterson | Iowa State Association of Counties | Opposing | GA90 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA90 |
| William Peterson | Iowa State Association of County Supervisors | Opposing | 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 | Opposing | GA90 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA90 |
| Kelly Meyers | Marion County Board of Supervisors | Opposing | GA90 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA90 |
| Troy Skinner | Marion County Board of Supervisors | Opposing | GA90 |
| Troy Skinner | Marion County Board of Supervisors | Undecided | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | Undecided | GA90 |
| David Adelman | Metropolitan Coalition | Opposing | GA90 |
| Frank Chiodo | Metropolitan Coalition | Opposing | GA90 |
| Lillie Brady | Metropolitan Coalition | Opposing | GA90 |
| Matt Hinch | Metropolitan Coalition | Opposing | GA90 |
| Sara Allen | Metropolitan Coalition | Opposing | 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 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |