| Stacy Frelund | American Heart Association | Undecided | GA89 |
| Brad Epperly | Ames Chamber of Commerce | Undecided | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Undecided | GA89 |
| Gary Grant | City of Cedar Rapids | Opposing | GA89 |
| Larry Murphy | City of Cedar Rapids | Opposing | GA89 |
| Meghan Malloy | City of Cedar Rapids | Opposing | GA89 |
| Alex Hassel | City of Des Moines | Opposing | GA89 |
| Doug Struyk | City of Des Moines | Opposing | GA89 |
| Jen Schulte | City of Des Moines | Opposing | GA89 |
| Jennifer Dorman | City of Des Moines | Opposing | GA89 |
| Jim Carney | City of Des Moines | Opposing | GA89 |
| Doug Struyk | City of Iowa City | Opposing | GA89 |
| Jennifer Dorman | City of Iowa City | Opposing | GA89 |
| Jim Carney | City of Iowa City | Opposing | GA89 |
| Doug Struyk | City of Waukee | Opposing | GA89 |
| Jennifer Dorman | City of Waukee | Opposing | GA89 |
| Jim Carney | City of Waukee | Opposing | GA89 |
| Sydney Gangestad | City of West Des Moines | Opposing | GA89 |
| Tim Coonan | City of West Des Moines | Opposing | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA89 |
| Luke Elzinga | Des Moines Area Religious Council | Opposing | GA89 |
| Jake Ketzner | Eastlake Partnership | Supporting | GA89 |
| Andrea Woodard | Greater Des Moines Partnership | Opposing | GA89 |
| Brad Epperly | Greater Des Moines Partnership | Opposing | GA89 |
| Dustin Miller | Greater Des Moines Partnership | Opposing | GA89 |
| Michael Triplett | Greater Iowa Apartment Association | Supporting | GA89 |
| Hannah McDowell | Grow Clinton County | Undecided | GA89 |
| Nick Laning | Grow Clinton County | Undecided | GA89 |
| Threase Harms | Grow Clinton County | Undecided | GA89 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA89 |
| Teresa Bomhoff | IA Mental Health Planning Council | Opposing | GA89 |
| Andrew Lietzow | Iowa Apartment Association (dba IaRPOA) | Supporting | GA89 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA89 |
| Larry Murphy | Iowa Catholic Conference | Opposing | GA89 |
| Meghan Malloy | Iowa Catholic Conference | Opposing | GA89 |
| Tom Chapman | Iowa Catholic Conference | Opposing | GA89 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA89 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA89 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA89 |
| Brian Carter | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Gary Nims | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Rita Carter | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Roberta Paige | Iowa Conference of United Methodist Church | Opposing | GA89 |
| Gracie Brandsgard | Iowa Credit Union League | Opposing | GA89 |
| Justin Hupfer | Iowa Credit Union League | Opposing | GA89 |
| Bob Rafferty | Iowa Housing Partnership | Opposing | GA89 |
| Nick Laning | Iowa Housing Partnership | Opposing | GA89 |
| Rachel Ong | Iowa Housing Partnership | Opposing | GA89 |
| Andrew Lietzow | Iowa Landlord Association | Supporting | GA89 |
| Alan Kemp | Iowa League of Cities | Opposing | GA89 |
| Daniel Stalder | Iowa League of Cities | Opposing | GA89 |
| Robert Palmer | Iowa League of Cities | Opposing | GA89 |
| Leslie Carpenter | Iowa Mental Health Advocacy | Opposing | GA89 |
| Amy Campbell | Iowa Primary Care Association | Opposing | GA89 |
| Craig Patterson | Iowa Primary Care Association | Opposing | GA89 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA89 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA89 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA89 |
| William Peterson | Iowa State Association of Counties | Undecided | GA89 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA89 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA89 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA89 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA89 |
| Jill Altringer | Landlords of Iowa | Supporting | GA89 |
| Gary Grant | Linn County Board of Supervisors | Opposing | GA89 |
| Larry Murphy | Linn County Board of Supervisors | Opposing | GA89 |
| Meghan Malloy | Linn County Board of Supervisors | Opposing | GA89 |
| Kellie Paschke | Marion County Board of Supervisors | Undecided | GA89 |
| Kelly Meyers | Marion County Board of Supervisors | Undecided | GA89 |
| Logan Murray | Marion County Board of Supervisors | Undecided | GA89 |
| Troy Skinner | Marion County Board of Supervisors | Undecided | GA89 |
| David Adelman | Metropolitan Coalition | Opposing | GA89 |
| Frank Chiodo | Metropolitan Coalition | Opposing | GA89 |
| Matt Hinch | Metropolitan Coalition | Opposing | GA89 |
| Sara Allen | Metropolitan Coalition | Opposing | GA89 |
| Betty Andrews | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Opposing | GA89 |
| David Walker | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Opposing | GA89 |
| Russell Lovell | NAACP, National Association for the Advancement of Colored People, Iowa-Nebraska | Opposing | GA89 |
| Amy Campbell | Polk County - Board of Supervisors | Opposing | GA89 |
| Amy Campbell | Polk County - Board of Supervisors | Withdrawn | GA89 |
| Amy Campbell | Polk County - Board of Supervisors | Supporting | GA89 |
| Craig Patterson | Polk County - Board of Supervisors | Opposing | GA89 |
| Craig Patterson | Polk County - Board of Supervisors | Withdrawn | GA89 |
| Craig Patterson | Polk County - Board of Supervisors | Supporting | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Dave Stone | United Way of Central Iowa | Opposing | GA89 |
| Jon Murphy | United Ways of Iowa | Opposing | GA89 |
| Tom Cope | United Ways of Iowa | Opposing | GA89 |
| Gary Grant | Urban County Coalition | Undecided | GA89 |
| Larry Murphy | Urban County Coalition | Undecided | GA89 |
| Meghan Malloy | Urban County Coalition | Undecided | GA89 |