| Jon Murphy | American Planning Association Iowa Chapter | Undecided | GA90 |
| Tom Cope | American Planning Association Iowa Chapter | Undecided | GA90 |
| Brad Epperly | Ames Regional Economic Alliance | Undecided | GA90 |
| Dustin Miller | Ames Regional Economic Alliance | Undecided | GA90 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Jon Murphy | City of Cedar Falls | Undecided | GA90 |
| Tom Cope | City of Cedar Falls | Undecided | GA90 |
| Gary Grant | City of Cedar Rapids | Opposing | GA90 |
| Larry Murphy | City of Cedar Rapids | Opposing | GA90 |
| Jon Murphy | City of Coralville | Undecided | GA90 |
| Tom Cope | City of Coralville | 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 Iowa City | Undecided | GA90 |
| Jennifer Dorman | City of Iowa City | Undecided | GA90 |
| Jim Carney | City of Iowa City | Undecided | GA90 |
| Doug Struyk | City of Waukee | Undecided | GA90 |
| Jennifer Dorman | City of Waukee | Undecided | GA90 |
| Jim Carney | City of Waukee | Undecided | GA90 |
| Kelli Soyer | Common Good Iowa | Undecided | GA90 |
| Mike Owen | Common Good Iowa | Undecided | GA90 |
| Natalie Veldhouse | Common Good Iowa | Undecided | GA90 |
| Sheila Hansen | Common Good Iowa | Undecided | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA90 |
| Clara Wulfsen | Department of Revenue | Supporting | GA90 |
| Christopher Rants | Des Moines Public Schools | Undecided | GA90 |
| John Cacciatore | Des Moines Public Schools | Undecided | GA90 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA90 |
| Jake Ketzner | Eastlake Partnership | Undecided | GA90 |
| Nick Boeyink | Eastlake Partnership | Undecided | GA90 |
| Molly Severn | Governor's Office | Supporting | GA90 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA90 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA90 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA90 |
| Jeff Smith | Greater Fort Dodge Growth Alliance | Undecided | GA90 |
| Maggie Smith-Fitzgerald | Greater Fort Dodge Growth Alliance | Undecided | GA90 |
| Matt Fitzgerald | Greater Fort Dodge Growth Alliance | Undecided | GA90 |
| Angela Caulk | Greater Iowa Apartment Association | Undecided | GA90 |
| Logan Murray | Greater Iowa Apartment Association | Undecided | GA90 |
| Noah Tabor | Greater Iowa Apartment Association | Undecided | GA90 |
| David Adelman | Hubbell Realty Company | Undecided | GA90 |
| Frank Chiodo | Hubbell Realty Company | Undecided | GA90 |
| Lillie Brady | Hubbell Realty Company | Undecided | GA90 |
| Matt Hinch | Hubbell Realty Company | Undecided | GA90 |
| Sara Allen | Hubbell Realty Company | Undecided | 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 |
| Emily Shields | Iowa Association of Community College Trustees | Undecided | GA90 |
| Jeff Smith | Iowa Association of Community College Trustees | Undecided | GA90 |
| Laurie Wolf | Iowa Association of Community College Trustees | Undecided | GA90 |
| Maggie Smith-Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA90 |
| Matt Fitzgerald | Iowa Association of Community College Trustees | Undecided | GA90 |
| Greta Haas | Iowa Association of Realtors | Undecided | GA90 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA90 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA90 |
| Michelle Johnson | Iowa Association of School Boards | Undecided | GA90 |
| Joe Murphy | Iowa Business Council | Undecided | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA90 |
| Census Lo-liyong | Iowa County Recorders Association | Undecided | GA90 |
| Megan Clyman | Iowa County Recorders Association | Undecided | GA90 |
| Alan Kemp | Iowa League of Cities | Opposing | GA90 |
| Alan Kemp | Iowa League of Cities | Undecided | GA90 |
| Daniel Stalder | Iowa League of Cities | Opposing | GA90 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA90 |
| Matt McKinney | Iowa League of Cities | Undecided | GA90 |
| RG Schwarm | Iowa League of Cities | Undecided | GA90 |
| Robert Palmer | Iowa League of Cities | Opposing | GA90 |
| Robert Palmer | Iowa League of Cities | Undecided | GA90 |
| Amy Campbell | Iowa Library Association (ILA) | Undecided | GA90 |
| Craig Patterson | Iowa Library Association (ILA) | Undecided | GA90 |
| Andy Conlin | Iowa Manufactured Housing Association | Supporting | GA90 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Opposing | GA90 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Withdrawn | GA90 |
| Larry Murphy | Iowa Police Chief Association (FKA Iowa Police Executive Forum) | Undecided | GA90 |
| Amy Campbell | Iowa Public Transit Association (IPT) | Undecided | GA90 |
| Craig Patterson | Iowa Public Transit Association (IPT) | Undecided | GA90 |
| Mike Heller | Iowa State Association of Assessors | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA90 |
| William Peterson | Iowa State Association of Counties | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of County Auditors | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of County Auditors | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of County Auditors | Undecided | GA90 |
| William Peterson | Iowa State Association of County Auditors | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA90 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA90 |
| Melissa Peterson | Iowa State Education Association | Undecided | GA90 |
| Morgan Miller | Iowa State Education Association | Undecided | GA90 |
| Tom Sands | Iowa Taxpayers Association | Supporting | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Supporting | GA90 |
| Jake Highfill | Iowans for Tax Relief | Supporting | GA90 |
| Tony Phillips | Iowans for Tax Relief | Supporting | GA90 |
| Victoria Sinclair | Iowans for Tax Relief | Supporting | GA90 |
| Gary Grant | Linn County Board of Supervisors | Withdrawn | GA90 |
| Gary Grant | Linn County Board of Supervisors | Opposing | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Withdrawn | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Opposing | 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 |
| John Hall | Marshalltown Area Chamber of Commerce | Undecided | GA90 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA90 |
| Julie Smith | Master Builders of Iowa | Undecided | GA90 |
| Angela Caulk | Metropolitan Coalition | Undecided | GA90 |
| Logan Murray | Metropolitan Coalition | Undecided | GA90 |
| Noah Tabor | Metropolitan Coalition | Undecided | GA90 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA90 |
| Emily Piper | Piper Sandler | Undecided | GA90 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA90 |
| Brad Epperly | Quad Cities Chamber of Commerce | Undecided | GA90 |
| Dustin Miller | Quad Cities Chamber of Commerce | Undecided | GA90 |
| Dave Daughton | Rural School Advocates of Iowa | Undecided | GA90 |
| Margaret Buckton | Rural School Advocates of Iowa | Undecided | GA90 |
| Dave Daughton | School Administrators of Iowa | Undecided | GA90 |
| Gary Grant | Urban County Coalition | Opposing | GA90 |
| Gary Grant | Urban County Coalition | Withdrawn | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Opposing | GA90 |
| Larry Murphy | Urban County Coalition | Withdrawn | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |
| Margaret Buckton | Urban Education Network of Iowa | Undecided | GA90 |