| Jeff Pitts | ACCO Unlimited Corporation | Undecided | GA90 |
| Chelsea Hoye | American Legion of Iowa | Supporting | GA90 |
| Nick Laning | American Legion of Iowa | Supporting | GA90 |
| Threase Harms | American Legion of Iowa | Supporting | GA90 |
| Drew Klein | Americans For Prosperity | Undecided | GA90 |
| Tyler Raygor | Americans For Prosperity | Undecided | GA90 |
| Brad Epperly | Ames Regional Economic Alliance | Undecided | GA90 |
| Dustin Miller | Ames Regional Economic Alliance | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | 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 |
| Jennifer Dorman | City of Des Moines | Undecided | GA90 |
| Jim Carney | City of Des Moines | Undecided | GA90 |
| Brad Epperly | City of Marion | Undecided | GA90 |
| Dustin Miller | City of Marion | Undecided | GA90 |
| Doug Struyk | City of Waukee | Undecided | GA90 |
| Jennifer Dorman | City of Waukee | Undecided | GA90 |
| Jim Carney | City of Waukee | Undecided | GA90 |
| Mike Owen | Common Good Iowa | Opposing | GA90 |
| Natalie Veldhouse | Common Good Iowa | Opposing | GA90 |
| Sheila Hansen | Common Good Iowa | Opposing | GA90 |
| Mark Joyce | Corteva Agriscience | Undecided | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Undecided | GA90 |
| Rachel Ong | Greater Des Moines Habitat for Humanity | Undecided | 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 |
| Kate Walton | Grow Clinton County | Undecided | GA90 |
| Madeleine Bradley | Grow Clinton County | Undecided | GA90 |
| Matt Eide | Grow Clinton County | Undecided | GA90 |
| Mark Joyce | Hy-Vee, Inc. | Undecided | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA90 |
| Greta Haas | Iowa Association of Realtors | Supporting | GA90 |
| Jennifer Kingland | Iowa Association of Realtors | Supporting | GA90 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA90 |
| Emily Piper | Iowa Association of School Boards | Opposing | GA90 |
| Michelle Johnson | Iowa Association of School Boards | Undecided | GA90 |
| Michelle Johnson | Iowa Association of School Boards | Opposing | GA90 |
| Jenica Lensmeyer | Iowa Bankers Association | Supporting | GA90 |
| John Sorensen | Iowa Bankers Association | Supporting | GA90 |
| Mike Rozenboom | Iowa Bankers Association | Supporting | GA90 |
| Sharon Presnall | Iowa Bankers Association | Supporting | GA90 |
| Joe Murphy | Iowa Business Council | Supporting | GA90 |
| Joe Murphy | Iowa Business Council | Undecided | GA90 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA90 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA90 |
| Tom Ferguson | Iowa County Attorneys Association | Undecided | GA90 |
| Census Lo-liyong | Iowa County Recorders Association | Supporting | GA90 |
| Gracie Brandsgard | Iowa Credit Union League | Undecided | GA90 |
| Justin Hupfer | Iowa Credit Union League | Undecided | GA90 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matt Gronewald | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA90 |
| Chelsea Hoye | Iowa Farmers Union | Undecided | GA90 |
| Threase Harms | Iowa Farmers Union | Undecided | GA90 |
| Jeff Pitts | Iowa Foundation for Parks and Recreation | Undecided | GA90 |
| Alan Kemp | Iowa League of Cities | Opposing | GA90 |
| Daniel Stalder | Iowa League of Cities | Opposing | GA90 |
| Matt McKinney | Iowa League of Cities | Opposing | GA90 |
| RG Schwarm | Iowa League of Cities | Opposing | GA90 |
| Robert Palmer | Iowa League of Cities | Opposing | 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) | Undecided | GA90 |
| Amy Campbell | Iowa Public Transit Association (IPT) | Undecided | GA90 |
| Craig Patterson | Iowa Public Transit Association (IPT) | Undecided | GA90 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Mike Heller | Iowa State Association of Assessors | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA90 |
| William Peterson | Iowa State Association of Counties | Undecided | GA90 |
| William Peterson | Iowa State Association of Counties | Opposing | GA90 |
| Jamie Cashman | Iowa State Association of County Auditors | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of County Auditors | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of County Auditors | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of County Auditors | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of County Auditors | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of County Auditors | Opposing | GA90 |
| William Peterson | Iowa State Association of County Auditors | Undecided | GA90 |
| William Peterson | Iowa State Association of County Auditors | Opposing | GA90 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA90 |
| Jamie Cashman | Iowa State Association of County Supervisors | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA90 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA90 |
| Lucas Beenken | Iowa State Association of County Supervisors | Opposing | GA90 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA90 |
| William Peterson | Iowa State Association of County Supervisors | Opposing | GA90 |
| Melissa Peterson | Iowa State Education Association | Undecided | GA90 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA90 |
| Morgan Miller | Iowa State Education Association | Undecided | GA90 |
| Morgan Miller | Iowa State Education Association | Opposing | GA90 |
| Ed Failor | Iowa State Treasurer's Office | Supporting | GA90 |
| Molly Widen | Iowa State Treasurer's Office | Supporting | GA90 |
| Mike Heller | Iowa Talented and Gifted Association | Undecided | GA90 |
| Tom Sands | Iowa Taxpayers Association | Supporting | GA90 |
| Tom Sands | Iowa Taxpayers Association | Undecided | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Supporting | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Opposing | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Undecided | GA90 |
| Victoria Sinclair | Iowans for Tax Relief | Supporting | GA90 |
| Victoria Sinclair | Iowans for Tax Relief | Opposing | GA90 |
| Victoria Sinclair | Iowans for Tax Relief | Undecided | GA90 |
| Christopher Rants | Lake Panorama Association | Undecided | GA90 |
| John Cacciatore | Lake Panorama Association | Undecided | GA90 |
| Justin Hupfer | Lake Panorama Association | Undecided | GA90 |
| Kellie Paschke | Landus Cooperative | Undecided | GA90 |
| Kelly Meyers | Landus Cooperative | Undecided | GA90 |
| Troy Skinner | Landus Cooperative | Undecided | GA90 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA90 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA90 |
| Gary Grant | MH/DS of East Central Region | Undecided | GA90 |
| Larry Murphy | MH/DS of East Central Region | Undecided | GA90 |
| Kellie Paschke | Marion County Board of Supervisors | Opposing | GA90 |
| Kelly Meyers | Marion County Board of Supervisors | Opposing | GA90 |
| Troy Skinner | Marion County Board of Supervisors | Opposing | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | 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) | Supporting | GA90 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA90 |
| Amy Campbell | Okoboji Tourism | Undecided | GA90 |
| Craig Patterson | Okoboji Tourism | Undecided | GA90 |
| Amy Campbell | Polk County - Board of Supervisors | Undecided | GA90 |
| Craig Patterson | 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 |
| 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 | Opposing | GA90 |
| Margaret Buckton | Rural School Advocates of Iowa | Opposing | GA90 |
| Dave Daughton | School Administrators of Iowa | Opposing | GA90 |
| Michael Triplett | Self Storage Association | Supporting | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |
| Margaret Buckton | Urban Education Network of Iowa | Opposing | GA90 |
| Mike Heller | Waste Management, Inc. | Undecided | GA90 |