| Drew Klein | Americans For Prosperity | Supporting | GA90 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Brad Epperly | Ames Regional Economic Alliance | Undecided | GA90 |
| Dustin Miller | Ames Regional Economic Alliance | Undecided | GA90 |
| Kate Walton | Arconic (Formerly Alcoa) | Undecided | GA90 |
| Madeleine Bradley | Arconic (Formerly Alcoa) | Undecided | GA90 |
| Matt Eide | Arconic (Formerly Alcoa) | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Mike Owen | Common Good Iowa | Opposing | GA90 |
| Natalie Veldhouse | Common Good Iowa | Opposing | GA90 |
| Sean Finn | Common Good Iowa | Opposing | GA90 |
| Sheila Hansen | Common Good Iowa | Opposing | GA90 |
| Angela Caulk | Delta Dental of Iowa | Supporting | GA90 |
| Casey Ficek | Delta Dental of Iowa | Supporting | GA90 |
| Kole Pederson | Delta Dental of Iowa | Supporting | GA90 |
| Logan Murray | Delta Dental of Iowa | Supporting | GA90 |
| Noah Tabor | Delta Dental of Iowa | Supporting | GA90 |
| Lee Henderson | Federation of Iowa Insurers | Supporting | GA90 |
| Matt McKinney | Federation of Iowa Insurers | Supporting | GA90 |
| Paige Thorson | Federation of Iowa Insurers | Supporting | GA90 |
| RG Schwarm | Federation of Iowa Insurers | 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 |
| Jake Ketzner | Independent Insurance Agents of Iowa | Supporting | GA90 |
| Larry Blixt | Independent Insurance Agents of Iowa | Supporting | GA90 |
| Nick Boeyink | Independent Insurance Agents of Iowa | Supporting | GA90 |
| Thomas O'Meara | Independent Insurance Agents of Iowa | Supporting | GA90 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA90 |
| Joe Murphy | Iowa Business Council | Supporting | GA90 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA90 |
| Tom Chapman | Iowa Catholic Conference | Undecided | GA90 |
| James Kersten | Iowa Central Community College | Undecided | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Opposing | GA90 |
| Threase Harms | Iowa Environmental Council | Opposing | GA90 |
| Jeff Pitts | Iowa Faith and Freedom Coalition | Undecided | GA90 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA90 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA90 |
| Melissa Peterson | Iowa State Education Association | Opposing | GA90 |
| Morgan Miller | Iowa State Education Association | Opposing | GA90 |
| Jake Ketzner | Iowa Total Care, A Subsidiary of Centene Corporation | Undecided | GA90 |
| Marc Beltrame | Iowa Total Care, A Subsidiary of Centene Corporation | Undecided | GA90 |
| Stacie Maass | Iowa Total Care, A Subsidiary of Centene Corporation | Undecided | GA90 |
| Chris Hagenow | Iowans for Tax Relief | Supporting | GA90 |
| Victoria Sinclair | Iowans for Tax Relief | Supporting | 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 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | 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 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA90 |
| Karl Schilling | United Professionals/UE | Opposing | GA90 |
| Margaret Buckton | Urban Education Network of Iowa | Opposing | GA90 |
| Brandon Geib | Wellmark, Inc. | Supporting | GA90 |
| Scott Sundstrom | Wellmark, Inc. | Supporting | GA90 |