| Drew Klein | Americans For Prosperity | Supporting | GA89 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA89 |
| Brad Epperly | Ames Chamber of Commerce | Undecided | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Undecided | GA89 |
| Brad Epperly | Bayer U.S. LLC | Undecided | GA89 |
| Dustin Miller | Bayer U.S. LLC | Undecided | GA89 |
| Carolann Jensen | Board of Regents, State of Iowa | Undecided | GA89 |
| Jennifer Harbison | Board of Regents, State of Iowa | Undecided | GA89 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA89 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA89 |
| Don Brown | Cargill | Opposing | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| MaryNelle Trefz | Common Good Iowa | Opposing | GA89 |
| Mike Owen | Common Good Iowa | Opposing | GA89 |
| Sheila Hansen | Common Good Iowa | Opposing | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Supporting | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA89 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA89 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA89 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA89 |
| Hannah McDowell | Grow Clinton County | Undecided | GA89 |
| Nick Laning | Grow Clinton County | Undecided | GA89 |
| Threase Harms | Grow Clinton County | Undecided | GA89 |
| Eric Goranson | Habitat for Humanity of Iowa | Supporting | GA89 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| David Adelman | Hubbell Realty Company | Supporting | GA89 |
| Frank Chiodo | Hubbell Realty Company | Supporting | GA89 |
| Matt Hinch | Hubbell Realty Company | Supporting | GA89 |
| Sara Allen | Hubbell Realty Company | Supporting | GA89 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| John Davis | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA89 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Supporting | GA89 |
| Brad Epperly | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Dustin Miller | Iowa Association of Municipal Utilities | Undecided | GA89 |
| Jennifer Kingland | Iowa Association of Realtors | Supporting | GA89 |
| Mike Rozenboom | Iowa Bankers Association | Supporting | GA89 |
| Sharon Presnall | Iowa Bankers Association | Supporting | GA89 |
| David Adelman | Iowa Biotechnology Association | Undecided | GA89 |
| Frank Chiodo | Iowa Biotechnology Association | Undecided | GA89 |
| Jessica Hyland | Iowa Biotechnology Association | Undecided | GA89 |
| Matt Hinch | Iowa Biotechnology Association | Undecided | GA89 |
| Sara Allen | Iowa Biotechnology Association | Undecided | GA89 |
| Joe Murphy | Iowa Business Council | Supporting | GA89 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA89 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA89 |
| Tom Chapman | Iowa Catholic Conference | Undecided | GA89 |
| Brad Epperly | Iowa Chamber Alliance | Supporting | GA89 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA89 |
| Dustin Miller | Iowa Chamber Alliance | Supporting | GA89 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA89 |
| Gracie Brandsgard | Iowa Credit Union League | Supporting | GA89 |
| Gracie Brandsgard | Iowa Credit Union League | Undecided | GA89 |
| Justin Hupfer | Iowa Credit Union League | Supporting | GA89 |
| Justin Hupfer | Iowa Credit Union League | Undecided | GA89 |
| Deanna Triplett | Iowa Economic Development Authority | Undecided | GA89 |
| Kristin Hanks-Bents | Iowa Finance Authority | Undecided | GA89 |
| Bob Rafferty | Iowa Housing Partnership | Supporting | GA89 |
| Nick Laning | Iowa Housing Partnership | Supporting | GA89 |
| Rachel Ong | Iowa Housing Partnership | Supporting | GA89 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA89 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA89 |
| Eric Goranson | Iowa Restaurant Association | Supporting | GA89 |
| BRITTANY LUMLEY | Iowa Student Loan Liquidity Corp. | Undecided | GA89 |
| Charlotte Eby | Iowa Student Loan Liquidity Corp. | Undecided | GA89 |
| Jeffrey Boeyink | Iowa Student Loan Liquidity Corp. | Undecided | GA89 |
| Taylor McDonald | Iowa Student Loan Liquidity Corp. | Undecided | GA89 |
| Tom Sands | Iowa Taxpayers Association | Supporting | GA89 |
| Maison Bleam | Iowa Utilities Board | Undecided | GA89 |
| Victoria Sinclair | Iowans for Tax Relief | Supporting | 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 | Supporting | GA89 |
| Frank Chiodo | Metropolitan Coalition | Supporting | GA89 |
| Matt Hinch | Metropolitan Coalition | Supporting | GA89 |
| Sara Allen | Metropolitan Coalition | Supporting | GA89 |
| Onnalee Gettler | MidAmerican Energy Company | Supporting | GA89 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Supporting | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Supporting | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Supporting | GA89 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA89 |
| Jim Obradovich | Trusted Energy | Supporting | GA89 |
| Robert Mulqueen | Trusted Energy | Supporting | GA89 |
| Mike Heller | Waste Management, Inc. | Undecided | GA89 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA89 |
| Brandon Geib | Wellmark, Inc. | Undecided | GA89 |
| Scott Sundstrom | Wellmark, Inc. | Undecided | GA89 |