| Brad Epperly | Ames Chamber of Commerce | Opposing | GA89 |
| Dustin Miller | Ames Chamber of Commerce | Opposing | GA89 |
| Scott Newhard | Associated General Contractors of Iowa | Opposing | 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 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Opposing | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Opposing | GA89 |
| Ryan Sempf | Dubuque Area Chamber of Commerce | Undecided | GA89 |
| Marcus Haack | Episcopal Diocese of Iowa | Opposing | GA89 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Opposing | 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 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA89 |
| Teresa Bomhoff | IA Mental Health Planning Council | Opposing | GA89 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA89 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA89 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA89 |
| Michael McCarthy | Iowa Alliance For Retired Americans | Opposing | GA89 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA89 |
| John Davis | Iowa Association of Business and Industry (ABI) | Opposing | GA89 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA89 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA89 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA89 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA89 |
| Joe Murphy | Iowa Business Council | 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 | Opposing | GA89 |
| Dustin Miller | Iowa Chamber Alliance | Opposing | 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 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA89 |
| Eric Branstad | Iowa Faith and Freedom Coalition | Supporting | GA89 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Opposing | GA89 |
| Jake Ketzner | Iowa Greenhouse Growers Association | Opposing | GA89 |
| Larry Blixt | Iowa Greenhouse Growers Association | Opposing | GA89 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA89 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA89 |
| Eric Goranson | Iowa Hotel & Lodging Association | Opposing | GA89 |
| Frederick Haskins | Iowa Insurance Associates | Opposing | GA89 |
| Erica Johnson | Iowa Migrant Movement for Justice | Opposing | GA89 |
| Robert Ussery | Iowa Minuteman Civil Defense Corps | Supporting | GA89 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA89 |
| Kelly Meyers | Iowa Peace Officers Association | Undecided | GA89 |
| Logan Murray | Iowa Peace Officers Association | Undecided | GA89 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA89 |
| Eric Goranson | Iowa Restaurant Association | Opposing | GA89 |
| Carlos Rodriguez Rosa | Iowa School Mental Health Alliance | Opposing | GA89 |
| Markell Colemon | Iowa School Mental Health Alliance | Opposing | GA89 |
| Eric Gookin | Iowa Secretary of State | Undecided | GA89 |
| Ben Hammes | Master Builders of Iowa | Opposing | GA89 |
| Julie Smith | Master Builders of Iowa | Opposing | GA89 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA89 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA89 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA89 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA89 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA89 |
| Dane Schumann | North Central States Regional Council of Carpenters | Undecided | GA89 |
| Frederick Haskins | Patterson Law Firm LLP | Opposing | GA89 |
| Carlos Rodriguez Rosa | Please Pass the Love | Opposing | GA89 |
| Markell Colemon | Please Pass the Love | Opposing | GA89 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA89 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA89 |
| Kelli Harrison | UAW Region 4 | Opposing | GA89 |
| Karl Schilling | United Professionals/UE | Opposing | GA89 |
| Brandon Geib | Wellmark, Inc. | Undecided | GA89 |
| Scott Sundstrom | Wellmark, Inc. | Undecided | GA89 |