| Scott Newhard | Associated General Contractors of Iowa | Opposing | GA89 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA89 |
| Dustin Miller | BNSF Railway Co. | 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 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Opposing | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Withdrawn | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Opposing | GA89 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA89 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA89 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA89 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Opposing | GA89 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Opposing | GA89 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | 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 |
| Steffi Lee | Iowa Association of Business and Industry (ABI) | Opposing | GA89 |
| Emily Piper | Iowa Association of School Boards | Undecided | GA89 |
| Michelle Johnson | Iowa Association of School Boards | Undecided | GA89 |
| Phil Jeneary | Iowa Association of School Boards | Undecided | GA89 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA89 |
| Dustin Miller | Iowa Automobile Dealers Association | 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 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA89 |
| Dustin Miller | Iowa Collectors Association, Inc. | Undecided | GA89 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | 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 |
| 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 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA89 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA89 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA89 |
| Amy Campbell | Lutheran Services in IA, Inc. | Undecided | GA89 |
| Craig Patterson | Lutheran Services in IA, Inc. | Undecided | GA89 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA89 |
| Frederick Haskins | Patterson Law Firm LLP | Opposing | GA89 |
| Dave Daughton | Rural School Advocates of Iowa | Undecided | GA89 |
| Margaret Buckton | Rural School Advocates of Iowa | Undecided | GA89 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA89 |
| Jim Romar | Teamsters Local 238 | Opposing | GA89 |
| Kate Walton | Tyson Foods, Inc. | Undecided | GA89 |
| Madeleine Bradley | Tyson Foods, Inc. | Undecided | GA89 |
| Matt Eide | Tyson Foods, Inc. | Undecided | GA89 |
| Margaret Buckton | Urban Education Network of Iowa | Undecided | GA89 |