| Melissa Speed | AFSCME Council 61 | Undecided | GA91 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Clare Gill | Dubuque Area Chamber of Commerce | Undecided | GA91 |
| Nick Laning | IBEW Iowa State Conference | Undecided | GA91 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA91 |
| Jefferson Fink | Iowa Association of Building Officials | Undecided | GA91 |
| Jim Obradovich | Iowa Association of Building Officials | Undecided | GA91 |
| Clair Lewis | Iowa Association of Community College Trustees | Undecided | GA91 |
| Emily Shields | Iowa Association of Community College Trustees | Undecided | GA91 |
| Kate Walton | Iowa Association of Community College Trustees | Undecided | GA91 |
| Matt Eide | Iowa Association of Community College Trustees | Undecided | GA91 |
| Ryan Roberts | Iowa Association of Community College Trustees | Undecided | GA91 |
| Brad Epperly | Iowa Business Council | Undecided | GA91 |
| Casey Nickel | Iowa Business Council | Undecided | GA91 |
| Dustin Miller | Iowa Business Council | Undecided | GA91 |
| Joe Murphy | Iowa Business Council | Undecided | GA91 |
| James Kersten | Iowa Central Community College | Undecided | GA91 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA91 |
| Casey Nickel | Iowa Chamber Alliance | Undecided | GA91 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA91 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Sarah Vanderploeg | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Peter Hird | Iowa Federation of Labor, AFL-CIO | Undecided | GA91 |
| Christopher Rants | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA91 |
| Justin Hupfer | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA91 |
| Dane Schumann | Mid-American Carpenters Regional Council | Opposing | GA91 |
| Christopher Rants | NECA - Iowa (NEC) | Undecided | GA91 |
| Justin Hupfer | NECA - Iowa (NEC) | Undecided | GA91 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Undecided | GA91 |
| Jake Friedrichsen | Plumbers and Steam Fitters Local 33 | Undecided | GA91 |
| Eric Goranson | Plumbing Heating & Cooling Contractors of IA | Supporting | GA91 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA91 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA91 |