| Robert Weiser | Annett Holdings | Undecided | GA86 |
| Sarah Reckling | Annett Holdings | Undecided | GA86 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA86 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA86 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA86 |
| Robert Weiser | CRST International | Undecided | GA86 |
| Sarah Reckling | CRST International | Undecided | GA86 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Undecided | GA86 |
| Sheila Hansen | Child and Family Policy Center | Undecided | GA86 |
| Brad Epperly | Federation of Iowa Insurers | Undecided | GA86 |
| Paula Dierenfeld | Federation of Iowa Insurers | Undecided | GA86 |
| Scott Sundstrom | Federation of Iowa Insurers | Undecided | GA86 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA86 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA86 |
| Emily Hockins | IBEW Iowa State Conference | Undecided | GA86 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA86 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Myron Linn | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Scott Sundstrom | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Tim Coonan | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Automobile Dealers Association | Undecided | GA86 |
| Brad Epperly | Iowa Broadcasters Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Broadcasters Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Broadcasters Association | Undecided | GA86 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA86 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA86 |
| Tom Chapman | Iowa Catholic Conference | Undecided | GA86 |
| Emily Schott | Iowa Citizens for Community Improvement Action Fund | Undecided | GA86 |
| Madeline Cano | Iowa Citizens for Community Improvement Action Fund | Undecided | GA86 |
| Madeline Cano | Iowa Citizens for Community Improvement Action Fund | Withdrawn | GA86 |
| Madeline Cano | Iowa Citizens for Community Improvement Action Fund | Supporting | GA86 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA86 |
| Paula Dierenfeld | Iowa Collectors Association, Inc. | Undecided | GA86 |
| Scott Sundstrom | Iowa Collectors Association, Inc. | Undecided | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA86 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Grocery Industry Association | Undecided | GA86 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Newspaper Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Newspaper Association | Undecided | GA86 |
| Brad Epperly | Iowa Propane Gas Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Propane Gas Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Propane Gas Association | Undecided | GA86 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Scott Sundstrom | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Mike Heller | Iowa State Police Association | Supporting | GA86 |
| Paula Feltner | Iowa State Police Association | Supporting | GA86 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA86 |
| Erich Schmidt | Laborers International Union of North America | Undecided | GA86 |
| Chad Kleppe | Master Builders of Iowa | Undecided | GA86 |
| Julie Smith | Master Builders of Iowa | Undecided | GA86 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA86 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA86 |
| Brad Epperly | Monsanto Company | Undecided | GA86 |
| Scott Sundstrom | Monsanto Company | Undecided | GA86 |
| Brian Johnson | NECA - Iowa (NEC) | Undecided | GA86 |
| Craig Walter | NECA - Iowa (NEC) | Undecided | GA86 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Undecided | GA86 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Undecided | GA86 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Undecided | GA86 |