| John Pederson | Area Education Agencies of Iowa | Undecided | GA85 |
| Matt Eide | Area Education Agencies of Iowa | Undecided | GA85 |
| Tom Lane | Area Education Agencies of Iowa | Undecided | GA85 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA85 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA85 |
| Brad Epperly | Federation of Iowa Insurers | Undecided | GA85 |
| Scott Sundstrom | Federation of Iowa Insurers | Undecided | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA85 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA85 |
| Scott Sundstrom | Iowa Association of Electric Cooperatives | Undecided | GA85 |
| Tim Coonan | Iowa Association of Electric Cooperatives | Undecided | GA85 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Automobile Dealers Association | Undecided | GA85 |
| Brad Epperly | Iowa Broadcasters Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Broadcasters Association | Undecided | GA85 |
| Brad Epperly | Iowa Collectors Association, Inc. | Undecided | GA85 |
| Scott Sundstrom | Iowa Collectors Association, Inc. | Undecided | GA85 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Supporting | GA85 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Grocery Industry Association | Undecided | GA85 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Newspaper Association | Undecided | GA85 |
| Brad Epperly | Iowa Propane Gas Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Propane Gas Association | Undecided | GA85 |
| Mike Heller | Iowa Retail Federation | Undecided | GA85 |
| Paula Feltner | Iowa Retail Federation | Undecided | GA85 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA85 |
| Scott Sundstrom | Iowa Society of Certified Public Accountants | Undecided | GA85 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA85 |
| Ed Wallace | Iowa Workforce Development | Supporting | GA85 |
| Brad Epperly | Monsanto Company | Undecided | GA85 |
| Scott Sundstrom | Monsanto Company | Undecided | GA85 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Undecided | GA85 |
| Andrea Rivera | United Auto Workers | Undecided | GA85 |