| Brad Epperly | AIG-American International Companies | Undecided | GA84 |
| Keith Luchtel | AIG-American International Companies | Undecided | GA84 |
| Paula Dierenfeld | AIG-American International Companies | Undecided | GA84 |
| Scott Sundstrom | AIG-American International Companies | Undecided | GA84 |
| Ben Stone | American Civil Liberties Union of IA (ACLU-IA) | Undecided | GA84 |
| Rita Bettis Austen | American Civil Liberties Union of IA (ACLU-IA) | Undecided | GA84 |
| Brad Epperly | American Insurance Assn. | Undecided | GA84 |
| Keith Luchtel | American Insurance Assn. | Undecided | GA84 |
| Paula Dierenfeld | American Insurance Assn. | Undecided | GA84 |
| Scott Sundstrom | American Insurance Assn. | Undecided | GA84 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA84 |
| Keith Luchtel | BNSF Railway Co. | Undecided | GA84 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA84 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA84 |
| Brad Epperly | Federation of IA Insurers | Undecided | GA84 |
| Paula Dierenfeld | Federation of IA Insurers | Undecided | GA84 |
| Scott Sundstrom | Federation of IA Insurers | Undecided | GA84 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Brad Epperly | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Undecided | GA84 |
| Neila Seaman | IA. Chapter of Sierra Club | Supporting | GA84 |
| Adam Mason | IA. Citizens for Community Improvement Action Fund | Supporting | GA84 |
| Brad Epperly | IA. Grocery Industry Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Grocery Industry Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Undecided | GA84 |
| Brad Epperly | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Keith Luchtel | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Paula Dierenfeld | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Scott Sundstrom | IA. Society of Certified Public Accountants | Undecided | GA84 |
| Brad Epperly | Johnson & Johnson Services, Inc. | Undecided | GA84 |
| Keith Luchtel | Johnson & Johnson Services, Inc. | Undecided | GA84 |
| Paula Dierenfeld | Johnson & Johnson Services, Inc. | Undecided | GA84 |
| Scott Sundstrom | Johnson & Johnson Services, Inc. | Undecided | GA84 |
| Susan Zalenski | Johnson & Johnson Services, Inc. | Undecided | GA84 |
| Brad Epperly | Monsanto Company | Undecided | GA84 |
| Keith Luchtel | Monsanto Company | Undecided | GA84 |
| Scott Sundstrom | Monsanto Company | Undecided | GA84 |
| Sandra Simmons | Sierra Club of Iowa Chapter | Supporting | GA84 |