| Marcia Nichols | AFSCME IA Council 61 | Undecided | GA83 |
| Mitchell Stille | AFSCME IA Council 61 | Undecided | GA83 |
| Marty Ryan | American Civil Liberties Union of IA (ACLU-IA) | Opposing | GA83 |
| Brad Epperly | American General Finance | Undecided | GA83 |
| James West | American General Finance | Undecided | GA83 |
| Keith Luchtel | American General Finance | Undecided | GA83 |
| Paula Dierenfeld | American General Finance | Undecided | GA83 |
| Scott Sundstrom | American General Finance | Undecided | GA83 |
| Brad Epperly | American Insurance Assn. | Undecided | GA83 |
| James West | American Insurance Assn. | Undecided | GA83 |
| Keith Luchtel | American Insurance Assn. | Undecided | GA83 |
| Paula Dierenfeld | American Insurance Assn. | Undecided | GA83 |
| Scott Sundstrom | American Insurance Assn. | Undecided | GA83 |
| Brad Epperly | BNSF Railway Co. | Opposing | GA83 |
| James West | BNSF Railway Co. | Opposing | GA83 |
| Keith Luchtel | BNSF Railway Co. | Opposing | GA83 |
| Paula Dierenfeld | BNSF Railway Co. | Opposing | GA83 |
| Scott Sundstrom | BNSF Railway Co. | Opposing | GA83 |
| Brad Epperly | Deere & Company | Undecided | GA83 |
| James West | Deere & Company | Undecided | GA83 |
| Jason Francque | Deere & Company | Undecided | GA83 |
| Keith Luchtel | Deere & Company | Undecided | GA83 |
| Paula Dierenfeld | Deere & Company | Undecided | GA83 |
| Scott Sundstrom | Deere & Company | Undecided | GA83 |
| Thomas Iles | Deere & Company | Undecided | GA83 |
| Brad Epperly | Federation of IA Insurers | Undecided | GA83 |
| James West | Federation of IA Insurers | Undecided | GA83 |
| Paula Dierenfeld | Federation of IA Insurers | Undecided | GA83 |
| Scott Sundstrom | Federation of IA Insurers | Undecided | GA83 |
| John Gilliland | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Nicole Crain | IA. Assn. of Business and Industry (ABI) | Undecided | GA83 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| James West | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Undecided | GA83 |
| Brad Epperly | IA. Automobile Dealers Assn. | Undecided | GA83 |
| James West | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Automobile Dealers Assn. | Undecided | GA83 |
| Brad Epperly | IA. Broadcasters Assn. | Undecided | GA83 |
| James West | IA. Broadcasters Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Broadcasters Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Broadcasters Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Broadcasters Assn. | Undecided | GA83 |
| Adam Mason | IA. Citizens for Community Improvement | Supporting | GA83 |
| Charlie Smithson | IA. Ethics and Campaign Disclosure Board | Undecided | GA83 |
| Meghan Van | IA. Ethics and Campaign Disclosure Board | Undecided | GA83 |
| Janice Laue | IA. Federation of Labor, AFL-CIO | Supporting | GA83 |
| Ken Sagar | IA. Federation of Labor, AFL-CIO | Supporting | GA83 |
| Brad Epperly | IA. Grocery Industry Assn. | Undecided | GA83 |
| James West | IA. Grocery Industry Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Grocery Industry Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Undecided | GA83 |
| Brad Epperly | IA. Newspaper Assn. | Undecided | GA83 |
| James West | IA. Newspaper Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Newspaper Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Newspaper Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Newspaper Assn. | Undecided | GA83 |
| Brad Epperly | IA. Society of Certified Public Accountants | Opposing | GA83 |
| James West | IA. Society of Certified Public Accountants | Opposing | GA83 |
| Keith Luchtel | IA. Society of Certified Public Accountants | Opposing | GA83 |
| Paula Dierenfeld | IA. Society of Certified Public Accountants | Opposing | GA83 |
| Scott Sundstrom | IA. Society of Certified Public Accountants | Opposing | GA83 |
| Brad Hudson | IA. State Education Assn. | Undecided | GA83 |
| Jon Studer | IA. State Education Assn. | Undecided | GA83 |
| Brad Epperly | Johnson & Johnson | Undecided | GA83 |
| James West | Johnson & Johnson | Undecided | GA83 |
| Keith Luchtel | Johnson & Johnson | Undecided | GA83 |
| Paula Dierenfeld | Johnson & Johnson | Undecided | GA83 |
| Scott Sundstrom | Johnson & Johnson | Undecided | GA83 |
| Susan Zalenski | Johnson & Johnson | Undecided | GA83 |
| Brad Epperly | Monsanto Company | Undecided | GA83 |
| James West | Monsanto Company | Undecided | GA83 |
| Keith Luchtel | Monsanto Company | Undecided | GA83 |
| Paula Dierenfeld | Monsanto Company | Undecided | GA83 |
| Scott Sundstrom | Monsanto Company | Undecided | GA83 |