| Brice Oakley | Casey's General Stores | Supporting | GA84 |
| Don Avenson | Casey's General Stores | Supporting | GA84 |
| Tom Cope | Casey's General Stores | Supporting | GA84 |
| Dawn Carlson | Heartland Car Wash Assn. | Supporting | GA84 |
| Kellie Paschke | Heartland Car Wash Assn. | Supporting | GA84 |
| Troy Skinner | Heartland Car Wash Assn. | Supporting | 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 |
| Daniel Weiser | IA. Collision Repair Assn. | Undecided | GA84 |
| Robert Weiser | IA. Collision Repair Assn. | Undecided | 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 |
| Mike Heller | IA. Retail Federation | Undecided | GA84 |
| Paula Feltner | IA. Retail Federation | 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 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Supporting | GA84 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of IA | Supporting | GA84 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of IA | Supporting | GA84 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of IA | Supporting | GA84 |