| Cal Hultman | Alliance of Automobile Manufacturers | Undecided | GA83 |
| Mary Hultman | Alliance of Automobile Manufacturers | Undecided | GA83 |
| Michael Triplett | Alliance of Automobile Manufacturers | Undecided | GA83 |
| Marc Beltrame | Allied Insurance | 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 |
| Nicole Woodroffe | Annett Holdings | Undecided | GA83 |
| Robert Weiser | Annett Holdings | Undecided | GA83 |
| Nicole Woodroffe | CRST International | Undecided | GA83 |
| Robert Weiser | CRST International | Undecided | GA83 |
| Laverne Schroeder | IA. American Legion | 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 |
| Joe Kelly | IA. County Attorneys Assn. | Opposing | GA83 |
| Susan Cameron Daemen | IA. County Attorneys Assn. | Opposing | GA83 |
| Ross Loder | IA. Dept. of Public Safety | Undecided | GA83 |
| Cal Hultman | IA. Emergency Medical Services Assn. | Supporting | GA83 |
| Mary Hultman | IA. Emergency Medical Services Assn. | Supporting | GA83 |
| Michael Triplett | IA. Emergency Medical Services Assn. | 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 |
| Betty Lord-Dinan | IA. Nurses Assn. | Undecided | GA83 |
| Linda Goeldner | IA. Nurses Assn. | Undecided | GA83 |
| Brad Epperly | IA. Propane Gas Assn. | Undecided | GA83 |
| James West | IA. Propane Gas Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Propane Gas Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Propane Gas Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Propane Gas Assn. | Undecided | GA83 |
| Brad Epperly | IA. Society of Certified Public Accountants | Undecided | GA83 |
| James West | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Keith Luchtel | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Paula Dierenfeld | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Scott Sundstrom | IA. Society of Certified Public Accountants | Undecided | GA83 |
| Mike Heller | IA. State Police Assn. | Supporting | GA83 |
| Paula Feltner | IA. State Police Assn. | Supporting | GA83 |
| Susan Cameron Daemen | IA. State Sheriffs' & Deputies' Assn. | Undecided | GA83 |
| Marc Beltrame | Nationwide Agribusiness | Undecided | GA83 |
| Marc Beltrame | Nationwide Mutual Ins. Co. | Undecided | GA83 |
| Craig Walter | State Farm Insurance | Undecided | GA83 |
| Mark Smith | State Public Defender's Office | Undecided | GA83 |
| Nicole Woodroffe | Trans IA | Undecided | GA83 |
| Robert Weiser | Trans IA | Undecided | GA83 |