| Larry Murphy | Agribusiness Assn. of IA | Undecided | GA83 |
| Larry Murphy | Agribusiness Assn. of IA | Supporting | GA83 |
| Mona Bond | Agribusiness Assn. of IA | Undecided | GA83 |
| David Scott | American Petroleum Institute | Opposing | GA83 |
| Nicole Woodroffe | Annett Holdings | Undecided | GA83 |
| Robert Weiser | Annett Holdings | Undecided | GA83 |
| Brad Epperly | BNSF Railway Co. | Undecided | GA83 |
| James West | BNSF Railway Co. | Undecided | GA83 |
| Keith Luchtel | BNSF Railway Co. | Undecided | GA83 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA83 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA83 |
| John Pederson | CN | Undecided | GA83 |
| Matt Eide | CN | Undecided | GA83 |
| Nicole Woodroffe | CRST International | Undecided | GA83 |
| Robert Weiser | CRST International | Undecided | GA83 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA83 |
| Brad Epperly | Deere & Company | Undecided | GA83 |
| James West | 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 |
| Jay Byers | Greater Des Moines Partnership | Undecided | GA83 |
| David Palmer | IA. Assn. of Community College Trustees (IACCT) | 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 |
| Gary Dickey | IA. Biodiesel Board | Supporting | GA83 |
| Gary Dickey | IA. Biodiesel Board | Undecided | GA83 |
| Amber Markham | IA. Farm Bureau Federation | Undecided | GA83 |
| Joe Johnson | IA. Farm Bureau Federation | Undecided | GA83 |
| Mark Salvador | IA. Farm Bureau Federation | Undecided | GA83 |
| Brad Epperly | IA. Grocery Industry Assn. | Opposing | GA83 |
| Brad Epperly | IA. Grocery Industry Assn. | Undecided | GA83 |
| James West | IA. Grocery Industry Assn. | Opposing | GA83 |
| James West | IA. Grocery Industry Assn. | Undecided | GA83 |
| Keith Luchtel | IA. Grocery Industry Assn. | Opposing | GA83 |
| Keith Luchtel | IA. Grocery Industry Assn. | Undecided | GA83 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Opposing | GA83 |
| Paula Dierenfeld | IA. Grocery Industry Assn. | Undecided | GA83 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Opposing | GA83 |
| Scott Sundstrom | IA. Grocery Industry Assn. | Undecided | GA83 |
| Alan Kemp | IA. League of Cities | Undecided | GA83 |
| Jessica Hyland | IA. League of Cities | Undecided | GA83 |
| Julie Smith | IA. League of Cities | Undecided | GA83 |
| Larry Pope | IA. League of Cities | Undecided | GA83 |
| Megan Peiffer | IA. League of Cities | Undecided | GA83 |
| David Scott | IA. Motor Truck Assn. | Opposing | GA83 |
| Jerry Fitzgerald | IA. Renewable Fuels Assn. (IRF) | Undecided | GA83 |
| Maggie Smith-Fitzgerald | IA. Renewable Fuels Assn. (IRF) | Undecided | GA83 |
| Mark Joyce | IA. Renewable Fuels Assn. (IRF) | Undecided | GA83 |
| Montgomery Shaw | IA. Renewable Fuels Assn. (IRF) | 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 |
| Larry Blixt | KWIK Trip, Inc. | Undecided | GA83 |
| Brice Oakley | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| Don Avenson | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Opposing | GA83 |
| John Pederson | Kum and Go | Opposing | GA83 |
| Matt Eide | Kum and Go | Opposing | GA83 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA83 |
| Robert Fowler | Personal | Opposing | GA83 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA83 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA83 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of IA | Opposing | GA83 |
| Nicole Woodroffe | Renewable Energy Group (REG) | Undecided | GA83 |
| Robert Weiser | Renewable Energy Group (REG) | Undecided | GA83 |
| Steve Falck | Renewable Energy Group (REG) | Supporting | GA83 |