| David Scott | American Council of Engineering Companies | Supporting | GA86 |
| David Scott | American Petroleum Institute | Supporting | GA86 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA86 |
| Brice Oakley | Casey's General Stores | Undecided | GA86 |
| Don Avenson | Casey's General Stores | Undecided | GA86 |
| Tom Cope | Casey's General Stores | Undecided | GA86 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA86 |
| Bill Wimmer | Hy-Vee, Inc. | Undecided | GA86 |
| Michael Triplett | Iowa Alliance of Surety Companies | Supporting | GA86 |
| Doug Struyk | Iowa Biodiesel Board | Undecided | GA86 |
| George Appleby | Iowa Biodiesel Board | Undecided | GA86 |
| Jennifer Tyler | Iowa Biodiesel Board | Undecided | GA86 |
| Jim Carney | Iowa Biodiesel Board | Undecided | GA86 |
| Shannon Henson | Iowa Biodiesel Board | Undecided | GA86 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Matt Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA86 |
| David Scott | Iowa Good Roads Association | Supporting | GA86 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Grocery Industry Association | Undecided | GA86 |
| Kayla Lyon | Iowa Institute for Cooperatives | Undecided | GA86 |
| Mike St. Clair | Iowa Institute for Cooperatives | Undecided | GA86 |
| David Scott | Iowa Motor Truck Association | Supporting | GA86 |
| Jim Obradovich | Iowa Public Airports Association | Undecided | GA86 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| Jim Obradovich | Iowa Shortline and Regional Railroad Association | Undecided | GA86 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Scott Sundstrom | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA86 |
| William Peterson | Iowa State Association of Counties | Supporting | GA86 |
| Larry Blixt | KWIK Trip, Inc. | Undecided | GA86 |
| Jason Bassett | Kum and Go, L.C. | Undecided | GA86 |
| John Pederson | Kum and Go, L.C. | Undecided | GA86 |
| Kate Walton | Kum and Go, L.C. | Undecided | GA86 |
| Kelly Nuckolls | Kum and Go, L.C. | Undecided | GA86 |
| Matt Eide | Kum and Go, L.C. | Undecided | GA86 |
| Mona Bond | Manatts Inc. | Undecided | GA86 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA86 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA86 |
| Dawn Carlson | Petroleum Marketers and Convenience Stores of Iowa | Supporting | GA86 |
| Kellie Paschke | Petroleum Marketers and Convenience Stores of Iowa | Supporting | GA86 |
| Troy Skinner | Petroleum Marketers and Convenience Stores of Iowa | Supporting | GA86 |
| Kent Hartwig | Renewable Energy Group (REG) | Undecided | GA86 |
| Scott Hedderich | Renewable Energy Group (REG) | Undecided | GA86 |