| Doug Struyk | Biosynthetic Technologies | Supporting | GA86 |
| George Appleby | Biosynthetic Technologies | Supporting | GA86 |
| Jennifer Tyler | Biosynthetic Technologies | Supporting | GA86 |
| Jim Carney | Biosynthetic Technologies | Supporting | GA86 |
| Shannon Henson | Biosynthetic Technologies | Supporting | GA86 |
| Bruce Rastetter | Board of Regents, State of Iowa | Undecided | GA86 |
| Joe Murphy | Board of Regents, State of Iowa | Undecided | GA86 |
| Katie Mulholland | Board of Regents, State of Iowa | Undecided | GA86 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA86 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA86 |
| Robert Donley | Board of Regents, State of Iowa | Undecided | GA86 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Myron Linn | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| David Palmer | Iowa Association of Community College Trustees (IACCT) | Undecided | GA86 |
| John Schmaltz | Iowa Association of Community College Trustees (IACCT) | Undecided | GA86 |
| Doug Struyk | Iowa Biodiesel Board | Supporting | GA86 |
| George Appleby | Iowa Biodiesel Board | Supporting | GA86 |
| Jennifer Tyler | Iowa Biodiesel Board | Supporting | GA86 |
| Jim Carney | Iowa Biodiesel Board | Supporting | GA86 |
| Shannon Henson | Iowa Biodiesel Board | Supporting | GA86 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| Jill Altringer | Iowa Soybean Association | Supporting | GA86 |
| Cindy Schulte | Iowa Valley Community College District | Undecided | GA86 |
| Kent Hartwig | Renewable Energy Group (REG) | Supporting | GA86 |
| Scott Hedderich | Renewable Energy Group (REG) | Supporting | GA86 |