| Brad Epperly | BNSF Railway Co. | Undecided | GA86 |
| Paula Dierenfeld | BNSF Railway Co. | Undecided | GA86 |
| Scott Sundstrom | BNSF Railway Co. | Undecided | GA86 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA86 |
| Jake Oeth | Des Moines Water Works | Undecided | GA86 |
| Jake Oeth | Des Moines Water Works | Opposing | GA86 |
| Kent Hartwig | Des Moines Water Works | Undecided | GA86 |
| Kent Hartwig | Des Moines Water Works | Opposing | GA86 |
| Threase Harms | Des Moines Water Works | Undecided | GA86 |
| Threase Harms | Des Moines Water Works | Opposing | GA86 |
| Michael Triplett | Iowa Alliance of Surety Companies | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Rachel Geilenfeld | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Zach Dalluge | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA86 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA86 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA86 |
| Scott Sundstrom | Iowa Chapter, American Institute of Architects | Undecided | GA86 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA86 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA86 |
| Doug Struyk | Iowa Drainage District Association | Supporting | GA86 |
| George Appleby | Iowa Drainage District Association | Supporting | GA86 |
| Jennifer Tyler | Iowa Drainage District Association | Supporting | GA86 |
| Jim Carney | Iowa Drainage District Association | Supporting | GA86 |
| John Torbert | Iowa Drainage District Association | Supporting | GA86 |
| Mona Bond | Iowa Drainage District Association | Supporting | GA86 |
| Jim Obradovich | Iowa Environmental Council | Undecided | GA86 |
| Jake Oeth | Iowa Farmers Union | Undecided | GA86 |
| Kent Hartwig | Iowa Farmers Union | Undecided | GA86 |
| Threase Harms | Iowa Farmers Union | Undecided | GA86 |
| Brad Epperly | Iowa Newspaper Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Newspaper Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Newspaper Association | Undecided | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA86 |
| William Peterson | Iowa State Association of Counties | Undecided | GA86 |