| Jim Obradovich | Association of Regional Water Organizations | Undecided | GA87 |
| Jim Obradovich | Commercial Fishing and Aquaculture Association | Undecided | GA87 |
| Pete McRoberts | Commercial Fishing and Aquaculture Association | Undecided | GA87 |
| Robert Mulqueen | Commercial Fishing and Aquaculture Association | Undecided | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Supporting | GA87 |
| Steve Falck | Environmental Law and Policy Center | Supporting | GA87 |
| Brad Epperly | Helena Agri-Enterprises, LLC | Undecided | GA87 |
| Dustin Miller | Helena Agri-Enterprises, LLC | Undecided | GA87 |
| Katie Graham | Helena Agri-Enterprises, LLC | Undecided | GA87 |
| Paula Dierenfeld | Helena Agri-Enterprises, LLC | Undecided | GA87 |
| Mona Bond | Iowa Alliance of Environmental Concerns | Undecided | GA87 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA87 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA87 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA87 |
| Jake Swanson | Iowa Dept. of Agriculture | Undecided | GA87 |
| Tammie Krausman | Iowa Dept. of Natural Resources | Undecided | GA87 |
| Jennifer Terry | Iowa Environmental Council | Supporting | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Supporting | GA87 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Brad Epperly | Monsanto Company | Undecided | GA87 |
| Dustin Miller | Monsanto Company | Undecided | GA87 |
| Katie Graham | Monsanto Company | Undecided | GA87 |
| Steven Schoenebaum | Syngenta Crop Protection | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Supporting | GA87 |
| Doug Struyk | The Nature Conservancy | Undecided | GA87 |
| Jennifer Dorman | The Nature Conservancy | Supporting | GA87 |
| Jennifer Dorman | The Nature Conservancy | Undecided | GA87 |
| Jim Carney | The Nature Conservancy | Supporting | GA87 |
| Jim Carney | The Nature Conservancy | Undecided | GA87 |
| Kristin Aschenbrenner | The Nature Conservancy | Supporting | GA87 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA87 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA87 |