| Jerry Fitzgerald | Agribusiness Association of Iowa | Opposing | GA86 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Opposing | GA86 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Opposing | GA86 |
| Drew Klein | Americans For Prosperity | Undecided | GA86 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | 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 |
| Jim Obradovich | Conservation Districts of Iowa | Undecided | GA86 |
| Dane Schumann | Des Moines Water Works | Undecided | GA86 |
| Emily Hockins | Des Moines Water Works | Undecided | GA86 |
| Threase Harms | Des Moines Water Works | Undecided | GA86 |
| Josh Mandelbaum | Environmental Law and Policy Center | Undecided | GA86 |
| Steve Falck | Environmental Law and Policy Center | Undecided | GA86 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA86 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA86 |
| Joseph Jones | Greater Des Moines Partnership | Undecided | GA86 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA86 |
| Scott Sundstrom | Greater Des Moines Partnership | Undecided | GA86 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA86 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Marty Ryan | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Peggy Aguilar | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Stephanie Fawkes-Lee | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| William Steward | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA86 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA86 |
| Brad Epperly | Iowa Broadcasters Association | Opposing | GA86 |
| Paula Dierenfeld | Iowa Broadcasters Association | Opposing | GA86 |
| Scott Sundstrom | Iowa Broadcasters Association | Opposing | GA86 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA86 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA86 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA86 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA86 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA86 |
| Scott Sundstrom | Iowa Chamber Alliance | Undecided | GA86 |
| Neila Seaman | Iowa Chapter of Sierra Club | Supporting | GA86 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Opposing | GA86 |
| Matt Gronewald | Iowa Dept. of Agriculture | Undecided | GA86 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA86 |
| Deborah Thompson | Iowa Dept. of Public Health | Undecided | GA86 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA86 |
| George Appleby | Iowa Drainage District Association | Undecided | GA86 |
| Jennifer Tyler | Iowa Drainage District Association | Undecided | GA86 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA86 |
| John Torbert | Iowa Drainage District Association | Undecided | GA86 |
| Mona Bond | Iowa Drainage District Association | Undecided | GA86 |
| Eric Bradley | Iowa Environmental Health Association | Undecided | GA86 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA86 |
| Emily Hockins | Iowa Farmers Union | Undecided | GA86 |
| Threase Harms | Iowa Farmers Union | Undecided | GA86 |
| Dustin Miller | Iowa League of Cities | Undecided | GA86 |
| Robert Palmer | Iowa League of Cities | Undecided | GA86 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA86 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | GA86 |
| Brad Epperly | Iowa Newspaper Association | Opposing | GA86 |
| Paula Dierenfeld | Iowa Newspaper Association | Opposing | GA86 |
| Scott Sundstrom | Iowa Newspaper Association | Opposing | GA86 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Matt Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Tyler Bettin | Iowa Pork Producers Association (IPP) | Undecided | GA86 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA86 |
| Jill Altringer | Iowa Soybean Association | Undecided | GA86 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA86 |
| Gary Grant | Lake Delhi Combined Water Quality & Recreational Facility District | Undecided | GA86 |
| Larry Murphy | Lake Delhi Combined Water Quality & Recreational Facility District | Undecided | GA86 |
| Meghan Malloy | Lake Delhi Combined Water Quality & Recreational Facility District | Undecided | GA86 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA86 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA86 |
| Brad Epperly | Lewis and Clark Regional Water System | Undecided | GA86 |
| Paula Dierenfeld | Lewis and Clark Regional Water System | Undecided | GA86 |
| Scott Sundstrom | Lewis and Clark Regional Water System | Undecided | GA86 |
| Doug Struyk | The Nature Conservancy | Undecided | GA86 |
| George Appleby | The Nature Conservancy | Undecided | GA86 |
| Jennifer Tyler | The Nature Conservancy | Undecided | GA86 |
| Jim Carney | The Nature Conservancy | Undecided | GA86 |