| Jeff Smith | Agribusiness Association of Iowa | Supporting | GA87 |
| Jerry Fitzgerald | Agribusiness Association of Iowa | Supporting | GA87 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Supporting | GA87 |
| Matt Fitzgerald | Agribusiness Association of Iowa | Supporting | GA87 |
| Drew Kamp | Ames Chamber of Commerce | Supporting | GA87 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Christopher Riley | Archer Daniels Midland Company | Supporting | GA87 |
| Christopher Riley | Archer Daniels Midland Company | Undecided | GA87 |
| Jim Obradovich | Association of Regional Water Organizations | Undecided | GA87 |
| Dane Schumann | Des Moines Water Works | Undecided | GA87 |
| Emily Hockins | Des Moines Water Works | Undecided | GA87 |
| Threase Harms | Des Moines Water Works | Undecided | GA87 |
| Barry Gentry | Dubuque Area Chamber of Commerce | Undecided | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Undecided | GA87 |
| Steve Falck | Environmental Law and Policy Center | Undecided | GA87 |
| Andrea Woodard | Greater Des Moines Partnership | Supporting | GA87 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA87 |
| Brad Epperly | Greater Des Moines Partnership | Supporting | GA87 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA87 |
| Dustin Miller | Greater Des Moines Partnership | Supporting | GA87 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA87 |
| Joe Murphy | Greater Des Moines Partnership | Supporting | GA87 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA87 |
| Katie Graham | Greater Des Moines Partnership | Supporting | GA87 |
| Katie Graham | Greater Des Moines Partnership | Undecided | GA87 |
| Paula Dierenfeld | Greater Des Moines Partnership | Supporting | GA87 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA87 |
| Bob Ward | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Marty Ryan | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Stephanie Fawkes-Lee | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| William Steward | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA87 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA87 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Supporting | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Supporting | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA87 |
| John Stineman | Iowa Chamber Alliance | Supporting | GA87 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA87 |
| Katie Graham | Iowa Chamber Alliance | Supporting | GA87 |
| Katie Graham | Iowa Chamber Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Supporting | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA87 |
| Erica Blair | Iowa Citizens for Community Improvement Action Fund | Opposing | GA87 |
| Jeff Smith | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Matt Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Supporting | GA87 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA87 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA87 |
| Jennifer Dorman | Iowa Drainage District Association | Undecided | GA87 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA87 |
| John Torbert | Iowa Drainage District Association | Undecided | GA87 |
| Mona Bond | Iowa Drainage District Association | Undecided | GA87 |
| Jennifer Terry | Iowa Environmental Council | Undecided | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA87 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA87 |
| Emily Hockins | Iowa Farmers Union | Undecided | GA87 |
| Threase Harms | Iowa Farmers Union | Undecided | GA87 |
| Wes Peterson | Iowa Finance Authority | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Jeff Smith | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Matt Fitzgerald | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Tyler Bettin | Iowa Pork Producers Association (IPP) | Supporting | GA87 |
| Dane Schumann | Iowa Rivers Revival | Undecided | GA87 |
| Emily Hockins | Iowa Rivers Revival | Undecided | GA87 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA87 |
| Emily Piper | Iowa Rural Water Association | Supporting | GA87 |
| Carol Balvanz | Iowa Soybean Association | Supporting | GA87 |
| Jill Altringer | Iowa Soybean Association | Supporting | GA87 |
| Jon Murphy | Iowa Water Quality Association | Undecided | GA87 |
| Tom Cope | Iowa Water Quality Association | Undecided | GA87 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA87 |
| Dustin Miller | Iowa Water Well Association | Undecided | GA87 |
| Katie Graham | Iowa Water Well Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA87 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA87 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA87 |
| Ben Hammes | Master Builders of Iowa | Undecided | GA87 |
| Chad Kleppe | Master Builders of Iowa | Undecided | GA87 |
| Julie Smith | Master Builders of Iowa | Undecided | GA87 |
| Brad Epperly | Monsanto Company | Supporting | GA87 |
| Brad Epperly | Monsanto Company | Undecided | GA87 |
| Dustin Miller | Monsanto Company | Supporting | GA87 |
| Dustin Miller | Monsanto Company | Undecided | GA87 |
| Katie Graham | Monsanto Company | Supporting | GA87 |
| Katie Graham | Monsanto Company | Undecided | GA87 |
| Brian Johnson | Personal Interest-Brian Johnson | Undecided | GA87 |
| Emily Piper | Piper Jaffray | Undecided | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Henry Marquard | Quad Cities Chamber of Commerce | Undecided | GA87 |
| Emily Piper | Rathbun Regional Water Association | Supporting | GA87 |
| Brad Epperly | Resources Environmental Solutions | Undecided | GA87 |
| Dustin Miller | Resources Environmental Solutions | Undecided | GA87 |
| Katie Graham | Resources Environmental Solutions | Undecided | GA87 |
| Paula Dierenfeld | Resources Environmental Solutions | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Undecided | GA87 |
| Jennifer Dorman | The Nature Conservancy | Undecided | GA87 |
| Jim Carney | The Nature Conservancy | Undecided | GA87 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA87 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA87 |
| Gary Grant | Urban County Coalition | Undecided | GA87 |
| Larry Murphy | Urban County Coalition | Undecided | GA87 |
| Meghan Malloy | Urban County Coalition | Undecided | GA87 |