| 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 |
| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA87 |
| seth Johnson | American Heart Association | Undecided | GA87 |
| seth Johnson | American Heart Association | Withdrawn | GA87 |
| seth Johnson | American Heart Association | Opposing | GA87 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Katie Rock | Center for Rural Affairs | Opposing | GA87 |
| MIke Delaney | Citizens For A Healthy Iowa | Opposing | GA87 |
| Gary Grant | City of Cedar Rapids | Undecided | GA87 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA87 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA87 |
| Jim Obradovich | Conservation Districts of Iowa | Supporting | 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 |
| Billi Hunt | DuPont Businesses | Undecided | GA87 |
| Mark Joyce | DuPont Businesses | Undecided | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA87 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA87 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA87 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA87 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA87 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA87 |
| Paige Thorson | Greater Des Moines Partnership | Undecided | GA87 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA87 |
| Kellie Paschke | Heartland Car Wash Association | Undecided | GA87 |
| Troy Skinner | Heartland Car Wash Association | Undecided | GA87 |
| James Piazza, Jr. | Heavy Highway Contractors Association | Undecided | GA87 |
| Bob Rafferty | Iowa American Water Co. | Undecided | GA87 |
| Bob Ward | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Withdrawn | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Undecided | GA87 |
| Kathleen McQuillen | 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 |
| 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) | Undecided | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Supporting | GA87 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA87 |
| Linda Kinman | Iowa Association of Water Agencies | Supporting | GA87 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA87 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA87 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA87 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA87 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA87 |
| Paige Thorson | Iowa Chamber Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA87 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | 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 |
| Matt Gronewald | Iowa Dept. of Agriculture | Supporting | GA87 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Supporting | GA87 |
| Deborah Thompson | Iowa Dept. of Public Health | Undecided | GA87 |
| Doug Struyk | Iowa Drainage District Association | Supporting | GA87 |
| Doug Struyk | Iowa Drainage District Association | Undecided | GA87 |
| Jennifer Dorman | Iowa Drainage District Association | Supporting | GA87 |
| Jim Carney | Iowa Drainage District Association | Supporting | GA87 |
| Jim Carney | Iowa Drainage District Association | Undecided | GA87 |
| John Torbert | Iowa Drainage District Association | Supporting | GA87 |
| John Torbert | Iowa Drainage District Association | Undecided | GA87 |
| Mona Bond | Iowa Drainage District Association | Supporting | GA87 |
| Mona Bond | Iowa Drainage District Association | Undecided | GA87 |
| Shannon Henson | Iowa Drainage District Association | Supporting | GA87 |
| Shannon Henson | Iowa Drainage District Association | Undecided | GA87 |
| Jennifer Terry | Iowa Environmental Council | Opposing | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Opposing | GA87 |
| Don Petersen | Iowa Farm Bureau Federation | Supporting | GA87 |
| Marty Schwager | Iowa Farm Bureau Federation | Supporting | GA87 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA87 |
| Dane Schumann | Iowa Farmers Union | Opposing | GA87 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA87 |
| Emily Hockins | Iowa Farmers Union | Opposing | GA87 |
| Emily Hockins | Iowa Farmers Union | Undecided | GA87 |
| Threase Harms | Iowa Farmers Union | Opposing | GA87 |
| Threase Harms | Iowa Farmers Union | Undecided | GA87 |
| Wes Peterson | Iowa Finance Authority | Supporting | GA87 |
| Bobby Martens | Iowa Institute for Cooperatives | Supporting | GA87 |
| Katie Hall | Iowa Institute for Cooperatives | Supporting | GA87 |
| Matt Pruss | Iowa Institute for Cooperatives | Supporting | GA87 |
| Mike St. Clair | Iowa Institute for Cooperatives | Supporting | GA87 |
| Jim Obradovich | Iowa Lakes Regional Water | Supporting | GA87 |
| Alan Kemp | Iowa League of Cities | Supporting | GA87 |
| Lindsey McCune | Iowa League of Cities | Supporting | GA87 |
| Robert Palmer | Iowa League of Cities | Supporting | GA87 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Larry Lepper | Iowa Outdoor Partnership | Opposing | 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 | Opposing | GA87 |
| Emily Hockins | Iowa Rivers Revival | Opposing | GA87 |
| Threase Harms | Iowa Rivers Revival | Opposing | GA87 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA87 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Paige Thorson | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA87 |
| William Peterson | Iowa State Association of Counties | Supporting | GA87 |
| William Peterson | Iowa State Association of Counties | Undecided | GA87 |
| William Heckroth | Iowa State Association of County Supervisors | Supporting | GA87 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA87 |
| Dustin Miller | Iowa Water Well Association | Undecided | GA87 |
| Paige Thorson | Iowa Water Well Association | Undecided | GA87 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA87 |
| MIke Delaney | Izaak Walton League - Iowa Division | Opposing | GA87 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA87 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA87 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA87 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA87 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA87 |
| Lyle Krewson | Lutheran Services in IA, Inc. | Undecided | GA87 |
| Chad Kleppe | Master Builders of Iowa | Opposing | GA87 |
| Julie Smith | Master Builders of Iowa | Opposing | GA87 |
| Brad Epperly | Monsanto Company | Undecided | GA87 |
| Dustin Miller | Monsanto Company | Undecided | GA87 |
| Paige Thorson | Monsanto Company | Undecided | GA87 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA87 |
| MIke Delaney | Raccoon River Watershed Association | Opposing | GA87 |
| Emily Piper | Rathbun Regional Water Association | Undecided | GA87 |
| Brad Epperly | Resources Environmental Solutions | Undecided | GA87 |
| Dustin Miller | Resources Environmental Solutions | Undecided | GA87 |
| Paige Thorson | Resources Environmental Solutions | Undecided | GA87 |
| Paula Dierenfeld | Resources Environmental Solutions | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Undecided | GA87 |
| Jim Carney | The Nature Conservancy | Undecided | GA87 |
| Shannon Henson | The Nature Conservancy | Undecided | GA87 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA87 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA87 |
| Brad Epperly | University of Phoenix | Undecided | GA87 |
| Dustin Miller | University of Phoenix | Undecided | GA87 |
| Paige Thorson | University of Phoenix | Undecided | GA87 |
| Paula Dierenfeld | University of Phoenix | Undecided | GA87 |
| Gary Grant | Urban County Coalition | Undecided | GA87 |
| Larry Murphy | Urban County Coalition | Undecided | GA87 |
| Meghan Malloy | Urban County Coalition | Undecided | GA87 |
| Jim Obradovich | Utility Management Organizations of Iowa | Supporting | GA87 |
| Pete McRoberts | Utility Management Organizations of Iowa | Supporting | GA87 |