| MIke Delaney | Citizens For A Healthy Iowa | Supporting | GA86 |
| Jim Obradovich | Conservation Districts of Iowa | Supporting | GA86 |
| Jake Oeth | Des Moines Water Works | Undecided | GA86 |
| Kent Hartwig | Des Moines Water Works | Undecided | GA86 |
| Threase Harms | Des Moines Water Works | Undecided | GA86 |
| Marc Beltrame | Ducks Unlimited, Inc. | Supporting | GA86 |
| RG Schwarm | Ducks Unlimited, Inc. | Supporting | GA86 |
| Steve Falck | Environmental Law and Policy Center | Supporting | GA86 |
| Brad Epperly | Greater Des Moines Partnership | Supporting | GA86 |
| Paula Dierenfeld | Greater Des Moines Partnership | Supporting | GA86 |
| Scott Sundstrom | Greater Des Moines Partnership | Supporting | GA86 |
| Angela Davis | Hy-Vee, Inc. | Undecided | GA86 |
| Bill Wimmer | Hy-Vee, Inc. | 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 |
| Amy Campbell | Iowa Association of County Conservation Boards | Supporting | GA86 |
| Craig Patterson | Iowa Association of County Conservation Boards | Supporting | GA86 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Scott Sundstrom | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Tim Coonan | Iowa Association of Electric Cooperatives | Undecided | GA86 |
| Jessica Hyland | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Julie Smith | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Troy DeJoode | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Automobile Dealers Association | Undecided | GA86 |
| Brice Oakley | Iowa Bowhunters Association | Supporting | GA86 |
| Don Avenson | Iowa Bowhunters Association | Supporting | GA86 |
| Tom Cope | Iowa Bowhunters Association | Supporting | 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 |
| Brice Oakley | Iowa Chapter, American Society of Landscape Architects | Supporting | GA86 |
| Don Avenson | Iowa Chapter, American Society of Landscape Architects | Supporting | GA86 |
| Tom Cope | Iowa Chapter, American Society of Landscape Architects | Supporting | GA86 |
| Mike Heller | Iowa Conservation Alliance | Supporting | GA86 |
| Paula Feltner | Iowa Conservation Alliance | Supporting | GA86 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Matt Fitzgerald | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Supporting | GA86 |
| Tammie Krausman | Iowa Dept. of Natural Resources | Undecided | GA86 |
| Mikel Derby | Iowa Dept. of Transportation | Undecided | GA86 |
| Jim Obradovich | Iowa Environmental Council | Supporting | GA86 |
| Robert Mulqueen | Iowa Environmental Council | Supporting | GA86 |
| Don Petersen | Iowa Farm Bureau Federation | Opposing | GA86 |
| Marty Schwager | Iowa Farm Bureau Federation | Opposing | GA86 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA86 |
| Jake Oeth | Iowa Farmers Union | Supporting | GA86 |
| Kent Hartwig | Iowa Farmers Union | Supporting | GA86 |
| Threase Harms | Iowa Farmers Union | Supporting | GA86 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Grocery Industry Association | Undecided | GA86 |
| Craig Schoenfeld | Iowa Growth Project | Opposing | GA86 |
| James Piazza, Jr. | Iowa Independent Automobile Dealers Association | Undecided | GA86 |
| Dustin Miller | Iowa League of Cities | Supporting | GA86 |
| Robert Palmer | Iowa League of Cities | Supporting | GA86 |
| Amy Campbell | Iowa Natural Heritage Foundation | Supporting | GA86 |
| Craig Patterson | Iowa Natural Heritage Foundation | Supporting | GA86 |
| Marian Riggs | Iowa Natural Heritage Foundation | Supporting | GA86 |
| Patrick Snell | Iowa Natural Heritage Foundation | Supporting | GA86 |
| Jim Henter | Iowa Retail Federation | Undecided | GA86 |
| Jake Oeth | Iowa Rivers Revival | Supporting | GA86 |
| Kent Hartwig | Iowa Rivers Revival | Supporting | GA86 |
| Threase Harms | Iowa Rivers Revival | Supporting | GA86 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Scott Sundstrom | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Jill Altringer | Iowa Soybean Association | Supporting | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA86 |
| William Peterson | Iowa State Association of Counties | Supporting | GA86 |
| Mike Heller | Iowa State Snowmobile Association | Supporting | GA86 |
| Paula Feltner | Iowa State Snowmobile Association | Supporting | GA86 |
| Jennifer Kingland | Iowa Taxpayers Association | Undecided | GA86 |
| Charlotte Eby | Iowa Water and Land Legacy | Supporting | GA86 |
| Jeffrey Boeyink | Iowa Water and Land Legacy | Supporting | GA86 |
| Jeffrey Boeyink | Iowa Water and Land Legacy | Undecided | GA86 |
| Ernie Adkison | Iowans for Tax Relief | Opposing | GA86 |
| Robert Solt | Iowans for Tax Relief | Opposing | GA86 |
| MIke Delaney | Izaak Walton League - Iowa Division | Supporting | GA86 |
| John Pederson | Kum and Go, L.C. | Undecided | GA86 |
| Laura Book | Kum and Go, L.C. | Undecided | GA86 |
| Matt Eide | Kum and Go, L.C. | Undecided | GA86 |
| Kristin Failor | National Federation of Independent Business (NFIB /IA) | Opposing | GA86 |
| Jamie Cashman | Pheasants Forever, Inc. and Affiliate Councils and Chapters | Supporting | GA86 |
| Lucas Beenken | Pheasants Forever, Inc. and Affiliate Councils and Chapters | Supporting | GA86 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| MIke Delaney | Raccoon River Watershed Association | Supporting | GA86 |
| Doug Struyk | The Nature Conservancy | Supporting | GA86 |
| George Appleby | The Nature Conservancy | Supporting | GA86 |
| Jennifer Tyler | The Nature Conservancy | Supporting | GA86 |
| Jim Carney | The Nature Conservancy | Supporting | GA86 |
| Kristin Aschenbrenner | The Nature Conservancy | Supporting | GA86 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA86 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA86 |
| Jake Oeth | YMCA State Alliance | Supporting | GA86 |
| Kent Hartwig | YMCA State Alliance | Supporting | GA86 |
| Threase Harms | YMCA State Alliance | Supporting | GA86 |