| Alex Drzycimski | AFSCME Iowa Council 61 | Undecided | GA87 |
| Morgan Miller | AFSCME Iowa Council 61 | Undecided | GA87 |
| Bruce Rastetter | Board of Regents, State of Iowa | Undecided | GA87 |
| Katie Mulholland | Board of Regents, State of Iowa | Undecided | GA87 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA87 |
| Kristin Failor | Board of Regents, State of Iowa | Undecided | GA87 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA87 |
| Robert Donley | Board of Regents, State of Iowa | Undecided | GA87 |
| Jim Obradovich | Coalition for Iowa Woodlands and Trees | Supporting | 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 |
| Dane Schumann | Easter Seals Iowa | Supporting | GA87 |
| Emily Hockins | Easter Seals Iowa | Supporting | GA87 |
| Threase Harms | Easter Seals Iowa | Supporting | GA87 |
| Jim Obradovich | Hungry Canyons Alliance | Supporting | GA87 |
| Pete McRoberts | Hungry Canyons Alliance | Supporting | GA87 |
| Robert Mulqueen | Hungry Canyons Alliance | 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 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA87 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA87 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA87 |
| Doug Struyk | 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 |
| Shannon Henson | Iowa Drainage District Association | Undecided | 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 |
| Emily Hockins | Iowa Farmers Union | Opposing | GA87 |
| Threase Harms | Iowa Farmers Union | Opposing | GA87 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | 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 | Undecided | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA87 |
| William Peterson | Iowa State Association of Counties | Undecided | GA87 |
| Mike Heller | Iowa State Snowmobile Association | Undecided | GA87 |
| Paula Feltner | Iowa State Snowmobile Association | Undecided | GA87 |
| Doug Struyk | Iowa Veterinary Medical Association | Supporting | GA87 |
| Jim Carney | Iowa Veterinary Medical Association | Supporting | GA87 |
| Shannon Henson | Iowa Veterinary Medical Association | Supporting | GA87 |
| John Pederson | Iowa Wine Growers Association | Supporting | GA87 |
| Kate Walton | Iowa Wine Growers Association | Supporting | GA87 |
| Matt Eide | Iowa Wine Growers Association | Supporting | GA87 |
| Amy Campbell | League of Women Voters of Iowa | Undecided | GA87 |
| Craig Patterson | League of Women Voters of Iowa | Undecided | GA87 |
| Lyle Krewson | Lutheran Services in IA, Inc. | Undecided | GA87 |
| Brad Epperly | Monsanto Company | Undecided | GA87 |
| Dustin Miller | Monsanto Company | Undecided | GA87 |
| Paige Thorson | Monsanto Company | Undecided | GA87 |
| Amy Campbell | Polk County - Board of Supervisors | Undecided | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Emily Piper | Rathbun Regional Water Association | Undecided | GA87 |
| Christopher Rants | State Police Officers Council | Undecided | GA87 |
| John Cacciatore | State Police Officers Council | 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 |