| Jerry Fitzgerald | Agribusiness Association of Iowa | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Agribusiness Association of Iowa | Undecided | GA85 |
| Marc Beltrame | Agribusiness Association of Iowa | Undecided | GA85 |
| Mark Joyce | Agribusiness Association of Iowa | Undecided | GA85 |
| Matt McKinney | Agribusiness Association of Iowa | Undecided | GA85 |
| Terry Harrmann | Alliant Energy Corporation | Undecided | GA85 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA85 |
| Katherine Carlucci | City of Iowa City | Undecided | GA85 |
| Thomas Stanberry | City of Iowa City | Undecided | GA85 |
| Katherine Carlucci | City of Waukee | Undecided | GA85 |
| Thomas Stanberry | City of Waukee | Undecided | GA85 |
| Linda Kinman | Des Moines Water Works | Supporting | GA85 |
| Angela Davis | Home Builders Association of Iowa | Undecided | GA85 |
| Bill Wimmer | Home Builders Association of Iowa | Undecided | GA85 |
| Kevin Condon | Iowa Association of Business and Industry (ABI) | Supporting | GA85 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA85 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA85 |
| Linda Kinman | Iowa Association of Water Agencies | Supporting | GA85 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA85 |
| Lindsay Phillips | Iowa Cattlemen's Association | Undecided | GA85 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA85 |
| Neila Seaman | Iowa Chapter of Sierra Club | Undecided | GA85 |
| Adam Mason | Iowa Citizens for Community Improvement Action Fund | Opposing | GA85 |
| David Goodner | Iowa Citizens for Community Improvement Action Fund | Opposing | GA85 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Opposing | GA85 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA85 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA85 |
| Jerry Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mark Joyce | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Mindy Poldberg | Iowa Corn Growers Association(ICG) | Undecided | GA85 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Supporting | GA85 |
| Jim Obradovich | Iowa Environmental Council | Undecided | GA85 |
| Jim Obradovich | Iowa Environmental Council | Opposing | GA85 |
| Robert Mulqueen | Iowa Environmental Council | Undecided | GA85 |
| Robert Mulqueen | Iowa Environmental Council | Opposing | GA85 |
| Dane Schumann | Iowa Farmers Union | Opposing | GA85 |
| Kent Hartwig | Iowa Farmers Union | Opposing | GA85 |
| Threase Harms | Iowa Farmers Union | Opposing | GA85 |
| Dustin Miller | Iowa League of Cities | Supporting | GA85 |
| Jessica Hyland | Iowa League of Cities | Supporting | GA85 |
| Julie Smith | Iowa League of Cities | Supporting | GA85 |
| Richard White | Iowa Limestone Producers Association | Supporting | GA85 |
| Brad Epperly | Iowa Newspaper Association | Opposing | GA85 |
| Paula Dierenfeld | Iowa Newspaper Association | Opposing | GA85 |
| Scott Sundstrom | Iowa Newspaper Association | Opposing | GA85 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA85 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA85 |
| Mark Joyce | Iowa Pork Producers Association (IPP) | Undecided | GA85 |
| Emily Piper | Iowa Rural Water Association | Supporting | GA85 |
| Hanna DeGroot | Iowa State Association of Counties | Undecided | GA85 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA85 |
| Linda Hinton | Iowa State Association of Counties | Undecided | GA85 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA85 |
| William Peterson | Iowa State Association of Counties | Undecided | GA85 |
| William Heckroth | Iowa State Association of County Supervisors | Undecided | GA85 |
| George Appleby | Iowa State Bar Association | Undecided | GA85 |
| Jennifer Tyler | Iowa State Bar Association | Undecided | GA85 |
| Jim Carney | Iowa State Bar Association | Undecided | GA85 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA85 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA85 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA85 |
| Brice Oakley | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA85 |
| Don Avenson | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA85 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA85 |
| Mona Bond | Manatts Inc. | Supporting | GA85 |
| Brian Johnson | NextEra Energy | Undecided | GA85 |
| Jamie Cashman | NextEra Energy | Undecided | GA85 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA85 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA85 |
| Brian Johnson | Polk County - Board of Supervisors | Undecided | GA85 |
| Jamie Cashman | Polk County - Board of Supervisors | Undecided | GA85 |
| George Appleby | SSAB (f/k/a IPSCO Steel) | Undecided | GA85 |
| Jennifer Tyler | SSAB (f/k/a IPSCO Steel) | Undecided | GA85 |
| Jim Carney | SSAB (f/k/a IPSCO Steel) | Undecided | GA85 |