| Christopher Riley | Archer Daniels Midland Company | Supporting | GA88 |
| Scott Newhard | Associated General Contractors of Iowa | Supporting | GA88 |
| Clara Wulfsen | Department of Revenue | Undecided | GA88 |
| Tim Reilly | Department of Revenue | Undecided | GA88 |
| Kellie Paschke | FUELIowa (PMCI) | Opposing | GA88 |
| Troy Skinner | FUELIowa (PMCI) | Opposing | GA88 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Katie Graham | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Brad Epperly | Iowa Automobile Dealers Association | Undecided | GA88 |
| Dustin Miller | Iowa Automobile Dealers Association | Undecided | GA88 |
| Katie Graham | Iowa Automobile Dealers Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Automobile Dealers Association | Undecided | GA88 |
| Doug Struyk | Iowa Biodiesel Board | Supporting | GA88 |
| Jennifer Dorman | Iowa Biodiesel Board | Supporting | GA88 |
| Jim Carney | Iowa Biodiesel Board | Supporting | GA88 |
| David Adelman | Iowa Biotechnology Association | Supporting | GA88 |
| Frank Chiodo | Iowa Biotechnology Association | Supporting | GA88 |
| Jessica Hyland | Iowa Biotechnology Association | Supporting | GA88 |
| Matt Hinch | Iowa Biotechnology Association | Supporting | GA88 |
| Sara Allen | Iowa Biotechnology Association | Supporting | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA88 |
| Don Petersen | Iowa Farm Bureau Federation | Supporting | GA88 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA88 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA88 |
| Bobby Martens | Iowa Institute for Cooperatives | Supporting | GA88 |
| Katie Hall | Iowa Institute for Cooperatives | Supporting | GA88 |
| Mike St. Clair | Iowa Institute for Cooperatives | Supporting | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Supporting | GA88 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Supporting | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Supporting | GA88 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Katie Graham | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA88 |
| Doug Struyk | Iowa Soybean Association | Supporting | GA88 |
| Jennifer Dorman | Iowa Soybean Association | Supporting | GA88 |
| Jim Carney | Iowa Soybean Association | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA88 |
| William Peterson | Iowa State Association of Counties | Undecided | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA88 |
| Jake Ketzner | KWIK Trip, Inc. | Supporting | GA88 |
| Larry Blixt | KWIK Trip, Inc. | Supporting | GA88 |
| Matt McKinney | Kum and Go, L.C. | Supporting | GA88 |
| RG Schwarm | Kum and Go, L.C. | Supporting | GA88 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA88 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA88 |
| Meghan Malloy | Linn County Board of Supervisors | Undecided | GA88 |
| Christopher Rants | Magellan Midstream Partners | Opposing | GA88 |
| John Cacciatore | Magellan Midstream Partners | Opposing | GA88 |
| Kate Walton | POET, LLC | Supporting | GA88 |
| Matt Eide | POET, LLC | Supporting | GA88 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA88 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA88 |
| Kent Hartwig | Renewable Energy Group (REG) | Supporting | GA88 |
| Bob Rafferty | Truckstops of Iowa | Supporting | GA88 |
| Rachel Ong | Truckstops of Iowa | Supporting | GA88 |
| Gary Grant | Urban County Coalition | Undecided | GA88 |
| Larry Murphy | Urban County Coalition | Undecided | GA88 |
| Meghan Malloy | Urban County Coalition | Undecided | GA88 |
| Craig Schoenfeld | Valero Energy Corporation | Undecided | GA88 |