| David Adelman | American Chemistry Council | Supporting | GA88 |
| Frank Chiodo | American Chemistry Council | Supporting | GA88 |
| Matt Hinch | American Chemistry Council | Supporting | GA88 |
| Sara Allen | American Chemistry Council | Supporting | GA88 |
| Scott Newhard | American Chemistry Council | Supporting | GA88 |
| Dane Schumann | Des Moines Water Works | Undecided | GA88 |
| Maddie Wilcox | Des Moines Water Works | Undecided | GA88 |
| Threase Harms | Des Moines Water Works | Undecided | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA88 |
| Adam Schnieders | Iowa Dept. of Natural Resources | Undecided | GA88 |
| Dane Schumann | Iowa Environmental Council | Undecided | GA88 |
| Maddie Wilcox | Iowa Environmental Council | Undecided | GA88 |
| Threase Harms | Iowa Environmental Council | Undecided | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Jim Obradovich | Iowa Society of Solid Waste Operations (ISOSWO) | Opposing | GA88 |
| Pete McRoberts | Iowa Society of Solid Waste Operations (ISOSWO) | Opposing | GA88 |
| Robert Mulqueen | Iowa Society of Solid Waste Operations (ISOSWO) | Opposing | GA88 |
| David Adelman | Metro Waste Authority | Undecided | GA88 |
| Frank Chiodo | Metro Waste Authority | Undecided | GA88 |
| Matt Hinch | Metro Waste Authority | Undecided | GA88 |
| Sara Allen | Metro Waste Authority | Undecided | GA88 |
| Kate Walton | POET, LLC | Undecided | GA88 |
| Matt Eide | POET, LLC | Undecided | GA88 |
| Mike Heller | Waste Management, Inc. | Undecided | GA88 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA88 |