| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA88 |
| Gary Grant | BettermentRS | Supporting | GA88 |
| Larry Murphy | BettermentRS | Supporting | GA88 |
| Meghan Malloy | BettermentRS | Supporting | GA88 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA88 |
| Kristin Bauer | Board of Regents, State of Iowa | Undecided | GA88 |
| Mark Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA88 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Supporting | GA88 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Supporting | GA88 |
| Katie Rock | Center for Rural Affairs | Withdrawn | GA88 |
| Katie Rock | Center for Rural Affairs | Undecided | GA88 |
| MIke Delaney | Citizens For A Healthy Iowa | Supporting | GA88 |
| Mark Joyce | E. I. du Pont de Nemours and Company dba Corteva Agriscience | Undecided | GA88 |
| Dale Woolery | Governors Office of Drug Control Policy | Undecided | GA88 |
| Meghan Malloy | Heartland Hemp Co. | Supporting | GA88 |
| Robert Hartwig | Iowa Bankers Association | Undecided | GA88 |
| Sharon Presnall | Iowa Bankers Association | Undecided | GA88 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA88 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA88 |
| Kelly Meyers | Iowa County Attorneys Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa County Attorneys Association | Undecided | GA88 |
| Jake Swanson | Iowa Dept. of Agriculture | Supporting | GA88 |
| Sara Throener | Iowa Dept. of Inspections and Appeals | Undecided | GA88 |
| Chandlor Collins | Iowa Dept. of Public Safety | Undecided | GA88 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Gary Grant | Iowa Hemp Association | Supporting | GA88 |
| Larry Murphy | Iowa Hemp Association | Supporting | GA88 |
| Meghan Malloy | Iowa Hemp Association | Supporting | GA88 |
| R. Bruce Beeston | Iowa Hemp Industries Association | Supporting | GA88 |
| Jason Karimi | Iowa Patients For Medical Marijuana | Undecided | GA88 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA88 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA88 |
| Jim Henter | Iowa Retail Federation | Undecided | GA88 |
| Jim Obradovich | Iowa Society of Solid Waste Operations (ISOSWO) | Undecided | GA88 |
| Pete McRoberts | Iowa Society of Solid Waste Operations (ISOSWO) | Undecided | GA88 |
| Robert Mulqueen | Iowa Society of Solid Waste Operations (ISOSWO) | Undecided | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Supporting | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Supporting | GA88 |
| Carl Olsen | Iowans for Medical Marijuana | Supporting | GA88 |
| MIke Delaney | Izaak Walton League - Iowa Division | Supporting | GA88 |
| Christopher Nelson | Kemin Industries | Undecided | GA88 |
| Dane Schumann | Kemin Industries | Undecided | GA88 |
| Maddie Wilcox | Kemin Industries | Undecided | GA88 |
| Threase Harms | Kemin Industries | Undecided | GA88 |
| Jason Karimi | NORML ISU | Undecided | GA88 |
| Gary Grant | NUHemp Group | Supporting | GA88 |
| Larry Murphy | NUHemp Group | Supporting | GA88 |
| Meghan Malloy | NUHemp Group | Supporting | GA88 |
| MIke Delaney | Raccoon River Watershed Association | Supporting | GA88 |
| Jeffrey Boeyink | US Hemp Roundtable, Inc. | Supporting | GA88 |
| Jeffrey Boeyink | US Hemp Roundtable, Inc. | Undecided | GA88 |