| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA88 |
| Gary Grant | BettermentRS | Undecided | GA88 |
| Larry Murphy | BettermentRS | Undecided | GA88 |
| Meghan Malloy | BettermentRS | Undecided | 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 |
| 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 |
| Kellie Paschke | Greenwich Biosciences, Inc. | Undecided | GA88 |
| Troy Skinner | Greenwich Biosciences, Inc. | 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 |
| Sara Throener | Iowa Dept. of Inspections and Appeals | Undecided | GA88 |
| Amy McCoy | Iowa Dept. of Public Health | Undecided | GA88 |
| Dane Schumann | Iowa Farmers Union | Supporting | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Supporting | GA88 |
| Threase Harms | Iowa Farmers Union | Supporting | GA88 |
| Gary Grant | Iowa Hemp Association | Supporting | GA88 |
| Gary Grant | Iowa Hemp Association | Withdrawn | GA88 |
| Gary Grant | Iowa Hemp Association | Undecided | GA88 |
| Larry Murphy | Iowa Hemp Association | Supporting | GA88 |
| Larry Murphy | Iowa Hemp Association | Withdrawn | GA88 |
| Larry Murphy | Iowa Hemp Association | Undecided | GA88 |
| Meghan Malloy | Iowa Hemp Association | Supporting | GA88 |
| Meghan Malloy | Iowa Hemp Association | Withdrawn | GA88 |
| Meghan Malloy | Iowa Hemp Association | Undecided | GA88 |
| R. Bruce Beeston | Iowa Hemp Industries Association | Supporting | GA88 |
| Jason Karimi | Iowa Patients For Medical Marijuana | Supporting | GA88 |
| Kellie Paschke | Iowa Peace Officers Association | Undecided | GA88 |
| Troy Skinner | Iowa Peace Officers Association | Undecided | GA88 |
| Kelly Meyers | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Susan Cameron Daemen | Iowa State Sheriffs' & Deputies' Association | Undecided | GA88 |
| Carl Olsen | Iowans for Medical Marijuana | 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 | Supporting | GA88 |
| Gary Grant | NUHemp Group | Supporting | GA88 |
| Gary Grant | NUHemp Group | Withdrawn | GA88 |
| Gary Grant | NUHemp Group | Undecided | GA88 |
| Larry Murphy | NUHemp Group | Supporting | GA88 |
| Larry Murphy | NUHemp Group | Withdrawn | GA88 |
| Larry Murphy | NUHemp Group | Undecided | GA88 |
| Meghan Malloy | NUHemp Group | Supporting | GA88 |
| Meghan Malloy | NUHemp Group | Withdrawn | GA88 |
| Meghan Malloy | NUHemp Group | Undecided | GA88 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA88 |
| Jeffrey Boeyink | US Hemp Roundtable, Inc. | Supporting | GA88 |
| Taylor McDonald | US Hemp Roundtable, Inc. | Supporting | GA88 |
| R. Bruce Beeston | Veterans National Recovery Center | Supporting | GA88 |