| Jackie Cale | American Cancer Society Cancer Action Network (ACS CAN) | Supporting | GA91 |
| Census Lo-liyong | American Heart Association | Supporting | GA91 |
| Justin Hupfer | American Heart Association | Supporting | GA91 |
| Kristina Hamilton | American Lung Association | Supporting | GA91 |
| Traci Kennedy | Americans for Nonsmokers' Rights | Supporting | GA91 |
| Michael Triplett | Black Hawk County Gaming Association | Undecided | GA91 |
| Mark Joyce | Boyd Gaming & Dubuque Diamond Jo & Diamond Jo Worth | Opposing | GA91 |
| Catherine Pollard | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Supporting | GA91 |
| Nick Laning | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Supporting | GA91 |
| Threase Harms | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Supporting | GA91 |
| Doug Struyk | Caesars Enterprise Services, LLC. | Opposing | GA91 |
| Jennifer Dorman | Caesars Enterprise Services, LLC. | Opposing | GA91 |
| Jim Carney | Caesars Enterprise Services, LLC. | Opposing | GA91 |
| Joe Hafley | Cease Iowa | Supporting | GA91 |
| David Adelman | Elite Casino Resorts, LLC | Opposing | GA91 |
| Frank Chiodo | Elite Casino Resorts, LLC | Opposing | GA91 |
| Matt Hinch | Elite Casino Resorts, LLC | Opposing | GA91 |
| Paige Thorson | Elite Casino Resorts, LLC | Opposing | GA91 |
| Sara Allen | Elite Casino Resorts, LLC | Opposing | GA91 |
| Scott Newhard | Elite Casino Resorts, LLC | Opposing | GA91 |
| Amy Campbell | Iowa Behavioral Health Association (IBHA) | Supporting | GA91 |
| Craig Patterson | Iowa Behavioral Health Association (IBHA) | Supporting | GA91 |
| Sara Throener | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Sarah Vanderploeg | Iowa Department of Inspections, Appeals, and Licensing | Undecided | GA91 |
| Mary Earnhardt | Iowa Gaming Association | Opposing | GA91 |
| Amy Campbell | Iowa Nurses Association | Supporting | GA91 |
| Craig Patterson | Iowa Nurses Association | Supporting | GA91 |
| Clair Lewis | Iowa Public Health Association | Supporting | GA91 |
| Kate Walton | Iowa Public Health Association | Supporting | GA91 |
| Clair Lewis | Iowa Society for Respiratory Care | Supporting | GA91 |
| Kate Walton | Iowa Society for Respiratory Care | Supporting | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Supporting | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA91 |
| Matt Eide | Iowa West Racing Association | Undecided | GA91 |
| Michael Triplett | Iowa West Racing Association | Undecided | GA91 |
| Jake Highfill | Penn Entertainment/Ameristar | Opposing | GA91 |
| Tony Phillips | Penn Entertainment/Ameristar | Opposing | GA91 |
| Kellie Paschke | Prairie Meadows Racetrack and Casino | Undecided | GA91 |
| Carrie Arblaster | The Campaign for Tobacco-Free Kids | Supporting | GA91 |
| Danny Carroll | The Family Leader | Supporting | GA91 |
| Ryan Benn | The Family Leader | Supporting | GA91 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA91 |
| Ryan Benn | The Family Leader Foundation | Supporting | GA91 |
| BRITTANY LUMLEY | Wild Rose Entertainment, LLC | Opposing | GA91 |
| Courtney Craig | Wild Rose Entertainment, LLC | Opposing | GA91 |
| Elliott Meyer | Wild Rose Entertainment, LLC | Opposing | GA91 |
| Jeffrey Boeyink | Wild Rose Entertainment, LLC | Opposing | GA91 |