| Maddie Wilcox | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Undecided | GA88 |
| Threase Harms | CAFE Iowa Citizen's Action Network (Clean Air for Everyone) | Undecided | GA88 |
| Sydney Gangestad | Cigar Association of America, Inc. | Undecided | GA88 |
| Tim Coonan | Cigar Association of America, Inc. | Undecided | GA88 |
| Kellie Paschke | FUELIowa (PMCI) | Undecided | GA88 |
| Troy Skinner | FUELIowa (PMCI) | Undecided | GA88 |
| Mike Heller | Father Flanagans Boys Home | Undecided | GA88 |
| Paula Feltner | Father Flanagans Boys Home | Undecided | GA88 |
| Dale Woolery | Governors Office of Drug Control Policy | Undecided | GA88 |
| Susie Sher | Governors Office of Drug Control Policy | Undecided | GA88 |
| Amy Campbell | Iowa Behavioral Health Association (IBHA) | Supporting | GA88 |
| Craig Patterson | Iowa Behavioral Health Association (IBHA) | Supporting | GA88 |
| James Kersten | Iowa Central Community College | Undecided | GA88 |
| Brian Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Gary Nims | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Rita Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA88 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA88 |
| Katie Graham | Iowa Grocery Industry Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Undecided | GA88 |
| Abhay Nadipuram | Iowa Hospital Association | Undecided | GA88 |
| Erin Cubit | Iowa Hospital Association | Undecided | GA88 |
| Kim Murphy | Iowa Hospital Association | Undecided | GA88 |
| Nicole Proesch | Iowa Hospital Association | Undecided | GA88 |
| Amy Campbell | Iowa Primary Care Association | Undecided | GA88 |
| Craig Patterson | Iowa Primary Care Association | Undecided | GA88 |
| Amy Campbell | Iowa Psychological Association | Undecided | GA88 |
| Craig Patterson | Iowa Psychological Association | Undecided | GA88 |
| Jim Henter | Iowa Retail Federation | Undecided | GA88 |
| Michael Triplett | Iowans For Alternatives To Smoking And Tobacco | Opposing | GA88 |
| Michael Triplett | Vapor Technology Association | Opposing | GA88 |
| Brandon Geib | Wellmark, Inc. | Supporting | GA88 |
| Scott Sundstrom | Wellmark, Inc. | Supporting | GA88 |