| Jake Friedrichsen | Central Iowa Physicians | Opposing | GA91 |
| Lon Anderson | Central Iowa Physicians | Opposing | GA91 |
| Amy Campbell | Iowa Affiliate of the American College of Nurse-Midwives | Opposing | GA91 |
| Craig Patterson | Iowa Affiliate of the American College of Nurse-Midwives | Opposing | GA91 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA91 |
| John Davis | Iowa Association of Business and Industry (ABI) | Opposing | GA91 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA91 |
| Amy Campbell | Iowa Association of Rural Health Clinics | Opposing | GA91 |
| Craig Patterson | Iowa Association of Rural Health Clinics | Opposing | GA91 |
| Emily Piper | Iowa Biotechnology Association | Opposing | GA91 |
| Jessica Hyland | Iowa Biotechnology Association | Opposing | GA91 |
| Logan Shine | Iowa Biotechnology Association | Opposing | GA91 |
| Amy Campbell | Iowa Chapter of the National Association of Pediatric Nurse Practitioners | Opposing | GA91 |
| Craig Patterson | Iowa Chapter of the National Association of Pediatric Nurse Practitioners | Opposing | GA91 |
| Seth Brown | Iowa Chapter-American Academy of Pediatrics | Opposing | GA91 |
| Teresa Bomhoff | Iowa Integrated Health Planning and Advisory Council | Opposing | GA91 |
| Clair Lewis | Iowa Medical Society | Opposing | GA91 |
| Kate Walton | Iowa Medical Society | Opposing | GA91 |
| Matt Eide | Iowa Medical Society | Opposing | GA91 |
| Seth Brown | Iowa Medical Society | Opposing | GA91 |
| Amy Campbell | Iowa Nurse Practitioners Society | Opposing | GA91 |
| Craig Patterson | Iowa Nurse Practitioners Society | Opposing | GA91 |
| Clair Lewis | Iowa Pharmacy Association | Opposing | GA91 |
| Kate Walton | Iowa Pharmacy Association | Opposing | GA91 |
| Matt Eide | Iowa Pharmacy Association | Opposing | GA91 |
| Clair Lewis | Iowa Public Health Association | Opposing | GA91 |
| Kate Walton | Iowa Public Health Association | Opposing | GA91 |
| Matt Eide | Iowa Public Health Association | Opposing | GA91 |
| Dane Schumann | Kemin Industries | Opposing | GA91 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA91 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA91 |
| BRITTANY LUMLEY | Pharmaceutical Research and Manufacturers of America (PhRMA) | Opposing | GA91 |
| Courtney Craig | Pharmaceutical Research and Manufacturers of America (PhRMA) | Opposing | GA91 |
| Elliott Meyer | Pharmaceutical Research and Manufacturers of America (PhRMA) | Opposing | GA91 |
| Jeffrey Boeyink | Pharmaceutical Research and Manufacturers of America (PhRMA) | Opposing | GA91 |
| Seth Brown | Rheumatology Association of Iowa | Opposing | GA91 |