| Chaney Yeast | Blank Childrens Hospital | Opposing | GA91 |
| Jacob Schrader | Central Iowa Water Works | Undecided | GA91 |
| Logan Murray | Central Iowa Water Works | Undecided | GA91 |
| Sydney Gangestad | Central Iowa Water Works | Undecided | GA91 |
| Jacob Schrader | Delta Dental of Iowa | Opposing | GA91 |
| Logan Murray | Delta Dental of Iowa | Opposing | GA91 |
| Ryan Moon | Delta Dental of Iowa | Opposing | GA91 |
| Sydney Gangestad | Delta Dental of Iowa | Opposing | GA91 |
| Catherine Pollard | Des Moines Water Works | Undecided | GA91 |
| Nick Laning | Des Moines Water Works | Undecided | GA91 |
| Threase Harms | Des Moines Water Works | Undecided | GA91 |
| David Peck | Iowa Association of Municipal Utilities | Undecided | GA91 |
| Marc Beltrame | Iowa Association of Municipal Utilities | Undecided | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Seth Brown | Iowa Chapter-American Academy of Pediatrics | Opposing | GA91 |
| David Adelman | Iowa Dental Association | Opposing | GA91 |
| Frank Chiodo | Iowa Dental Association | Opposing | GA91 |
| Joshua Carpenter | Iowa Dental Association | Opposing | GA91 |
| Matt Hinch | Iowa Dental Association | Opposing | GA91 |
| Paige Thorson | Iowa Dental Association | Opposing | GA91 |
| Sara Allen | Iowa Dental Association | Opposing | GA91 |
| Jon Murphy | Iowa Dental Hygienists Association | Opposing | GA91 |
| Tom Cope | Iowa Dental Hygienists Association | Opposing | GA91 |
| Todd Coffelt | Iowa Dept. of Natural Resources | Undecided | 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 |
| Jefferson Fink | Iowa School Nurses Organization | Opposing | GA91 |
| Jim Obradovich | Iowa School Nurses Organization | Opposing | GA91 |
| Clair Lewis | Iowa Section American Water Works Association | Undecided | GA91 |
| Kate Walton | Iowa Section American Water Works Association | Undecided | GA91 |
| Matt Eide | Iowa Section American Water Works Association | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Opposing | GA91 |
| Beth Manley | Iowa State Association of Counties | Opposing | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA91 |
| David Scott | Iowa Water Well Association | Undecided | GA91 |
| John Strathman | VALOR Iowa | Supporting | GA91 |
| Clair Lewis | West Des Moines Water Works | Undecided | GA91 |
| Kate Walton | West Des Moines Water Works | Undecided | GA91 |
| Matt Eide | West Des Moines Water Works | Undecided | GA91 |