| 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 |
| Dane Schumann | Des Moines Water Works | Undecided | GA88 |
| Maddie Wilcox | Des Moines Water Works | Undecided | GA88 |
| Threase Harms | Des Moines Water Works | Undecided | GA88 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Supporting | GA88 |
| Mike Heller | Iowa Academy of Trial Lawyers | Withdrawn | GA88 |
| Mike Heller | Iowa Academy of Trial Lawyers | Supporting | GA88 |
| Paula Feltner | Iowa Academy of Trial Lawyers | 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 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA88 |
| Adam Mason | Iowa Citizens for Community Improvement Action Fund | Supporting | GA88 |
| Mike Heller | Iowa Conservation Alliance | Supporting | GA88 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA88 |
| Paula Feltner | Iowa Conservation Alliance | Supporting | GA88 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA88 |
| Adam Schnieders | Iowa Dept. of Natural Resources | Undecided | GA88 |
| Jon Tack | Iowa Dept. of Natural Resources | Undecided | GA88 |
| Amy McCoy | Iowa Dept. of Public Health | Undecided | GA88 |
| Cindy Lane | Iowa Environmental Council | Supporting | GA88 |
| Dane Schumann | Iowa Environmental Council | Supporting | GA88 |
| Dane Schumann | Iowa Environmental Council | Undecided | GA88 |
| Maddie Wilcox | Iowa Environmental Council | Supporting | GA88 |
| Maddie Wilcox | Iowa Environmental Council | Undecided | GA88 |
| Threase Harms | Iowa Environmental Council | Supporting | GA88 |
| Threase Harms | Iowa Environmental Council | Undecided | GA88 |
| Dane Schumann | Iowa Farmers Union | Supporting | GA88 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Supporting | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Supporting | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA88 |
| William Peterson | Iowa State Association of Counties | Undecided | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Undecided | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Undecided | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Undecided | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Undecided | GA88 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA88 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA88 |
| Jim Carney | Iowa State Bar Association | Undecided | GA88 |
| Steven Schoenebaum | Smithfield Foods, Inc. | Undecided | GA88 |