| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Opposing | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Opposing | GA90 |
| Doug Struyk | City of Iowa City | Opposing | GA90 |
| Jennifer Dorman | City of Iowa City | Opposing | GA90 |
| Jim Carney | City of Iowa City | Opposing | GA90 |
| Mike Owen | Common Good Iowa | Opposing | GA90 |
| Natalie Veldhouse | Common Good Iowa | Opposing | GA90 |
| Sean Finn | Common Good Iowa | Opposing | GA90 |
| Sheila Hansen | Common Good Iowa | Opposing | GA90 |
| Drew Kamp | Council Bluffs Chamber of Commerce | Opposing | GA90 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Undecided | GA90 |
| Bethany Niermeyer | Informed Choice Iowa | Supporting | GA90 |
| Connie Ryan | Interfaith Alliance of Iowa Action Fund | Opposing | GA90 |
| Brad Cranston | Iowa Baptists For Biblical Values | Supporting | GA90 |
| Larry Murphy | Iowa Catholic Conference | Supporting | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Opposing | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Opposing | GA90 |
| Barbra Solberg | Iowa City Area Business Partnership | Opposing | GA90 |
| Laura Hessburg | Iowa Coalition Against Domestic Violence | Opposing | GA90 |
| Becky Tayler | Iowa Safe Schools | Opposing | GA90 |
| Damian Thompson | Iowa Safe Schools | Opposing | GA90 |
| Carl Olsen | Iowans for Medical Marijuana | Supporting | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | Opposing | GA90 |
| Courtney Reyes | One Iowa | Opposing | GA90 |
| Keenan Crow | One Iowa | Opposing | GA90 |
| Courtney Reyes | One Iowa Action | Opposing | GA90 |
| Keenan Crow | One Iowa Action | Opposing | GA90 |
| Mazie Stilwell | Planned Parenthood Advocates of Iowa | Opposing | GA90 |
| Sydney Gangestad | Principal Financial Group | Opposing | GA90 |
| Tim Coonan | Principal Financial Group | Opposing | GA90 |
| Chuck Hurley | The Family Leader | Supporting | GA90 |
| Danny Carroll | The Family Leader | Supporting | GA90 |
| Rebekah Oleson | The Family Leader | Supporting | GA90 |
| Ryan Benn | The Family Leader | Supporting | GA90 |
| Chuck Hurley | The Family Leader Foundation | Supporting | GA90 |
| Danny Carroll | The Family Leader Foundation | Supporting | GA90 |
| Rebekah Oleson | The Family Leader Foundation | Supporting | GA90 |
| Ryan Benn | The Family Leader Foundation | Supporting | GA90 |