| Drew Klein | Americans For Prosperity | Supporting | GA90 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Brad Epperly | Ames Regional Economic Alliance | Undecided | GA90 |
| Dustin Miller | Ames Regional Economic Alliance | Undecided | GA90 |
| Barbra Solberg | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| Christopher Rants | Center for Rural Affairs | Supporting | GA90 |
| John Cacciatore | Center for Rural Affairs | Supporting | GA90 |
| Johnathan Hladik | Center for Rural Affairs | Supporting | GA90 |
| Kate Hansen | Center for Rural Affairs | Supporting | GA90 |
| Doug Struyk | City of Des Moines | Opposing | GA90 |
| Emilee Harris-Puricelli | City of Des Moines | Opposing | GA90 |
| Jen Schulte | City of Des Moines | Opposing | GA90 |
| Jennifer Dorman | City of Des Moines | Opposing | GA90 |
| Jim Carney | City of Des Moines | Opposing | GA90 |
| Doug Struyk | City of Waukee | Opposing | GA90 |
| Jennifer Dorman | City of Waukee | Opposing | GA90 |
| Jim Carney | City of Waukee | Opposing | GA90 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA90 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA90 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA90 |
| Kellie Paschke | Iowa Cattlemen's Association | Undecided | GA90 |
| Kelly Meyers | Iowa Cattlemen's Association | Undecided | GA90 |
| Troy Skinner | Iowa Cattlemen's Association | Undecided | GA90 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA90 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA90 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Undecided | GA90 |
| Haley Hook | Iowa Department of Agriculture & Land Stewardship | Supporting | GA90 |
| Carrie Malone | Iowa Department of Health and Human Services | Undecided | GA90 |
| Dax Oberreuter | Iowa Department of Health and Human Services | Undecided | GA90 |
| Jancy Nielson | Iowa Department of Health and Human Services | Undecided | GA90 |
| Sara Throener | Iowa Dept. of Inspections and Appeals | Undecided | GA90 |
| Jefferson Fink | Iowa Environmental Health Association | Opposing | GA90 |
| Jefferson Fink | Iowa Environmental Health Association | Undecided | GA90 |
| Jim Obradovich | Iowa Environmental Health Association | Opposing | GA90 |
| Jim Obradovich | Iowa Environmental Health Association | Undecided | GA90 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matt Gronewald | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA90 |
| Chelsea Hoye | Iowa Farmers Union | Supporting | GA90 |
| Threase Harms | Iowa Farmers Union | Supporting | GA90 |
| Brad Epperly | Iowa Grocery Industry Association | Undecided | GA90 |
| Dustin Miller | Iowa Grocery Industry Association | Undecided | GA90 |
| Eric Goranson | Iowa Hotel & Lodging Association | Opposing | GA90 |
| Eric Goranson | Iowa Hotel & Lodging Association | Supporting | GA90 |
| Alan Kemp | Iowa League of Cities | Undecided | GA90 |
| Daniel Stalder | Iowa League of Cities | Undecided | GA90 |
| Robert Palmer | Iowa League of Cities | Undecided | GA90 |
| Emilee Zimmerman | Iowa Restaurant Association | Opposing | GA90 |
| Eric Goranson | Iowa Restaurant Association | Opposing | GA90 |
| Eric Goranson | Iowa Restaurant Association | Supporting | GA90 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA90 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA90 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA90 |
| William Peterson | Iowa State Association of Counties | Opposing | GA90 |
| Amy Campbell | Lutheran Services in IA, Inc. | Undecided | GA90 |
| Craig Patterson | Lutheran Services in IA, Inc. | Undecided | GA90 |
| John Hall | Marshalltown Area Chamber of Commerce | Undecided | GA90 |
| Sydney Gangestad | Polk County - Board of Supervisors | Undecided | GA90 |
| Tim Coonan | Polk County - Board of Supervisors | Undecided | GA90 |
| Brad Epperly | Quad Cities Chamber of Commerce | Undecided | GA90 |
| Dustin Miller | Quad Cities Chamber of Commerce | Undecided | GA90 |