| Cyndi Pederson | Central Iowa Power Cooperative (CIPCO) | Undecided | GA87 |
| Doug Struyk | City of Iowa City | Undecided | GA87 |
| Jennifer Dorman | City of Iowa City | Undecided | GA87 |
| Jim Carney | City of Iowa City | Undecided | GA87 |
| Doug Struyk | City of Waukee | Undecided | GA87 |
| Jennifer Dorman | City of Waukee | Undecided | GA87 |
| Jim Carney | City of Waukee | Undecided | GA87 |
| Dane Schumann | Des Moines Water Works | Undecided | GA87 |
| Emily Hockins | Des Moines Water Works | Undecided | GA87 |
| Threase Harms | Des Moines Water Works | Undecided | GA87 |
| Dane Schumann | Grow Clinton County | Undecided | GA87 |
| Emily Hockins | Grow Clinton County | Undecided | GA87 |
| Threase Harms | Grow Clinton County | Undecided | GA87 |
| Kellie Paschke | Heartland Car Wash Association | Undecided | GA87 |
| Troy Skinner | Heartland Car Wash Association | Undecided | GA87 |
| Bob Rafferty | Iowa American Water Co. | Supporting | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Julie Smith | Iowa Association of Municipal Utilities | Undecided | GA87 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Undecided | GA87 |
| Bill Peard | Iowa Cable and Telecommunications Association | Undecided | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Emily Piper | Iowa Rural Water Association | Undecided | GA87 |
| Doug Struyk | Iowa State Bar Association | Undecided | GA87 |
| Jennifer Dorman | Iowa State Bar Association | Undecided | GA87 |
| Jim Carney | Iowa State Bar Association | Undecided | GA87 |
| Alexander Cutchey | Iowa Utilities Board | Undecided | GA87 |
| Anna Hyatt | Iowa Utilities Board | Undecided | GA87 |
| Geri Huser | Iowa Utilities Board | Undecided | GA87 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA87 |
| Nick Wagner | Iowa Utilities Board | Undecided | GA87 |
| Richard Lozier | Iowa Utilities Board | Undecided | GA87 |
| Doug Struyk | Mediacom Communications Corporation | Undecided | GA87 |
| Jennifer Dorman | Mediacom Communications Corporation | Undecided | GA87 |
| Jim Carney | Mediacom Communications Corporation | Undecided | GA87 |
| Larry Blixt | Urbandale Water Utility | Undecided | GA87 |