| Jim Obradovich | Association of Regional Water Organizations | Undecided | GA89 |
| Robert Mulqueen | Association of Regional Water Organizations | Undecided | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Gary Grant | City of Cedar Rapids | Opposing | GA89 |
| Larry Murphy | City of Cedar Rapids | Opposing | GA89 |
| Meghan Malloy | City of Cedar Rapids | Opposing | GA89 |
| Sydney Gangestad | City of West Des Moines | Opposing | GA89 |
| Tim Coonan | City of West Des Moines | Opposing | GA89 |
| Nick Laning | Des Moines Water Works | Opposing | GA89 |
| Nick Laning | Des Moines Water Works | Undecided | GA89 |
| Threase Harms | Des Moines Water Works | Opposing | GA89 |
| Threase Harms | Des Moines Water Works | Undecided | GA89 |
| Michael Triplett | Greater Iowa Apartment Association | Supporting | GA89 |
| Hannah McDowell | Grow Clinton County | Opposing | GA89 |
| Nick Laning | Grow Clinton County | Opposing | GA89 |
| Threase Harms | Grow Clinton County | Opposing | GA89 |
| David Adelman | Hubbell Realty Company | Undecided | GA89 |
| Frank Chiodo | Hubbell Realty Company | Undecided | GA89 |
| Matt Hinch | Hubbell Realty Company | Undecided | GA89 |
| Sara Allen | Hubbell Realty Company | Undecided | GA89 |
| Bob Rafferty | Iowa American Water Co. | Undecided | GA89 |
| Rachel Ong | Iowa American Water Co. | Undecided | GA89 |
| Andrew Lietzow | Iowa Apartment Association (dba IaRPOA) | Supporting | GA89 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA89 |
| Alex Cutchey | Iowa Association of Municipal Utilities | Opposing | GA89 |
| Brad Epperly | Iowa Association of Municipal Utilities | Opposing | GA89 |
| Dustin Miller | Iowa Association of Municipal Utilities | Opposing | GA89 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA89 |
| Julie Smith | Iowa Association of Water Agencies | Opposing | GA89 |
| Jordan Oster | Iowa Environmental Council | Opposing | GA89 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA89 |
| Michael Schmidt | Iowa Environmental Council | Opposing | GA89 |
| Andrew Lietzow | Iowa Landlord Association | Supporting | GA89 |
| Alan Kemp | Iowa League of Cities | Opposing | GA89 |
| Daniel Stalder | Iowa League of Cities | Opposing | GA89 |
| Robert Palmer | Iowa League of Cities | Opposing | GA89 |
| Andrew Lietzow | Iowa Real Estate Investors Association | Supporting | GA89 |
| Emily Piper | Iowa Rural Water Association | Opposing | GA89 |
| Doug Struyk | Iowa State Bar Association | Opposing | GA89 |
| Jennifer Dorman | Iowa State Bar Association | Opposing | GA89 |
| Jim Carney | Iowa State Bar Association | Opposing | GA89 |
| Maison Bleam | Iowa Utilities Board | Undecided | GA89 |
| Jill Altringer | Landlords of Iowa | Supporting | GA89 |
| Larry Blixt | Urbandale Water Utility | Opposing | GA89 |