| Jim Obradovich | Association of Regional Water Organizations | Opposing | GA89 |
| Robert Mulqueen | Association of Regional Water Organizations | Opposing | GA89 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA89 |
| Emilee Harris-Puricelli | Des Moines Water Works | Opposing | GA89 |
| Nick Laning | Des Moines Water Works | Opposing | GA89 |
| Threase Harms | Des Moines Water Works | Opposing | GA89 |
| Jake Ketzner | Eastlake Partnership | Supporting | GA89 |
| Angela Caulk | Greater Iowa Apartment Association | Supporting | GA89 |
| Angela Caulk | Greater Iowa Apartment Association | Undecided | GA89 |
| Michael Triplett | Greater Iowa Apartment Association | Supporting | GA89 |
| Noah Tabor | Greater Iowa Apartment Association | Supporting | GA89 |
| Noah Tabor | Greater Iowa Apartment Association | Undecided | GA89 |
| Bob Rafferty | Iowa American Water Co. | Undecided | GA89 |
| Lon Anderson | Iowa American Water Co. | Undecided | GA89 |
| Nick Laning | 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 |
| Jennifer Kingland | Iowa Association of Realtors | Undecided | GA89 |
| Julie Smith | Iowa Association of Water Agencies | Opposing | GA89 |
| Lynn Hicks | Iowa Attorney General Dept. of Justice | Opposing | GA89 |
| Nathan Blake | Iowa Attorney General Dept. of Justice | Opposing | GA89 |
| Andrew Lietzow | Iowa Landlord Association | Supporting | GA89 |
| Andy Conlin | Iowa Manufactured Housing Association | Supporting | GA89 |
| Andrew Lietzow | Iowa Real Estate Investors Association | Supporting | GA89 |
| Emily Piper | Iowa Rural Water Association | Opposing | GA89 |
| Geri Huser | Iowa Utilities Board | Undecided | GA89 |
| Maison Bleam | Iowa Utilities Board | Undecided | GA89 |
| Jill Altringer | Landlords of Iowa | Supporting | GA89 |
| Onnalee Gettler | MidAmerican Energy Company | Undecided | GA89 |