| Amy Campbell | AARP Iowa | Undecided | GA86 |
| Brad Anderson | AARP Iowa | Undecided | GA86 |
| Craig Patterson | AARP Iowa | Undecided | GA86 |
| Kent Sovern | AARP Iowa | Undecided | GA86 |
| David Scott | American Water Works Association | Supporting | GA86 |
| Katherine Carlucci | City of Iowa City | Undecided | GA86 |
| Thomas Stanberry | City of Iowa City | Undecided | GA86 |
| Jake Oeth | Des Moines Water Works | Supporting | GA86 |
| Kent Hartwig | Des Moines Water Works | Supporting | GA86 |
| Threase Harms | Des Moines Water Works | Supporting | GA86 |
| Bob Rafferty | Iowa American Water Co. | Undecided | GA86 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Rachel Geilenfeld | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Zach Dalluge | Iowa Association of Business and Industry (ABI) | Undecided | GA86 |
| Jessica Hyland | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Julie Smith | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Troy DeJoode | Iowa Association of Municipal Utilities | Supporting | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Supporting | GA86 |
| Dustin Miller | Iowa League of Cities | Supporting | GA86 |
| Robert Palmer | Iowa League of Cities | Supporting | GA86 |
| Emily Piper | Iowa Rural Water Association | Supporting | GA86 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Scott Sundstrom | Iowa Society of Certified Public Accountants | Undecided | GA86 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA86 |
| Kristi Harshbarger | Iowa State Association of Counties | Undecided | GA86 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA86 |
| William Peterson | Iowa State Association of Counties | Undecided | GA86 |
| Brad Hudson | Iowa State Education Association | Undecided | GA86 |
| Melissa Peterson | Iowa State Education Association | Undecided | GA86 |
| Brad Epperly | Iowa Water Well Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Water Well Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Water Well Association | Undecided | GA86 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA86 |
| Emily Piper | Rathbun Regional Water Association | Supporting | GA86 |