| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA91 |
| Catherine Pollard | Infiltrator Water Technologies | Opposing | GA91 |
| Nick Laning | Infiltrator Water Technologies | Opposing | GA91 |
| Threase Harms | Infiltrator Water Technologies | Opposing | GA91 |
| Briana Kouma | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Jessica Mazour | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Undecided | GA91 |
| Cody Smith | Iowa Environmental Council | Undecided | GA91 |
| Colleen Fowle | Iowa Environmental Council | Undecided | GA91 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA91 |
| Michael Schmidt | Iowa Environmental Council | Undecided | GA91 |
| Jefferson Fink | Iowa Environmental Health Association | Undecided | GA91 |
| Jim Obradovich | Iowa Environmental Health Association | Undecided | GA91 |
| Andrea Woodard | Iowa State Association of Counties | Undecided | GA91 |
| Beth Manley | Iowa State Association of Counties | Undecided | GA91 |
| Jamie Cashman | Iowa State Association of Counties | Undecided | GA91 |
| Lucas Beenken | Iowa State Association of Counties | Undecided | GA91 |
| Christopher Rants | Lake Panorama Association | Undecided | GA91 |
| Jake Friedrichsen | Lake Panorama Association | Undecided | GA91 |
| Justin Hupfer | Lake Panorama Association | Undecided | GA91 |
| Kelsey Schott | Planet Care Biofilters | Supporting | GA91 |
| Matt McKinney | Planet Care Biofilters | Supporting | GA91 |
| RG Schwarm | Planet Care Biofilters | Supporting | GA91 |
| Gary Grant | Urban County Coalition | Undecided | GA91 |
| Larry Murphy | Urban County Coalition | Undecided | GA91 |
| Clair Lewis | West Des Moines Water Works | Undecided | GA91 |
| Kate Walton | West Des Moines Water Works | Undecided | GA91 |
| Matt Eide | West Des Moines Water Works | Undecided | GA91 |