| Doug Struyk | Anheuser Busch | Undecided | GA88 |
| Jennifer Dorman | Anheuser Busch | Undecided | GA88 |
| Jim Carney | Anheuser Busch | Undecided | GA88 |
| Dane Schumann | Des Moines Water Works | Supporting | GA88 |
| Maddie Wilcox | Des Moines Water Works | Supporting | GA88 |
| Threase Harms | Des Moines Water Works | Supporting | GA88 |
| Wendy Abrahamson | Episcopal Diocese of Iowa | Supporting | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Opposing | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Supporting | GA88 |
| Brian Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Gary Nims | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Rita Carter | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Sheila Corsbie | Iowa Conference of United Methodist Church | Supporting | GA88 |
| William Steward | Iowa Conference of United Methodist Church | Supporting | GA88 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA88 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA88 |
| Dane Schumann | Iowa Environmental Council | Undecided | GA88 |
| Maddie Wilcox | Iowa Environmental Council | Undecided | GA88 |
| Threase Harms | Iowa Environmental Council | Undecided | GA88 |
| Eric Bradley | Iowa Environmental Health Association | Supporting | GA88 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA88 |
| Maddie Wilcox | Iowa Farmers Union | Undecided | GA88 |
| Threase Harms | Iowa Farmers Union | Undecided | GA88 |
| Brad Epperly | Iowa Grocery Industry Association | Opposing | GA88 |
| Dustin Miller | Iowa Grocery Industry Association | Opposing | GA88 |
| Katie Graham | Iowa Grocery Industry Association | Opposing | GA88 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Opposing | GA88 |
| Matt McKinney | Iowa Recycling Association | Supporting | GA88 |
| RG Schwarm | Iowa Recycling Association | Supporting | GA88 |
| Dane Schumann | Iowa Rivers Revival | Undecided | GA88 |
| Maddie Wilcox | Iowa Rivers Revival | Undecided | GA88 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA88 |
| Jamie Cashman | Iowa State Association of Counties | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of Counties | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of Counties | Supporting | GA88 |
| William Peterson | Iowa State Association of Counties | Supporting | GA88 |
| Jamie Cashman | Iowa State Association of County Supervisors | Supporting | GA88 |
| Kristi Harshbarger | Iowa State Association of County Supervisors | Supporting | GA88 |
| Lucas Beenken | Iowa State Association of County Supervisors | Supporting | GA88 |
| William Peterson | Iowa State Association of County Supervisors | Supporting | GA88 |
| Brian Johnson | Iowa West Racing Association | Undecided | GA88 |
| Craig Walter | Iowa West Racing Association | Undecided | GA88 |
| Jake Ketzner | KWIK Trip, Inc. | Opposing | GA88 |
| Larry Blixt | KWIK Trip, Inc. | Opposing | GA88 |
| Amy Campbell | League of Women Voters of Iowa | Supporting | GA88 |
| Craig Patterson | League of Women Voters of Iowa | Supporting | GA88 |
| Mark Joyce | MolsonCoors Beverage Company USA LLC | Undecided | GA88 |
| Mike Heller | Waste Management, Inc. | Undecided | GA88 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA88 |
| Angela Davis | Wine Institute | Opposing | GA88 |