| Tyler Raygor | Americans For Prosperity | Supporting | GA90 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA90 |
| David Peck | Ducks Unlimited, Inc. | Undecided | GA90 |
| Marc Beltrame | Ducks Unlimited, Inc. | Undecided | GA90 |
| Chelsea Hoye | Iowa Alliance of YMCA's | Undecided | GA90 |
| Nick Laning | Iowa Alliance of YMCA's | Undecided | GA90 |
| Threase Harms | Iowa Alliance of YMCA's | Undecided | GA90 |
| Amy Campbell | Iowa Association of County Conservation Boards | Opposing | GA90 |
| Chloe Gayer | Iowa Association of County Conservation Boards | Opposing | GA90 |
| Craig Patterson | Iowa Association of County Conservation Boards | Opposing | GA90 |
| Eric Goranson | Iowa Bowhunters Association | Opposing | GA90 |
| Cora Fox | Iowa Cattlemen's Association | Supporting | GA90 |
| Jake Swanson | Iowa Cattlemen's Association | Supporting | GA90 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA90 |
| Jefferson Fink | Iowa Conservation Alliance | Opposing | GA90 |
| Jim Obradovich | Iowa Conservation Alliance | Opposing | GA90 |
| Victoria Sinclair | Iowa Conservation Alliance | Opposing | GA90 |
| Chelsea Hoye | Iowa Environmental Council | Opposing | GA90 |
| Threase Harms | Iowa Environmental Council | Opposing | GA90 |
| Kevin Kuhle | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matt Gronewald | Iowa Farm Bureau Federation | Supporting | GA90 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Supporting | GA90 |
| Chelsea Hoye | Iowa Farmers Union | Opposing | GA90 |
| Threase Harms | Iowa Farmers Union | Opposing | GA90 |
| Amy Campbell | Iowa Natural Heritage Foundation | Opposing | GA90 |
| Anna Gray | Iowa Natural Heritage Foundation | Opposing | GA90 |
| Chloe Gayer | Iowa Natural Heritage Foundation | Opposing | GA90 |
| Craig Patterson | Iowa Natural Heritage Foundation | Opposing | GA90 |
| Phil Jeneary | Iowa Sportsmans Club | Opposing | GA90 |
| Dane Schumann | Izaak Walton League - Iowa Division | Opposing | GA90 |
| Gary Grant | Linn County Board of Supervisors | Undecided | GA90 |
| Larry Murphy | Linn County Board of Supervisors | Undecided | GA90 |
| Eric Goranson | Pheasants Forever, Inc. & Quail Forever | Opposing | GA90 |
| Amber Markham | The Nature Conservancy | Opposing | GA90 |
| Doug Struyk | The Nature Conservancy | Opposing | GA90 |
| Jennifer Dorman | The Nature Conservancy | Opposing | GA90 |
| Jim Carney | The Nature Conservancy | Opposing | GA90 |
| Gary Grant | Urban County Coalition | Undecided | GA90 |
| Larry Murphy | Urban County Coalition | Undecided | GA90 |