| MIke Delaney | Citizens For A Healthy Iowa | Opposing | GA87 |
| Jim Obradovich | Commercial Fishing and Aquaculture Association | Undecided | GA87 |
| Amy Campbell | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Craig Patterson | Iowa Association of County Conservation Boards | Undecided | GA87 |
| Brice Oakley | Iowa Bowhunters Association | Opposing | GA87 |
| Don Avenson | Iowa Bowhunters Association | Opposing | GA87 |
| Tom Cope | Iowa Bowhunters Association | Opposing | GA87 |
| Larry Murphy | Iowa Catholic Conference | Withdrawn | GA87 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA87 |
| Meghan Malloy | Iowa Catholic Conference | Withdrawn | GA87 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA87 |
| Mike Heller | Iowa Conservation Alliance | Opposing | GA87 |
| Mike Heller | Iowa Conservation Alliance | Undecided | GA87 |
| Paula Feltner | Iowa Conservation Alliance | Opposing | GA87 |
| Paula Feltner | Iowa Conservation Alliance | Undecided | GA87 |
| Jim Obradovich | Iowa Coon Hunters Association | Undecided | GA87 |
| Tammie Krausman | Iowa Dept. of Natural Resources | Undecided | GA87 |
| Richard Rogers | Iowa Firearms Coalition, Inc. | Supporting | GA87 |
| Amy Campbell | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Craig Patterson | Iowa Natural Heritage Foundation | Undecided | GA87 |
| Jim Obradovich | Iowa Trappers Association | Undecided | GA87 |
| MIke Delaney | Izaak Walton League - Iowa Division | Opposing | GA87 |
| Marty Ryan | Lead Is Poison Coalition (LIP-C) | Undecided | GA87 |
| Stephanie Fawkes-Lee | Lead Is Poison Coalition (LIP-C) | Undecided | GA87 |
| Scott Rausch | National Rifle Association of America | Supporting | GA87 |
| Amy Campbell | Travel Federation of Iowa | Undecided | GA87 |
| Craig Patterson | Travel Federation of Iowa | Undecided | GA87 |