| Drew Kamp | Ames Chamber of Commerce | Undecided | GA87 |
| Doug Struyk | Anheuser Busch | Undecided | GA87 |
| Jim Carney | Anheuser Busch | Undecided | GA87 |
| Shannon Henson | Anheuser Busch | Undecided | GA87 |
| Brice Oakley | Casey's General Stores | Supporting | GA87 |
| Don Avenson | Casey's General Stores | Supporting | GA87 |
| Tom Cope | Casey's General Stores | Supporting | GA87 |
| MIke Delaney | Citizens For A Healthy Iowa | Opposing | GA87 |
| Gary Grant | City of Cedar Rapids | Undecided | GA87 |
| Gary Grant | City of Cedar Rapids | Withdrawn | GA87 |
| Gary Grant | City of Cedar Rapids | Opposing | GA87 |
| Larry Murphy | City of Cedar Rapids | Undecided | GA87 |
| Larry Murphy | City of Cedar Rapids | Withdrawn | GA87 |
| Larry Murphy | City of Cedar Rapids | Opposing | GA87 |
| Meghan Malloy | City of Cedar Rapids | Undecided | GA87 |
| Meghan Malloy | City of Cedar Rapids | Withdrawn | GA87 |
| Meghan Malloy | City of Cedar Rapids | Opposing | GA87 |
| Connor Slack | Des Moines Water Works | Opposing | GA87 |
| Dane Schumann | Des Moines Water Works | Opposing | GA87 |
| Emily Hockins | Des Moines Water Works | Opposing | GA87 |
| Threase Harms | Des Moines Water Works | Opposing | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA87 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA87 |
| Kellie Paschke | FUELIowa | Supporting | GA87 |
| Troy Skinner | FUELIowa | Supporting | GA87 |
| Andrea Woodard | Greater Des Moines Partnership | Undecided | GA87 |
| Brad Epperly | Greater Des Moines Partnership | Undecided | GA87 |
| Dustin Miller | Greater Des Moines Partnership | Undecided | GA87 |
| Joe Murphy | Greater Des Moines Partnership | Undecided | GA87 |
| Paige Thorson | Greater Des Moines Partnership | Undecided | GA87 |
| Paula Dierenfeld | Greater Des Moines Partnership | Undecided | GA87 |
| Angela Davis | Hy-Vee, Inc. | Supporting | GA87 |
| Bill Wimmer | Hy-Vee, Inc. | Supporting | GA87 |
| Bob Ward | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Kathleen McQuillen | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| William Steward | Iowa Annual Conference of United Methodist Church | Opposing | GA87 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA87 |
| Craig Syata | Iowa Association of Community Providers | Opposing | GA87 |
| Julie Smith | Iowa Association of Community Providers | Opposing | GA87 |
| Shelly Chandler | Iowa Association of Community Providers | Opposing | GA87 |
| Amy Campbell | Iowa Association of County Conservation Boards | Opposing | GA87 |
| Craig Patterson | Iowa Association of County Conservation Boards | Opposing | GA87 |
| Angela Davis | Iowa Beverage Association | Supporting | GA87 |
| Bill Wimmer | Iowa Beverage Association | Supporting | GA87 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA87 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA87 |
| Paige Thorson | Iowa Chamber Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Justin LaVan | Iowa Dairy Foods Association | Undecided | GA87 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Opposing | GA87 |
| Eric Bradley | Iowa Environmental Health Association | Opposing | GA87 |
| Jim Obradovich | Iowa Environmental Health Association | Opposing | GA87 |
| Pete McRoberts | Iowa Environmental Health Association | Opposing | GA87 |
| Robert Mulqueen | Iowa Environmental Health Association | Opposing | GA87 |
| Don Petersen | Iowa Farm Bureau Federation | Opposing | GA87 |
| Marty Schwager | Iowa Farm Bureau Federation | Opposing | GA87 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Opposing | GA87 |
| Brad Epperly | Iowa Grocery Industry Association | Supporting | GA87 |
| Dustin Miller | Iowa Grocery Industry Association | Supporting | GA87 |
| Paige Thorson | Iowa Grocery Industry Association | Supporting | GA87 |
| Paula Dierenfeld | Iowa Grocery Industry Association | Supporting | GA87 |
| Susan Guy | Iowa Interfaith Power & Light | Opposing | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Opposing | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Opposing | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Opposing | GA87 |
| Amy Campbell | Iowa Natural Heritage Foundation | Opposing | GA87 |
| Craig Patterson | Iowa Natural Heritage Foundation | Opposing | GA87 |
| Jim Obradovich | Iowa Recycling Association | Opposing | GA87 |
| Jim Henter | Iowa Retail Federation | Supporting | GA87 |
| Connor Slack | Iowa Rivers Revival | Undecided | GA87 |
| Dane Schumann | Iowa Rivers Revival | Undecided | GA87 |
| Emily Hockins | Iowa Rivers Revival | Undecided | GA87 |
| Threase Harms | Iowa Rivers Revival | Undecided | GA87 |
| Brad Epperly | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Dustin Miller | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Paige Thorson | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Paula Dierenfeld | Iowa Society of Certified Public Accountants | Undecided | GA87 |
| Jim Obradovich | Iowa Society of Solid Waste Operations (ISOSWO) | Opposing | GA87 |
| Pete McRoberts | Iowa Society of Solid Waste Operations (ISOSWO) | Opposing | GA87 |
| Robert Mulqueen | Iowa Society of Solid Waste Operations (ISOSWO) | Opposing | GA87 |
| Jamie Cashman | Iowa State Association of Counties | Opposing | GA87 |
| Kristi Harshbarger | Iowa State Association of Counties | Opposing | GA87 |
| Lucas Beenken | Iowa State Association of Counties | Opposing | GA87 |
| William Peterson | Iowa State Association of Counties | Opposing | GA87 |
| William Heckroth | Iowa State Association of County Supervisors | Undecided | GA87 |
| William Heckroth | Iowa State Association of County Supervisors | Withdrawn | GA87 |
| William Heckroth | Iowa State Association of County Supervisors | Opposing | GA87 |
| Mike Heller | Iowa Wholesale Beer Distributors Association | Opposing | GA87 |
| Paula Feltner | Iowa Wholesale Beer Distributors Association | Opposing | GA87 |
| MIke Delaney | Izaak Walton League - Iowa Division | Opposing | GA87 |
| Larry Blixt | KWIK Trip, Inc. | Supporting | GA87 |
| John Pederson | Kum and Go, L.C. | Supporting | GA87 |
| Kate Walton | Kum and Go, L.C. | Supporting | GA87 |
| Matt Eide | Kum and Go, L.C. | Supporting | GA87 |
| Amy Campbell | League of Women Voters of Iowa | Opposing | GA87 |
| Craig Patterson | League of Women Voters of Iowa | Opposing | GA87 |
| David Adelman | Metro Waste Authority | Undecided | GA87 |
| Frank Chiodo | Metro Waste Authority | Undecided | GA87 |
| Matt Hinch | Metro Waste Authority | Undecided | GA87 |
| Sara Allen | Metro Waste Authority | Undecided | GA87 |
| Jocelyn Fry | Personal Interest - Jocelyn Fry | Opposing | GA87 |
| MIke Delaney | Raccoon River Watershed Association | Opposing | GA87 |
| Marc Beltrame | TOMRA of North America, Inc. | Opposing | GA87 |
| Matt McKinney | TOMRA of North America, Inc. | Opposing | GA87 |
| RG Schwarm | TOMRA of North America, Inc. | Opposing | GA87 |
| Sandra Conlin | Wal-Mart Stores, Inc. | Supporting | GA87 |