| Amy Campbell | AARP Iowa | Opposing | GA87 |
| Brad Anderson | AARP Iowa | Opposing | GA87 |
| Craig Patterson | AARP Iowa | Opposing | GA87 |
| Kent Sovern | AARP Iowa | Opposing | GA87 |
| Jeffrey Boeyink | Alliant Energy Corporation | Supporting | GA87 |
| Julie Vande Hoef | Alliant Energy Corporation | Supporting | GA87 |
| Doug Struyk | American Electric Power | Withdrawn | GA87 |
| Doug Struyk | American Electric Power | Opposing | GA87 |
| Jennifer Dorman | American Electric Power | Withdrawn | GA87 |
| Jennifer Dorman | American Electric Power | Opposing | GA87 |
| Jim Carney | American Electric Power | Withdrawn | GA87 |
| Jim Carney | American Electric Power | Opposing | GA87 |
| Christopher Riley | Archer Daniels Midland Company | Undecided | GA87 |
| Kate Walton | Arconic (Formerly Alcoa) | Undecided | GA87 |
| Matt Eide | Arconic (Formerly Alcoa) | Undecided | GA87 |
| Jim Obradovich | Association of Regional Water Organizations | Opposing | GA87 |
| Brandon Geib | Black Hills Energy | Supporting | GA87 |
| Keith Saunders | Board of Regents, State of Iowa | Undecided | GA87 |
| Kristin Bauer | Board of Regents, State of Iowa | Undecided | GA87 |
| Mary Braun | Board of Regents, State of Iowa | Undecided | GA87 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Undecided | GA87 |
| Gary Grant | Cedar Rapids Metro Economic Alliance | Withdrawn | GA87 |
| Katie Rock | Center for Rural Affairs | Opposing | GA87 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Undecided | GA87 |
| Cyndi Pederson | Central Iowa Power Cooperative (CIPCO) | Supporting | GA87 |
| John Pederson | Central Iowa Power Cooperative (CIPCO) | Supporting | GA87 |
| MIke Delaney | Citizens For A Healthy Iowa | Opposing | GA87 |
| Jim Obradovich | Coalition for Iowa Woodlands and Trees | Opposing | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA87 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA87 |
| Doug Struyk | Facebook | Undecided | GA87 |
| Jennifer Dorman | Facebook | Undecided | GA87 |
| Jim Carney | Facebook | Undecided | GA87 |
| Christopher Rants | Green Tech Action Fund | Withdrawn | GA87 |
| Christopher Rants | Green Tech Action Fund | Opposing | GA87 |
| John Cacciatore | Green Tech Action Fund | Opposing | GA87 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA87 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA87 |
| Emily Hockins | IBEW Iowa State Conference | Undecided | GA87 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA87 |
| Mark Joyce | ITC Midwest | Supporting | GA87 |
| Todd Schulz | ITC Midwest | Supporting | GA87 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Undecided | GA87 |
| Bob Rafferty | Iowa American Water Co. | Undecided | 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 |
| Marty Ryan | 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 |
| Stephanie Fawkes-Lee | 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) | Undecided | GA87 |
| Jessica Hyland | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Undecided | GA87 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Supporting | GA87 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Supporting | GA87 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Supporting | GA87 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Supporting | GA87 |
| Julie Smith | Iowa Association of Municipal Utilities | Supporting | GA87 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Supporting | GA87 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA87 |
| Dustin Miller | Iowa Business Energy Coalition (IBEC) | Undecided | GA87 |
| Paula Dierenfeld | Iowa Business Energy Coalition (IBEC) | Undecided | GA87 |
| Larry Murphy | Iowa Catholic Conference | Undecided | GA87 |
| Meghan Malloy | Iowa Catholic Conference | Undecided | GA87 |
| Tom Chapman | Iowa Catholic Conference | Undecided | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Matt Ohloff | Iowa Citizens for Community Improvement Action Fund | Opposing | GA87 |
| Ryan Sempf | Iowa City Area Chamber of Commerce | Undecided | GA87 |
| Ryan Sempf | Iowa City Area Chamber of Commerce | Supporting | GA87 |
| Adam Lounsbury | Iowa Commission on Volunteer Services | Undecided | GA87 |
| Jamie Orozco Nagel | Iowa Commission on Volunteer Services | Undecided | GA87 |
| Brad Epperly | Iowa Communications Alliance | Undecided | GA87 |
| Caitlin Jarzen | Iowa Communications Alliance | Undecided | GA87 |
| Dave Duncan | Iowa Communications Alliance | Undecided | GA87 |
| Dustin Miller | Iowa Communications Alliance | Undecided | GA87 |
| Paula Dierenfeld | Iowa Communications Alliance | Undecided | GA87 |
| Sharon Tahtinen | Iowa Dept. of Natural Resources | Undecided | GA87 |
| Jennifer Klein | Iowa Economic Development Authority | Undecided | GA87 |
| Jennifer Terry | Iowa Environmental Council | Opposing | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Nathaniel Baer | Iowa Environmental Council | Opposing | GA87 |
| Don Petersen | Iowa Farm Bureau Federation | Undecided | GA87 |
| Marty Schwager | Iowa Farm Bureau Federation | Undecided | GA87 |
| Matthew Steinfeldt | Iowa Farm Bureau Federation | Undecided | GA87 |
| Lana Shope | Iowa Head Start Association | Opposing | GA87 |
| John Benson | Iowa Homeland Security & Emergency Management Div. | Undecided | GA87 |
| Alan Kemp | Iowa League of Cities | Undecided | GA87 |
| Lindsey McCune | Iowa League of Cities | Undecided | GA87 |
| Robert Palmer | Iowa League of Cities | Undecided | GA87 |
| Jeff Smith | Iowa Pork Producers Association (IPP) | Undecided | GA87 |
| Jerry Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA87 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA87 |
| Matt Fitzgerald | Iowa Pork Producers Association (IPP) | Undecided | GA87 |
| Tyler Bettin | Iowa Pork Producers Association (IPP) | Undecided | GA87 |
| Tim Coonan | Iowa Propane Gas Association | Opposing | GA87 |
| Christopher Rants | Iowa Solar Energy Trade Association | Opposing | GA87 |
| John Cacciatore | Iowa Solar Energy Trade Association | Opposing | GA87 |
| tom fey | Iowa State Building and Construction Trades Council | Undecided | GA87 |
| Alexander Cutchey | Iowa Utilities Board | Undecided | GA87 |
| Geri Huser | Iowa Utilities Board | Undecided | GA87 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA87 |
| Nick Wagner | Iowa Utilities Board | Undecided | GA87 |
| Richard Lozier | Iowa Utilities Board | Undecided | GA87 |
| MIke Delaney | Izaak Walton League - Iowa Division | Opposing | GA87 |
| Erich Schmidt | Laborers International Union of North America | Undecided | GA87 |
| Kate Walton | Lennox International | Undecided | GA87 |
| Matt Eide | Lennox International | Undecided | GA87 |
| Brian Johnson | Maquoketa Valley Electric Cooperative | Undecided | GA87 |
| Brian Johnson | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA87 |
| Craig Walter | Mechanical Contractors Association of Iowa (MCAI) | Undecided | GA87 |
| John Davis | MidAmerican Energy Company | Undecided | GA87 |
| Kate Walton | Missouri River Energy Services | Undecided | GA87 |
| Matt Eide | Missouri River Energy Services | Undecided | GA87 |
| Brian Johnson | NECA - Iowa (NEC) | Opposing | GA87 |
| Craig Walter | NECA - Iowa (NEC) | Opposing | GA87 |
| Cody Carlson | National Federation of Independent Business (NFIB /IA) | Undecided | GA87 |
| Julie Smith | Nebraska Municipal Power Pool - NMPP Energy | Supporting | GA87 |
| Brian Johnson | NextEra Energy | Opposing | GA87 |
| Brian Johnson | NextEra Energy | Undecided | GA87 |
| Craig Walter | NextEra Energy | Opposing | GA87 |
| Craig Walter | NextEra Energy | Undecided | GA87 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Undecided | GA87 |
| Jennifer Easler | Office of Consumer Advocate | Opposing | GA87 |
| Mark Schuling | Office of Consumer Advocate | Opposing | GA87 |
| Kate Walton | POET, LLC | Undecided | GA87 |
| Matt Eide | POET, LLC | Undecided | GA87 |
| MIke Delaney | Panora Conservation Chapter of tihe Izaak Walton League | Opposing | GA87 |
| Amy Campbell | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| Craig Patterson | Professional Developers of Iowa (PDI) | Undecided | GA87 |
| MIke Delaney | Raccoon River Watershed Association | Opposing | GA87 |
| Chris Smith | SMART Sheet Metal Local 263 | Undecided | GA87 |
| Chris Smith | SMART Sheet Metal Local 45 | Undecided | GA87 |
| Chris Smith | SMART Sheet Metal Local 91 | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Opposing | GA87 |
| Doug Struyk | The Nature Conservancy | Undecided | GA87 |
| Jennifer Dorman | The Nature Conservancy | Opposing | GA87 |
| Jennifer Dorman | The Nature Conservancy | Undecided | GA87 |
| Jim Carney | The Nature Conservancy | Opposing | GA87 |
| Jim Carney | The Nature Conservancy | Undecided | GA87 |
| Kristin Aschenbrenner | The Nature Conservancy | Opposing | GA87 |
| Doug Struyk | Transource Energy LLC | Opposing | GA87 |
| Jennifer Dorman | Transource Energy LLC | Opposing | GA87 |
| Jim Carney | Transource Energy LLC | Opposing | GA87 |
| Kate Walton | Tyson Foods, Inc. | Undecided | GA87 |
| Matt Eide | Tyson Foods, Inc. | Undecided | GA87 |