| Amy Campbell | AARP Iowa | Undecided | GA88 |
| Brad Anderson | AARP Iowa | Undecided | GA88 |
| Craig Patterson | AARP Iowa | Undecided | GA88 |
| Jeffrey Boeyink | Alliant Energy Corporation | Undecided | GA88 |
| Julie Vande Hoef | Alliant Energy Corporation | Undecided | GA88 |
| Taylor McDonald | Alliant Energy Corporation | Undecided | GA88 |
| Drew Klein | Americans For Prosperity | Supporting | GA88 |
| Tyler Raygor | Americans For Prosperity | Supporting | GA88 |
| Drew Kamp | Ames Chamber of Commerce | Undecided | GA88 |
| Christopher Riley | Archer Daniels Midland Company | Opposing | GA88 |
| Johnathan Hladik | Center for Rural Affairs | Opposing | GA88 |
| Katie Rock | Center for Rural Affairs | Opposing | GA88 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Supporting | GA88 |
| Cyndi Pederson | Central Iowa Power Cooperative (CIPCO) | Supporting | GA88 |
| John Pederson | Central Iowa Power Cooperative (CIPCO) | Supporting | GA88 |
| MIke Delaney | Citizens For A Healthy Iowa | Opposing | GA88 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA88 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA88 |
| Doug Struyk | Facebook | Undecided | GA88 |
| Jennifer Dorman | Facebook | Undecided | GA88 |
| Jim Carney | Facebook | Undecided | GA88 |
| Andrea Woodard | Greater Des Moines Partnership | Supporting | GA88 |
| Brad Epperly | Greater Des Moines Partnership | Supporting | GA88 |
| Dustin Miller | Greater Des Moines Partnership | Supporting | GA88 |
| Joe Murphy | Greater Des Moines Partnership | Supporting | GA88 |
| Katie Graham | Greater Des Moines Partnership | Supporting | GA88 |
| Paula Dierenfeld | Greater Des Moines Partnership | Supporting | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Supporting | GA88 |
| Threase Harms | IBEW Iowa State Conference | Supporting | GA88 |
| Mark Joyce | ITC Midwest | Supporting | GA88 |
| Todd Schulz | ITC Midwest | Supporting | GA88 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Supporting | GA88 |
| Bob Rafferty | Iowa 80 Group, Inc | Opposing | GA88 |
| Brad Hartkopf | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Drew Wynes | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Michael Ralston | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Nicole Crain | Iowa Association of Business and Industry (ABI) | Supporting | GA88 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Supporting | GA88 |
| Julie Smith | Iowa Association of Municipal Utilities | Supporting | GA88 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Supporting | GA88 |
| Doug Struyk | Iowa Biodiesel Board | Opposing | GA88 |
| Doug Struyk | Iowa Biodiesel Board | Undecided | GA88 |
| Jennifer Dorman | Iowa Biodiesel Board | Opposing | GA88 |
| Jennifer Dorman | Iowa Biodiesel Board | Undecided | GA88 |
| Jim Carney | Iowa Biodiesel Board | Opposing | GA88 |
| Jim Carney | Iowa Biodiesel Board | Undecided | GA88 |
| Brad Epperly | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Dustin Miller | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Katie Graham | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Paula Dierenfeld | Iowa Business Energy Coalition (IBEC) | Undecided | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Supporting | GA88 |
| Brad Epperly | Iowa Chamber Alliance | Undecided | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Supporting | GA88 |
| Dustin Miller | Iowa Chamber Alliance | Undecided | GA88 |
| John Stineman | Iowa Chamber Alliance | Supporting | GA88 |
| John Stineman | Iowa Chamber Alliance | Undecided | GA88 |
| Katie Graham | Iowa Chamber Alliance | Supporting | GA88 |
| Katie Graham | Iowa Chamber Alliance | Undecided | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Supporting | GA88 |
| Paula Dierenfeld | Iowa Chamber Alliance | Undecided | GA88 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA88 |
| Matt Ohloff | Iowa Citizens for Community Improvement Action Fund | Opposing | GA88 |
| Jennifer Klein | Iowa Economic Development Authority | Undecided | GA88 |
| Kristin Hanks-Bents | Iowa Economic Development Authority | Undecided | GA88 |
| Jennifer Terry | Iowa Environmental Council | Opposing | GA88 |
| Jordan Oster | Iowa Environmental Council | Opposing | GA88 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA88 |
| Dane Schumann | Iowa Farmers Union | Opposing | GA88 |
| Dane Schumann | Iowa Farmers Union | Undecided | GA88 |
| Brad Epperly | Iowa Geothermal Association | Undecided | GA88 |
| Dustin Miller | Iowa Geothermal Association | Undecided | GA88 |
| Katie Graham | Iowa Geothermal Association | Undecided | GA88 |
| Paula Dierenfeld | Iowa Geothermal Association | Undecided | GA88 |
| Matthew Russell | Iowa Interfaith Power & Light | Opposing | GA88 |
| Drew Mogler | Iowa Pork Producers Association | Opposing | GA88 |
| Jeff Smith | Iowa Pork Producers Association | Opposing | GA88 |
| Jerry Fitzgerald | Iowa Pork Producers Association | Opposing | GA88 |
| Maggie Smith-Fitzgerald | Iowa Pork Producers Association | Opposing | GA88 |
| Matt Fitzgerald | Iowa Pork Producers Association | Opposing | GA88 |
| Jill Altringer | Iowa Poultry Association | Undecided | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Opposing | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Opposing | GA88 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Opposing | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Jim Henter | Iowa Retail Federation | Undecided | GA88 |
| Christopher Rants | Iowa Solar Energy Trade Association | Opposing | GA88 |
| John Cacciatore | Iowa Solar Energy Trade Association | Opposing | GA88 |
| Jill Altringer | Iowa Soybean Association | Undecided | GA88 |
| Michael Gronstal | Iowa State Building and Construction Trades | Supporting | GA88 |
| Alexander Cutchey | Iowa Utilities Board | Undecided | GA88 |
| Anna Hyatt | Iowa Utilities Board | Undecided | GA88 |
| Louis Vander Streek | Iowa Utilities Board | Undecided | GA88 |
| MIke Delaney | Izaak Walton League - Iowa Division | Opposing | GA88 |
| Dylan Gramlich | Laborers International Union of North America | Supporting | GA88 |
| David Adelman | MidAmerican Energy Company | Supporting | GA88 |
| John Davis | MidAmerican Energy Company | Supporting | GA88 |
| Matt Hinch | MidAmerican Energy Company | Supporting | GA88 |
| Scott Newhard | MidAmerican Energy Company | Supporting | GA88 |
| Kate Walton | Missouri River Energy Services | Undecided | GA88 |
| Matt Eide | Missouri River Energy Services | Undecided | GA88 |
| Brian Johnson | NECA - Iowa (NEC) | Opposing | GA88 |
| Craig Walter | NECA - Iowa (NEC) | Opposing | GA88 |
| Brian Johnson | NextEra Energy | Undecided | GA88 |
| Craig Walter | NextEra Energy | Undecided | GA88 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Supporting | GA88 |
| Jennifer Easler | Office of Consumer Advocate | Undecided | GA88 |
| Tyler Power | Quad Cities Chamber of Commerce | Supporting | GA88 |
| MIke Delaney | Raccoon River Watershed Association | Opposing | GA88 |
| Kent Hartwig | Renewable Energy Group (REG) | Opposing | GA88 |
| Scott Hedderich | Renewable Energy Group (REG) | Opposing | GA88 |
| Margaret Buckton | Rural School Advocates of Iowa | Opposing | GA88 |
| Katie Larson | SSAB (f/k/a IPSCO Steel) | Supporting | GA88 |
| Gary Grant | Urban County Coalition | Undecided | GA88 |
| Larry Murphy | Urban County Coalition | Undecided | GA88 |
| Meghan Malloy | Urban County Coalition | Undecided | GA88 |
| Margaret Buckton | Urban Education Network of Iowa | Opposing | GA88 |
| Mike Heller | Waste Management, Inc. | Opposing | GA88 |
| Mike Heller | Waste Management, Inc. | Undecided | GA88 |
| Paula Feltner | Waste Management, Inc. | Opposing | GA88 |
| Paula Feltner | Waste Management, Inc. | Undecided | GA88 |