| Robert Weiser | 3M Government Relations | Opposing | GA87 |
| Robert Weiser | 3M Government Relations | Withdrawn | GA87 |
| Robert Weiser | 3M Government Relations | Undecided | GA87 |
| Amy Campbell | AARP Iowa | Undecided | GA87 |
| Brad Anderson | AARP Iowa | Undecided | GA87 |
| Craig Patterson | AARP Iowa | Undecided | GA87 |
| Kent Sovern | AARP Iowa | Undecided | GA87 |
| John Easter | American Chemisty Council | Opposing | GA87 |
| Marcus Branstad | American Chemisty Council | Opposing | GA87 |
| Brandon Geib | Black Hills Energy | Undecided | GA87 |
| Susan Walter | Black Hills Energy | Undecided | GA87 |
| Josh Mandelbaum | Environmental Law and Policy Center | Opposing | GA87 |
| Steve Falck | Environmental Law and Policy Center | Opposing | GA87 |
| Jay Iverson | Home Builders Association of Iowa | Supporting | GA87 |
| David Adelman | Hubbell Realty Company | Undecided | GA87 |
| Frank Chiodo | Hubbell Realty Company | Undecided | GA87 |
| Matt Hinch | Hubbell Realty Company | Undecided | GA87 |
| Sara Allen | Hubbell Realty Company | Undecided | GA87 |
| Jim Obradovich | Iowa Association of Building Officials | Undecided | GA87 |
| Jim Obradovich | Iowa Association of Building Officials | Opposing | GA87 |
| Pete McRoberts | Iowa Association of Building Officials | Undecided | GA87 |
| Pete McRoberts | Iowa Association of Building Officials | Opposing | GA87 |
| Robert Mulqueen | Iowa Association of Building Officials | Undecided | GA87 |
| Robert Mulqueen | Iowa Association of Building Officials | 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 |
| David Palmer | Iowa Association of Community College Trustees (IACCT) | Undecided | GA87 |
| Donna Orton | Iowa Association of Community College Trustees (IACCT) | Undecided | GA87 |
| Emily Shields | Iowa Association of Community College Trustees (IACCT) | Undecided | GA87 |
| Laurie Wolf | Iowa Association of Community College Trustees (IACCT) | Undecided | GA87 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA87 |
| Timothy Whipple | Iowa Association of Municipal Utilities | Opposing | GA87 |
| Jennifer Kingland | Iowa Association of Realtors | Supporting | GA87 |
| Deborah Neustadt | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Pam Mackey-Taylor | Iowa Chapter of Sierra Club | Opposing | GA87 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Brad Epperly | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Dustin Miller | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Paige Thorson | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paige Thorson | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Undecided | GA87 |
| Paula Dierenfeld | Iowa Chapter, American Institute of Architects | Opposing | GA87 |
| Jennifer Klein | Iowa Economic Development Authority | Undecided | GA87 |
| Jennifer Terry | Iowa Environmental Council | Opposing | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Opposing | GA87 |
| Kerri Johannsen | Iowa Environmental Council | Undecided | GA87 |
| Nathaniel Baer | Iowa Environmental Council | Opposing | GA87 |
| Nathaniel Baer | Iowa Environmental Council | Undecided | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Opposing | GA87 |
| Ralph Rosenberg | Iowa Environmental Council | Undecided | GA87 |
| Susan Guy | Iowa Interfaith Power & Light | Opposing | 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 |
| John Davis | MidAmerican Energy Company | Opposing | GA87 |
| Matt Eide | Missouri River Energy Services | Undecided | GA87 |
| Doug Struyk | The Nature Conservancy | Opposing | GA87 |
| Jim Carney | The Nature Conservancy | Opposing | GA87 |
| Kristin Aschenbrenner | The Nature Conservancy | Opposing | GA87 |
| Shannon Henson | The Nature Conservancy | Opposing | GA87 |