| Jerry Fitzgerald | Alliance for Fair Competition (AFC) | Undecided | GA84 |
| Maggie Smith-Fitzgerald | Alliance for Fair Competition (AFC) | Undecided | GA84 |
| Mark Joyce | Alliance for Fair Competition (AFC) | Undecided | GA84 |
| tom fey | Central IA Building & Construction Trades Council | Opposing | GA84 |
| Dave Parker | Great Plains Laborers District Council | Undecided | GA84 |
| Bill Wimmer | Home Builders Assn. of IA | Undecided | GA84 |
| Craig Schoenfeld | Home Builders Assn. of IA | Undecided | GA84 |
| David Palmer | IA. Assn. of Community College Trustees (IACCT) | Undecided | GA84 |
| Brad Epperly | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Keith Luchtel | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Paula Dierenfeld | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Scott Sundstrom | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Tim Coonan | IA. Assn. of Electric Cooperatives | Undecided | GA84 |
| Brad Epperly | IA. Chapter, American Institute of Architects | Undecided | GA84 |
| Keith Luchtel | IA. Chapter, American Institute of Architects | Undecided | GA84 |
| Paula Dierenfeld | IA. Chapter, American Institute of Architects | Undecided | GA84 |
| Scott Sundstrom | IA. Chapter, American Institute of Architects | Undecided | GA84 |
| George Appleby | IA. Competitive Bidding Alliance, Inc. | Undecided | GA84 |
| Jennifer Tyler | IA. Competitive Bidding Alliance, Inc. | Undecided | GA84 |
| Jim Carney | IA. Competitive Bidding Alliance, Inc. | Undecided | GA84 |
| Janice Laue | IA. Federation of Labor, AFL-CIO | Opposing | GA84 |
| Ken Sagar | IA. Federation of Labor, AFL-CIO | Opposing | GA84 |
| Brad Epperly | IA. Geothermal Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Geothermal Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Geothermal Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Geothermal Assn. | Undecided | GA84 |
| Brad Epperly | IA. Propane Gas Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Propane Gas Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Propane Gas Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Propane Gas Assn. | Undecided | GA84 |
| Mike Heller | IA. Retail Federation | Undecided | GA84 |
| Paula Feltner | IA. Retail Federation | Undecided | GA84 |
| tom fey | IA. State Building and Construction Trades Council | Opposing | GA84 |
| Brad Epperly | IA. Water Well Assn. | Undecided | GA84 |
| Keith Luchtel | IA. Water Well Assn. | Undecided | GA84 |
| Paula Dierenfeld | IA. Water Well Assn. | Undecided | GA84 |
| Scott Sundstrom | IA. Water Well Assn. | Undecided | GA84 |
| Chad Kleppe | Master Builders of IA | Undecided | GA84 |
| Mike Heller | Master Builders of IA | Undecided | GA84 |
| Paula Feltner | Master Builders of IA | Undecided | GA84 |
| Brian Johnson | Mechanical Contractors Association of IA (MCAI) | Opposing | GA84 |
| Jamie Cashman | Mechanical Contractors Association of IA (MCAI) | Opposing | GA84 |
| tom fey | Plumbers and Steam Fitters Local 33 | Opposing | GA84 |
| David Adelman | Sheet Metal Contractors of IA | Undecided | GA84 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Opposing | GA84 |