| Drew Klein | Americans For Prosperity | Undecided | GA88 |
| Tyler Raygor | Americans For Prosperity | Undecided | GA88 |
| Sandra Conlin | Associated Builders & Contractors of Iowa | Opposing | GA88 |
| Thomas Jochum | Central Iowa Building Construction Trades Council | Opposing | GA88 |
| Jay Iverson | Home Builders Association of Iowa | Undecided | GA88 |
| David Adelman | Hubbell Realty Company | Undecided | GA88 |
| Frank Chiodo | Hubbell Realty Company | Undecided | GA88 |
| Matt Hinch | Hubbell Realty Company | Undecided | GA88 |
| Sara Allen | Hubbell Realty Company | Undecided | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Opposing | GA88 |
| Dane Schumann | IBEW Iowa State Conference | Undecided | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Opposing | GA88 |
| Maddie Wilcox | IBEW Iowa State Conference | Undecided | GA88 |
| Threase Harms | IBEW Iowa State Conference | Opposing | GA88 |
| Threase Harms | IBEW Iowa State Conference | Undecided | GA88 |
| Thomas Jochum | International Union of Operating Engineers-Local 234 | Opposing | GA88 |
| Brad Epperly | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Dustin Miller | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Katie Graham | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Kevin Condon | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Paula Dierenfeld | Iowa Association of Electric Cooperatives | Undecided | GA88 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Opposing | GA88 |
| Julianne Frosolone | Iowa Federation of Labor, AFL-CIO | Opposing | GA88 |
| Angela Davis | Iowa Lumber Association | Undecided | GA88 |
| Michael Gronstal | Iowa State Building and Construction Trades | Opposing | GA88 |
| Michael Gronstal | Iowa State Building and Construction Trades | Undecided | GA88 |
| Brian Johnson | NECA - Iowa (NEC) | Opposing | GA88 |
| Craig Walter | NECA - Iowa (NEC) | Opposing | GA88 |
| Charlotte Eby | North Central States Regional Council of Carpenters | Opposing | GA88 |
| Felicia Hilton | North Central States Regional Council of Carpenters | Opposing | GA88 |
| Taylor McDonald | North Central States Regional Council of Carpenters | Opposing | GA88 |
| Christopher Rants | Plumbers and Steam Fitters Local 33 | Opposing | GA88 |
| John Cacciatore | Plumbers and Steam Fitters Local 33 | Opposing | GA88 |
| Chris Smith | SMART Sheet Metal Local 45 | Opposing | GA88 |
| Chris Smith | SMART Sheet Metal Local 91 | Opposing | GA88 |
| Kelli Harrison | UAW Region 4 | Opposing | GA88 |