| [236115] New Single-Family Housing Construction (except Operative Builders) |
| [236210] Industrial Building Construction |
| [236220] Commercial and Institutional Building Construction |
| [237110] Water and Sewer Line and Related Structures Construction |
| [237310] Highway, Street, and Bridge Construction |
| [237990] Other Heavy and Civil Engineering Construction |
| [238110] Poured Concrete Foundation and Structure Contractors |
| [238140] Masonry Contractors |
| [238190] Other Foundation, Structure, and Building Exterior Contractors |
| [238910] Site Preparation Contractors |
| [238990] All Other Specialty Trade Contractors |