| [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 |
| [237130] Power and Communication Line and Related Structures Construction |
| [237310] Highway, Street, and Bridge Construction |
| [238110] Poured Concrete Foundation and Structure Contractors |
| [238120] Structural Steel and Precast Concrete Contractors |
| [238130] Framing Contractors |
| [238140] Masonry Contractors |
| [238150] Glass and Glazing Contractors |
| [238160] Roofing Contractors |
| [238210] Electrical Contractors |
| [238310] Drywall and Insulation Contractors |
| [238330] Flooring Contractors |
| [238340] Tile and Terrazzo Contractors |
| [238350] Finish Carpentry Contractors |
| [238390] Other Building Finishing Contractors |
| [238910] Site Preparation Contractors |
