| [236115] New Single-Family Housing Construction (except Operative Builders) |
| [236117] New Housing Operative Builders |
| [236118] Residential Remodelers |
| [236210] Industrial Building Construction |
| [236220] Commercial and Institutional Building Construction |
| [237110] Water and Sewer Line and Related Structures Construction |
| [237120] Oil and Gas Pipeline and Related Structures Construction |
| [237130] Power and Communication Line and Related Structures Construction |
| [237210] Land Subdivision |
| [237990] Other Heavy and Civil Engineering Construction |
| [238910] Site Preparation Contractors |
| [238990] All Other Specialty Trade Contractors |
