- Plumbing, heating, air-conditioning (547)
- Painting and paper hanging (139)
- Electrical work (290)
- Masonry and other stonework (49)
- Plastering, drywall, and insulation (59)
- Terrazzo, tile, marble and mosaic work (42)
- Carpentry work (84)
- Floor laying and floor work, nec (61)
- Roofing, siding, and sheetmetal work (71)
- Concrete work (41)
- Structural steel erection (34)
- Glass and glazing work (19)
- Excavation work (27)
- Wrecking and demolition work (17)
- Installing building equipment (12)
- Special trade contractors, nec (410)
