- Plumbing, heating, air-conditioning (33)
- Painting and paper hanging (7)
- Electrical work (14)
- Masonry and other stonework (5)
- Plastering, drywall, and insulation (6)
- Terrazzo, tile, marble and mosaic work (3)
- Carpentry work (5)
- Floor laying and floor work, nec (2)
- Roofing, siding, and sheetmetal work (13)
- Concrete work (4)
- Structural steel erection (2)
- Glass and glazing work (1)
- Excavation work (5)
- Wrecking and demolition work (1)
- Installing building equipment (1)
- Special trade contractors, nec (35)
