- Plumbing, heating, air-conditioning (20)
- Painting and paper hanging (19)
- Electrical work (9)
- Masonry and other stonework (2)
- Plastering, drywall, and insulation (7)
- Terrazzo, tile, marble and mosaic work (7)
- Carpentry work (10)
- Floor laying and floor work, nec (9)
- Roofing, siding, and sheetmetal work (22)
- Concrete work (8)
- Structural steel erection (1)
- Excavation work (1)
- Wrecking and demolition work (1)
- Special trade contractors, nec (32)
