- Plumbing, heating, air-conditioning (22)
- Painting and paper hanging (7)
- Electrical work (13)
- Masonry and other stonework (2)
- Plastering, drywall, and insulation (3)
- Terrazzo, tile, marble and mosaic work (1)
- Carpentry work (2)
- Floor laying and floor work, nec (1)
- Roofing, siding, and sheetmetal work (10)
- Concrete work (9)
- Water well drilling (2)
- Structural steel erection (1)
- Excavation work (9)
- Wrecking and demolition work (1)
- Special trade contractors, nec (23)
