- Plumbing, heating, air-conditioning (15)
- Painting and paper hanging (27)
- Electrical work (13)
- Masonry and other stonework (5)
- Plastering, drywall, and insulation (2)
- Terrazzo, tile, marble and mosaic work (5)
- Carpentry work (15)
- Floor laying and floor work, nec (2)
- Roofing, siding, and sheetmetal work (4)
- Concrete work (7)
- Water well drilling (1)
- Structural steel erection (1)
- Glass and glazing work (3)
- Excavation work (5)
- Special trade contractors, nec (16)
