- Plumbing, heating, air-conditioning (49)
- Painting and paper hanging (15)
- Electrical work (36)
- Masonry and other stonework (2)
- Plastering, drywall, and insulation (9)
- Terrazzo, tile, marble and mosaic work (4)
- Carpentry work (10)
- Floor laying and floor work, nec (3)
- Roofing, siding, and sheetmetal work (22)
- Concrete work (16)
- Water well drilling (1)
- Structural steel erection (1)
- Glass and glazing work (2)
- Excavation work (23)
- Installing building equipment (2)
- Special trade contractors, nec (27)
