- Plumbing, heating, air-conditioning (63)
- Painting and paper hanging (30)
- Electrical work (44)
- Masonry and other stonework (6)
- Plastering, drywall, and insulation (11)
- Terrazzo, tile, marble and mosaic work (4)
- Carpentry work (13)
- Floor laying and floor work, nec (7)
- Roofing, siding, and sheetmetal work (17)
- Concrete work (16)
- Water well drilling (1)
- Structural steel erection (1)
- Glass and glazing work (3)
- Excavation work (6)
- Installing building equipment (3)
- Special trade contractors, nec (76)
