- Plumbing, heating, air-conditioning (44)
- Painting and paper hanging (10)
- Electrical work (13)
- Masonry and other stonework (2)
- Plastering, drywall, and insulation (6)
- Terrazzo, tile, marble and mosaic work (2)
- Carpentry work (14)
- Floor laying and floor work, nec (3)
- Roofing, siding, and sheetmetal work (23)
- Concrete work (5)
- Water well drilling (1)
- Structural steel erection (3)
- Excavation work (5)
- Wrecking and demolition work (2)
- Installing building equipment (1)
- Special trade contractors, nec (36)
