- Structural steel erection (46)
- Glass and glazing work (60)
- Excavation work (368)
- Wrecking and demolition work (32)
- Installing building equipment (35)
- Special trade contractors, nec (1006)
- Athletic and recreation facilities construction (19)
- Coating, caulking, and weather, water, and fireproofing (9)
- Service station equipment (4)
- Rigging and scaffolding (6)
- Exterior cleaning, including sandblasting (7)
- Home/office interiors finishing, furnishing and remodeling (24)
- Parking facility equipment and maintenance (1)
- Building site preparation (2)
