- Structural steel erection (70)
- Glass and glazing work (73)
- Excavation work (755)
- Wrecking and demolition work (59)
- Installing building equipment (53)
- Special trade contractors, nec (1729)
- Athletic and recreation facilities construction (17)
- Coating, caulking, and weather, water, and fireproofing (7)
- Service station equipment (2)
- Rigging and scaffolding (5)
- Exterior cleaning, including sandblasting (9)
- Home/office interiors finishing, furnishing and remodeling (49)
- Parking facility equipment and maintenance (1)
- Decontamination services (8)
- Building site preparation (6)
