- Structural steel erection (122)
- Glass and glazing work (149)
- Excavation work (1714)
- Wrecking and demolition work (99)
- Installing building equipment (98)
- Special trade contractors, nec (2838)
- Athletic and recreation facilities construction (60)
- Coating, caulking, and weather, water, and fireproofing (59)
- Service station equipment (3)
- Rigging and scaffolding (6)
- Exterior cleaning, including sandblasting (27)
- Home/office interiors finishing, furnishing and remodeling (100)
- Parking facility equipment and maintenance (2)
- Decontamination services (14)
- Building site preparation (4)
