- Structural steel erection (117)
- Glass and glazing work (82)
- Excavation work (919)
- Wrecking and demolition work (55)
- Installing building equipment (40)
- Special trade contractors, nec (1784)
- Athletic and recreation facilities construction (25)
- Coating, caulking, and weather, water, and fireproofing (9)
- Service station equipment (2)
- Rigging and scaffolding (15)
- Exterior cleaning, including sandblasting (15)
- Home/office interiors finishing, furnishing and remodeling (33)
- Parking facility equipment and maintenance (2)
- Decontamination services (7)
- Building site preparation (3)
