- Plumbing, heating, air-conditioning (13)
- Painting and paper hanging (13)
- Electrical work (9)
- Masonry and other stonework (3)
- Plastering, drywall, and insulation (2)
- Terrazzo, tile, marble and mosaic work (2)
- Carpentry work (5)
- Floor laying and floor work, nec (3)
- Roofing, siding, and sheetmetal work (12)
- Concrete work (7)
- Glass and glazing work (1)
- Excavation work (7)
- Special trade contractors, nec (14)
