- Carpentry Work
– sic code 1751 / 171 companies - Concrete Work
– sic code 1771 / 377 companies - Electrical Work
– sic code 1731 / 972 companies - Excavation Work
– sic code 1794 / 251 companies - Floor Laying and Other Floor Work, NEC
– sic code 1752 / 97 companies - Glass and Glazing Work
– sic code 1793 / 67 companies - Installation or Erection of Building Equipment, NEC
– sic code 1796 / 184 companies - Masonry, Stone Setting, and Other Stone Work
– sic code 1741 / 170 companies - Painting and Paper Hanging
– sic code 1721 / 176 companies - Plastering, Drywall, Acoustical, and Insulation Work
– sic code 1742 / 317 companies - Plumbing, Heating, and Air-Conditioning
– sic code 1711 / 1852 companies - Roofing, Siding, and Sheet Metal Work
– sic code 1761 / 345 companies - Special Trade Contractors, NEC
– sic code 1799 / 814 companies - Structural Steel Erection
– sic code 1791 / 311 companies - Terrazzo, Tile, Marble, and Mosaic Work
– sic code 1743 / 101 companies - Water Well Drilling
– sic code 1781 / 57 companies - Wrecking and Demolition Work
– sic code 1795 / 76 companies