Construction

23	Construction
236	Construction of Buildings
2361	Residential Building Construction
23611	Residential Building Construction
2362	Non-residential Building Construction
23621	Industrial Building and Structure Construction
23622	Commercial and Institutional Building Construction
237	Heavy and Civil Engineering Construction
2371	Utility System Construction
23711	Water and Sewer Line and Related Structures Construction
23712	Oil and Gas Pipeline and Related Structures Construction
23713	Power and Communication Line and Related Structures Construction
2372	Land Subdivision
23721	Land Subdivision
2373	Highway, Street and Bridge Construction
23731	Highway, Street and Bridge Construction
2379	Other Heavy and Civil Engineering Construction
23799	Other Heavy and Civil Engineering Construction
238	Specialty Trade Contractors
2381	Foundation, Structure, and Building Exterior Contractors
23811	Poured Concrete Foundation and Structure Contractors
23812	Structural Steel and Precast Concrete Contractors
23813	Framing Contractors
23814	Masonry Contractors
23815	Glass and Glazing Contractors
23816	Roofing Contractors
23817	Siding Contractors
23819	Other Foundation, Structure and Building Exterior Contractors
2382	Building Equipment Contractors
23821	Electrical Contractors and Other Wiring Installation Contractors
23822	Plumbing, Heating and Air-Conditioning Contractors
23829	Other Building Equipment Contractors
238291	Elevator and Escalator Installation Contractors
238299	All Other Building Equipment Contractors
2383	Building Finishing Contractors
23831	Drywall and Insulation Contractors
23832	Painting and Wall Covering Contractors
23833	Flooring Contractors
23834	Tile and Terrazzo Contractors
23835	Finish Carpentry Contractors
23839	Other Building Finishing Contractors
2389	Other Specialty Trade Contractors
23891	Site Preparation Contractors
23899	All Other Specialty Trade Contractors