236118 – Residential Remodelers

236210 – Industrial Building Construction

237110 – Water and Sewer Line and Related Structures Construction

237120 – Oil and Gas Pipeline and Related Structures Construction

237130 – Power and Communication Line and Related Structures Construction

237310 – Highway, Street and Bridge Construction

237990 – Other Heavy and Civil Engineering Construction

238110 – Poured Concrete Foundation and Structure Contractors

238160 – Drywall and Insulation Contractors

238190 – Other Foundation, Structure and Building Exterior Contractors

238210 – Electrical Contractors and other Wiring Installation Contractors

238220 – Plumbing, Heating and Air Conditioning

238290 – Other Building Equipment Contractors

238310 – Drywall and insulation Contractors

238320 – Painting and Wall Covering Contractors

238330 – Flooring Contractors

238340 – Tile and Terrazzo Contractors

238350 – Roofing Contractor