NAICS Codes

236220: Commercial & Industrial Building Construction (Primary)

236210: Industrial Building Construction

237110: Water and Sewer Line

237120: Oil and Gas Pipeline

237130: Power & Communications

237310: Highway, Street and Bridge Construction

237990: Other Heavy and Civil Engineering Construction

238110: Poured Concrete Foundation and Structure

238120: Structural Steel and Precast Concrete

238130: Framing Carpentry

238140: Masonry Contractors

238150: Glass and Glazing Contractors

238160: Roofing Contractors

238170: Siding Contractors

238190: Other Foundation, Structure and Building Exterior

239210: Electrical Contractors

238220: Plumbing, Heating and Air Conditioning

238290: Other Building Equipment Contractor

238310: Drywall and Insulation Contractors

238320: Painting and Wall Covering

238330: Flooring Contractors

238340: Tile and Terrazzo Contractors

541350: Building Inspection Services

541380: Testing Laboratories

561621: Security System Services (Except Locksmiths)

811213: Communications Equipment Repairs & Maintenance