NAICS

North American Industry Classification System (NAICS) – Codes Supported
221310 – Water Supply & Irrigation Systems
236220 – Commercial & Institutional Building Construction
237990 – Other Heavy & Civil Engineering Construction
238160 – Roofing
238210 – Electrical Contractors & Other Wiring Installation Contractors
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238310 – Drywall and Insulation Contractors
238320 – Painting and Wall Covering Contractors
238350 – Finish Carpentry Contractors
238390 – Building Fixtures & Specialties
238990 – All Other Specialty Trade Contractors – Fencing Contractor; Rubberized Sports Surface; Flag Pole
339950 – Sign Manufacturing and Installation
423310 – Lumber, Plywood, Millwork, and Wood Panels
485113 – Bus and Other Motor Vehicle Transit Systems
531120 – Modular Buildings
532412 – Construction, Mining, Forestry Machinery, Equip. Rental & Leasing
541620 – Waste Management Consulting Services
561210 – Facility Support Services
561990 – All Other Support Services (e.g. Document Shredding, Flagging Services, Meter Reading, Etc.)
562111 – Recyclable Material Collection; Solid Waste Removal
562920 – Operating Non-Hazardous Waste Sorting/Separating Facilities
812930 – Valet Parking Services