NAICS Codes

233210 Single Family Housing Construction
233220 Multifamily Housing Construction
233310 Manufacturing & Industrial Building Construction
233320 Commercial & Institutional Building Construction
234120 Bridge & Tunnel Construction
234910 Pipeline Construction (Sewer, Gas, Oil & Water)
234930 Industrial Non-building Structure Construction
234990 All Other Heavy Construction, NEC
235110 Plumbing & HVAC
235210 Painting & Wall Covering Contractors
235310 Electrical
235410 Masonry & Stone Contractors
235420 Drywall, Plastering, Acoustical & Insulation
235510 Carpentry Contractors
235520 Floor Laying and Other Floor Contractors
235610 Roofing, Siding & Sheet Metal
235930 Excavation Contractors
235940 Wrecking & Demolition Contractors
235990 Other Special Trade Contractors, NEC

236115 New Single-Family Housing Const. (Except For-Sale Builders)
236116 New Multifamily Housing Construction (Except For-Sale Build)
236118 Residential Remodelers
236210 Industrial Building Construction
236220 Commercial & Institutional Construction
237110 Water and Sewer Line and Related Structures Construction
237120 Oil and Gas Pipeline and Related Structures Construction
237130 Power & Communication Line & Related Structures Const.
237310 Highway, Street & Bridge Construction
237990 Other Heavy & Civil Engineering Construction
238110 Poured Concrete Foundation & Structure Contractors
238120 Structural Steel & Pre-cast Concrete Contractors
238130 Flooring Contractor
238140 Masonry Contractors
238150 Glass & Glazing Contractors
238160 Roofing Contractors
238170 Siding Contractors
238190 Other Foundation, Structure & Building Exterior Contractors
238210 Electrical Contractors & Other Installation Contractors

238220 Plumbing, Heating & Air-Conditioning Contractors
238290 Other Building Equipment Contractors
238310 Drywall & Insulation Contractors
238320 Painting & Wall Covering Contractors
238330 Flooring Contractors
238340 Tile & Terrazzo Contractors
238350 Finish Carpentry Contractors
238390 Other Building Finishing Contractors
238910 Site Prep Contractors
238990 All Other Specialty Trade Contractors
327331 Concrete Block & Brick Manufacturing
335999 All Other Misc. Electrical Equip. & Component Manufacturing
541310 Architectural Services
541330 Engineering Services
561210 Facility Support Services
561621 Security Systems Services (Except Locksmiths)
562910 Remediation Services