NAICS Codes:
236210: Industrial Building Construction
236220: Commercial and Institutional Building 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 Construction
237310: Highway, Street, and Bridge Construction
237990: Other Heavy and Civil Engineering Construction
238110: Poured Concrete Foundation and Structure Contractors
238120: Structural Steel and Precast Concrete Contractors
238140: Masonry Contractors
238150: Glass and Glazing Contractors
238160: Roofing Contractors
238190: Other Foundation, Structure, and Building Exterior Contractors
238210: Electrical Contractors and Other Wiring Installation Contractors
238220: Plumbing, Heating and Air-Conditioning Contractors
238310: Drywall and Insulation Contractors
238320: Painting and Wall Covering Contractors
238330: Flooring Contractors
238350: Finish Carpentry Contractors
238390: Other Building Finishing Contractors
238910: Site Preparation Contractors
238990: All Other Specialty Trade Contractors
541330: Engineering Services
541350: Building Inspection Services
561621: Security Systems Services (except Locksmiths)
562910: Remediation Services