Possible NAICS Codes
236220 – Commercial and Institutional Building Construction
561210 – Facilities Support Services
237310 – Highway, Street, and Bridge Construction
238160 – Roofing Contractors
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238990 – All Other Specialty Trade Contractors
237130 – Power and Communication Line and Related Structures Construction
238290 – Other Building Equipment Contractors
541330 – Engineering Services
238210 – Electrical Contractors and Other Wiring Installation Contractors