Possible NAICS Codes
541330 – Engineering Services
238210 – Electrical Contractors and Other Wiring Installation Contractors
541310 – Architectural Services
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
236220 – Commercial and Institutional Building Construction
221122 – Electric Power Distribution
238220 – Plumbing, Heating, and Air-Conditioning Contractors
334512 – Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use
561210 – Facilities Support Services