Possible NAICS Codes
561210 – Facilities Support Services
236220 – Commercial and Institutional Building Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
811219 – Other Electronic and Precision Equipment Repair and Maintenance
238210 – Electrical Contractors and Other Wiring Installation Contractors
238990 – All Other Specialty Trade Contractors
238160 – Roofing Contractors
423850 – Service Establishment Equipment and Supplies Merchant Wholesalers
334516 – Analytical Laboratory Instrument Manufacturing
238320 – Painting and Wall Covering Contractors