Possible NAICS Codes
238220 – Plumbing, Heating, and Air-Conditioning Contractors
561210 – Facilities Support Services
541614 – Process, Physical Distribution, and Logistics Consulting Services
236220 – Commercial and Institutional Building Construction
622110 – General Medical and Surgical Hospitals
238290 – Other Building Equipment Contractors
332913 – Plumbing Fixture Fitting and Trim Manufacturing
333120 – Construction Machinery Manufacturing
339950 – Sign Manufacturing
541380 – Testing Laboratories and Services