Possible NAICS Codes
237110 – Water and Sewer Line and Related Structures Construction
236220 – Commercial and Institutional Building Construction
238990 – All Other Specialty Trade Contractors
561210 – Facilities Support Services
238220 – Plumbing, Heating, and Air-Conditioning Contractors
238910 – Site Preparation Contractors
236210 – Industrial Building Construction
562991 – Septic Tank and Related Services
237990 – Other Heavy and Civil Engineering Construction
221310 – Water Supply and Irrigation Systems