Possible NAICS Codes
238990 – All Other Specialty Trade Contractors
811310 – Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance
237990 – Other Heavy and Civil Engineering Construction
238210 – Electrical Contractors and Other Wiring Installation Contractors
221111 – Hydroelectric Power Generation
237110 – Water and Sewer Line and Related Structures Construction
237130 – Power and Communication Line and Related Structures Construction
238220 – Plumbing, Heating, and Air-Conditioning Contractors
332911 – Industrial Valve Manufacturing
333995 – Fluid Power Cylinder and Actuator Manufacturing