NAICS

NAICS Codes

236220

Commercial and Institutional Building Construction

236210

Industrial Building Construction

238160

Roofing Contractors

238220

Plumbing, Heating, and Air-Conditioning Contractors

238210

Electrical Contractors and Other Wiring Installation Contractors

238120

Structural Steel and Precast Concrete Contractors

238190

Other Foundation, Structure, and Building Exterior Contractors

238990

All Other Specialty Trade Contractors

221310

Water Supply and Irrigation Systems

562910

Remediation Services

541620

Environmental Consulting Services

561210

Facilities Support Services

561720

Janitorial Services

811310

Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance