Industrial Classification Codes

SIC Codes / NAICS Codes

1541 / 233320 & 233310
Commercial and Industrial Building Construction
Manufacturing and Industrial Building Construction

1542 / 233320
Commercial and Institutional Building Construction

1623 / 234910 & 234920
Water, Sewer, and Pipeline Construction
Power and Communication Transmission Line Construction

1711 / 235110
Plumbing, Heating, and Air Conditioning Contractors

1731 / 235310
Electrical Contractors

1761 / 235610
Roofing, Siding, and Sheet Metal Contractors

1795 / 235940
Wrecking and Demolition

1799 / 235210, 235920, 562910, 235990
Painting and Wall Covering ContractorsGlass and Glazing ContractorsRemediation Services,
Except Environmental Remediation Services.
All Other Special Trade Contractors,
Except Base Housing Maintenance

8744 / 561210 & 562910
Facilities Support Services
Except Base Maintenance
Except Environmental Remediation Services