Highway and Street Construction

Excavation and Grading

Underground Utilities

Structural Steel Buildings

Bridges - Fencing - Communications

Concrete Work

Commercial and Institutional Buildings

NAICS Codes

236220 - Commercial and Institutional building construction

237110 - Water and Sewer Line and related structures construction

237310 - Highway, Street, and Bridge construction

237990 - Other Heavy and Civil Engineering Construction

238110 - Poured Concrete Foundation and Structure Contractors

238120 - Structural Steel and Precast Concrete Contractors

238320 - Painting and Wall Covering Contractors

238910 - Site Preparation Contractors

238990 - All Other Specialty Trade Contractors

SIC Codes

1611 - Highway and Street Construction

1622 - Bridge, Tunnel, & Elevated Highway

1623 - Water, Sewer, and Utility Lines

1629 - Heavy Construction

1721 - Painting and Paper Hanging

1741 - Masonry and Other Stonework

1761 - Roofing, Siding, and Sheet Metal

1771 - Concrete Work

1791 - Structural Steel Erection

1794 - Excavation Work