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NAICS code lookup
The complete official 2022 dictionary — all 1,012 six-digit NAICS codes. Open any code for its pricing, market, competitors, and live opportunities.
237990Construction
Other Heavy and Civil Engineering Construction
Heavy and civil engineering construction not classified elsewhere — including dams, dredging, marine construction, and other heavy-civil works. Used for federal Corps of Engineers civil-works projects, port construction, and similar specialised infrastructure.
Typical value
$2M – $250M+ per award
Common set-asides
Small Business, 8(a), HUBZone, SDVOSB
Top buyers
US Army Corps of Engineers · Bureau of Reclamation · US Coast Guard · Department of Energy · Department of the Interior
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