NAICS Code for Civil Engineering
The primary NAICS code for Civil Engineering is 237990 — Other Heavy and Civil Engineering Construction. Businesses classified under NAICS 237990 (Other Heavy and Civil Engineering Construction) are involved in: heavy and civil engineering construction projects (excluding highway, street, bridge, and distribution line construction). The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialty trade contractors are included in this industry if they are engaged in activities primarily related to heavy and civil engineering construction projects (excluding highway, street, bridge, distribution line, oil and gas structure, and utilities building and structure construction). Construction projects involving water resources (such as dredging and land drainage), development of marine facilities, and projects involving open space improvement (such as parks and trails) are included in this industry. Typical activities include: Building and structure construction), Heavy and civil engineering construction projects (excluding highway, Street, Bridge, Distribution line construction). Related codes include 237 (Heavy and Civil Engineering Construction), 321215 (Engineered Wood Member Manufacturing), 333618 (Other Engine Equipment Manufacturing).
Primary NAICS Code
237990Other Heavy and Civil Engineering ConstructionAlso commonly classified as:
23799Other Heavy and Civil Engineering Construction2379Other Heavy and Civil Engineering ConstructionAbout Civil Engineering
Businesses classified under NAICS 237990 (Other Heavy and Civil Engineering Construction) are involved in: heavy and civil engineering construction projects (excluding highway, street, bridge, and distribution line construction). The work performed may include new work, reconstruction, rehabilitation, and repairs. Specialty trade contractors are included in this industry if they are engaged in activities primarily related to heavy and civil engineering construction projects (excluding highway, street, bridge, distribution line, oil and gas structure, and utilities building and structure construction). Construction projects involving water resources (such as dredging and land drainage), development of marine facilities, and projects involving open space improvement (such as parks and trails) are included in this industry.
Typical Business Activities
What's Included
- +Building and structure construction)
- +Heavy and civil engineering construction projects (excluding highway
- +Street
- +Bridge
- +Distribution line construction)
How to Determine Your NAICS Code
While 237990 (Other Heavy and Civil Engineering Construction) is the most common classification for civil engineering, your specific code depends on your primary revenue-generating activity. Review the included and excluded activities above to confirm this code fits your business. If your operations span multiple categories, use the code that best represents your largest source of revenue. You can also use the search tool below to describe your specific business activities and find the most accurate match.
Related NAICS Codes
Businesses in civil engineering may also fall under these codes:
Example Companies
Bechtel
Bechtel Corporation is an American engineering, procurement, construction, and project management company engaged in delivering complex infrastructure and engineering projects.
Reston, Virginia, United States
Webuild
Webuild S.p. A. (previously Salini Impregilo S.p. A. ) is an Italian industrial group specialising in construction and civil engineering.
Milan, Lombardy, Italy
Eiffage
Eiffage S. A. is a French civil engineering construction company.
Asnières-sur-Seine, Ile-de-France, France
Describe Your Business
Need a more specific NAICS code? Search by your business activity or company name: