Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for Energy sector
- Non E - Industries not included in the energy sector
- 23 - Construction
- 237 - Heavy and civil engineering construction
- 2379 - Other heavy and civil engineering construction
- 23799 - Other heavy and civil engineering construction
- 237990 - Other heavy and civil engineering constructionUS
- Date modified: