2/17/2022 0 Comments Type 3 building constructionThere are also categories for professional services firms (e.g., engineering, architecture, surveying, project management). The Standard Industrial Classification and the newer North American Industry Classification System classify companies that perform or engage in construction into three subsectors: building construction, heavy and civil engineering construction, and specialty trade contractors. ENR used data on transportation, sewer, hazardous waste and water to rank firms as heavy contractors. In 2014, it split the data into nine market segments: transportation, petroleum, buildings, power, industrial, water, manufacturing, sewer/waste, telecom, hazardous waste, and a tenth category for other projects. For example, Engineering News-Record ( ENR), a US-based construction trade magazine, has compiled and reported data about the size of design and construction contractors. The industry can also be classified into sectors or markets.
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