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  2. North American Industry Classification System - Wikipedia

    en.wikipedia.org/wiki/North_American_Industry...

    The North American Industry Classification System or NAICS (/ n eɪ k s /) [1] is a classification of business establishments by type of economic activity (the process of production). It is used by governments and business in Canada , Mexico , and the United States of America .

  3. Standard Industrial Classification - Wikipedia

    en.wikipedia.org/wiki/Standard_Industrial...

    Thus, the Standard Industrial Classification system was born. SIC codes are four-digit numerical representations of major businesses and industries. SIC codes are assigned based on common characteristics shared in the products, services, production and delivery system of a business.

  4. Industry classification - Wikipedia

    en.wikipedia.org/wiki/Industry_classification

    Industry classification or industry taxonomy is a type of economic taxonomy that classifies companies, organizations and traders into industrial groupings based on similar production processes, similar products, or similar behavior in financial markets.

  5. NAICS 21 - Wikipedia

    en.wikipedia.org/wiki/NAICS_21

    NAICS 21 is the category within the North American Industry Classification System which is composed of establishments that extract naturally occurring mineral solids(i.e. as metals, coal and other industrial minerals), liquid minerals (i.e. crude petroleum) and gases (i.e. natural gas).

  6. NAICS 11 - Wikipedia

    en.wikipedia.org/wiki/NAICS_11

    NAICS sector 11 (abbreviated to NAICS 11) is a sub-classification of economic activity that covers agriculture, forestry, fishing and hunting in the North American Industry Classification System (NAICS) system in Canada, the United States and Mexico.

  7. Statistical Classification of Economic Activities in the ...

    en.wikipedia.org/wiki/Statistical_Classification...

    Level 3: 272 groups identified by three-digit numerical codes (01.1 to 99.0); Level 4: 615 classes identified by four-digit numerical codes (01.11 to 99.00). The first four digits of the code, which is the first four levels of the classification system, are the same in all European countries. National implementations may introduce additional ...

  8. The Refinitiv Business Classification - Wikipedia

    en.wikipedia.org/wiki/The_Refinitiv_Business...

    The Refinitiv Business Classification (TRBC) is an industry classification of global companies. It was developed by the Reuters Group under the name Reuters Business Sector Scheme (RBSS), [1] [2] [3] was rebranded to Thomson Reuters Business Classification (TRBC) when the Thomson Corporation acquired the Reuters Group in 2008, forming Thomson Reuters, and was rebranded again, to The Refinitiv ...

  9. NAICS 22 - Wikipedia

    en.wikipedia.org/wiki/NAICS_22

    NAICS 22 (Utilities Sector) is the section of the NAICS system in Canada, the United States and Mexico which deals specifically with utilities in those countries. The utilities sector consists of establishments engaged in the provision of the following utility services: electric power , natural gas , steam supply, water supply, and sewage removal.