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Gift Shops: NAICS/SIC


  • Developed in the 1930s, the Standard Industrial Classification (SIC) code is a 4-digit scheme that organizes 1,004 industries. Some 400 of these are services.
  • Developed in 1997, the North American Industrial Classification System (NAICS), is a six-digit scheme that organizes 1,170 industries, of which 565 are services. Many of the NAICS industries emerged over the past 20 years.

For more information, see:

What is the Difference Between SIC and NAICS Codes?

  • As industries developed over the 20th century, the invention of new products/services warranted the creation of a classification scheme that could be expanded easily.
  • The five digits of the NAICS system reflect this and future expansions. 

Why are NAICS and SIC Codes Important?

  • SIC and NAICS Codes:
    • bring together disparate information on an industry under a common designation
    • provide researchers with designations for industries that can be used across cultures, languages, and geographical areas 
  • Government and private industry and financial sources arrange industry data under SIC or NAICS assigned to that industry.
  • To be able to find pertinent data, researchers must first identify the SIC or NAICS codes for an industry.
  • SIC and NAICS codes are like call numbers that are assigned to books in libraries or street numbers assigned to people's homes.

Selected NAICS Codes

  • You will needs NAICS codes to search for industry data in the US Census and other sites.

Selected SIC Codes