SIC Codes - Standard Industrial Classification (SIC) Codes

What is a SIC Code ?

Standard Industrial Classification (SIC) codes are four digit numerical codes assigned by the U.S. government to business establishments to identify the primary business of the establishment. The Standard Industrial Classification (SIC) is a system for classifying industries by a four-digit code. Established in the United States in 1937, it is used by government agencies to classify industry areas. The classification was developed to facilitate the collection, presentation and analysis of data; and to promote uniformity and comparability in the presentation of statistical data collected by various agencies of the federal government, state agencies and private organizations. The classification covers all economic activities.

The SIC system arrays the economy into 11 divisions, that are divided into 83 2-digit major groups, that are further subdivided into 416 3-digit industry groups, and finally disaggregated into 1,005 4-digit industries. In the United States the SIC code is being supplanted by the six-digit North American Industry Classification System (NAICS code), which was released in 1997; however certain government departments and agencies, such as the U.S. Securities and Exchange Commission (SEC), still use the SIC codes.

The SIC system is also used by agencies in other countries, e.g., by the United Kingdom's Companies House.

SIC Code Title
49 Electric, Gas and Sanitary Services
4911 Electric Services
491100 Electric services
49110000 Electric services
491199 Electric services, nec
49119901 Distribution, electric power
49119902 Generation, electric power
49119903 Transmission, electric power
49119904 Electric power broker
49119905 Electrical power marketers
49119906 Nuclear electric power generation
49119907 Fossil fuel electric power generation
49119908 Hydro electric power generation
4922 Natural Gas Transmission
492200 Natural gas transmission
49220000 Natural gas transmission
492299 Natural gas transmission, nec
49229901 Pipelines, natural gas
49229902 Storage, natural gas
4923 Gas Transmission and Distribution
492300 Gas transmission and distribution
49230000 Gas transmission and distribution
4924 Natural Gas Distribution
492400 Natural gas distribution
49240000 Natural gas distribution
492401 Gas power broker
49240100 Gas power broker
492402 Gas power marketers
49240200 Gas power marketers
4925 Gas Production and/or Distribution
492500 Gas production and/or distribution
49250000 Gas production and/or distribution
492501 Mixed natural and manufactured gas, except petroleum
49250100 Mixed natural and manufactured gas, except petroleum
49250101 Blue gas, carbureted: production and distribution
49250102 Coke oven gas, production and distribution
49250103 Coke ovens, byproduct: manufacturing or distribution of gas
49250104 Gas: mixed, natural and manufactured
49250105 Manufactured gas, production and distribution
49250106 Mixed natural and manufactured gas, distribution
49250107 Synthetic natural gas from naphtha
492599 Gas production and/or distribution, nec
49259901 Liquefied petroleum gas, distribution through mains
4931 Electric and Other Services Combined
493100 Electric and other services combined
49310000 Electric and other services combined
493199 Cogeneration of electric power
49319901 Cogeneration of electric power
4932 Gas and Other Services Combined
493200 Gas and other services combined
49320000 Gas and other services combined
4939 Combination Utilities, Nec
493900 Combination utilities, nec
49390000 Combination utilities, nec
4941 Water Supply
494100 Water supply
49410000 Water supply
4952 Sewerage Systems
495200 Sewerage systems
49520000 Sewerage systems
4953 Refuse Systems
495300 Refuse systems
49530000 Refuse systems
495301 Hazardous waste collection and disposal
49530100 Hazardous waste collection and disposal
49530101 Acid waste, collection and disposal
49530102 Chemical detoxification
49530103 Radioactive waste materials, disposal
495302 Refuse collection and disposal services
49530200 Refuse collection and disposal services
49530201 Garbage: collecting, destroying, and processing
49530202 Liquid waste, collection and disposal
49530203 Rubbish collection and disposal
49530204 Street refuse systems
495303 Nonhazardous waste disposal sites
49530300 Nonhazardous waste disposal sites
49530301 Dumps, operation of
49530302 Sanitary landfill operation
49530303 Sludge disposal sites
495399 Refuse systems, nec
49539901 Ashes, collection and disposal
49539902 Dead animal disposal
49539903 Incinerator operation
49539904 Medical waste disposal
49539905 Recycling, waste materials
49539906 Waste materials, disposal at sea
49539907 Sewage treatment facility
4959 Sanitary Services, Nec
495900 Sanitary services, nec
49590000 Sanitary services, nec
495901 Road, airport, and parking lot maintenance services
49590100 Road, airport, and parking lot maintenance services
49590101 Snowplowing
49590102 Sweeping service: road, airport, parking lot, etc.
49590103 Vacuuming of airport runways
495902 Disease control
49590200 Disease control
49590201 Malaria control
495903 Toxic or hazardous waste cleanup
49590300 Toxic or hazardous waste cleanup
49590301 Oil spill cleanup
49590302 Environmental cleanup services
495999 Sanitary services, nec, nec
49599901 Beach maintenance cleaning
49599902 Mosquito eradication
4961 Steam and Air-conditioning Supply
496100 Steam and air-conditioning supply
49610000 Steam and air-conditioning supply
496199 Steam and air-conditioning supply, nec
49619901 Air conditioning supply services
49619902 Cooled air supplier
49619903 Steam heating systems (suppliers of heat)
49619904 Steam supply systems, including geothermal
4971 Irrigation Systems
497100 Irrigation systems
49710000 Irrigation systems
497199 Irrigation systems, nec
49719901 Impounding reservoir, irrigation
49719902 Water distribution or supply systems for irrigation

What are SIC Codes used for?

  • The Security and Exchange Commission (SEC) uses SIC codes when sorting company filings.
  • Companies that operate in a certain industry use a specific SIC code when filing with the SEC so that the type of business is properly identified.
  • Identifying government contracts by their SIC description.
  • To facilitate the collection, presentation, and analysis of data.
  • To promote uniformity and comparability in the presentation of statistical data collected by various agencies of the federal government, state agencies, and private organizations.

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Why are SIC Codes important?

  • Your SIC code is often asked for on various applications and forms.
  • SIC Codes organize industries utilizing a numerical system that defines a business according to its highest revenue source at a particular location.
  • SIC Codes allow the gathering and analysis of data quickly and efficiently.
  • By identifying your company’s SIC Code, eligibility for government contracts may be realized.
  • To identify competitors, public and private.

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How to Read a SIC Code ?

For Example :

Division 20-39 Manufacturing
Major Group 25 Furniture and Fixtures
Industry Group 25 Office Furniture
Industry 2521 Wood Office Furniture

The first two digits of the code identify the major industry group, the third digit identifies the industry group and the fourth digit identifies the industry.

( Note: The digit "9" is used in the third or fourth digit position of the classification code to designate miscellaneous industries not elsewhere classified (NEC). These miscellaneous classifications are not comprised of homogeneous primary activity groups. They are grouped together and treated as a separate industry in order to retain the homogeneity of the other industries in the group. )