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
45 Transportation by Air
4512 Air Transportation, Scheduled
451200 Air transportation, scheduled
45120000 Air transportation, scheduled
451299 Air transportation, scheduled, nec
45129901 Air cargo carrier, scheduled
45129902 Air passenger carrier, scheduled
45129903 Helicopter carrier, scheduled
4513 Air Courier Services
451300 Air courier services
45130000 Air courier services
451399 Air courier services, nec
45139901 Letter delivery, private air
45139902 Package delivery, private air
45139903 Parcel delivery, private air
4522 Air Transportation, Nonscheduled
452200 Air transportation, nonscheduled
45220000 Air transportation, nonscheduled
452201 Nonscheduled charter services
45220100 Nonscheduled charter services
45220101 Air passenger carriers, nonscheduled
45220102 Flying charter service
45220103 Sightseeing airplane service
452299 Air transportation, nonscheduled, nec
45229901 Air cargo carriers, nonscheduled
45229902 Air taxis
45229903 Ambulance services, air
45229904 Helicopter carriers, nonscheduled
4581 Airports, Flying Fields, and Services
458100 Airports, flying fields, and services
45810000 Airports, flying fields, and services
458101 Hangars and other aircraft storage facilities
45810100 Hangars and other aircraft storage facilities
45810101 Aircraft storage at airports
45810102 Airport hangar rental
45810103 Hangar operation
458102 Aircraft maintenance and repair services
45810200 Aircraft maintenance and repair services
45810201 Aircraft cleaning and janitorial service
45810202 Aircraft servicing and repairing
45810203 Aircraft upholstery repair
458103 Airports and flying fields
45810300 Airports and flying fields
45810301 Airport
45810302 Flying field, except those maintained by clubs
45810303 Military flying field
458199 Airports, flying fields, and services, nec
45819901 Air freight handling at airports
45819902 Airport control tower operation, except government
45819903 Airport leasing, if operating airport
45819904 Airport terminal services
45819905 Airfreight loading and unloading services
45819906 Fixed base operator

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. )