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
52 Building Matrials, Hrdwr, Garden Supply & Mobile Home Dealrs
5211 Lumber and Other Building Materials
521100 Lumber and other building materials
52110000 Lumber and other building materials
521101 Lumber products
52110100 Lumber products
52110101 Flooring, wood
52110102 Millwork and lumber
52110103 Paneling
52110104 Planing mill products and lumber
52110105 Siding
52110106 Wallboard (composition) and paneling
521102 Door and window products
52110200 Door and window products
52110201 Doors, storm: wood or metal
52110202 Doors, wood or metal, except storm
52110203 Garage doors, sale and installation
52110204 Jalousies
52110205 Sash, wood or metal
52110206 Screens, door and window
52110207 Windows, storm: wood or metal
521103 Insulation and energy conservation products
52110300 Insulation and energy conservation products
52110301 Energy conservation products
52110302 Insulation material, building
52110303 Solar heating equipment
521104 Prefabricated buildings
52110400 Prefabricated buildings
52110401 Greenhouse kits, prefabricated
52110402 Modular homes
521105 Masonry materials and supplies
52110500 Masonry materials and supplies
52110501 Brick
52110502 Cement
52110503 Concrete and cinder block
52110504 Lime and plaster
52110505 Paving stones
52110506 Sand and gravel
52110507 Tile, ceramic
521199 Lumber and other building materials, nec
52119901 Bathroom fixtures, equipment and supplies
52119902 Cabinets, kitchen
52119903 Closets, interiors and accessories
52119904 Counter tops
52119905 Eavestroughing parts and supplies
52119906 Electrical construction materials
52119907 Fencing
52119908 Home centers
52119909 Roofing material
52119910 Structural clay products
5231 Paint, Glass, and Wallpaper Stores
523100 Paint, glass, and wallpaper stores
52310000 Paint, glass, and wallpaper stores
523101 Glass
52310100 Glass
52310101 Glass, leaded or stained
523102 Paint and painting supplies
52310200 Paint and painting supplies
52310201 Paint
52310202 Paint brushes, rollers, sprayers and other supplies
523103 Wallcoverings
52310300 Wallcoverings
52310301 Wallpaper
5251 Hardware Stores
525100 Hardware stores
52510000 Hardware stores
525101 Tools
52510100 Tools
52510101 Chainsaws
52510102 Snowblowers
52510103 Tools, hand
52510104 Tools, power
525199 Hardware stores, nec
52519901 Builders' hardware
52519902 Door locks and lock sets
52519903 Pumps and pumping equipment
5261 Retail Nurseries and Garden Stores
526100 Retail nurseries and garden stores
52610000 Retail nurseries and garden stores
526101 Lawn and garden equipment
52610100 Lawn and garden equipment
52610101 Garden tractors and tillers
52610102 Hydroponic equipment and supplies
52610103 Lawnmowers and tractors
526102 Lawn and garden supplies
52610200 Lawn and garden supplies
52610201 Fertilizer
52610202 Fountains, outdoor
52610203 Garden supplies and tools, nec
52610204 Sod
52610205 Top soil
52610206 Lawn ornaments
526103 Retail nurseries
52610300 Retail nurseries
52610301 Christmas trees (natural)
52610302 Nursery stock, seeds and bulbs
5271 Mobile Home Dealers
527100 Mobile home dealers
52710000 Mobile home dealers
527199 Mobile home dealers, nec
52719901 Mobile home equipment
52719902 Mobile home parts and accessories
52719903 Mobile offices and commercial units

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. )