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
33 Primary Metal Industries
3312 Blast Furnaces and Steel Mills
331200 Blast furnaces and steel mills
33120000 Blast furnaces and steel mills
331201 Chemicals and other products derived from coking
33120100 Chemicals and other products derived from coking
33120103 Beehive coke oven products
33120104 Coal gas, derived from chemical recovery coke ovens
33120105 Coal tar crudes, derived from chemical recovery coke ovens
33120106 Coke oven products (chemical recovery), nec
33120107 Coke, produced in beehive ovens
33120108 Coke, produced in chemical recovery coke ovens
33120109 Distillates, from chemical recovery coke ovens
33120110 Light oil crude, from chemical recovery coke ovens
331202 Blast furnace and related products
33120200 Blast furnace and related products
33120201 Iron, pig
33120202 Sponge iron
331203 Primary finished or semifinished shapes
33120300 Primary finished or semifinished shapes
33120301 Billets, steel
33120302 Blooms, steel
33120303 Ingots, steel
33120304 Slabs, steel
331204 Structural and rail mill products
33120400 Structural and rail mill products
33120401 Rail joints or fastenings
33120402 Railroad crossings, steel or iron
33120403 Rails, rerolled or renewed
33120404 Rails, steel or iron
33120405 Structural shapes and pilings, steel
331205 Bar, rod, and wire products
33120500 Bar, rod, and wire products
33120501 Bars and bar shapes, steel, cold-finished: own hot-rolled
33120502 Bars and bar shapes, steel, hot-rolled
33120503 Bars, iron: made in steel mills
33120504 Rods, iron and steel: made in steel mills
33120505 Wire products, steel or iron
331206 Pipes and tubes
33120600 Pipes and tubes
33120601 Pipes, iron and steel
33120602 Tubes, steel and iron
331207 Plate, sheet and strip, except coated products
33120700 Plate, sheet and strip, except coated products
33120701 Armor plate
33120702 Plate, steel
33120703 Sheet or strip, steel, cold-rolled: own hot-rolled
33120704 Sheet or strip, steel, hot-rolled
331208 Tool and die steel and alloys
33120800 Tool and die steel and alloys
33120801 Ferroalloys, produced in blast furnaces
33120802 Stainless steel
33120803 Tool and die steel
331209 Wheels
33120900 Wheels
33120901 Locomotive wheels, rolled
33120902 Wheels, locomotive and car: iron and steel
331210 Coated or plated products
33121000 Coated or plated products
33121001 Black plate
33121002 Galvanized pipes, plates, sheets, etc.: iron and steel
33121003 Plate, terne
33121004 Tinplate
331299 Blast furnaces and steel mills, nec
33129901 Axles, rolled or forged: made in steel mills
33129902 Electrometallurgical steel
33129903 Fence posts, iron and steel
33129904 Forgings, iron and steel
33129905 Hoops, iron and steel
33129906 Iron and steel products, hot-rolled
33129907 Sinter, iron
33129908 Tin-free steel
33129909 Well casings, iron and steel: made in steel mills
3313 Electrometallurgical Products
331300 Electrometallurgical products
33130000 Electrometallurgical products
331301 Manganese alloys
33130100 Manganese alloys
33130101 Ferromanganese, not made in blast furnaces
33130102 Manganese metal, not made in blast furnaces
331302 Ferroalloys
33130200 Ferroalloys
33130201 Alloys, additive, except copper: not made in blast furnaces
33130202 Ferrochromium
33130203 Ferromolybdenum
33130205 Ferrosilicon, not made in blast furnaces
33130206 Ferrotitanium
33130208 Ferrovanadium
331399 Electrometallurgical products, nec
33139901 Molybdenum silicon, not made in blast furnaces
33139902 Tungsten carbide powder
3315 Steel Wire and Related Products
331500 Steel wire and related products
33150000 Steel wire and related products
331501 Fencing made in wiredrawing plants
33150100 Fencing made in wiredrawing plants
33150101 Chain link fencing
33150102 Fence gates, posts, and fittings: steel
331502 Nails, spikes, brads, and similar items
33150200 Nails, spikes, brads, and similar items
33150201 Brads, steel: wire or cut
33150202 Nails, steel: wire or cut
33150203 Paper clips, steel
33150204 Spikes, steel: wire or cut
33150205 Staples, steel: wire or cut
33150206 Tacks, steel: wire or cut
331503 Wire and fabricated wire products
33150300 Wire and fabricated wire products
33150301 Barbed and twisted wire
33150302 Baskets, steel wire
33150303 Cable, steel: insulated or armored
33150304 Hangers (garment), wire
33150305 Welded steel wire fabric
33150306 Wire carts: grocery, household, and industrial
33150307 Wire products, ferrous/iron: made in wiredrawing plants
33150308 Wire, ferrous/iron
33150309 Wire, steel: insulated or armored
3316 Cold Finishing of Steel Shapes
331600 Cold finishing of steel shapes
33160000 Cold finishing of steel shapes
331601 Cold-rolled strip or wire
33160100 Cold-rolled strip or wire
33160101 Strip, steel, cold-rolled, nec: from purchased hot-rolled,
33160102 Strip, steel, flat bright, cold-rolled: purchased hot-rolled
33160103 Strip, steel, razor blade, cold-rolled: purchased hot-rolled
33160104 Wire, flat, cold-rolled strip: not made in hot-rolled mills
331699 Cold finishing of steel shapes, nec
33169901 Bars, steel, cold finished, from purchased hot-rolled
33169902 Corrugating iron and steel, cold-rolled
33169903 Sheet, steel, cold-rolled, nec: from purchased hot-rolled
3317 Steel Pipe and Tubes
331700 Steel pipe and tubes
33170000 Steel pipe and tubes
331701 Seamless pipes and tubes
33170100 Seamless pipes and tubes
33170101 Pipes, seamless steel
33170102 Tubes, seamless steel
33170103 Tubing, mechanical or hypodermic sizes: cold drawn stainless
331702 Welded pipe and tubes
33170200 Welded pipe and tubes
33170201 Boiler tubes (wrought)
33170202 Conduit: welded, lock joint, or heavy riveted
33170203 Pipes, wrought: welded, lock joint, or heavy riveted
33170204 Tubes, wrought: welded or lock joint
33170205 Well casing, wrought: welded, lock joint, or heavy riveted
3321 Gray and Ductile Iron Foundries
332100 Gray and ductile iron foundries
33210000 Gray and ductile iron foundries
332101 Cast iron pipe and fittings
33210100 Cast iron pipe and fittings
33210101 Pressure pipe and fittings, cast iron
33210102 Sewer pipe, cast iron
33210103 Soil pipe and fittings: cast iron
33210104 Water pipe, cast iron
332199 Gray and ductile iron foundries, nec
33219901 Cooking utensils, cast iron
33219902 Ductile iron castings
33219903 Gray iron castings, nec
33219904 Gray iron ingot molds, cast
33219905 Manhole covers, metal
33219906 Railroad car wheels and brake shoes, cast iron
33219907 Rolling mill rolls, cast iron
3322 Malleable Iron Foundries
332200 Malleable iron foundries
33220000 Malleable iron foundries
3324 Steel Investment Foundries
332400 Steel investment foundries
33240000 Steel investment foundries
332499 Steel investment foundries, nec
33249901 Aerospace investment castings, ferrous
33249902 Commercial investment castings, ferrous
3325 Steel Foundries, Nec
332500 Steel foundries, nec
33250000 Steel foundries, nec
332599 Steel foundries, nec, nec
33259901 Alloy steel castings, except investment
33259902 Bushings, cast steel: except investment
33259903 Railroad car wheels, cast steel
33259904 Rolling mill rolls, cast steel
3331 Primary Copper
333100 Primary copper
33310000 Primary copper
333101 Primary copper smelter products
33310100 Primary copper smelter products
33310101 Blister copper
33310102 Pigs, copper
333102 Refined primary copper products
33310200 Refined primary copper products
33310201 Bars (primary), copper
33310202 Billets (primary), copper
33310203 Blocks, copper
33310204 Cakes (primary), copper
33310205 Cathodes (primary), copper
33310206 Ingots and ingot bars (primary), copper
3334 Primary Aluminum
333400 Primary aluminum
33340000 Primary aluminum
333401 Aluminum ingots and slabs
33340100 Aluminum ingots and slabs
33340101 Ingots (primary), aluminum
33340102 Slabs (primary), aluminum
333499 Primary aluminum, nec
33349901 Pigs, aluminum
3339 Primary Nonferrous Metals, Nec
333900 Primary nonferrous metals, nec
33390000 Primary nonferrous metals, nec
333901 Lead and zinc
33390100 Lead and zinc
33390101 Antifriction bearing metals, lead-base
33390102 Lead smelting and refining (primary)
33390103 Zinc refining (primary), including slabs & dust
33390104 Zinc smelting (primary), including zinc residue
333902 Precious metals
33390200 Precious metals
33390201 Gold refining (primary)
33390202 Platinum group metal refining (primary)
33390203 Silver refining (primary)
333903 Silicon and chromium
33390300 Silicon and chromium
33390301 Chromium refining (primary)
33390302 Silicon refining (primary, over 99% pure)
33390303 Silicon, epitaxial (silicon alloy)
33390304 Silicon, pure
333999 Primary nonferrous metals, nec, nec
33399901 Antimony refining (primary)
33399902 Babbitt metal (primary)
33399903 Beryllium metal
33399904 Bismuth refining (primary)
33399905 Cadmium refining (primary)
33399906 Cobalt refining (primary)
33399907 Columbian refining (primary)
33399908 Germanium refining (primary)
33399910 Magnesium refining (primary)
33399911 Nickel refining (primary)
33399912 Rhenium refining (primary)
33399914 Tantalum refining
33399915 Tellurium refining (primary)
33399916 Tin refining (primary)
33399917 Tin-base alloys (primary)
33399918 Titanium metal, sponge and granules
33399919 Zirconium metal, sponge and granules
3341 Secondary Nonferrous Metals
334100 Secondary nonferrous metals
33410000 Secondary nonferrous metals
334101 Secondary lead and zinc
33410100 Secondary lead and zinc
33410101 Lead smelting and refining (secondary)
33410102 Zinc smelting and refining (secondary)
334102 Secondary precious metals
33410200 Secondary precious metals
33410201 Gold smelting and refining (secondary)
33410202 Platinum group metals, smelting and refining (secondary)
33410203 Silver recovery from used photographic film
33410204 Silver smelting and refining (secondary)
334199 Secondary nonferrous metals, nec
33419901 Aluminum smelting and refining (secondary)
33419902 Babbitt metal smelting and refining (secondary)
33419903 Brass smelting and refining (secondary)
33419904 Bronze smelting and refining (secondary)
33419905 Copper smelting and refining (secondary)
33419906 Detinning of cans and scrap
33419909 Magnesium smelting and refining (secondary)
33419910 Nickel smelting and refining (secondary)
33419911 Recovery and refining of nonferrous metals
33419913 Tin smelting and refining (secondary)
3351 Copper Rolling and Drawing
335100 Copper rolling and drawing
33510000 Copper rolling and drawing
335101 Copper and copper alloy sheet, strip, plate, and products
33510100 Copper and copper alloy sheet, strip, plate, and products
33510101 Bands, copper and copper alloy
33510102 Cups, primer and cartridge: copper and copper alloy
33510103 Plates, copper and copper alloy
33510104 Sheets, copper and copper alloy
33510105 Strip, copper and copper alloy
335102 Copper and copper alloy pipe and tube
33510200 Copper and copper alloy pipe and tube
33510201 Copper pipe
33510202 Pipe, brass and bronze
33510203 Tubing, copper and copper alloy
335199 Copper rolling and drawing, nec
33519901 Bars and bar shapes, copper and copper alloy
33519902 Brass rolling and drawing
33519903 Bronze rolling and drawing
33519904 Extruded shapes, nec, copper and copper alloy
33519905 Rails, copper and copper alloy
33519906 Rolled or drawn shapes, nec, copper and copper alloy
33519907 Wire, copper and copper alloy
3353 Aluminum Sheet, Plate, and Foil
335300 Aluminum sheet, plate, and foil
33530000 Aluminum sheet, plate, and foil
335301 Aluminum sheet and strip
33530100 Aluminum sheet and strip
33530101 Coils, sheet aluminum
33530102 Flat rolled shapes, nec, aluminum
335399 Aluminum sheet, plate, and foil, nec
33539901 Foil, aluminum
33539902 Plates, aluminum
33539903 Tubes, welded, aluminum
3354 Aluminum Extruded Products
335400 Aluminum extruded products
33540000 Aluminum extruded products
335401 Aluminum rod and bar
33540100 Aluminum rod and bar
33540101 Bars, extruded, aluminum
33540102 Coils, rod, extruded, aluminum
33540103 Rods, extruded, aluminum
335402 Aluminum pipe and tube
33540200 Aluminum pipe and tube
33540201 Pipe, extruded, aluminum
33540203 Tube, extruded or drawn, aluminum
335499 Aluminum extruded products, nec
33549901 Shapes, extruded aluminum, nec
3355 Aluminum Rolling and Drawing, Nec
335500 Aluminum rolling and drawing, nec
33550000 Aluminum rolling and drawing, nec
335501 Aluminum wire and cable
33550100 Aluminum wire and cable
33550101 Cable, aluminum: made in rolling mills
33550102 Coils, wire aluminum: made in rolling mills
33550103 Wire, aluminum: made in rolling mills
335502 Aluminum rod and bar
33550200 Aluminum rod and bar
33550201 Bars, rolled, aluminum
33550202 Rods, rolled, aluminum
335503 Aluminum ingot
33550300 Aluminum ingot
33550301 Extrusion ingot, aluminum: made in rolling mills
335504 Aluminum rail and structural shapes
33550400 Aluminum rail and structural shapes
33550401 Rails, rolled and drawn, aluminum
33550402 Structural shapes, rolled, aluminum
335599 Aluminum rolling and drawing, nec, nec
33559901 Slugs, aluminum
3356 Nonferrous Rolling and Drawing, Nec
335600 Nonferrous rolling and drawing, nec
33560000 Nonferrous rolling and drawing, nec
335601 Lead and zinc
33560100 Lead and zinc
33560101 Lead and lead alloy bars, pipe, plates, shapes, etc.
33560102 Lead and lead alloy: rolling, drawing, or extruding
33560103 Zinc and zinc alloy bars, plates, sheets, etc.
33560104 Zinc and zinc alloy: rolling, drawing, or extruding
335602 Precious metals
33560200 Precious metals
33560201 Gold and gold alloy bars, sheets, strip, etc.
33560202 Gold and gold alloy: rolling, drawing, or extruding
33560203 Platinum group metals: rolling, drawing, or extruding
33560204 Silver and silver alloy bars, rods, sheets, etc.
33560205 Silver and silver alloy: rolling, drawing, or extruding
335603 Magnesium
33560300 Magnesium
33560301 Magnesium and magnesium alloy bars, sheets, shapes, etc.
33560302 Magnesium and magnesium alloy: rolling, drawing,or extruding
335604 Nickel
33560400 Nickel
33560401 Nickel and nickel alloy pipe, plates, sheets, etc.
33560402 Nickel and nickel alloy: rolling, drawing, or extruding
335605 Tin
33560500 Tin
33560501 Tin and tin alloy bars, pipe, sheets, etc.
33560502 Tin and tin alloy: rolling, drawing, or extruding
335606 Titanium
33560600 Titanium
33560601 Titanium and titanium alloy bars, sheets, strip, etc.
33560602 Titanium and titanium alloy: rolling, drawing, or extruding
335607 Zirconium
33560700 Zirconium
33560701 Zirconium and zirconium alloy bars, sheets, strip, etc.
33560702 Zirconium and zirconium alloy: rolling, drawing,or extruding
335699 Nonferrous rolling and drawing, nec, nec
33569901 Battery metal
33569902 Solder: wire, bar, acid core, and rosin core
33569903 Tungsten, basic shapes
33569904 Welding rods
3357 Nonferrous Wiredrawing and Insulating
335700 Nonferrous wiredrawing and insulating
33570000 Nonferrous wiredrawing and insulating
335701 Communication wire
33570100 Communication wire
33570101 Coaxial cable, nonferrous
33570102 Fiber optic cable (insulated)
335799 Nonferrous wiredrawing and insulating, nec
33579901 Aircraft wire and cable, nonferrous
33579902 Aluminum wire and cable
33579903 Appliance fixture wire, nonferrous
33579904 Automotive wire and cable, except ignition sets: nonferrous
33579905 Building wire and cable, nonferrous
33579906 Magnet wire, nonferrous
33579907 Shipboard cable, nonferrous
3363 Aluminum Die-castings
336300 Aluminum die-castings
33630000 Aluminum die-castings
3364 Nonferrous Die-castings Except Aluminum
336400 Nonferrous die-castings except aluminum
33640000 Nonferrous die-castings except aluminum
336401 Copper and copper alloy die-castings
33640100 Copper and copper alloy die-castings
33640101 Brass and bronze die-castings
336402 Lead and zinc die-castings
33640200 Lead and zinc die-castings
33640201 Lead die-castings
33640202 Zinc and zinc-base alloy die-castings
336499 Nonferrous die-castings except aluminum, nec
33649901 Magnesium and magnesium-base alloy die-castings
33649902 Titanium die-castings
3365 Aluminum Foundries
336500 Aluminum foundries
33650000 Aluminum foundries
336501 Utensils, cast aluminum
33650100 Utensils, cast aluminum
33650101 Cooking/kitchen utensils, cast aluminum
33650102 Hospital utensils, cast aluminum
33650103 Household utensils, cast aluminum
336502 Aluminum and aluminum-based alloy castings
33650200 Aluminum and aluminum-based alloy castings
33650201 Aerospace castings, aluminum
33650202 Machinery castings, aluminum
336599 Aluminum foundries, nec
33659901 Masts, cast aluminum
3366 Copper Foundries
336600 Copper foundries
33660000 Copper foundries
336601 Bushings and bearings
33660100 Bushings and bearings
33660101 Bushings and bearings, brass (nonmachined)
33660102 Bushings and bearings, bronze (nonmachined)
33660103 Bushings and bearings, copper (nonmachined)
336602 Propellers
33660200 Propellers
33660201 Propellers, ship, nsk
33660202 Propellers, ship: cast brass
33660203 Propellers, ship: cast bronze
336699 Copper foundries, nec
33669901 Brass foundry, nec
33669902 Bronze foundry, nec
33669903 Castings (except die), nec, brass
33669904 Castings (except die), nec, bronze
33669905 Castings (except die), nec, copper and copper-base alloy
33669906 Castings (except die), nsk
33669907 Machinery castings, brass
33669908 Machinery castings, copper or copper-base alloy
3369 Nonferrous Foundries, Nec
336900 Nonferrous foundries, nec
33690000 Nonferrous foundries, nec
336901 Lead, zinc, and white metal
33690100 Lead, zinc, and white metal
33690101 Lead castings, except die-castings
33690102 White metal castings (lead, tin, antimony), except die
33690103 Zinc and zinc-base alloy castings, except die-castings
336999 Nonferrous foundries, nec, nec
33699901 Aerospace castings, nonferrous: except aluminum
33699902 Castings, except die-castings, precision
33699903 Machinery castings, exc. die, nonferrous, exc. alum. copper
33699904 Magnesium and magnes.-base alloy castings, exc. die-casting
33699905 Titanium castings, except die-casting
3398 Metal Heat Treating
339800 Metal heat treating
33980000 Metal heat treating
339899 Metal heat treating, nec
33989901 Annealing of metal
33989902 Brazing (hardening) of metal
33989903 Metal burning
33989904 Shot peening (treating steel to reduce fatigue)
33989905 Tempering of metal
3399 Primary Metal Products
339900 Primary metal products
33990000 Primary metal products
339901 Metal powders, pastes, and flakes
33990100 Metal powders, pastes, and flakes
33990101 Aluminum atomized powder
33990102 Flakes, metal
33990103 Iron, powdered
33990104 Paste, metal
33990105 Powder, metal
33990106 Silver powder
339902 Metal fasteners
33990200 Metal fasteners
33990201 Brads: aluminum, brass, or other nonferrous metal or wire
33990202 Nails: aluminum, brass, or other nonferrous metal or wire
33990203 Spikes, nonferrous metal or wire
33990204 Staples, nonferrous metal or wire
33990205 Tacks, nonferrous metal or wire
339999 Primary metal products, nec
33999901 Iron ore recovery from open hearth slag
33999902 Laminating steel
33999903 Reclaiming ferrous metals from clay
33999904 Steel balls
33999905 Thermite
33999906 Cryogenic treatment of metal
 

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. )