# Standard Industrial Classification

The Standard Industrial Classification (SIC) is a system for classifying industries by a four-digit code as a method of standardizing industry classification for statistical purposes across agencies. Established in the United States in 1937, it is used by government agencies to classify industry areas. Similar SIC systems are also used by agencies in other countries, e.g., by the United Kingdom's Companies House.
In the United States, the SIC system was last revised in 1987 and was last used by the Census Bureau for the 1992 Economic Census, and has been replaced by the North American Industry Classification System (NAICS code), which was released in 1997. Some U.S. government departments and agencies, such as the U.S. Securities and Exchange Commission (SEC), continue to use SIC codes.
The SIC code for an establishment, that is, a unique business with a registered U.S. headquarters, was determined by the industry appropriate for the overall largest product lines of the company or organization of which the establishment was a part. The later NAICS classification system has a different concept, assigning establishments into categories based on each one's output.

## History

The first edition of SIC was published in parts during 1938–1940, with revisions made in 1941–1942. The next edition was published in two parts in 1945 and 1949. Further revisions were issued in 1957, 1963, 1967, 1972, 1977, and 1987.
The SIC code system has been used since the 1930s. It was developed by the Interdepartmental Committee on Industrial Statistics, established by the Central Statistical Board who developed the List of Industries for manufacturing, published in 1938, and the 1939 List of Industries for non-manufacturing industries, which became the first Standard Industrial Classification for the United States. The SIC system was last revised in 1987 and was last used by the Census Bureau for the 1992 Economic Census.
The Office of Management and Budget, or OMB, was tasked with revising the SIC system to reflect changing economic conditions. The OMB established the Economic Classification Policy Committee in 1992 to develop a new system representative of the current industrial climate. The result was the North American Industry Classification System, or NAICS, a collaborative effort between Canada, the U.S. and Mexico. NAICS replaced the four-digit SIC code with a six-digit code, and it provided more flexibility in handling emerging industries (for example, the NAICS system more generally allows for "Other..." categories across industry groups). The new codes were implemented in Canada and the United States in 1997 and in Mexico one year later.
NAICS classified establishments (workplace) by their main output, instead of classifying them with the larger firm or organization of which the establishment was a part. This gives more precise information on establishment and worker activities than the SIC system, but changed the meaning of the classifications somewhat, making some time series of data hard to sustain accurately. Fort and Klimek (2016) found using longitudinal data on establishments that the switch from SIC to NAICS reclassified large numbers of workers differently by industry/sector than NAICS does, notably by reclassifying some from the Manufacturing sector into Services.

## Purpose

In the early 1900s, each branch of United States government agencies conducted business analysis using its own methods and metrics, unknown and meaningless to other branches. In the 1930s, the government needed standardized and meaningful methods to measure, analyze and share data across its various agencies. Thus, the Standard Industrial Classification system was born. SIC codes are four-digit numerical representations of major businesses and industries. SIC codes are assigned based on common characteristics shared in the products, services, production and delivery system of a business.

## Structure

SIC codes have a hierarchical, top-down structure that begins with general characteristics and narrows down to the specifics. The first two digits of the code represent the major industry sector to which a business belongs. The third and fourth digits describe the sub-classification of the business group and specialization, respectively. For example, "36" refers to a business that deals in "Electronic and Other Equipment." Adding "7" as a third digit to get "367" indicates that the business operates in "Electronic, Component and Accessories." The fourth digit distinguishes the specific industry sector, so a code of "3672" indicates that the business is concerned with "Printed Circuit Boards."

## Uses

The U.S. Census Bureau, Bureau of Labor Statistics, Internal Revenue Service and Social Security Administration utilize SIC codes in their reporting, although SIC codes are also used in academic and business sectors. The Bureau of Labor Statistics updates the codes every three years and uses SIC to report on work force, wages and pricing issues. The Social Security Administration assigns SIC codes to businesses based on the descriptions provided by employers under the primary business activity entry on employer ID applications.

## Limitations

Over the years, the U.S. Census has identified three major limitations to using the SIC system. The first limitation surrounds its definition and mistaken classification of employee groups. For example, administrative assistants in the automotive industry support all levels of the business, yet the SIC defines these employees as part of the "Basic Sector" of manufacturing jobs when they should be reported as "Non-Basic." Secondly, SIC codes were developed for traditional industries prior to 1970. Business has changed considerably since then from manufacturing-based to mostly service-based. As a result, and thirdly the SIC has been slow to recognize new and emerging industries, such as those in the computer, software, and information technology sectors.

## Codes
### Range

The SIC codes can be grouped into progressively broader industry classifications: industry group, major group, and division. The first 3 digits of the SIC code indicate the industry group, and the first two digits indicate the major group. Each division encompasses a range of SIC codes:
| Range of SIC Codes | Division |
| 0100-0999 | Agriculture, Forestry and Fishing |
| 1000-1499 | Mining |
| 1500-1799 | Construction |
| 1800-1999 | not used |
| 2000-3999 | Manufacturing |
| 4000-4999 | Transportation, Communications, Electric, Gas and Sanitary service |
| 5000-5199 | Wholesale Trade |
| 5200-5999 | Retail Trade |
| 6000-6799 | Finance, Insurance and Real estate |
| 7000-8999 | Services |
| 9100-9729 | Public administration |
| 9900-9999 | Nonclassifiable |
To look at a particular example of the hierarchy, SIC code 2024 (ice cream and frozen desserts) belongs to industry group 202 (dairy products), which is part of major group 20 (food and kindred products), which belongs to the division of manufacturing.

### List

The following table is from the SEC's website, which allows searching for companies by SIC code in its database of filings. The acronym NEC stands for "not elsewhere classified".
| SIC Code | Industry |
| 0100 (01111...) | Agricultural Production-Crops |
| 0200 | Agricultural Prod-Livestock & Animal Specialties |
| 0700 | Agricultural Services |
| 0800 | Forestry |
| 0900 | Fishing, Hunting and Trapping |
| 1000 | Metal Mining |
| 1040 | Gold and Silver Ores |
| 1090 | Miscellaneous Metal Ores |
| 1220 | Bituminous Coal & Lignite Mining |
| 1221 | Bituminous Coal & Lignite Surface Mining |
| 1311 | Crude Petroleum & Natural Gas |
| 1381 | Drilling Oil & Gas Wells |
| 1382 | Oil & Gas Field Exploration Services |
| 1389 | Oil & Gas Field Services, NEC |
| 1400 | Mining & Quarrying of Nonmetallic Minerals (No Fuels) |
| 1520 | General Bldg Contractors - Residential Bldgs |
| 1531 | Operative Builders |
| 1540 | General Bldg Contractors - Nonresidential Bldgs |
| 1600 | Heavy Construction Other Than Bldg Const - Contractors |
| 1623 | Water, Sewer, Pipeline, Comm & Power Line Construction |
| 1629 | Heavy Construction, Not Elsewhere Classified |
| 1700 | Construction - Special Trade Contractors |
| 1731 | Electrical Work |
| 2000 | Food and Kindred Products |
| 2011 | Meat packing plants |
| 2013 | Sausages & Other Prepared Meat Products |
| 2015 | Poultry Slaughtering and Processing |
| 2020 | Dairy Products |
| 2024 | Ice cream & frozen desserts |
| 2030 | Canned, Frozen & Preserved Fruit, Veg & Food Specialties |
| 2033 | Canned, Fruits, Veg, Preserves, Jams & Jellies |
| 2040 | Grain Mill Products |
| 2050 | Bakery Products |
| 2052 | Cookies & Crackers |
| 2060 | Sugar & Confectionery Products |
| 2070 | Fats & Oils |
| 2080 | Beverages |
| 2082 | Malt Beverages |
| 2086 | Bottled & Canned Soft Drinks & Carbonated Waters |
| 2090 | Miscellaneous Food Preparations & Kindred Products |
| 2092 | Prepared Fresh or Frozen Fish & Seafood |
| 2100 | Tobacco Products |
| 2111 | Cigarettes |
| 2200 | Textile Mill Products |
| 2211 | Broadwoven Fabric Mills, Cotton |
| 2221 | Broadwoven Fabric Mills, Man Made Fiber & Silk |
| 2250 | Knitting Mills |
| 2253 | Knit Outerwear Mills |
| 2273 | Carpets & Rugs |
| 2300 | Apparel & Other Finished Prods of Fabrics & Similar Matl |
| 2320 | Men's & Boys' Furnishings, Work Clothing, & Allied Garments |
| 2330 | Women's, Misses', and Juniors Outerwear |
| 2340 | Women's, Misses', Children's & Infant's Undergarments |
| 2390 | Miscellaneous Fabricated Textile Products |
| 2400 | Lumber & Wood Products (No Furniture) |
| 2421 | Sawmills & Planing Mills, General |
| 2430 | Millwood, Veneer, Plywood, & Structural Wood Members |
| 2451 | Mobile homes |
| 2452 | Prefabricated Wood Bldgs & Components |
| 2510 | Household Furniture |
| 2511 | Wood Household Furniture, (No Upholstered) |
| 2520 | Office Furniture |
| 2522 | Office Furniture (No Wood) |
| 2531 | Public Bldg & Related Furniture |
| 2540 | Partitions, Shelvg, Lockers, & office & Store Fixtures |
| 2590 | Miscellaneous Furniture & Fixtures |
| 2600 | Papers & Allied Products |
| 2611 | Pulp Mills |
| 2621 | Paper Mills |
| 2631 | Paperboard Mills |
| 2650 | Paperboard Containers & Boxes |
| 2670 | Converted Paper & Paperboard Prods (No Containers/Boxes) |
| 2673 | Plastics, Foil & Coated Paper Bags |
| 2711 | Newspapers: Publishing or Publishing & Printing |
| 2721 | Periodicals: Publishing or Publishing & Printing |
| 2731 | Books: Publishing or Publishing & Printing |
| 2732 | Book Printing |
| 2741 | Miscellaneous Publishing |
| 2750 | Commercial Printing |
| 2761 | Manifold Business Forms |
| 2771 | Greeting Cards |
| 2780 | Blankbooks, Looseleaf Binders & Bookbinding & Related Work |
| 2790 | Service Industries For The Printing Trade |
| 2800 | Chemicals & Allied Products |
| 2810 | Industrial Inorganic Chemicals |
| 2820 | Plastic Material, Synth Resin/Rubber, Cellulos (No Glass) |
| 2821 | Plastic Materials, Synth Resins & Nonvulcan Elastomers |
| 2833 | Medicinal Chemicals & Botanical Products |
| 2834 | Pharmaceutical Preparations |
| 2835 | In Vitro & In Vivo Diagnostic Substances |
| 2836 | Biological Products, (No Diagnostic Substances) |
| 2840 | Soap, Detergents, Cleaning Preparations, Perfumes, Cosmetics |
| 2842 | Specialty Cleaning, Polishing and Sanitation Preparations |
| 2844 | Perfumes, Cosmetics & Other Toilet Preparations |
| 2851 | Paints, Varnishes, Lacquers, Enamels & Allied Prods |
| 2860 | Industrial Organic Chemicals |
| 2870 | Agricultural chemicals |
| 2890 | Miscellaneous Chemical Products |
| 2891 | Adhesives & Sealants |
| 2911 | Petroleum Refining |
| 2950 | Asphalt Paving & Roofing Materials |
| 2990 | Miscellaneous Products of Petroleum & Coal |
| 3011 | Tires & Inner Tubes |
| 3021 | Rubber & Plastics Footwear |
| 3050 | Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose |
| 3060 | Fabricated Rubber Products, NEC |
| 3080 | Miscellaneous Plastics Products |
| 3081 | Unsupported Plastics Film & Sheet |
| 3086 | Plastics Foam Products |
| 3089 | Plastics Products, NEC |
| 3100 | Leather & Leather Products |
| 3140 | Footwear, (No Rubber) |
| 3211 | Flat Glass |
| 3220 | Glass & Glassware, Pressed or Blown |
| 3221 | Glass Containers |
| 3231 | Glass Products, Made of Purchased Glass |
| 3241 | Cement, Hydraulic |
| 3250 | Structural Clay Products |
| 3260 | Pottery & Related Products |
| 3270 | Concrete, Gypsum & Plaster Products |
| 3272 | Concrete Products, Except Block & Brick |
| 3281 | Cut Stone & Stone Products |
| 3290 | Abrasive, Asbestos & Misc Nonmetallic Mineral Prods |
| 3310 | Steel Works, Blast Furnaces & Rolling & Finishing Mills |
| 3312 | Steel Works, Blast Furnaces & Rolling Mills (Coke Ovens) |
| 3317 | Steel Pipe & Tubes |
| 3320 | Iron & Steel Foundries |
| 3330 | Primary Smelting & Refining of Nonferrous Metals |
| 3334 | Primary Production of Aluminum |
| 3341 | Secondary Smelting & Refining of Nonferrous Metals |
| 3350 | Rolling Drawing & Extruding of Nonferrous Metals |
| 3357 | Drawing & Insulating of Nonferrous Wire |
| 3360 | Nonferrous Foundries (Castings) |
| 3390 | Miscellaneous Primary Metal Products |
| 3411 | Metal Cans |
| 3412 | Metal Shipping Barrels, Drums, Kegs & Pails |
| 3420 | Cutlery, Handtools & General Hardware |
| 3430 | Heating Equip, Except Elec & Warm Air; & Plumbing Fixtures |
| 3433 | Heating Equipment, Except Electric & Warm Air Furnaces |
| 3440 | Fabricated Structural Metal Products |
| 3442 | Metal Doors, Sash, Frames, Moldings & Trim |
| 3443 | Fabricated Plate Work (Boiler Shops) |
| 3444 | Sheet Metal Work |
| 3448 | Prefabricated Metal Buildings & Components |
| 3451 | Screw Machine Products |
| 3452 | Bolts, Nuts, Screws, Rivets & Washers |
| 3460 | Metal Forgings & Stampings |
| 3470 | Coating, Engraving & Allied Services |
| 3480 | Ordnance & Accessories, (No Vehicles/Guided Missiles) |
| 3490 | Miscellaneous Fabricated Metal Products |
| 3510 | Engines & Turbines |
| 3523 | Farm Machinery & Equipment |
| 3524 | Lawn & Garden Tractors & Home Lawn & Gardens Equip |
| 3530 | Construction, Mining & Materials Handling Machinery & Equip |
| 3531 | Construction Machinery & Equip |
| 3532 | Mining Machinery & Equip (No Oil & Gas Field Mach & Equip) |
| 3533 | Oil & Gas Field Machinery & Equipment |
| 3537 | Industrial Trucks, Tractors, Trailers & Stackers |
| 3540 | Metalworkg Machinery & Equipment |
| 3541 | Machine Tools, Metal Cutting Types |
| 3550 | Special Industry Machinery (No Metalworking Machinery) |
| 3555 | Printing Trades Machinery & Equipment |
| 3559 | Special Industry Machinery, NEC |
| 3560 | General Industrial Machinery & Equipment |
| 3561 | Pumps & Pumping Equipment |
| 3562 | Ball & Roller Bearings |
| 3564 | Industrial & Commercial Fans & Blowers & Air Purifying Equip |
| 3567 | Industrial Process Furnaces & Ovens |
| 3569 | General Industrial Machinery & Equipment, NEC |
| 3570 | Computer & office Equipment |
| 3571 | Electronic Computers |
| 3572 | Computer Storage Devices |
| 3575 | Computer Terminals |
| 3576 | Computer Communications Equipment |
| 3577 | Computer Peripheral Equipment, NEC |
| 3578 | Calculating & Accounting Machines (No Electronic Computers) |
| 3579 | Office Machines, NEC |
| 3580 | Refrigeration & Service Industry Machinery |
| 3585 | Air-Cond & Warm Air Heatg Equip & Comm & Indl Refrig Equip |
| 3590 | Misc Industrial & Commercial Machinery & Equipment |
| 3600 | Electronic & Other Electrical Equipment (No Computer Equip) |
| 3612 | Power, Distribution & Specialty Transformers |
| 3613 | Switchgear & Switchboard Apparatus |
| 3620 | Electrical Industrial Apparatus |
| 3621 | Motors & Generators |
| 3630 | Household Appliances |
| 3634 | Electric Housewares & Fans |
| 3640 | Electric Lighting & Wiring Equipment |
| 3651 | Household Audio & Video Equipment |
| 3652 | Phonograph Records & Prerecorded Audio Tapes & Disks |
| 3661 | Telephone & Telegraph Apparatus |
| 3663 | Radio & TV Broadcasting & Communications Equipment |
| 3669 | Communications Equipment, NEC |
| 3670 | Electronic Components & Accessories |
| 3672 | Printed Circuit Boards |
| 3674 | Semiconductors & Related Devices |
| 3677 | Electronic Coils, Transformers & Other Inductors |
| 3678 | Electronic Connectors |
| 3679 | Electronic Components, NEC |
| 3690 | Miscellaneous Electrical Machinery, Equipment & Supplies |
| 3695 | Magnetic & Optical Recording Media |
| 3711 | Motor Vehicles & Passenger Car Bodies |
| 3713 | Truck & Bus Bodies |
| 3714 | Motor Vehicle Parts & Accessories |
| 3715 | Truck Trailers |
| 3716 | Motor Homes |
| 3720 | Aircraft & Parts |
| 3721 | Aircraft |
| 3724 | Aircraft Engines & Engine Parts |
| 3728 | Aircraft Parts & Auxiliary Equipment, NEC |
| 3730 | Ship & Boat Building & Repairing |
| 3743 | Railroad Equipment |
| 3751 | Motorcycles, Bicycles & Parts |
| 3760 | Guided Missiles & Space Vehicles & Parts |
| 3790 | Miscellaneous Transportation Equipment |
| 3812 | Search, Detection, Navigation, Guidance, Aeronautical Sys |
| 3821 | Laboratory Apparatus & Furniture |
| 3822 | Auto Controls For Regulating Residential & Comml Environments |
| 3823 | Industrial Instruments For Measurement, Display, and Control |
| 3824 | Totalizing Fluid Meters & Counting Devices |
| 3825 | Instruments For Meas & Testing of Electricity & Elec Signals |
| 3826 | Laboratory Analytical Instruments |
| 3827 | Optical Instruments & Lenses |
| 3829 | Measuring & Controlling Devices, NEC |
| 3841 | Surgical & Medical Instruments & Apparatus |
| 3842 | Orthopedic, Prosthetic & Surgical Appliances & Supplies |
| 3843 | Dental Equipment & Supplies |
| 3844 | X-Ray Apparatus & Tubes & Related Irradiation Apparatus |
| 3845 | Electromedical & Electrotherapeutic Apparatus |
| 3851 | Ophthalmic Goods |
| 3861 | Photographic Equipment & Supplies |
| 3873 | Watches, Clocks, Clockwork Operated Devices/Parts |
| 3910 | Jewelry, Silverware & Plated Ware |
| 3911 | Jewelry, Precious Metal |
| 3931 | Musical Instruments |
| 3942 | Dolls & Stuffed Toys |
| 3944 | Games, Toys & Children's Vehicles (No Dolls & Bicycles) |
| 3949 | Sporting & Athletic Goods, NEC |
| 3950 | Pens, Pencils & Other Artists' Materials |
| 3960 | Costume Jewelry & Novelties |
| 3990 | Miscellaneous Manufacturing Industries |
| 4011 | Railroads, Line-Haul Operating |
| 4013 | Railroad Switching & Terminal Establishments |
| 4100 | Local & Suburban Transit & Interurban Hwy Passenger Trans |
| 4210 | Trucking & Courier Services (No Air) |
| 4213 | Trucking (No Local) |
| 4220 | Public Warehousing & Storage |
| 4231 | Terminal Maintenance Facilities For Motor Freight Transport |
| 4400 | Water Transportation |
| 4412 | Deep Sea Foreign Transportation of Freight |
| 4512 | Air Transportation, Scheduled |
| 4513 | Air Courier Services |
| 4522 | Air Transportation, Nonscheduled |
| 4581 | Airports, Flying Fields & Airport Terminal Services |
| 4610 | Pipe Lines (No Natural Gas) |
| 4700 | Transportation Services |
| 4731 | Arrangement of Transportation of Freight & Cargo |
| 4812 | Radiotelephone Communications |
| 4813 | Telephone Communications (No Radiotelephone) |
| 4822 | Telegraph & Other Message Communications |
| 4832 | Radio Broadcasting Stations |
| 4833 | Television Broadcasting Stations |
| 4841 | Cable & Other Pay Television Services |
| 4899 | Communications Services, NEC |
| 4900 | Electric, Gas & Sanitary Services |
| 4911 | Electric Services |
| 4922 | Natural Gas Transmission |
| 4923 | Natural Gas Transmission & Distribution |
| 4924 | Natural Gas Distribution |
| 4931 | Electric & Other Services Combined |
| 4932 | Gas & Other Services Combined |
| 4941 | Water Supply |
| 4950 | Sanitary Services |
| 4953 | Refuse Systems |
| 4955 | Hazardous Waste Management |
| 4961 | Steam & Air-Conditioning Supply |
| 4991 | Co-generation Services & Small Power Producers |
| 5000 | Wholesale-Durable Goods |
| 5010 | Wholesale-Motor Vehicles & Motor Vehicle Parts & Supplies |
| 5013 | Wholesale-Motor Vehicle Supplies & New Parts |
| 5020 | Wholesale-Furniture & Home Furnishings |
| 5030 | Wholesale-Lumber & Other Construction Materials |
| 5031 | Wholesale-Lumber, Plywood, millwork & Wood Panels |
| 5040 | Wholesale-Professional & Commercial Equipment & Supplies |
| 5045 | Wholesale-Computers & Peripheral Equipment & Software |
| 5047 | Wholesale-Medical, Dental & Hospital Equipment & Supplies |
| 5050 | Wholesale-Metals & Minerals (No Petroleum) |
| 5051 | Wholesale-Metals Service Centers & Offices |
| 5063 | Wholesale-Electrical Apparatus & Equipment, Wiring Supplies |
| 5064 | Wholesale-Electrical Appliances, TV & Radio Sets |
| 5065 | Wholesale-Electronic Parts & Equipment, NEC |
| 5070 | Wholesale-Hardware & Plumbing & Heating Equipment & Supplies |
| 5072 | Wholesale-Hardware |
| 5080 | Wholesale-Machinery, Equipment & Supplies |
| 5082 | Wholesale-Construction & Mining (No Petro) Machinery & Equip |
| 5084 | Wholesale-Industrial Machinery & Equipment |
| 5090 | Wholesale-Misc Durable Goods |
| 5094 | Wholesale-Jewelry, Watches, Precious Stones & Metals |
| 5099 | Wholesale-Durable Goods, NEC |
| 5110 | Wholesale-Paper & Paper Products |
| 5122 | Wholesale-Drugs, Proprietaries & Druggists' Sundries |
| 5130 | Wholesale-Apparel, Piece Goods & Notions |
| 5140 | Wholesale-Groceries & Related Products |
| 5141 | Wholesale-Groceries, General line (merchandise) |
| 5150 | Wholesale-Farm Product Raw Materials |
| 5160 | Wholesale-Chemicals & Allied Products |
| 5171 | Wholesale-Petroleum Bulk Stations & Terminals |
| 5172 | Wholesale-Petroleum & Petroleum Products (No Bulk Stations) |
| 5180 | Wholesale-Beer, Wine & Distilled Alcoholic Beverages |
| 5190 | Wholesale-Miscellaneous Non-durable Goods |
| 5200 | Retail-Building Materials, Hardware, Garden Supply |
| 5211 | Retail-Lumber & Other Building Materials Dealers |
| 5271 | Retail-Mobile Home Dealers |
| 5311 | Retail-Department Stores |
| 5331 | Retail-Variety Stores |
| 5399 | Retail-Misc general merchandise stores |
| 5400 | Retail-Food Stores |
| 5411 | Retail-Grocery Stores |
| 5412 | Retail-Convenience Stores |
| 5500 | Retail-Auto Dealers & Gasoline Stations |
| 5511 | Motor Vehicle Dealers (New and Used) |
| 5531 | Retail-Auto & Home Supply Stores |
| 5551 | Boat Dealers |
| 5600 | Retail-Apparel & Accessory Stores |
| 5621 | Retail-Women's Clothing Stores |
| 5651 | Retail-Family Clothing Stores |
| 5661 | Retail-Shoe Stores |
| 5700 | Retail-Home Furniture, Furnishings & Equipment Stores |
| 5712 | Retail-Furniture Stores |
| 5731 | Retail-Radio, TV & Consumer Electronics Stores |
| 5734 | Retail-Computer & Computer Software Stores |
| 5735 | Retail-Record & Prerecorded Tape Stores |
| 5810 | Retail-Eating & Drinking Places |
| 5812 | Retail-Eating Places |
| 5900 | Retail-Miscellaneous Retail |
| 5912 | Retail-Drug Stores and Proprietary Stores |
| 5940 | Retail-Miscellaneous Shopping Goods Stores |
| 5944 | Retail-Jewelry Stores |
| 5945 | Retail-Hobby, Toy & Game Shops |
| 5960 | Retail-Nonstore Retailers |
| 5961 | Retail-Catalog & Mail-Order Houses |
| 5990 | Retail-Retail Stores, NEC |
| 6012 | Pay Day Lenders |
| 6021 | National Commercial Banks |
| 6022 | State Commercial Banks |
| 6029 | Commercial Banks, NEC |
| 6035 | Savings Institution, Federally Chartered |
| 6036 | Savings Institutions, Not Federally Chartered |
| 6099 | Functions Related To Depository Banking, NEC |
| 6111 | Federal & Federally Sponsored Credit Agencies |
| 6141 | Personal Credit Institutions |
| 6153 | Short-Term Business Credit Institutions |
| 6159 | Miscellaneous Business Credit Institution |
| 6162 | Mortgage Bankers & Loan Correspondents |
| 6163 | Loan Brokers |
| 6172 | Finance Lessors |
| 6189 | Asset-Backed Securities |
| 6199 | Finance Services |
| 6200 | Security & Commodity Brokers, Dealers, Exchanges & Services |
| 6211 | Security Brokers, Dealers & Flotation Companies |
| 6221 | Commodity Contracts Brokers & Dealers |
| 6282 | Investment Advice |
| 6311 | Life Insurance |
| 6321 | Accident & Health Insurance |
| 6324 | Hospital & Medical Service Plans |
| 6331 | Fire, Marine & Casualty Insurance |
| 6351 | Surety Insurance |
| 6361 | Title Insurance |
| 6399 | Insurance Carriers, NEC |
| 6411 | Insurance Agents, Brokers & Service |
| 6500 | Real Estate |
| 6510 | Real Estate Operators (No Developers) & Lessors |
| 6512 | Operators of Nonresidential Buildings |
| 6513 | Operators of Apartment Buildings |
| 6519 | Lessors of Real Property, NEC |
| 6531 | Real Estate Agents & Managers (For Others) |
| 6532 | Real Estate Dealers (For Their Own Account) |
| 6552 | Land Subdividers & Developers (No Cemeteries) |
| 6770 | Blank Checks |
| 6792 | Oil Royalty Traders |
| 6794 | Patent Owners & Lessors |
| 6795 | Mineral Royalty Traders |
| 6798 | Real Estate Investment Trusts |
| 6799 | Investors, NEC |
| 7000 | Hotels, Rooming Houses, Camps & Other Lodging Places |
| 7011 | Hotels & Motels |
| 7200 | Services-Personal Services |
| 7310 | Services-Advertising |
| 7311 | Services-Advertising Agencies |
| 7320 | Services-Consumer Credit Reporting, Collection Agencies |
| 7330 | Services-Mailing, Reproduction, Commercial Art & Photography |
| 7331 | Services-Direct Mail Advertising Services |
| 7334 | Services-Photocopying and Duplicating Services |
| 7340 | Services-To Dwellings & Other Buildings |
| 7350 | Services-Miscellaneous Equipment Rental & Leasing |
| 7359 | Services-Equipment Rental & Leasing, NEC |
| 7361 | Services-Employment Agencies |
| 7363 | Services-Help Supply Services |
| 7370 | Services-Computer Programming, Data Processing, Etc. |
| 7371 | Services-Computer Programming Services |
| 7372 | Services-Prepackaged Software |
| 7373 | Services-Computer Integrated Systems Design |
| 7374 | Services-Computer Processing & Data Preparation |
| 7377 | Services-Computer Rental & Leasing |
| 7380 | Services-Miscellaneous Business Services |
| 7381 | Services-Detective, Guard & Armored Car Services |
| 7384 | Services-Photofinishing Laboratories |
| 7385 | Services-Telephone Interconnect Systems |
| 7389 | Services-Business Services, NEC |
| 7500 | Services-Automotive Repair, Services & Parking |
| 7510 | Services-Auto Rental & Leasing (No Drivers) |
| 7600 | Services-Miscellaneous Repair Services |
| 7812 | Services-Motion Picture & Video Tape Production |
| 7819 | Services-Allied To Motion Picture Production |
| 7822 | Services-Motion Picture & Video Tape Distribution |
| 7829 | Services-Allied To Motion Picture Distribution |
| 7830 | Services-Motion Picture Theaters |
| 7841 | Services-Video Tape Rental |
| 7900 | Services-Amusement & Recreation Services |
| 7948 | Services-Racing, Including Track Operation |
| 7990 | Services-Miscellaneous Amusement & Recreation |
| 7994 | Services-Video Game Arcades |
| 7995 | Services-Gambling Transactions |
| 7996 | Services-Amusement Parks |
| 7997 | Services-Membership Sports & Recreation Clubs |
| 8000 | Services-Health Services |
| 8011 | Services-Offices & Clinics of Doctors of Medicine |
| 8050 | Services-Nursing & Personal Care Facilities |
| 8051 | Services-Skilled Nursing Care Facilities |
| 8060 | Services-Hospitals |
| 8062 | Services-General Medical & Surgical Hospitals, NEC |
| 8071 | Services-Medical Laboratories |
| 8082 | Services-Home Health Care Services |
| 8090 | Services-Misc Health & Allied Services, NEC |
| 8093 | Services-Specialty Outpatient Facilities, NEC |
| 8111 | Services-Legal Services |
| 8200 | Services-Educational Services |
| 8300 | Services-Social Services |
| 8351 | Services-Child Day Care Services |
| 8600 | Services-Membership organizations |
| 8661 | Religious organizations, churches, places of worship, religious instruction |
| 8700 | Services-Engineering, Accounting, Research, Management |
| 8711 | Services-Engineering Services |
| 8731 | Services-Commercial Physical & Biological Research |
| 8734 | Services-Testing Laboratories |
| 8741 | Services-Management Services |
| 8742 | Services-Management Consulting Services |
| 8744 | Services-Facilities Support Management Services |
| 8748 | Business Consulting Services, Not Elsewhere Classified |
| 8880 | American Depositary Receipts |
| 8888 | Foreign Governments |
| 8900 | Services-Services, NEC |
| 9721 | International Affairs |
| 9995 | Non-Operating Establishments |