- Agriculture, Forestry & Fishing
- Agricultural Production Crops (218)
- Agriculture production livestock and animal specialties (117)
- Agricultural Services (828)
- Forestry (5)
- Fishing, hunting, and trapping (17)
- Construction & Mining
- Metal Mining (10)
- Coal Mining (1)
- Oil And Gas Extraction (74)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (20)
- Building Construction General Contractors And Operative Builders (2942)
- Heavy Construction Other Than Building Construction Contractors (166)
- Construction Special Trade Contractors (3740)
- Manufacturing
- Food And Kindred Products (553)
- Tobacco Products (7)
- Textile Mill Products (532)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (1899)
- Lumber And Wood Products, Except Furniture (295)
- Furniture And Fixtures (390)
- Paper And Allied Products (191)
- Printing, Publishing, And Allied Industries (2131)
- Chemicals And Allied Products (372)
- Petroleum Refining And Related Industries (28)
- Rubber And Miscellaneous Plastics Products (142)
- Leather And Leather Products (152)
- Stone, Clay, Glass, And Concrete Products (200)
- Primary Metal Industries (149)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (616)
- Industrial And Commercial Machinery And Computer Equipment (584)
- Manufacturing (con't)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (466)
- Transportation Equipment (146)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (286)
- Miscellaneous Manufacturing Industries (1502)
- Transportation & Utilities
- Railroad Transportation (15)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (711)
- Motor Freight Transportation And Warehousing (1863)
- United States Postal Service (52)
- Water Transportation (72)
- Transportation By Air (297)
- Pipelines, Except Natural Gas (3)
- Transportation Services (2283)
- Communications (2575)
- Electric, Gas, And Sanitary Services (293)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (8074)
- Wholesale Trade-non-durable Goods (8797)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (936)
- General Merchandise Stores (699)
- Food Stores (4488)
- Automotive Dealers And Gasoline Service Stations (2146)
- Apparel And Accessory Stores (7541)
- Home Furniture, Furnishings, And Equipment Stores (3785)
- Eating And Drinking Places (8382)
- Miscellaneous Retail (11376)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (1668)
- Real Estate (8700)
- Holding And Other Investment Offices (4635)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (935)
- Personal Services (8139)
- Business Services (35700)
- Automotive Repair, Services, And Parking (4088)
- Miscellaneous Repair Services (4244)
- Motion Pictures (6015)
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- Health Services (10829)
- Legal Services (5969)
- Educational Services (3117)
- Social Services (4166)
- Museums, Art Galleries, And Botanical And Zoological Gardens (441)
- Membership Organizations (6427)
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- Miscellaneous Services (2041)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (270)
- Justice, Public Order, And Safety (376)
- Public Finance, Taxation, And Monetary Policy (35)
- Administration Of Human Resource Programs (522)
- Administration Of Environmental Quality And Housing Programs (221)
- Administration Of Economic Programs (180)
- National Security And International Affairs (142)
- Nonclassifiable Establishments (35561)