- Agriculture, Forestry & Fishing
- Agricultural Production Crops (3)
- Agriculture production livestock and animal specialties (3)
- Agricultural Services (31)
- Construction & Mining
- Metal Mining (1)
- Oil And Gas Extraction (1)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (4)
- Building Construction General Contractors And Operative Builders (583)
- Heavy Construction Other Than Building Construction Contractors (45)
- Construction Special Trade Contractors (588)
- Manufacturing
- Food And Kindred Products (47)
- Textile Mill Products (15)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (45)
- Lumber And Wood Products, Except Furniture (29)
- Furniture And Fixtures (24)
- Paper And Allied Products (27)
- Printing, Publishing, And Allied Industries (122)
- Chemicals And Allied Products (76)
- Petroleum Refining And Related Industries (4)
- Rubber And Miscellaneous Plastics Products (29)
- Leather And Leather Products (4)
- Stone, Clay, Glass, And Concrete Products (24)
- Primary Metal Industries (22)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (89)
- Industrial And Commercial Machinery And Computer Equipment (57)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (25)
- Transportation Equipment (11)
- Manufacturing (con't)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (17)
- Miscellaneous Manufacturing Industries (60)
- Transportation & Utilities
- Railroad Transportation (6)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (117)
- Motor Freight Transportation And Warehousing (410)
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- Transportation By Air (64)
- Pipelines, Except Natural Gas (2)
- Transportation Services (350)
- Communications (156)
- Electric, Gas, And Sanitary Services (64)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (477)
- Wholesale Trade-non-durable Goods (383)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (71)
- General Merchandise Stores (95)
- Food Stores (618)
- Automotive Dealers And Gasoline Service Stations (280)
- Apparel And Accessory Stores (304)
- Home Furniture, Furnishings, And Equipment Stores (218)
- Eating And Drinking Places (933)
- Miscellaneous Retail (701)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (93)
- Real Estate (632)
- Holding And Other Investment Offices (190)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (69)
- Personal Services (743)
- Business Services (1536)
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- Miscellaneous Repair Services (425)
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- Engineering, Accounting, Research, Management, And Related Services (601)
- Miscellaneous Services (134)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (67)
- Justice, Public Order, And Safety (90)
- Public Finance, Taxation, And Monetary Policy (18)
- Administration Of Human Resource Programs (72)
- Administration Of Environmental Quality And Housing Programs (45)
- Administration Of Economic Programs (42)
- National Security And International Affairs (18)
- Nonclassifiable Establishments (1802)