- Agriculture, Forestry & Fishing
- Agricultural Production Crops (23)
- Agriculture production livestock and animal specialties (5)
- Agricultural Services (212)
- Forestry (7)
- Fishing, hunting, and trapping (2)
- Construction & Mining
- Oil And Gas Extraction (4)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (4)
- Building Construction General Contractors And Operative Builders (555)
- Heavy Construction Other Than Building Construction Contractors (66)
- Construction Special Trade Contractors (841)
- Manufacturing
- Food And Kindred Products (32)
- Tobacco Products (1)
- Textile Mill Products (45)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (36)
- Lumber And Wood Products, Except Furniture (43)
- Furniture And Fixtures (22)
- Paper And Allied Products (22)
- Printing, Publishing, And Allied Industries (145)
- Chemicals And Allied Products (58)
- Petroleum Refining And Related Industries (3)
- Rubber And Miscellaneous Plastics Products (50)
- Leather And Leather Products (5)
- Stone, Clay, Glass, And Concrete Products (27)
- Primary Metal Industries (12)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (74)
- Industrial And Commercial Machinery And Computer Equipment (159)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (53)
- Manufacturing (con't)
- Transportation Equipment (39)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (27)
- Miscellaneous Manufacturing Industries (88)
- Transportation & Utilities
- Railroad Transportation (2)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (44)
- Motor Freight Transportation And Warehousing (227)
- United States Postal Service (13)
- Water Transportation (6)
- Transportation By Air (42)
- Transportation Services (112)
- Communications (193)
- Electric, Gas, And Sanitary Services (41)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (816)
- Wholesale Trade-non-durable Goods (281)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (171)
- General Merchandise Stores (76)
- Food Stores (305)
- Automotive Dealers And Gasoline Service Stations (391)
- Apparel And Accessory Stores (293)
- Home Furniture, Furnishings, And Equipment Stores (368)
- Eating And Drinking Places (863)
- Miscellaneous Retail (919)
- Finance, Insurance & Real Estate (con't)
- Real Estate (964)
- Holding And Other Investment Offices (270)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (132)
- Personal Services (811)
- Business Services (3272)
- Automotive Repair, Services, And Parking (426)
- Miscellaneous Repair Services (259)
- Motion Pictures (61)
- Amusement And Recreation Services (320)
- Health Services (1090)
- Legal Services (526)
- Educational Services (257)
- Social Services (351)
- Museums, Art Galleries, And Botanical And Zoological Gardens (20)
- Membership Organizations (652)
- Engineering, Accounting, Research, Management, And Related Services (1068)
- Miscellaneous Services (152)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (92)
- Justice, Public Order, And Safety (67)
- Public Finance, Taxation, And Monetary Policy (6)
- Administration Of Human Resource Programs (28)
- Administration Of Environmental Quality And Housing Programs (10)
- Administration Of Economic Programs (17)
- National Security And International Affairs (19)
- Nonclassifiable Establishments (1610)