- Agriculture, Forestry & Fishing
- Agricultural Production Crops (16)
- Agriculture production livestock and animal specialties (34)
- Agricultural Services (81)
- Fishing, hunting, and trapping (1)
- Construction & Mining
- Metal Mining (1)
- Oil And Gas Extraction (308)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (2)
- Building Construction General Contractors And Operative Builders (190)
- Heavy Construction Other Than Building Construction Contractors (38)
- Construction Special Trade Contractors (392)
- Manufacturing
- Food And Kindred Products (19)
- Textile Mill Products (8)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (14)
- Lumber And Wood Products, Except Furniture (22)
- Furniture And Fixtures (9)
- Paper And Allied Products (5)
- Printing, Publishing, And Allied Industries (44)
- Chemicals And Allied Products (26)
- Petroleum Refining And Related Industries (5)
- Rubber And Miscellaneous Plastics Products (24)
- Leather And Leather Products (5)
- Stone, Clay, Glass, And Concrete Products (14)
- Primary Metal Industries (14)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (76)
- Industrial And Commercial Machinery And Computer Equipment (216)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (22)
- Transportation Equipment (16)
- Manufacturing (con't)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (27)
- Miscellaneous Manufacturing Industries (60)
- Transportation & Utilities
- Railroad Transportation (1)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (22)
- Motor Freight Transportation And Warehousing (398)
- United States Postal Service (4)
- Water Transportation (2)
- Transportation By Air (6)
- Pipelines, Except Natural Gas (5)
- Transportation Services (37)
- Communications (69)
- Electric, Gas, And Sanitary Services (31)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (669)
- Wholesale Trade-non-durable Goods (174)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (86)
- General Merchandise Stores (39)
- Food Stores (168)
- Automotive Dealers And Gasoline Service Stations (258)
- Apparel And Accessory Stores (143)
- Home Furniture, Furnishings, And Equipment Stores (141)
- Eating And Drinking Places (364)
- Miscellaneous Retail (536)
- Finance, Insurance & Real Estate (con't)
- Real Estate (275)
- Holding And Other Investment Offices (69)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (51)
- Personal Services (336)
- Business Services (1823)
- Automotive Repair, Services, And Parking (290)
- Miscellaneous Repair Services (353)
- Motion Pictures (35)
- Amusement And Recreation Services (137)
- Health Services (445)
- Legal Services (109)
- Educational Services (96)
- Social Services (150)
- Museums, Art Galleries, And Botanical And Zoological Gardens (8)
- Membership Organizations (275)
- Engineering, Accounting, Research, Management, And Related Services (299)
- Miscellaneous Services (118)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (11)
- Justice, Public Order, And Safety (20)
- Public Finance, Taxation, And Monetary Policy (3)
- Administration Of Human Resource Programs (13)
- Administration Of Environmental Quality And Housing Programs (5)
- Administration Of Economic Programs (9)
- National Security And International Affairs (6)
- Nonclassifiable Establishments (984)
