- Agriculture, Forestry & Fishing
- Agricultural Production Crops (15)
- Agriculture production livestock and animal specialties (5)
- Agricultural Services (63)
- Forestry (3)
- Fishing, hunting, and trapping (6)
- Construction & Mining
- Metal Mining (23)
- Coal Mining (3)
- Oil And Gas Extraction (13)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (15)
- Building Construction General Contractors And Operative Builders (207)
- Heavy Construction Other Than Building Construction Contractors (47)
- Construction Special Trade Contractors (330)
- Manufacturing
- Food And Kindred Products (11)
- Textile Mill Products (2)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (12)
- Lumber And Wood Products, Except Furniture (27)
- Furniture And Fixtures (2)
- Paper And Allied Products (1)
- Printing, Publishing, And Allied Industries (28)
- Chemicals And Allied Products (5)
- Petroleum Refining And Related Industries (1)
- Rubber And Miscellaneous Plastics Products (6)
- Leather And Leather Products (5)
- Stone, Clay, Glass, And Concrete Products (12)
- Primary Metal Industries (4)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (19)
- Industrial And Commercial Machinery And Computer Equipment (27)
- Manufacturing (con't)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (14)
- Transportation Equipment (9)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (5)
- Miscellaneous Manufacturing Industries (26)
- Transportation & Utilities
- Railroad Transportation (1)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (25)
- Motor Freight Transportation And Warehousing (122)
- United States Postal Service (3)
- Water Transportation (13)
- Transportation By Air (52)
- Pipelines, Except Natural Gas (3)
- Transportation Services (70)
- Communications (49)
- Electric, Gas, And Sanitary Services (34)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (195)
- Wholesale Trade-non-durable Goods (102)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (68)
- General Merchandise Stores (20)
- Food Stores (62)
- Automotive Dealers And Gasoline Service Stations (108)
- Apparel And Accessory Stores (53)
- Home Furniture, Furnishings, And Equipment Stores (86)
- Eating And Drinking Places (211)
- Miscellaneous Retail (330)
- Finance, Insurance & Real Estate (con't)
- Insurance Carriers (8)
- Insurance Agents, Brokers, And Service (50)
- Real Estate (239)
- Holding And Other Investment Offices (42)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (125)
- Personal Services (185)
- Business Services (1311)
- Automotive Repair, Services, And Parking (159)
- Miscellaneous Repair Services (122)
- Motion Pictures (24)
- Amusement And Recreation Services (137)
- Health Services (289)
- Legal Services (88)
- Educational Services (155)
- Social Services (185)
- Museums, Art Galleries, And Botanical And Zoological Gardens (14)
- Membership Organizations (214)
- Engineering, Accounting, Research, Management, And Related Services (343)
- Miscellaneous Services (82)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (53)
- Justice, Public Order, And Safety (34)
- Public Finance, Taxation, And Monetary Policy (6)
- Administration Of Human Resource Programs (17)
- Administration Of Environmental Quality And Housing Programs (53)
- Administration Of Economic Programs (23)
- National Security And International Affairs (21)
- Nonclassifiable Establishments (965)
