- Agriculture, Forestry & Fishing
- Agricultural Production Crops (14)
- Agriculture production livestock and animal specialties (8)
- Agricultural Services (28)
- Forestry (1)
- Fishing, hunting, and trapping (1)
- Construction & Mining
- Coal Mining (19)
- Oil And Gas Extraction (4)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (2)
- Building Construction General Contractors And Operative Builders (65)
- Heavy Construction Other Than Building Construction Contractors (14)
- Construction Special Trade Contractors (94)
- Manufacturing
- Food And Kindred Products (10)
- Textile Mill Products (4)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (3)
- Lumber And Wood Products, Except Furniture (9)
- Paper And Allied Products (5)
- Printing, Publishing, And Allied Industries (10)
- Chemicals And Allied Products (9)
- Petroleum Refining And Related Industries (1)
- Rubber And Miscellaneous Plastics Products (3)
- Stone, Clay, Glass, And Concrete Products (5)
- Primary Metal Industries (3)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (12)
- Industrial And Commercial Machinery And Computer Equipment (17)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (9)
- Transportation Equipment (3)
- Manufacturing (con't)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (5)
- Miscellaneous Manufacturing Industries (13)
- Transportation & Utilities
- Railroad Transportation (1)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (5)
- Motor Freight Transportation And Warehousing (38)
- United States Postal Service (1)
- Water Transportation (1)
- Transportation By Air (2)
- Transportation Services (14)
- Communications (23)
- Electric, Gas, And Sanitary Services (8)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (94)
- Wholesale Trade-non-durable Goods (39)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (33)
- General Merchandise Stores (20)
- Food Stores (53)
- Automotive Dealers And Gasoline Service Stations (48)
- Apparel And Accessory Stores (39)
- Home Furniture, Furnishings, And Equipment Stores (52)
- Eating And Drinking Places (86)
- Miscellaneous Retail (144)
- Finance, Insurance & Real Estate (con't)
- Real Estate (65)
- Holding And Other Investment Offices (25)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (30)
- Personal Services (119)
- Business Services (408)
- Automotive Repair, Services, And Parking (55)
- Miscellaneous Repair Services (37)
- Motion Pictures (9)
- Amusement And Recreation Services (40)
- Health Services (80)
- Legal Services (26)
- Educational Services (31)
- Social Services (40)
- Museums, Art Galleries, And Botanical And Zoological Gardens (3)
- Membership Organizations (103)
- Engineering, Accounting, Research, Management, And Related Services (69)
- Miscellaneous Services (13)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (7)
- Justice, Public Order, And Safety (13)
- Public Finance, Taxation, And Monetary Policy (2)
- Administration Of Human Resource Programs (10)
- Administration Of Environmental Quality And Housing Programs (3)
- Administration Of Economic Programs (6)
- National Security And International Affairs (2)
- Nonclassifiable Establishments (191)
