- Agriculture, Forestry & Fishing
- Agricultural Production Crops (72)
- Agriculture production livestock and animal specialties (19)
- Agricultural Services (59)
- Forestry (1)
- Construction & Mining
- Coal Mining (3)
- Oil And Gas Extraction (16)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (2)
- Building Construction General Contractors And Operative Builders (71)
- Heavy Construction Other Than Building Construction Contractors (13)
- Construction Special Trade Contractors (132)
- Manufacturing
- Food And Kindred Products (5)
- Textile Mill Products (3)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (6)
- Lumber And Wood Products, Except Furniture (5)
- Paper And Allied Products (3)
- Printing, Publishing, And Allied Industries (11)
- Chemicals And Allied Products (6)
- Rubber And Miscellaneous Plastics Products (17)
- Stone, Clay, Glass, And Concrete Products (14)
- Primary Metal Industries (10)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (21)
- Industrial And Commercial Machinery And Computer Equipment (26)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (1)
- Transportation Equipment (12)
- Miscellaneous Manufacturing Industries (7)
- Transportation & Utilities
- Railroad Transportation (1)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (6)
- Motor Freight Transportation And Warehousing (34)
- United States Postal Service (1)
- Water Transportation (5)
- Transportation By Air (2)
- Transportation Services (15)
- Communications (16)
- Electric, Gas, And Sanitary Services (16)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (95)
- Wholesale Trade-non-durable Goods (50)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (41)
- General Merchandise Stores (15)
- Food Stores (59)
- Automotive Dealers And Gasoline Service Stations (61)
- Apparel And Accessory Stores (21)
- Home Furniture, Furnishings, And Equipment Stores (50)
- Eating And Drinking Places (90)
- Miscellaneous Retail (156)
- Finance, Insurance & Real Estate (con't)
- Holding And Other Investment Offices (20)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (19)
- Personal Services (118)
- Business Services (931)
- Automotive Repair, Services, And Parking (96)
- Miscellaneous Repair Services (68)
- Motion Pictures (6)
- Amusement And Recreation Services (44)
- Health Services (162)
- Legal Services (36)
- Educational Services (40)
- Social Services (64)
- Museums, Art Galleries, And Botanical And Zoological Gardens (1)
- Membership Organizations (125)
- Engineering, Accounting, Research, Management, And Related Services (81)
- Miscellaneous Services (19)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (13)
- Justice, Public Order, And Safety (16)
- Public Finance, Taxation, And Monetary Policy (1)
- Administration Of Human Resource Programs (12)
- Administration Of Environmental Quality And Housing Programs (9)
- Administration Of Economic Programs (7)
- National Security And International Affairs (2)
- Nonclassifiable Establishments (294)
