- Agriculture, Forestry & Fishing
- Agricultural Production Crops (8)
- Agriculture production livestock and animal specialties (31)
- Agricultural Services (27)
- Forestry (7)
- Construction & Mining
- Metal Mining (19)
- Coal Mining (4)
- Oil And Gas Extraction (3)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (9)
- Building Construction General Contractors And Operative Builders (42)
- Heavy Construction Other Than Building Construction Contractors (13)
- Construction Special Trade Contractors (84)
- Manufacturing
- Food And Kindred Products (3)
- Textile Mill Products (2)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (1)
- Lumber And Wood Products, Except Furniture (2)
- Furniture And Fixtures (2)
- Paper And Allied Products (1)
- Printing, Publishing, And Allied Industries (10)
- Chemicals And Allied Products (3)
- Petroleum Refining And Related Industries (1)
- Rubber And Miscellaneous Plastics Products (1)
- Leather And Leather Products (1)
- Stone, Clay, Glass, And Concrete Products (3)
- Primary Metal Industries (2)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (6)
- Industrial And Commercial Machinery And Computer Equipment (13)
- Manufacturing (con't)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (4)
- Transportation Equipment (3)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (2)
- Miscellaneous Manufacturing Industries (11)
- Transportation & Utilities
- Railroad Transportation (1)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (2)
- Motor Freight Transportation And Warehousing (41)
- United States Postal Service (3)
- Transportation By Air (5)
- Transportation Services (24)
- Communications (19)
- Electric, Gas, And Sanitary Services (8)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (101)
- Wholesale Trade-non-durable Goods (41)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (25)
- General Merchandise Stores (7)
- Food Stores (31)
- Automotive Dealers And Gasoline Service Stations (49)
- Apparel And Accessory Stores (21)
- Home Furniture, Furnishings, And Equipment Stores (31)
- Eating And Drinking Places (79)
- Miscellaneous Retail (106)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (27)
- Real Estate (83)
- Holding And Other Investment Offices (15)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (52)
- Personal Services (92)
- Business Services (364)
- Automotive Repair, Services, And Parking (61)
- Miscellaneous Repair Services (44)
- Motion Pictures (4)
- Amusement And Recreation Services (42)
- Health Services (131)
- Legal Services (32)
- Educational Services (16)
- Social Services (41)
- Museums, Art Galleries, And Botanical And Zoological Gardens (3)
- Membership Organizations (53)
- Engineering, Accounting, Research, Management, And Related Services (87)
- Miscellaneous Services (27)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (13)
- Justice, Public Order, And Safety (19)
- Public Finance, Taxation, And Monetary Policy (3)
- Administration Of Human Resource Programs (15)
- Administration Of Environmental Quality And Housing Programs (11)
- Administration Of Economic Programs (16)
- National Security And International Affairs (6)
- Nonclassifiable Establishments (282)
