- Agriculture, Forestry & Fishing
- Agricultural Production Crops (66)
- Agriculture production livestock and animal specialties (25)
- Agricultural Services (213)
- Forestry (6)
- Fishing, hunting, and trapping (23)
- Construction & Mining
- Metal Mining (3)
- Coal Mining (2)
- Oil And Gas Extraction (11)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (6)
- Building Construction General Contractors And Operative Builders (687)
- Heavy Construction Other Than Building Construction Contractors (90)
- Construction Special Trade Contractors (945)
- Manufacturing
- Food And Kindred Products (145)
- Tobacco Products (3)
- Textile Mill Products (21)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (135)
- Lumber And Wood Products, Except Furniture (37)
- Furniture And Fixtures (32)
- Paper And Allied Products (12)
- Printing, Publishing, And Allied Industries (304)
- Chemicals And Allied Products (57)
- Petroleum Refining And Related Industries (7)
- Rubber And Miscellaneous Plastics Products (19)
- Leather And Leather Products (14)
- Stone, Clay, Glass, And Concrete Products (33)
- Primary Metal Industries (11)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (58)
- Manufacturing (con't)
- Industrial And Commercial Machinery And Computer Equipment (64)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (53)
- Transportation Equipment (35)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (46)
- Miscellaneous Manufacturing Industries (173)
- Transportation & Utilities
- Railroad Transportation (2)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (147)
- Motor Freight Transportation And Warehousing (179)
- United States Postal Service (12)
- Water Transportation (59)
- Transportation By Air (87)
- Transportation Services (723)
- Communications (345)
- Electric, Gas, And Sanitary Services (78)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (1179)
- Wholesale Trade-non-durable Goods (1050)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (145)
- General Merchandise Stores (74)
- Food Stores (691)
- Automotive Dealers And Gasoline Service Stations (375)
- Apparel And Accessory Stores (762)
- Home Furniture, Furnishings, And Equipment Stores (494)
- Eating And Drinking Places (1843)
- Miscellaneous Retail (2005)
- Finance, Insurance & Real Estate (con't)
- Insurance Carriers (118)
- Insurance Agents, Brokers, And Service (372)
- Real Estate (1846)
- Holding And Other Investment Offices (703)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (273)
- Personal Services (1315)
- Business Services (6297)
- Automotive Repair, Services, And Parking (591)
- Miscellaneous Repair Services (512)
- Motion Pictures (315)
- Amusement And Recreation Services (765)
- Health Services (2328)
- Legal Services (750)
- Educational Services (706)
- Social Services (560)
- Museums, Art Galleries, And Botanical And Zoological Gardens (59)
- Membership Organizations (1128)
- Engineering, Accounting, Research, Management, And Related Services (2485)
- Miscellaneous Services (354)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (195)
- Justice, Public Order, And Safety (115)
- Public Finance, Taxation, And Monetary Policy (32)
- Administration Of Human Resource Programs (251)
- Administration Of Environmental Quality And Housing Programs (81)
- Administration Of Economic Programs (161)
- National Security And International Affairs (190)
- Nonclassifiable Establishments (4574)
