- Agriculture, Forestry & Fishing
- Agricultural Production Crops (21)
- Agriculture production livestock and animal specialties (7)
- Agricultural Services (227)
- Forestry (4)
- Fishing, hunting, and trapping (2)
- Construction & Mining
- Coal Mining (2)
- Oil And Gas Extraction (10)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (5)
- Building Construction General Contractors And Operative Builders (601)
- Heavy Construction Other Than Building Construction Contractors (55)
- Construction Special Trade Contractors (944)
- Manufacturing
- Food And Kindred Products (91)
- Textile Mill Products (19)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (50)
- Lumber And Wood Products, Except Furniture (51)
- Furniture And Fixtures (27)
- Paper And Allied Products (26)
- Printing, Publishing, And Allied Industries (229)
- Chemicals And Allied Products (64)
- Petroleum Refining And Related Industries (8)
- Rubber And Miscellaneous Plastics Products (64)
- Leather And Leather Products (9)
- Stone, Clay, Glass, And Concrete Products (33)
- Primary Metal Industries (26)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (136)
- Industrial And Commercial Machinery And Computer Equipment (163)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (54)
- Manufacturing (con't)
- Transportation Equipment (31)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (64)
- Miscellaneous Manufacturing Industries (118)
- Transportation & Utilities
- Railroad Transportation (12)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (93)
- Motor Freight Transportation And Warehousing (270)
- United States Postal Service (15)
- Water Transportation (24)
- Transportation By Air (29)
- Pipelines, Except Natural Gas (1)
- Transportation Services (212)
- Communications (212)
- Electric, Gas, And Sanitary Services (121)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (967)
- Wholesale Trade-non-durable Goods (433)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (166)
- General Merchandise Stores (96)
- Food Stores (562)
- Automotive Dealers And Gasoline Service Stations (423)
- Apparel And Accessory Stores (388)
- Home Furniture, Furnishings, And Equipment Stores (375)
- Eating And Drinking Places (1384)
- Miscellaneous Retail (1272)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (289)
- Real Estate (988)
- Holding And Other Investment Offices (184)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (94)
- Personal Services (1164)
- Business Services (3885)
- Automotive Repair, Services, And Parking (623)
- Miscellaneous Repair Services (438)
- Motion Pictures (123)
- Amusement And Recreation Services (446)
- Health Services (1614)
- Legal Services (984)
- Educational Services (512)
- Social Services (841)
- Museums, Art Galleries, And Botanical And Zoological Gardens (33)
- Membership Organizations (1222)
- Engineering, Accounting, Research, Management, And Related Services (1228)
- Miscellaneous Services (256)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (100)
- Justice, Public Order, And Safety (141)
- Public Finance, Taxation, And Monetary Policy (29)
- Administration Of Human Resource Programs (200)
- Administration Of Environmental Quality And Housing Programs (67)
- Administration Of Economic Programs (76)
- National Security And International Affairs (28)
- Nonclassifiable Establishments (2272)
