- Agriculture, Forestry & Fishing
- Agricultural Production Crops (255)
- Agriculture production livestock and animal specialties (53)
- Agricultural Services (191)
- Forestry (16)
- Fishing, hunting, and trapping (3)
- Construction & Mining
- Metal Mining (1)
- Coal Mining (1)
- Oil And Gas Extraction (4)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (2)
- Building Construction General Contractors And Operative Builders (256)
- Heavy Construction Other Than Building Construction Contractors (36)
- Construction Special Trade Contractors (449)
- Manufacturing
- Food And Kindred Products (31)
- Tobacco Products (1)
- Textile Mill Products (9)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (16)
- Lumber And Wood Products, Except Furniture (26)
- Furniture And Fixtures (8)
- Paper And Allied Products (4)
- Printing, Publishing, And Allied Industries (50)
- Chemicals And Allied Products (14)
- Petroleum Refining And Related Industries (3)
- Rubber And Miscellaneous Plastics Products (9)
- Leather And Leather Products (3)
- Stone, Clay, Glass, And Concrete Products (17)
- Primary Metal Industries (6)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (35)
- Manufacturing (con't)
- Industrial And Commercial Machinery And Computer Equipment (68)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (9)
- Transportation Equipment (16)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (6)
- Miscellaneous Manufacturing Industries (36)
- Transportation & Utilities
- Railroad Transportation (2)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (26)
- Motor Freight Transportation And Warehousing (196)
- United States Postal Service (3)
- Water Transportation (5)
- Transportation By Air (9)
- Transportation Services (71)
- Communications (81)
- Electric, Gas, And Sanitary Services (36)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (261)
- Wholesale Trade-non-durable Goods (164)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (78)
- General Merchandise Stores (20)
- Food Stores (167)
- Automotive Dealers And Gasoline Service Stations (186)
- Apparel And Accessory Stores (82)
- Home Furniture, Furnishings, And Equipment Stores (127)
- Eating And Drinking Places (305)
- Miscellaneous Retail (453)
- Finance, Insurance & Real Estate (con't)
- Insurance Carriers (20)
- Insurance Agents, Brokers, And Service (111)
- Real Estate (257)
- Holding And Other Investment Offices (51)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (50)
- Personal Services (373)
- Business Services (1131)
- Automotive Repair, Services, And Parking (241)
- Miscellaneous Repair Services (179)
- Motion Pictures (29)
- Amusement And Recreation Services (128)
- Health Services (414)
- Legal Services (119)
- Educational Services (130)
- Social Services (294)
- Museums, Art Galleries, And Botanical And Zoological Gardens (8)
- Membership Organizations (279)
- Engineering, Accounting, Research, Management, And Related Services (338)
- Miscellaneous Services (58)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (37)
- Justice, Public Order, And Safety (35)
- Public Finance, Taxation, And Monetary Policy (7)
- Administration Of Human Resource Programs (13)
- Administration Of Environmental Quality And Housing Programs (14)
- Administration Of Economic Programs (24)
- National Security And International Affairs (9)
- Nonclassifiable Establishments (476)
