- Agriculture, Forestry & Fishing
- Agricultural Production Crops (6245)
- Agriculture production livestock and animal specialties (2132)
- Agricultural Services (1109)
- Forestry (18)
- Fishing, hunting, and trapping (32)
- Construction & Mining
- Metal Mining (1)
- Coal Mining (19)
- Oil And Gas Extraction (267)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (36)
- Building Construction General Contractors And Operative Builders (1731)
- Heavy Construction Other Than Building Construction Contractors (300)
- Construction Special Trade Contractors (2900)
- Manufacturing
- Food And Kindred Products (201)
- Textile Mill Products (19)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (102)
- Lumber And Wood Products, Except Furniture (157)
- Furniture And Fixtures (41)
- Paper And Allied Products (14)
- Printing, Publishing, And Allied Industries (330)
- Chemicals And Allied Products (108)
- Petroleum Refining And Related Industries (20)
- Rubber And Miscellaneous Plastics Products (43)
- Leather And Leather Products (16)
- Stone, Clay, Glass, And Concrete Products (117)
- Primary Metal Industries (27)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (146)
- Industrial And Commercial Machinery And Computer Equipment (352)
- Manufacturing (con't)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (83)
- Transportation Equipment (84)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (61)
- Miscellaneous Manufacturing Industries (261)
- Transportation & Utilities
- Railroad Transportation (34)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (182)
- Motor Freight Transportation And Warehousing (1368)
- United States Postal Service (331)
- Water Transportation (18)
- Transportation By Air (124)
- Pipelines, Except Natural Gas (35)
- Transportation Services (345)
- Communications (513)
- Electric, Gas, And Sanitary Services (341)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (1930)
- Wholesale Trade-non-durable Goods (1978)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (749)
- General Merchandise Stores (206)
- Food Stores (889)
- Automotive Dealers And Gasoline Service Stations (1327)
- Apparel And Accessory Stores (427)
- Home Furniture, Furnishings, And Equipment Stores (768)
- Eating And Drinking Places (2047)
- Miscellaneous Retail (2713)
- Finance, Insurance & Real Estate (con't)
- Insurance Carriers (154)
- Insurance Agents, Brokers, And Service (1074)
- Real Estate (2256)
- Holding And Other Investment Offices (518)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (658)
- Personal Services (2061)
- Business Services (21148)
- Automotive Repair, Services, And Parking (1383)
- Miscellaneous Repair Services (1256)
- Motion Pictures (180)
- Amusement And Recreation Services (931)
- Health Services (2291)
- Legal Services (486)
- Educational Services (1187)
- Social Services (1432)
- Museums, Art Galleries, And Botanical And Zoological Gardens (99)
- Membership Organizations (2150)
- Engineering, Accounting, Research, Management, And Related Services (1805)
- Miscellaneous Services (484)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (472)
- Justice, Public Order, And Safety (641)
- Public Finance, Taxation, And Monetary Policy (74)
- Administration Of Human Resource Programs (222)
- Administration Of Environmental Quality And Housing Programs (333)
- Administration Of Economic Programs (281)
- National Security And International Affairs (145)
- Nonclassifiable Establishments (8156)