- Agriculture, Forestry & Fishing
- Agricultural Production Crops (765)
- Agriculture production livestock and animal specialties (1618)
- Agricultural Services (879)
- Forestry (67)
- Fishing, hunting, and trapping (30)
- Construction & Mining
- Metal Mining (34)
- Coal Mining (61)
- Oil And Gas Extraction (1046)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (72)
- Building Construction General Contractors And Operative Builders (1752)
- Heavy Construction Other Than Building Construction Contractors (379)
- Construction Special Trade Contractors (3063)
- Manufacturing
- Food And Kindred Products (143)
- Tobacco Products (2)
- Textile Mill Products (29)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (107)
- Lumber And Wood Products, Except Furniture (230)
- Furniture And Fixtures (44)
- Paper And Allied Products (5)
- Printing, Publishing, And Allied Industries (307)
- Chemicals And Allied Products (115)
- Petroleum Refining And Related Industries (57)
- Rubber And Miscellaneous Plastics Products (29)
- Leather And Leather Products (45)
- Stone, Clay, Glass, And Concrete Products (118)
- Primary Metal Industries (37)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (187)
- Industrial And Commercial Machinery And Computer Equipment (325)
- Manufacturing (con't)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (99)
- Transportation Equipment (70)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (56)
- Miscellaneous Manufacturing Industries (267)
- Transportation & Utilities
- Railroad Transportation (27)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (109)
- Motor Freight Transportation And Warehousing (1200)
- United States Postal Service (151)
- Water Transportation (28)
- Transportation By Air (111)
- Pipelines, Except Natural Gas (49)
- Transportation Services (308)
- Communications (466)
- Electric, Gas, And Sanitary Services (360)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (1792)
- Wholesale Trade-non-durable Goods (1180)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (622)
- General Merchandise Stores (179)
- Food Stores (741)
- Automotive Dealers And Gasoline Service Stations (1073)
- Apparel And Accessory Stores (433)
- Home Furniture, Furnishings, And Equipment Stores (723)
- Eating And Drinking Places (1767)
- Miscellaneous Retail (2834)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (592)
- Real Estate (2174)
- Holding And Other Investment Offices (905)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (1038)
- Personal Services (1548)
- Business Services (12428)
- Automotive Repair, Services, And Parking (1252)
- Miscellaneous Repair Services (1208)
- Motion Pictures (205)
- Amusement And Recreation Services (951)
- Health Services (2149)
- Legal Services (818)
- Educational Services (1041)
- Social Services (1456)
- Museums, Art Galleries, And Botanical And Zoological Gardens (154)
- Membership Organizations (1935)
- Engineering, Accounting, Research, Management, And Related Services (2567)
- Miscellaneous Services (727)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (444)
- Justice, Public Order, And Safety (430)
- Public Finance, Taxation, And Monetary Policy (43)
- Administration Of Human Resource Programs (192)
- Administration Of Environmental Quality And Housing Programs (272)
- Administration Of Economic Programs (213)
- National Security And International Affairs (79)
- Nonclassifiable Establishments (9064)