- Agriculture, Forestry & Fishing
- Agricultural Production Crops (53)
- Agriculture production livestock and animal specialties (18)
- Agricultural Services (211)
- Forestry (3)
- Fishing, hunting, and trapping (7)
- Construction & Mining
- Metal Mining (8)
- Oil And Gas Extraction (15)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (2)
- Building Construction General Contractors And Operative Builders (386)
- Heavy Construction Other Than Building Construction Contractors (95)
- Construction Special Trade Contractors (1055)
- Manufacturing
- Food And Kindred Products (134)
- Textile Mill Products (34)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (111)
- Lumber And Wood Products, Except Furniture (88)
- Furniture And Fixtures (86)
- Paper And Allied Products (41)
- Printing, Publishing, And Allied Industries (276)
- Chemicals And Allied Products (88)
- Petroleum Refining And Related Industries (8)
- Rubber And Miscellaneous Plastics Products (76)
- Leather And Leather Products (14)
- Stone, Clay, Glass, And Concrete Products (59)
- Primary Metal Industries (42)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (163)
- Industrial And Commercial Machinery And Computer Equipment (176)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (78)
- Manufacturing (con't)
- Transportation Equipment (49)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (65)
- Miscellaneous Manufacturing Industries (135)
- Transportation & Utilities
- Railroad Transportation (19)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (47)
- Motor Freight Transportation And Warehousing (428)
- United States Postal Service (46)
- Water Transportation (8)
- Transportation By Air (39)
- Pipelines, Except Natural Gas (2)
- Transportation Services (231)
- Communications (162)
- Electric, Gas, And Sanitary Services (68)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (1192)
- Wholesale Trade-non-durable Goods (652)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (211)
- General Merchandise Stores (107)
- Food Stores (629)
- Automotive Dealers And Gasoline Service Stations (442)
- Apparel And Accessory Stores (459)
- Home Furniture, Furnishings, And Equipment Stores (482)
- Eating And Drinking Places (1205)
- Miscellaneous Retail (1389)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (292)
- Real Estate (636)
- Holding And Other Investment Offices (732)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (186)
- Personal Services (1106)
- Business Services (2090)
- Automotive Repair, Services, And Parking (709)
- Miscellaneous Repair Services (479)
- Motion Pictures (139)
- Amusement And Recreation Services (596)
- Health Services (1288)
- Legal Services (267)
- Educational Services (571)
- Social Services (813)
- Museums, Art Galleries, And Botanical And Zoological Gardens (44)
- Membership Organizations (1046)
- Engineering, Accounting, Research, Management, And Related Services (1484)
- Miscellaneous Services (89)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (271)
- Justice, Public Order, And Safety (41)
- Public Finance, Taxation, And Monetary Policy (38)
- Administration Of Human Resource Programs (101)
- Administration Of Environmental Quality And Housing Programs (48)
- Administration Of Economic Programs (100)
- National Security And International Affairs (30)
- Nonclassifiable Establishments (2)