- Agriculture, Forestry & Fishing
- Agricultural Production Crops (45)
- Agriculture production livestock and animal specialties (2)
- Agricultural Services (150)
- Forestry (3)
- Construction & Mining
- Metal Mining (5)
- Oil And Gas Extraction (6)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (5)
- Building Construction General Contractors And Operative Builders (363)
- Heavy Construction Other Than Building Construction Contractors (81)
- Construction Special Trade Contractors (817)
- Manufacturing
- Food And Kindred Products (68)
- Textile Mill Products (14)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (46)
- Lumber And Wood Products, Except Furniture (59)
- Furniture And Fixtures (66)
- Paper And Allied Products (24)
- Printing, Publishing, And Allied Industries (146)
- Chemicals And Allied Products (69)
- Petroleum Refining And Related Industries (6)
- Rubber And Miscellaneous Plastics Products (42)
- Leather And Leather Products (4)
- Stone, Clay, Glass, And Concrete Products (32)
- Primary Metal Industries (19)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (103)
- Industrial And Commercial Machinery And Computer Equipment (109)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (68)
- Transportation Equipment (25)
- Manufacturing (con't)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (41)
- Miscellaneous Manufacturing Industries (95)
- Transportation & Utilities
- Local And Suburban Transit And Interurban Highway Passenger Transportation (34)
- Motor Freight Transportation And Warehousing (229)
- United States Postal Service (11)
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- Transportation By Air (4)
- Pipelines, Except Natural Gas (1)
- Transportation Services (85)
- Communications (70)
- Electric, Gas, And Sanitary Services (45)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (787)
- Wholesale Trade-non-durable Goods (456)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (129)
- General Merchandise Stores (47)
- Food Stores (289)
- Automotive Dealers And Gasoline Service Stations (276)
- Apparel And Accessory Stores (336)
- Home Furniture, Furnishings, And Equipment Stores (268)
- Eating And Drinking Places (538)
- Miscellaneous Retail (683)
- Finance, Insurance & Real Estate (con't)
- Holding And Other Investment Offices (408)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (30)
- Personal Services (563)
- Business Services (1003)
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- Miscellaneous Repair Services (293)
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- Museums, Art Galleries, And Botanical And Zoological Gardens (7)
- Membership Organizations (209)
- Engineering, Accounting, Research, Management, And Related Services (722)
- Private Households (3)
- Miscellaneous Services (28)
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- Executive, Legislative, And General Government, Except Finance (24)
- Justice, Public Order, And Safety (16)
- Public Finance, Taxation, And Monetary Policy (4)
- Administration Of Human Resource Programs (9)
- Administration Of Environmental Quality And Housing Programs (12)
- Administration Of Economic Programs (12)
- National Security And International Affairs (7)
- Nonclassifiable Establishments (2)