- Agriculture, Forestry & Fishing
- Agricultural Production Crops (248)
- Agriculture production livestock and animal specialties (30)
- Agricultural Services (85)
- Fishing, hunting, and trapping (1)
- Construction & Mining
- Metal Mining (2)
- Oil And Gas Extraction (23)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (6)
- Building Construction General Contractors And Operative Builders (138)
- Heavy Construction Other Than Building Construction Contractors (37)
- Construction Special Trade Contractors (394)
- Manufacturing
- Food And Kindred Products (35)
- Textile Mill Products (10)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (10)
- Lumber And Wood Products, Except Furniture (33)
- Furniture And Fixtures (17)
- Paper And Allied Products (7)
- Printing, Publishing, And Allied Industries (65)
- Chemicals And Allied Products (21)
- Petroleum Refining And Related Industries (5)
- Rubber And Miscellaneous Plastics Products (10)
- Leather And Leather Products (2)
- Stone, Clay, Glass, And Concrete Products (24)
- Primary Metal Industries (5)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (35)
- Industrial And Commercial Machinery And Computer Equipment (47)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (25)
- Transportation Equipment (8)
- Manufacturing (con't)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (9)
- Miscellaneous Manufacturing Industries (40)
- Transportation & Utilities
- Railroad Transportation (2)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (19)
- Motor Freight Transportation And Warehousing (158)
- United States Postal Service (18)
- Water Transportation (1)
- Transportation By Air (8)
- Pipelines, Except Natural Gas (3)
- Transportation Services (47)
- Communications (36)
- Electric, Gas, And Sanitary Services (39)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (360)
- Wholesale Trade-non-durable Goods (151)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (83)
- General Merchandise Stores (30)
- Food Stores (156)
- Automotive Dealers And Gasoline Service Stations (173)
- Apparel And Accessory Stores (172)
- Home Furniture, Furnishings, And Equipment Stores (152)
- Eating And Drinking Places (359)
- Miscellaneous Retail (461)
- Finance, Insurance & Real Estate (con't)
- Real Estate (238)
- Holding And Other Investment Offices (174)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (43)
- Personal Services (327)
- Business Services (638)
- Automotive Repair, Services, And Parking (249)
- Miscellaneous Repair Services (163)
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- Health Services (350)
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- Educational Services (191)
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- Museums, Art Galleries, And Botanical And Zoological Gardens (16)
- Membership Organizations (406)
- Engineering, Accounting, Research, Management, And Related Services (470)
- Private Households (1)
- Miscellaneous Services (25)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (241)
- Justice, Public Order, And Safety (17)
- Public Finance, Taxation, And Monetary Policy (14)
- Administration Of Human Resource Programs (49)
- Administration Of Environmental Quality And Housing Programs (28)
- Administration Of Economic Programs (41)
- National Security And International Affairs (18)
- Nonclassifiable Establishments (2)