- Agriculture, Forestry & Fishing
- Agricultural Production Crops (2500)
- Agriculture production livestock and animal specialties (1518)
- Agricultural Services (601)
- Forestry (29)
- Fishing, hunting, and trapping (17)
- Construction & Mining
- Metal Mining (25)
- Oil And Gas Extraction (61)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (20)
- Building Construction General Contractors And Operative Builders (729)
- Heavy Construction Other Than Building Construction Contractors (273)
- Construction Special Trade Contractors (2089)
- Manufacturing
- Food And Kindred Products (261)
- Textile Mill Products (50)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (145)
- Lumber And Wood Products, Except Furniture (214)
- Furniture And Fixtures (129)
- Paper And Allied Products (51)
- Printing, Publishing, And Allied Industries (396)
- Chemicals And Allied Products (124)
- Petroleum Refining And Related Industries (16)
- Rubber And Miscellaneous Plastics Products (100)
- Leather And Leather Products (26)
- Stone, Clay, Glass, And Concrete Products (124)
- Primary Metal Industries (63)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (262)
- Industrial And Commercial Machinery And Computer Equipment (346)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (99)
- Manufacturing (con't)
- Transportation Equipment (95)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (79)
- Miscellaneous Manufacturing Industries (212)
- Transportation & Utilities
- Railroad Transportation (27)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (133)
- Motor Freight Transportation And Warehousing (1020)
- United States Postal Service (317)
- Water Transportation (20)
- Transportation By Air (115)
- Pipelines, Except Natural Gas (11)
- Transportation Services (343)
- Communications (232)
- Electric, Gas, And Sanitary Services (201)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (1728)
- Wholesale Trade-non-durable Goods (1249)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (731)
- General Merchandise Stores (330)
- Food Stores (1266)
- Automotive Dealers And Gasoline Service Stations (1202)
- Apparel And Accessory Stores (617)
- Home Furniture, Furnishings, And Equipment Stores (819)
- Eating And Drinking Places (1946)
- Miscellaneous Retail (2443)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (507)
- Real Estate (1054)
- Holding And Other Investment Offices (978)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (633)
- Personal Services (1658)
- Business Services (3072)
- Automotive Repair, Services, And Parking (1452)
- Miscellaneous Repair Services (1154)
- Motion Pictures (212)
- Amusement And Recreation Services (1067)
- Health Services (1851)
- Legal Services (373)
- Educational Services (1288)
- Social Services (1428)
- Museums, Art Galleries, And Botanical And Zoological Gardens (81)
- Membership Organizations (1835)
- Engineering, Accounting, Research, Management, And Related Services (1920)
- Private Households (4)
- Miscellaneous Services (112)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (698)
- Justice, Public Order, And Safety (157)
- Public Finance, Taxation, And Monetary Policy (74)
- Administration Of Human Resource Programs (192)
- Administration Of Environmental Quality And Housing Programs (124)
- Administration Of Economic Programs (276)
- National Security And International Affairs (37)
- Nonclassifiable Establishments (10)