- Agriculture, Forestry & Fishing
- Agricultural Production Crops (8)
- Agriculture production livestock and animal specialties (6)
- Agricultural Services (47)
- Forestry (7)
- Construction & Mining
- Metal Mining (1)
- Oil And Gas Extraction (3)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (5)
- Building Construction General Contractors And Operative Builders (83)
- Heavy Construction Other Than Building Construction Contractors (26)
- Construction Special Trade Contractors (280)
- Manufacturing
- Food And Kindred Products (22)
- Textile Mill Products (6)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (13)
- Lumber And Wood Products, Except Furniture (30)
- Furniture And Fixtures (20)
- Paper And Allied Products (7)
- Printing, Publishing, And Allied Industries (50)
- Chemicals And Allied Products (15)
- Petroleum Refining And Related Industries (1)
- Rubber And Miscellaneous Plastics Products (21)
- Stone, Clay, Glass, And Concrete Products (15)
- Primary Metal Industries (9)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (44)
- Industrial And Commercial Machinery And Computer Equipment (56)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (12)
- Transportation Equipment (7)
- Manufacturing (con't)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (23)
- Miscellaneous Manufacturing Industries (41)
- Transportation & Utilities
- Local And Suburban Transit And Interurban Highway Passenger Transportation (10)
- Motor Freight Transportation And Warehousing (71)
- United States Postal Service (3)
- Water Transportation (3)
- Transportation By Air (2)
- Transportation Services (23)
- Communications (45)
- Electric, Gas, And Sanitary Services (17)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (218)
- Wholesale Trade-non-durable Goods (124)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (72)
- General Merchandise Stores (24)
- Food Stores (143)
- Automotive Dealers And Gasoline Service Stations (110)
- Apparel And Accessory Stores (135)
- Home Furniture, Furnishings, And Equipment Stores (128)
- Eating And Drinking Places (253)
- Miscellaneous Retail (301)
- Finance, Insurance & Real Estate (con't)
- Holding And Other Investment Offices (145)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (21)
- Personal Services (356)
- Business Services (384)
- Automotive Repair, Services, And Parking (174)
- Miscellaneous Repair Services (149)
- Motion Pictures (37)
- Amusement And Recreation Services (118)
- Health Services (306)
- Legal Services (70)
- Educational Services (97)
- Social Services (193)
- Museums, Art Galleries, And Botanical And Zoological Gardens (7)
- Membership Organizations (206)
- Engineering, Accounting, Research, Management, And Related Services (247)
- Miscellaneous Services (17)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (36)
- Justice, Public Order, And Safety (7)
- Public Finance, Taxation, And Monetary Policy (5)
- Administration Of Human Resource Programs (8)
- Administration Of Environmental Quality And Housing Programs (10)
- Administration Of Economic Programs (9)
- National Security And International Affairs (6)
- Nonclassifiable Establishments (1)