- Agriculture, Forestry & Fishing
- Agricultural Production Crops (10)
- Agriculture production livestock and animal specialties (5)
- Agricultural Services (46)
- Forestry (1)
- Fishing, hunting, and trapping (1)
- Construction & Mining
- Building Construction General Contractors And Operative Builders (123)
- Heavy Construction Other Than Building Construction Contractors (13)
- Construction Special Trade Contractors (129)
- Manufacturing
- Food And Kindred Products (2)
- Textile Mill Products (1)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (4)
- Lumber And Wood Products, Except Furniture (10)
- Paper And Allied Products (1)
- Printing, Publishing, And Allied Industries (15)
- Chemicals And Allied Products (1)
- Petroleum Refining And Related Industries (2)
- Rubber And Miscellaneous Plastics Products (3)
- Stone, Clay, Glass, And Concrete Products (3)
- Primary Metal Industries (2)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (2)
- Industrial And Commercial Machinery And Computer Equipment (10)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (5)
- Transportation Equipment (2)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (5)
- Manufacturing (con't)
- Miscellaneous Manufacturing Industries (8)
- Transportation & Utilities
- Local And Suburban Transit And Interurban Highway Passenger Transportation (4)
- Motor Freight Transportation And Warehousing (70)
- United States Postal Service (1)
- Transportation By Air (8)
- Transportation Services (38)
- Communications (16)
- Electric, Gas, And Sanitary Services (7)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (45)
- Wholesale Trade-non-durable Goods (14)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (13)
- General Merchandise Stores (10)
- Food Stores (23)
- Automotive Dealers And Gasoline Service Stations (24)
- Apparel And Accessory Stores (22)
- Home Furniture, Furnishings, And Equipment Stores (17)
- Eating And Drinking Places (54)
- Miscellaneous Retail (54)
- Finance, Insurance & Real Estate (con't)
- Holding And Other Investment Offices (47)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (5)
- Personal Services (82)
- Business Services (717)
- Automotive Repair, Services, And Parking (43)
- Miscellaneous Repair Services (40)
- Motion Pictures (7)
- Amusement And Recreation Services (39)
- Health Services (33)
- Legal Services (3)
- Educational Services (25)
- Social Services (45)
- Museums, Art Galleries, And Botanical And Zoological Gardens (1)
- Membership Organizations (71)
- Engineering, Accounting, Research, Management, And Related Services (73)
- Miscellaneous Services (27)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (3)
- Justice, Public Order, And Safety (3)
- Administration Of Environmental Quality And Housing Programs (1)
- Administration Of Economic Programs (5)
- National Security And International Affairs (1)
- Nonclassifiable Establishments (211)
