- Agriculture, Forestry & Fishing
- Agricultural Production Crops (5)
- Agricultural Services (70)
- Construction & Mining
- Building Construction General Contractors And Operative Builders (123)
- Heavy Construction Other Than Building Construction Contractors (9)
- Construction Special Trade Contractors (256)
- Manufacturing
- Food And Kindred Products (16)
- Textile Mill Products (1)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (12)
- Lumber And Wood Products, Except Furniture (11)
- Furniture And Fixtures (2)
- Paper And Allied Products (6)
- Printing, Publishing, And Allied Industries (33)
- Chemicals And Allied Products (5)
- Rubber And Miscellaneous Plastics Products (1)
- Leather And Leather Products (2)
- Stone, Clay, Glass, And Concrete Products (3)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (6)
- Industrial And Commercial Machinery And Computer Equipment (11)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (10)
- Transportation Equipment (4)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (6)
- Miscellaneous Manufacturing Industries (17)
- Transportation & Utilities
- Local And Suburban Transit And Interurban Highway Passenger Transportation (40)
- Transportation & Utilities (con't)
- Motor Freight Transportation And Warehousing (18)
- United States Postal Service (1)
- Water Transportation (3)
- Transportation Services (20)
- Communications (37)
- Electric, Gas, And Sanitary Services (6)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (115)
- Wholesale Trade-non-durable Goods (85)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (34)
- General Merchandise Stores (15)
- Food Stores (106)
- Automotive Dealers And Gasoline Service Stations (53)
- Apparel And Accessory Stores (51)
- Home Furniture, Furnishings, And Equipment Stores (62)
- Eating And Drinking Places (174)
- Miscellaneous Retail (172)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (4)
- Personal Services (161)
- Business Services (506)
- Automotive Repair, Services, And Parking (81)
- Miscellaneous Repair Services (54)
- Motion Pictures (22)
- Amusement And Recreation Services (41)
- Health Services (172)
- Legal Services (47)
- Educational Services (39)
- Social Services (36)
- Museums, Art Galleries, And Botanical And Zoological Gardens (2)
- Membership Organizations (65)
- Engineering, Accounting, Research, Management, And Related Services (178)
- Miscellaneous Services (42)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (9)
- Justice, Public Order, And Safety (7)
- Public Finance, Taxation, And Monetary Policy (2)
- Administration Of Human Resource Programs (3)
- Administration Of Environmental Quality And Housing Programs (7)
- Administration Of Economic Programs (2)
- Nonclassifiable Establishments (241)