- Agriculture, Forestry & Fishing
- Agricultural Production Crops (251)
- Agriculture production livestock and animal specialties (65)
- Agricultural Services (345)
- Forestry (68)
- Fishing, hunting, and trapping (3)
- Construction & Mining
- Metal Mining (1)
- Oil And Gas Extraction (4)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (8)
- Building Construction General Contractors And Operative Builders (766)
- Heavy Construction Other Than Building Construction Contractors (100)
- Construction Special Trade Contractors (896)
- Manufacturing
- Food And Kindred Products (69)
- Textile Mill Products (15)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (24)
- Lumber And Wood Products, Except Furniture (68)
- Furniture And Fixtures (14)
- Paper And Allied Products (9)
- Printing, Publishing, And Allied Industries (164)
- Chemicals And Allied Products (29)
- Petroleum Refining And Related Industries (7)
- Rubber And Miscellaneous Plastics Products (17)
- Leather And Leather Products (5)
- Stone, Clay, Glass, And Concrete Products (28)
- Primary Metal Industries (12)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (75)
- Industrial And Commercial Machinery And Computer Equipment (66)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (38)
- Manufacturing (con't)
- Transportation Equipment (23)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (20)
- Miscellaneous Manufacturing Industries (100)
- Transportation & Utilities
- Railroad Transportation (4)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (36)
- Motor Freight Transportation And Warehousing (269)
- United States Postal Service (8)
- Water Transportation (4)
- Transportation By Air (15)
- Transportation Services (144)
- Communications (123)
- Electric, Gas, And Sanitary Services (42)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (482)
- Wholesale Trade-non-durable Goods (252)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (159)
- General Merchandise Stores (30)
- Food Stores (264)
- Automotive Dealers And Gasoline Service Stations (284)
- Apparel And Accessory Stores (169)
- Home Furniture, Furnishings, And Equipment Stores (287)
- Eating And Drinking Places (618)
- Miscellaneous Retail (824)
- Finance, Insurance & Real Estate (con't)
- Real Estate (851)
- Holding And Other Investment Offices (300)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (82)
- Personal Services (613)
- Business Services (3355)
- Automotive Repair, Services, And Parking (372)
- Miscellaneous Repair Services (301)
- Motion Pictures (77)
- Amusement And Recreation Services (255)
- Health Services (813)
- Legal Services (303)
- Educational Services (233)
- Social Services (514)
- Museums, Art Galleries, And Botanical And Zoological Gardens (21)
- Membership Organizations (512)
- Engineering, Accounting, Research, Management, And Related Services (838)
- Miscellaneous Services (179)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (89)
- Justice, Public Order, And Safety (90)
- Public Finance, Taxation, And Monetary Policy (18)
- Administration Of Human Resource Programs (85)
- Administration Of Environmental Quality And Housing Programs (32)
- Administration Of Economic Programs (88)
- National Security And International Affairs (13)
- Nonclassifiable Establishments (1939)
