- Agriculture, Forestry & Fishing
- Agricultural Production Crops (29)
- Agriculture production livestock and animal specialties (63)
- Agricultural Services (49)
- Forestry (1)
- Construction & Mining
- Metal Mining (6)
- Coal Mining (28)
- Oil And Gas Extraction (175)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (5)
- Building Construction General Contractors And Operative Builders (107)
- Heavy Construction Other Than Building Construction Contractors (49)
- Construction Special Trade Contractors (236)
- Manufacturing
- Food And Kindred Products (6)
- Textile Mill Products (1)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (4)
- Lumber And Wood Products, Except Furniture (6)
- Furniture And Fixtures (3)
- Printing, Publishing, And Allied Industries (15)
- Chemicals And Allied Products (11)
- Petroleum Refining And Related Industries (4)
- Rubber And Miscellaneous Plastics Products (3)
- Stone, Clay, Glass, And Concrete Products (5)
- Primary Metal Industries (1)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (11)
- Industrial And Commercial Machinery And Computer Equipment (32)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (11)
- Transportation Equipment (9)
- Manufacturing (con't)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (5)
- Miscellaneous Manufacturing Industries (13)
- Transportation & Utilities
- Railroad Transportation (2)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (6)
- Motor Freight Transportation And Warehousing (81)
- Water Transportation (2)
- Transportation By Air (8)
- Pipelines, Except Natural Gas (2)
- Transportation Services (8)
- Communications (30)
- Electric, Gas, And Sanitary Services (37)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (178)
- Wholesale Trade-non-durable Goods (70)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (55)
- General Merchandise Stores (11)
- Food Stores (47)
- Automotive Dealers And Gasoline Service Stations (73)
- Apparel And Accessory Stores (27)
- Home Furniture, Furnishings, And Equipment Stores (52)
- Eating And Drinking Places (93)
- Miscellaneous Retail (191)
- Finance, Insurance & Real Estate (con't)
- Real Estate (142)
- Holding And Other Investment Offices (57)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (32)
- Personal Services (110)
- Business Services (1114)
- Automotive Repair, Services, And Parking (91)
- Miscellaneous Repair Services (110)
- Motion Pictures (9)
- Amusement And Recreation Services (48)
- Health Services (129)
- Legal Services (42)
- Educational Services (50)
- Social Services (104)
- Museums, Art Galleries, And Botanical And Zoological Gardens (3)
- Membership Organizations (93)
- Engineering, Accounting, Research, Management, And Related Services (160)
- Miscellaneous Services (54)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (20)
- Justice, Public Order, And Safety (9)
- Public Finance, Taxation, And Monetary Policy (2)
- Administration Of Human Resource Programs (8)
- Administration Of Environmental Quality And Housing Programs (7)
- Administration Of Economic Programs (7)
- National Security And International Affairs (5)
- Nonclassifiable Establishments (522)
