- Agriculture, Forestry & Fishing
- Agricultural Production Crops (19)
- Agriculture production livestock and animal specialties (15)
- Agricultural Services (20)
- Forestry (1)
- Construction & Mining
- Oil And Gas Extraction (65)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (1)
- Building Construction General Contractors And Operative Builders (31)
- Heavy Construction Other Than Building Construction Contractors (8)
- Construction Special Trade Contractors (50)
- Manufacturing
- Food And Kindred Products (5)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (2)
- Lumber And Wood Products, Except Furniture (3)
- Printing, Publishing, And Allied Industries (4)
- Chemicals And Allied Products (3)
- Petroleum Refining And Related Industries (10)
- Stone, Clay, Glass, And Concrete Products (1)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (2)
- Industrial And Commercial Machinery And Computer Equipment (8)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (1)
- Transportation Equipment (1)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (1)
- Miscellaneous Manufacturing Industries (2)
- Transportation & Utilities
- Local And Suburban Transit And Interurban Highway Passenger Transportation (2)
- Transportation & Utilities (con't)
- Motor Freight Transportation And Warehousing (31)
- United States Postal Service (1)
- Transportation By Air (3)
- Pipelines, Except Natural Gas (1)
- Transportation Services (4)
- Communications (9)
- Electric, Gas, And Sanitary Services (13)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (45)
- Wholesale Trade-non-durable Goods (33)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (15)
- General Merchandise Stores (7)
- Food Stores (18)
- Automotive Dealers And Gasoline Service Stations (32)
- Apparel And Accessory Stores (9)
- Home Furniture, Furnishings, And Equipment Stores (13)
- Eating And Drinking Places (40)
- Miscellaneous Retail (56)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (9)
- Personal Services (25)
- Business Services (145)
- Automotive Repair, Services, And Parking (27)
- Miscellaneous Repair Services (22)
- Motion Pictures (5)
- Amusement And Recreation Services (12)
- Health Services (33)
- Legal Services (5)
- Educational Services (25)
- Social Services (26)
- Museums, Art Galleries, And Botanical And Zoological Gardens (3)
- Membership Organizations (54)
- Engineering, Accounting, Research, Management, And Related Services (28)
- Miscellaneous Services (8)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (4)
- Justice, Public Order, And Safety (13)
- Public Finance, Taxation, And Monetary Policy (1)
- Administration Of Human Resource Programs (3)
- Administration Of Environmental Quality And Housing Programs (3)
- Administration Of Economic Programs (3)
- National Security And International Affairs (3)
- Nonclassifiable Establishments (85)
