- Agriculture, Forestry & Fishing
- Agricultural Production Crops (37)
- Agriculture production livestock and animal specialties (48)
- Agricultural Services (23)
- Forestry (1)
- Fishing, hunting, and trapping (2)
- Construction & Mining
- Oil And Gas Extraction (115)
- Building Construction General Contractors And Operative Builders (24)
- Heavy Construction Other Than Building Construction Contractors (15)
- Construction Special Trade Contractors (68)
- Manufacturing
- Food And Kindred Products (1)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (3)
- Lumber And Wood Products, Except Furniture (3)
- Printing, Publishing, And Allied Industries (7)
- Chemicals And Allied Products (3)
- Petroleum Refining And Related Industries (3)
- Rubber And Miscellaneous Plastics Products (3)
- Leather And Leather Products (2)
- Stone, Clay, Glass, And Concrete Products (4)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (9)
- Industrial And Commercial Machinery And Computer Equipment (20)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (2)
- Transportation Equipment (4)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (2)
- Miscellaneous Manufacturing Industries (16)
- Transportation & Utilities
- Local And Suburban Transit And Interurban Highway Passenger Transportation (5)
- Motor Freight Transportation And Warehousing (23)
- United States Postal Service (1)
- Transportation By Air (2)
- Pipelines, Except Natural Gas (3)
- Transportation Services (9)
- Communications (18)
- Electric, Gas, And Sanitary Services (17)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (91)
- Wholesale Trade-non-durable Goods (31)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (25)
- General Merchandise Stores (9)
- Food Stores (26)
- Automotive Dealers And Gasoline Service Stations (51)
- Apparel And Accessory Stores (22)
- Home Furniture, Furnishings, And Equipment Stores (32)
- Eating And Drinking Places (66)
- Miscellaneous Retail (137)
- Finance, Insurance & Real Estate (con't)
- Holding And Other Investment Offices (13)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (15)
- Personal Services (70)
- Business Services (314)
- Automotive Repair, Services, And Parking (54)
- Miscellaneous Repair Services (59)
- Motion Pictures (6)
- Amusement And Recreation Services (25)
- Health Services (68)
- Legal Services (15)
- Educational Services (23)
- Social Services (38)
- Museums, Art Galleries, And Botanical And Zoological Gardens (2)
- Membership Organizations (89)
- Engineering, Accounting, Research, Management, And Related Services (54)
- Miscellaneous Services (15)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (6)
- Justice, Public Order, And Safety (15)
- Public Finance, Taxation, And Monetary Policy (1)
- Administration Of Human Resource Programs (5)
- Administration Of Environmental Quality And Housing Programs (2)
- Administration Of Economic Programs (6)
- National Security And International Affairs (1)
- Nonclassifiable Establishments (145)
