- Agriculture, Forestry & Fishing
- Agricultural Production Crops (72)
- Agriculture production livestock and animal specialties (31)
- Agricultural Services (31)
- Forestry (1)
- Fishing, hunting, and trapping (1)
- Construction & Mining
- Oil And Gas Extraction (70)
- Building Construction General Contractors And Operative Builders (63)
- Heavy Construction Other Than Building Construction Contractors (9)
- Construction Special Trade Contractors (126)
- Manufacturing
- Food And Kindred Products (5)
- Textile Mill Products (1)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (5)
- Lumber And Wood Products, Except Furniture (8)
- Furniture And Fixtures (2)
- Printing, Publishing, And Allied Industries (21)
- Chemicals And Allied Products (4)
- Petroleum Refining And Related Industries (3)
- Stone, Clay, Glass, And Concrete Products (3)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (8)
- Industrial And Commercial Machinery And Computer Equipment (15)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (8)
- Transportation Equipment (4)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (3)
- Miscellaneous Manufacturing Industries (5)
- Transportation & Utilities
- Railroad Transportation (1)
- Transportation & Utilities (con't)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (7)
- Motor Freight Transportation And Warehousing (38)
- United States Postal Service (1)
- Water Transportation (1)
- Transportation By Air (5)
- Pipelines, Except Natural Gas (1)
- Transportation Services (6)
- Communications (26)
- Electric, Gas, And Sanitary Services (17)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (97)
- Wholesale Trade-non-durable Goods (49)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (36)
- General Merchandise Stores (9)
- Food Stores (38)
- Automotive Dealers And Gasoline Service Stations (47)
- Apparel And Accessory Stores (30)
- Home Furniture, Furnishings, And Equipment Stores (46)
- Eating And Drinking Places (95)
- Miscellaneous Retail (144)
- Finance, Insurance & Real Estate (con't)
- Holding And Other Investment Offices (35)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (28)
- Personal Services (88)
- Business Services (475)
- Automotive Repair, Services, And Parking (57)
- Miscellaneous Repair Services (55)
- Motion Pictures (7)
- Amusement And Recreation Services (40)
- Health Services (148)
- Legal Services (24)
- Educational Services (32)
- Social Services (53)
- Museums, Art Galleries, And Botanical And Zoological Gardens (4)
- Membership Organizations (81)
- Engineering, Accounting, Research, Management, And Related Services (71)
- Miscellaneous Services (26)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (15)
- Justice, Public Order, And Safety (9)
- Public Finance, Taxation, And Monetary Policy (1)
- Administration Of Human Resource Programs (7)
- Administration Of Environmental Quality And Housing Programs (7)
- Administration Of Economic Programs (7)
- National Security And International Affairs (7)
- Nonclassifiable Establishments (192)
