- Agriculture, Forestry & Fishing
- Agricultural Production Crops (30)
- Agriculture production livestock and animal specialties (44)
- Agricultural Services (81)
- Forestry (11)
- Fishing, hunting, and trapping (2)
- Construction & Mining
- Metal Mining (2)
- Coal Mining (4)
- Oil And Gas Extraction (35)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (6)
- Building Construction General Contractors And Operative Builders (264)
- Heavy Construction Other Than Building Construction Contractors (32)
- Construction Special Trade Contractors (351)
- Manufacturing
- Food And Kindred Products (11)
- Textile Mill Products (5)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (14)
- Lumber And Wood Products, Except Furniture (28)
- Furniture And Fixtures (8)
- Paper And Allied Products (1)
- Printing, Publishing, And Allied Industries (34)
- Chemicals And Allied Products (8)
- Petroleum Refining And Related Industries (6)
- Rubber And Miscellaneous Plastics Products (1)
- Leather And Leather Products (2)
- Stone, Clay, Glass, And Concrete Products (13)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (10)
- Industrial And Commercial Machinery And Computer Equipment (16)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (12)
- Manufacturing (con't)
- Transportation Equipment (5)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (9)
- Miscellaneous Manufacturing Industries (23)
- Transportation & Utilities
- Railroad Transportation (2)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (10)
- Motor Freight Transportation And Warehousing (64)
- United States Postal Service (2)
- Water Transportation (5)
- Transportation By Air (8)
- Pipelines, Except Natural Gas (1)
- Transportation Services (36)
- Communications (41)
- Electric, Gas, And Sanitary Services (34)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (148)
- Wholesale Trade-non-durable Goods (73)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (66)
- General Merchandise Stores (7)
- Food Stores (55)
- Automotive Dealers And Gasoline Service Stations (72)
- Apparel And Accessory Stores (76)
- Home Furniture, Furnishings, And Equipment Stores (100)
- Eating And Drinking Places (176)
- Miscellaneous Retail (298)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (51)
- Real Estate (317)
- Holding And Other Investment Offices (108)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (90)
- Personal Services (170)
- Business Services (1268)
- Automotive Repair, Services, And Parking (98)
- Miscellaneous Repair Services (101)
- Motion Pictures (36)
- Amusement And Recreation Services (120)
- Health Services (340)
- Legal Services (94)
- Educational Services (46)
- Social Services (134)
- Museums, Art Galleries, And Botanical And Zoological Gardens (13)
- Membership Organizations (130)
- Engineering, Accounting, Research, Management, And Related Services (375)
- Miscellaneous Services (63)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (16)
- Justice, Public Order, And Safety (17)
- Public Finance, Taxation, And Monetary Policy (1)
- Administration Of Human Resource Programs (4)
- Administration Of Environmental Quality And Housing Programs (15)
- Administration Of Economic Programs (9)
- National Security And International Affairs (3)
- Nonclassifiable Establishments (536)
