- Agriculture, Forestry & Fishing
- Agricultural Production Crops (268)
- Agriculture production livestock and animal specialties (184)
- Agricultural Services (799)
- Forestry (11)
- Fishing, hunting, and trapping (1)
- Construction & Mining
- Metal Mining (1)
- Coal Mining (3)
- Oil And Gas Extraction (10)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (11)
- Building Construction General Contractors And Operative Builders (835)
- Heavy Construction Other Than Building Construction Contractors (85)
- Construction Special Trade Contractors (1691)
- Manufacturing
- Food And Kindred Products (27)
- Textile Mill Products (8)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (31)
- Lumber And Wood Products, Except Furniture (86)
- Furniture And Fixtures (30)
- Paper And Allied Products (15)
- Printing, Publishing, And Allied Industries (114)
- Chemicals And Allied Products (31)
- Petroleum Refining And Related Industries (7)
- Rubber And Miscellaneous Plastics Products (18)
- Leather And Leather Products (7)
- Stone, Clay, Glass, And Concrete Products (38)
- Primary Metal Industries (17)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (69)
- Industrial And Commercial Machinery And Computer Equipment (69)
- Manufacturing (con't)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (40)
- Transportation Equipment (49)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (24)
- Miscellaneous Manufacturing Industries (113)
- Transportation & Utilities
- Railroad Transportation (4)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (42)
- Motor Freight Transportation And Warehousing (388)
- United States Postal Service (2)
- Water Transportation (6)
- Transportation By Air (16)
- Transportation Services (216)
- Communications (166)
- Electric, Gas, And Sanitary Services (64)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (710)
- Wholesale Trade-non-durable Goods (296)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (213)
- General Merchandise Stores (63)
- Food Stores (311)
- Automotive Dealers And Gasoline Service Stations (400)
- Apparel And Accessory Stores (197)
- Home Furniture, Furnishings, And Equipment Stores (362)
- Eating And Drinking Places (636)
- Miscellaneous Retail (962)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (209)
- Real Estate (985)
- Holding And Other Investment Offices (443)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (107)
- Personal Services (757)
- Business Services (4889)
- Automotive Repair, Services, And Parking (513)
- Miscellaneous Repair Services (509)
- Motion Pictures (64)
- Amusement And Recreation Services (338)
- Health Services (1028)
- Legal Services (242)
- Educational Services (193)
- Social Services (364)
- Museums, Art Galleries, And Botanical And Zoological Gardens (11)
- Membership Organizations (671)
- Engineering, Accounting, Research, Management, And Related Services (768)
- Miscellaneous Services (379)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (47)
- Justice, Public Order, And Safety (56)
- Public Finance, Taxation, And Monetary Policy (8)
- Administration Of Human Resource Programs (20)
- Administration Of Environmental Quality And Housing Programs (15)
- Administration Of Economic Programs (13)
- National Security And International Affairs (3)
- Nonclassifiable Establishments (2899)
