- Agriculture, Forestry & Fishing
- Agricultural Production Crops (27)
- Agriculture production livestock and animal specialties (17)
- Agricultural Services (261)
- Forestry (3)
- Fishing, hunting, and trapping (2)
- Construction & Mining
- Metal Mining (1)
- Coal Mining (2)
- Oil And Gas Extraction (7)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (10)
- Building Construction General Contractors And Operative Builders (651)
- Heavy Construction Other Than Building Construction Contractors (81)
- Construction Special Trade Contractors (1462)
- Manufacturing
- Food And Kindred Products (67)
- Tobacco Products (2)
- Textile Mill Products (38)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (82)
- Lumber And Wood Products, Except Furniture (116)
- Furniture And Fixtures (55)
- Paper And Allied Products (29)
- Printing, Publishing, And Allied Industries (302)
- Chemicals And Allied Products (77)
- Petroleum Refining And Related Industries (9)
- Rubber And Miscellaneous Plastics Products (78)
- Leather And Leather Products (12)
- Stone, Clay, Glass, And Concrete Products (68)
- Primary Metal Industries (34)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (231)
- Manufacturing (con't)
- Industrial And Commercial Machinery And Computer Equipment (322)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (202)
- Transportation Equipment (90)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (99)
- Miscellaneous Manufacturing Industries (215)
- Transportation & Utilities
- Railroad Transportation (1)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (97)
- Motor Freight Transportation And Warehousing (318)
- United States Postal Service (6)
- Water Transportation (7)
- Transportation By Air (9)
- Transportation Services (294)
- Communications (233)
- Electric, Gas, And Sanitary Services (55)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (1622)
- Wholesale Trade-non-durable Goods (674)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (295)
- General Merchandise Stores (67)
- Food Stores (454)
- Automotive Dealers And Gasoline Service Stations (561)
- Apparel And Accessory Stores (415)
- Home Furniture, Furnishings, And Equipment Stores (512)
- Eating And Drinking Places (1026)
- Miscellaneous Retail (1340)
- Finance, Insurance & Real Estate (con't)
- Insurance Carriers (60)
- Insurance Agents, Brokers, And Service (351)
- Real Estate (1102)
- Holding And Other Investment Offices (434)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (235)
- Personal Services (1017)
- Business Services (5108)
- Automotive Repair, Services, And Parking (627)
- Miscellaneous Repair Services (669)
- Motion Pictures (148)
- Amusement And Recreation Services (413)
- Health Services (1461)
- Legal Services (296)
- Educational Services (296)
- Social Services (360)
- Museums, Art Galleries, And Botanical And Zoological Gardens (22)
- Membership Organizations (648)
- Engineering, Accounting, Research, Management, And Related Services (1525)
- Miscellaneous Services (332)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (34)
- Justice, Public Order, And Safety (24)
- Public Finance, Taxation, And Monetary Policy (5)
- Administration Of Human Resource Programs (15)
- Administration Of Environmental Quality And Housing Programs (17)
- Administration Of Economic Programs (17)
- National Security And International Affairs (7)
- Nonclassifiable Establishments (3104)