- Agriculture, Forestry & Fishing
- Agricultural Production Crops (21)
- Agriculture production livestock and animal specialties (13)
- Agricultural Services (188)
- Forestry (9)
- Fishing, hunting, and trapping (10)
- Construction & Mining
- Metal Mining (1)
- Oil And Gas Extraction (3)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (3)
- Building Construction General Contractors And Operative Builders (466)
- Heavy Construction Other Than Building Construction Contractors (46)
- Construction Special Trade Contractors (732)
- Manufacturing
- Food And Kindred Products (26)
- Textile Mill Products (4)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (27)
- Lumber And Wood Products, Except Furniture (45)
- Furniture And Fixtures (20)
- Paper And Allied Products (10)
- Printing, Publishing, And Allied Industries (91)
- Chemicals And Allied Products (17)
- Petroleum Refining And Related Industries (3)
- Rubber And Miscellaneous Plastics Products (8)
- Leather And Leather Products (1)
- Stone, Clay, Glass, And Concrete Products (13)
- Primary Metal Industries (10)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (57)
- Industrial And Commercial Machinery And Computer Equipment (59)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (45)
- Manufacturing (con't)
- Transportation Equipment (50)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (30)
- Miscellaneous Manufacturing Industries (71)
- Transportation & Utilities
- Railroad Transportation (4)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (38)
- Motor Freight Transportation And Warehousing (130)
- United States Postal Service (4)
- Water Transportation (21)
- Transportation By Air (20)
- Pipelines, Except Natural Gas (1)
- Transportation Services (66)
- Communications (76)
- Electric, Gas, And Sanitary Services (25)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (438)
- Wholesale Trade-non-durable Goods (134)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (110)
- General Merchandise Stores (31)
- Food Stores (254)
- Automotive Dealers And Gasoline Service Stations (236)
- Apparel And Accessory Stores (105)
- Home Furniture, Furnishings, And Equipment Stores (219)
- Eating And Drinking Places (478)
- Miscellaneous Retail (597)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (132)
- Real Estate (428)
- Holding And Other Investment Offices (80)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (53)
- Personal Services (535)
- Business Services (1929)
- Automotive Repair, Services, And Parking (270)
- Miscellaneous Repair Services (342)
- Motion Pictures (47)
- Amusement And Recreation Services (187)
- Health Services (601)
- Legal Services (209)
- Educational Services (138)
- Social Services (324)
- Museums, Art Galleries, And Botanical And Zoological Gardens (8)
- Membership Organizations (272)
- Engineering, Accounting, Research, Management, And Related Services (511)
- Miscellaneous Services (158)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (34)
- Justice, Public Order, And Safety (20)
- Public Finance, Taxation, And Monetary Policy (4)
- Administration Of Human Resource Programs (15)
- Administration Of Environmental Quality And Housing Programs (13)
- Administration Of Economic Programs (14)
- National Security And International Affairs (13)
- Nonclassifiable Establishments (802)
