- Agriculture, Forestry & Fishing
- Agricultural Production Crops (16)
- Agriculture production livestock and animal specialties (10)
- Agricultural Services (154)
- Forestry (6)
- Fishing, hunting, and trapping (1)
- Construction & Mining
- Metal Mining (1)
- Oil And Gas Extraction (21)
- Mining And Quarrying Of Nonmetallic Minerals, Except Fuels (4)
- Building Construction General Contractors And Operative Builders (494)
- Heavy Construction Other Than Building Construction Contractors (34)
- Construction Special Trade Contractors (840)
- Manufacturing
- Food And Kindred Products (42)
- Textile Mill Products (16)
- Apparel And Other Finished Products Made From Fabrics And Similar Materials (63)
- Lumber And Wood Products, Except Furniture (48)
- Furniture And Fixtures (29)
- Paper And Allied Products (9)
- Printing, Publishing, And Allied Industries (179)
- Chemicals And Allied Products (52)
- Petroleum Refining And Related Industries (8)
- Rubber And Miscellaneous Plastics Products (53)
- Leather And Leather Products (13)
- Stone, Clay, Glass, And Concrete Products (29)
- Primary Metal Industries (17)
- Fabricated Metal Products, Except Machinery And Transportation Equipment (101)
- Industrial And Commercial Machinery And Computer Equipment (167)
- Electronic And Other Electrical Equipment And Components, Except Computer Equipment (96)
- Manufacturing (con't)
- Transportation Equipment (61)
- Measuring, Analyzing, And Controlling Instruments; Photographic, Medical And Optical Goods; Watches And Clocks (73)
- Miscellaneous Manufacturing Industries (200)
- Transportation & Utilities
- Railroad Transportation (3)
- Local And Suburban Transit And Interurban Highway Passenger Transportation (40)
- Motor Freight Transportation And Warehousing (120)
- United States Postal Service (4)
- Water Transportation (32)
- Transportation By Air (9)
- Pipelines, Except Natural Gas (1)
- Transportation Services (173)
- Communications (176)
- Electric, Gas, And Sanitary Services (33)
- Retail & Wholesale Trade
- Wholesale Trade-durable Goods (856)
- Wholesale Trade-non-durable Goods (467)
- Building Materials, Hardware, Garden Supply, And Mobile Home Dealers (131)
- General Merchandise Stores (27)
- Food Stores (235)
- Automotive Dealers And Gasoline Service Stations (285)
- Apparel And Accessory Stores (242)
- Home Furniture, Furnishings, And Equipment Stores (312)
- Eating And Drinking Places (647)
- Miscellaneous Retail (877)
- Finance, Insurance & Real Estate (con't)
- Insurance Agents, Brokers, And Service (201)
- Real Estate (855)
- Holding And Other Investment Offices (346)
- Services
- Hotels, Rooming Houses, Camps, And Other Lodging Places (45)
- Personal Services (677)
- Business Services (4247)
- Automotive Repair, Services, And Parking (393)
- Miscellaneous Repair Services (384)
- Motion Pictures (112)
- Amusement And Recreation Services (324)
- Health Services (970)
- Legal Services (196)
- Educational Services (154)
- Social Services (208)
- Museums, Art Galleries, And Botanical And Zoological Gardens (10)
- Membership Organizations (254)
- Engineering, Accounting, Research, Management, And Related Services (1382)
- Miscellaneous Services (211)
- Public Administration
- Executive, Legislative, And General Government, Except Finance (17)
- Justice, Public Order, And Safety (15)
- Administration Of Human Resource Programs (3)
- Administration Of Environmental Quality And Housing Programs (4)
- Administration Of Economic Programs (2)
- National Security And International Affairs (8)
- Nonclassifiable Establishments (1971)
