Apparel and Other Textile Products (5191 Companies)
Chemicals and Allied Products (6183 Companies)
Electrical Equipment and Components (8946 Companies)
Food and Kindred Products (8031 Companies)
Furniture and Fixtures (3205 Companies)
Industrial/Commercial Machinery/Computer Equip (15090 Companies)
Leather and Leather Products (731 Companies)
Lumber and Wood Products (4774 Companies)
Paper and Allied Products (4407 Companies)
Petroleum and Coal Products (1331 Companies)
Printing and Publishing (7203 Companies)
Rubber/Misc. Plastic Products (7960 Companies)
Stone, Clay, Glass and Concrete Products (4503 Companies)
Textile Mill Products (2624 Companies)
Tobacco Manufacturing (87 Companies)
Transportation Equipment (4769 Companies)

Agriculture Production - Crops (136 Companies)
Agriculture Services (197 Companies)
Forestry (14 Companies)
Livestock and Animal Specialties (66 Companies)

Coal/Lignite Mining (41 Companies)
Forestry (449 Companies)
Metal Mining (34 Companies)
Oil and Gas Extraction (811 Companies)

Durable Goods (32674 Companies)
Non-Durable Goods (15093 Companies)

General Building Contractors (1252 Companies)
Heavy Construction Contractors (1066 Companies)
Special Trade Contractors (5819 Companies)

Apparel & Accessory Stores (317 Companies)
Automobile Dealers & Gasoline Service Stations (913 Companies)
Building Materials, Hardware, Garden Supplies ... (1747 Companies)
Eating & Drinking Places (239 Companies)
Food Stores (741 Companies)
General Merchandise Stores (132 Companies)
Home Furniture, Furnishings and Equipment Stores (1152 Companies)
Miscellaneons Retail (1992 Companies)

Communications (1020 Companies)
Electric, Gas & Sanitary Services (806 Companies)
Local, Suburban Transit & Interurban Hwy Pass Transit (720 Companies)
Motor Freight Transportation (2203 Companies)
Pipe Lines, Except Natural Gas (51 Companies)
Railroad Transportation (47 Companies)
Transportation By Air (349 Companies)
Transportation Services (738 Companies)
Water Transportation (134 Companies)