Apparel and Other Textile Products (5192 Companies)
Chemicals and Allied Products (6178 Companies)
Electrical Equipment and Components (8945 Companies)
Food and Kindred Products (8027 Companies)
Furniture and Fixtures (3203 Companies)
Industrial/Commercial Machinery/Computer Equip (15092 Companies)
Leather and Leather Products (730 Companies)
Lumber and Wood Products (4773 Companies)
Paper and Allied Products (4407 Companies)
Petroleum and Coal Products (1331 Companies)
Printing and Publishing (7204 Companies)
Rubber/Misc. Plastic Products (7956 Companies)
Stone, Clay, Glass and Concrete Products (4503 Companies)
Textile Mill Products (2623 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 (448 Companies)
Metal Mining (34 Companies)
Oil and Gas Extraction (812 Companies)

Durable Goods (32674 Companies)
Non-Durable Goods (15086 Companies)

General Building Contractors (1251 Companies)
Heavy Construction Contractors (1066 Companies)
Special Trade Contractors (5821 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 (740 Companies)
General Merchandise Stores (132 Companies)
Home Furniture, Furnishings and Equipment Stores (1151 Companies)
Miscellaneons Retail (1992 Companies)

Communications (1021 Companies)
Electric, Gas & Sanitary Services (806 Companies)
Local, Suburban Transit & Interurban Hwy Pass Transit (723 Companies)
Motor Freight Transportation (2204 Companies)
Pipe Lines, Except Natural Gas (51 Companies)
Railroad Transportation (47 Companies)
Transportation By Air (351 Companies)
Transportation Services (738 Companies)
Water Transportation (134 Companies)