Apparel and Other Textile Products (5190 Companies)
Chemicals and Allied Products (6176 Companies)
Electrical Equipment and Components (8945 Companies)
Food and Kindred Products (8026 Companies)
Furniture and Fixtures (3201 Companies)
Industrial/Commercial Machinery/Computer Equip (15072 Companies)
Leather and Leather Products (731 Companies)
Lumber and Wood Products (4772 Companies)
Paper and Allied Products (4405 Companies)
Petroleum and Coal Products (1331 Companies)
Printing and Publishing (7198 Companies)
Rubber/Misc. Plastic Products (7952 Companies)
Stone, Clay, Glass and Concrete Products (4504 Companies)
Textile Mill Products (2622 Companies)
Tobacco Manufacturing (87 Companies)
Transportation Equipment (4770 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 (32668 Companies)
Non-Durable Goods (15085 Companies)

General Building Contractors (1250 Companies)
Heavy Construction Contractors (1065 Companies)
Special Trade Contractors (5815 Companies)

Apparel & Accessory Stores (316 Companies)
Automobile Dealers & Gasoline Service Stations (913 Companies)
Building Materials, Hardware, Garden Supplies ... (1748 Companies)
Eating & Drinking Places (239 Companies)
Food Stores (741 Companies)
General Merchandise Stores (132 Companies)
Home Furniture, Furnishings and Equipment Stores (1149 Companies)
Miscellaneons Retail (1990 Companies)

Communications (1020 Companies)
Electric, Gas & Sanitary Services (806 Companies)
Local, Suburban Transit & Interurban Hwy Pass Transit (720 Companies)
Motor Freight Transportation (2199 Companies)
Pipe Lines, Except Natural Gas (51 Companies)
Railroad Transportation (47 Companies)
Transportation By Air (349 Companies)
Transportation Services (736 Companies)
Water Transportation (134 Companies)