Agriculture & Forestry
- Agriculture Production – Crops (136 Companies)
- Agriculture Services (197 Companies)
- Forestry (14 Companies)
- Livestock and Animal Specialties (66 Companies)
Construction
Industrial Directory By SIC Codes
Construction (SIC Code 15-17)
Manufacturing
- Apparel and Other Textile Products (5192 Companies)
- Chemicals and Allied Products (6180 Companies)
- Electrical Equipment and Components (8945 Companies)
- Food and Kindred Products (8028 Companies)
- Furniture and Fixtures (3203 Companies)
- Industrial/Commercial Machinery/Computer Equipment (15092 Companies)
- Leather and Leather Products (730 Companies)
- Lumber and Wood Products (4773 Companies)
- Paper and Allied Products (4408 Companies)
- Petroleum and Coal Products (1331 Companies)
- Printing and Publishing (7205 Companies)
- Rubber/Misc. Plastic Products (7956 Companies)
- Stone, Clay, Glass and Concrete Products (4503 Companies)
- Textile Mill Products (2624 Companies)
- Tobacco Manufacturing (87 Companies)
- Transportation Equipment (4769 Companies)
Mining
- Coal/Lignite Mining (41 Companies)
- Nonmetallic minerals, except fuels (448 Companies)
- Metal Mining (34 Companies)
- Oil and Gas Extraction (812 Companies)
Retail Trade
Industrial Directory By SIC Codes
Retail Trade
- Apparel & Accessory Stores (sic code 56 / 317 companies)
- Automobile Dealers & Gasoline Service Stations (sic code 55 / 913 companies)
- Building Materials, Hardware, Garden Supplies … (sic code 52 / 1747 companies)
- Eating & Drinking Places (sic code 58 / 239 companies)
- Food Stores (sic code 54 / 741 companies)
- General Merchandise Stores (sic code 53 / 132 companies)
- Home Furniture, Furnishings and Equipment Stores (sic code 57 / 1152 companies)
- Miscellaneons Retail (sic code 59 / 1992 companies)
Transportation
- 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)