These are some of the best resources for finding the address and phone number of a company. They are included here for their convenience, comprehensiveness, and/or ease of use. Additional resources on the company profiles page can also be used if they are more convenient.

If you are looking for an organization which is not a company, check our related directories page.

If you are having trouble finding a company:

• Check alternate spellings.
• Check regional directories if it is a local company.
• Check to see if a specialized industry directory is available which may be more comprehensive.
• Consider that it may be a "non-company" involved in business activities. Check related directories.
• Search for an internet site for the company. It may be too new to yet appear in these resources, or may be a home-based business which often won't appear in the directories.

Online Resources:

Thomas Register of American Manufacturers: Comprehensive directory of American MANUFACTURING Companies.

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Print Resources:

D & B Business Locator: Provides address, phone number, and type of business information for over 10 million U.S. businesses. This is the most comprehensive published directory of companies available in University of Pittsburgh libraries.
BUSINESS LIBRARY - CD-ROM

D& B Regional Business Directory. Pittsburgh Area.
HILLMAN LIBRARY - Reference (HG4085 .P6D86)

D & B Million Dollar Directory
BUSINESS LIBRARY - Journals
HILLMAN LIBRARY - Reference (HC102 D897)

Fax USA
HILLMAN LIBRARY - Reference (HE7771 F39)

Toll Free Phone Book USA
HILLMAN LIBRARY - Reference Desk (HE8811 T645)
LAW LIBRARY - Reference (HE8811 .T645)

 

Ward's Business Directory
BUSINESS LIBRARY - Reference (HG4009 W373)
HILLMAN LIBRARY - Reference Desk (HG4009 W373)