Annual Reports & 10-K's
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— SEC File (Q-Data) microfiche set consists of annual reports, 10-K reports and proxy statements of publicly traded companies from 1978-1999. The Business Library also has a small collection of paper copies of annual reports for the Fortune 100 for the last three years.

International Directory of Company Histories
Book: Reference fHD 2721 .I57 1988
— Contains information on over 39,000 companies that have achieved a minimum of $50 million in annual sales and are leading influences in their industries or geographical locations. Includes public, private and non-profit entities. (many volumes)

Mergent Company Archives Manual
Book: Reference fHD 2746.55 .U5 M47 2001 & Supplements: fHD 2746.55 .U5 M472 2002--   
— Contains the final statistical record of over 2,700 companies which have merged, were acquired, went bankrupt or otherwise disappeared as private companies from 1996 forward. There are also Supplements which contain information on additional companies that have disappeared since 2002.