YAHOOYahoo Inc (Yahoo!) operates a search engine, directory, web portal, and Internet services.

The company was founded by Stanford University students Jerry Yang and David Filo.  For many years its directory was one of the most widely used sites on the Internet.  However its search business was eclipsed by its better-known rival, Google.


701 1st Avenue
Sunnyvale, CA 94089

Founded in January 1994 as “Jerry and David’s guide to the World Wide Web”; relaunched as Yahoo! in March 1995.

13,800 employees (as of 2014)