You do realize that the majority of tech companies in the U.S. are on the west coast? This may be a good place to start: http://www.crunchbase.com/search/advan

You do realize that the majority of tech companies in the U.S. are on the west coast? This may be a good place to start: http://www.crunchbase.com/search/advanced/companies/1987518 http://www.crunchbase.com/search/advanced/companies/1987518 You seem to want more established companies, so showing ones with over 500 employees, within 500 miles of the Bay Area. I think you will find that there is a great deal of depth in terms of the number of successful tech companies out this way.