Microsoft
The recession of 1973 to 1975 saw a Harvard dropout named Bill Gates start a small company in Albuquerque, N.M. that specialized in developing computer languages. Microsoft's first blockbuster product, MS-DOS, went on to power IBM computers. Today, Microsoft Windows and Office products are found on the majority of computers. That, along with its many other products, results in more than US$60 billion per year in revenue.