 H. Ross Perot and eight associates founded Perot Systems in June 1988 after having sold EDS to General Motors.Before its acquisition by Dell Inc. in September 2009, Perot Systems was a Fortune 1000 corporation with more than 23,000 associates and annual revenue (2008) of $2.8 billion.The company maintained offices in more than 25 countries around the world, including the United States, Europe, India, China, and Mexico.