Perot Systems was an information technology services provider founded in 1988 by a group of investors led by Ross Perot and based in Plano, Texas, United States. A Fortune 1000 corporation with offices in more than 25 countries, Perot Systems employed more than 23,000 people and had an annual revenue of $2.8 billion prior to its acquisition in 2009 by Dell, Inc. for $3.9 Billion.