CEO: Lynn Blodgett (also president and director)
Revenue: $6.16 billion (up 6.7 percent)
ACS employs roughly 74,000 people supporting client operations reaching more than 100 countries. It provides business process and information technology solutions to world-class commercial and government clients. Blodgett was recently honored by the International Association of Outsourcing Professionals, which named him to the Outsourcing Hall of Fame for his lifelong contributions to the industry of outsourcing.