Lockheed Martin (NYSE: LMT) is an American global aerospace, defense, security and advanced technology company with worldwide interests. It was formed by the merger of Lockheed Corporation with Martin Marietta in March 1995. It is headquartered in Bethesda, Maryland, in the Washington DC area. Lockheed Martin employs 116,000 people worldwide. Marillyn Hewson is the current President and Chief Executive Officer.Lockheed Martin is one of the world's largest defense contractors; in 2009, 74% of Lockheed Martin's revenues came from military sales. It received 7.1% of the funds paid out by the Pentagon.Lockheed Martin operates in five business segments. These comprise Aeronautics, Information Systems & Global Solutions, Missile and Fire Control, Mission Systems and Training, and Space Systems. In 2009 US government contracts accounted for $38.4 billion (85%), foreign government contracts $5.8 billion (13%), and commercial and other contracts for $900 million (2%). In both 2009 and 2008 the company topped the list of US federal government contractors.The company has received the Collier Trophy six times, including in 2001 for being part of developing the X-35/F-35B LiftFan Propulsion System, and most recently in 2006 for leading the team that developed the F-22 Raptor fighter jet. Lockheed Martin is currently developing the F-35 Lightning II.