Lockheed Martin (NYSE: LMT) is an American aerospace, defence, security, and advanced technology company with worldwide interests. It was formed by the merger of Lockheed with Martin Marietta in 1995. It is headquartered in Bethesda, Maryland, in the Washington Metropolitan Area. Lockheed Martin employs 146,000 people worldwide. Robert J. Stevens is the current Chairman, President, and Chief Executive Officer.
Lockheed Martin is the world's largest defense contractor by revenue as of 2008. In 2005, 95% of Lockheed Martin's revenues came from the United States Department of Defense, other U.S. federal government agencies, and foreign military customers.