Lockheed Martin Corporation is a global security company that is principally engaged in the research, design, development, manufacture, integration and sustainment of advanced technology systems and products. The Company provides a range of management, engineering, technical, scientific, logistic and information services. It serves both domestic and international customers with products and services that have defense, civil and commercial applications, with its principal customers being agencies of the United States Government. The Company operates in four segments: Electronic Systems, Information Systems and Global Services (IS&GS), Aeronautics and Space Systems. In September 2008, Lockheed Martin Corporation acquired Aculight Corporation. In January 2009, the Company completed its acquisition of Universal Systems & Technology, Inc. (UNITECH).In August 2009, the Company completed its acquisition of Gyrocam Systems LLC.