Exelis Inc. (Exelis) is engaged in Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance (C4ISR) related products and systems and information and technical services, which the Company supplies to military, government and commercial customers in the United States and globally. The Company's customers include the United States Department of Defense (DoD), including the United States Army, Navy, Marines and Air Force, and its prime contractors, the United States Government intelligence agencies, National Aeronautics and Space Administration (NASA), Federal Aviation Administration (FAA), allied foreign governments and domestic and foreign commercial customers. As a prime contractor, subcontractor, or preferred supplier, the Company participates in many high priority defense and non-defense programs in the United States. In January 2013, it acquired C4i Pty. Ltd.