Leonardo SpA engages in the aerospace, defense and security sectors. The company is headquartered in Rome, Roma and currently employs 61,265 full-time employees. The firm is active in the domestic market and internationally, mainly in four markets, such as Italy, the United Kingdom, The United States and Poland. The firm operates in seven business sectors, such as Helicopters, Defense and Security, Electronics, Aeronautics, Space, Defense Systems and Other Activities. In addition, the Company operates through subsidiaries and joint ventures, including DRS Technologies Group (defense products, services and integrated support), Telespazio Group (providers of satellite services), Thales Alenia Space Group (satellite services and space manufacture), MBDA Group (missile systems), GIE ATR (regional aircraft) and Sistemi Dinamici SpA.