Leidos Holdings, Inc. specializes in the provision of engineering, technological and scientific services. Net sales by business segment break down as follows:
- defense (56.6%): design, engineering and integration of technological solutions for intelligence, airborne surveillance and reconnaissance, maritime and land-based solutions, electronic warfare systems, and automated sensor, alarm, command and control systems, software development, cyber security solutions and data processing and analysis solutions, IT infrastructure development and integration, etc.;
- civil security (23.7%): development and integration of solutions for the protection of goods, data and digital information, solutions and systems for air traffic flow control and flight data management, vehicle and cargo inspection, explosives and radiation detection, computer security, environmental management, nuclear security, complex logistics management, etc.;
- health (19.7%): integration of complex systems and technological infrastructures for the management of data, medical information and electronic health records, provision of healthcare services, IT systems lifecycle management, research and development of biopharmaceuticals, etc.
Net sales by market are divided between the US Department of Defense and the intelligence community (49.4%), government agencies (37.4%) and commercial customers (13.2%).
The United States accounts for 91,4% of net sales.
LEIDOS HOLDINGS, INC. 
