Leidos Holdings, Inc. provides scientific, engineering, systems integration, and technical services primarily to U.S. government customers including the Department of Defense, Department of Homeland Security, and Intelligence Community. It operates segments focused on national security and digital solutions, health and civil services, commercial and international markets, and defense systems, covering areas such as cybersecurity, intelligence analysis, aviation, air traffic control, biomedical research, and critical infrastructure. Headquartered in Reston, Virginia, the company was founded in 1969.