Leidos

Leidos is a large US-headquartered technology, engineering and science company providing IT, systems integration and operational technology for government and commercial aviation customers, including airport management and air traffic-adjacent programs. Its scale, security clearances and government contracting track record differentiate it from smaller aviation software vendors.

Leidos is a US headquartered technology and engineering services company of roughly 48,000 people whose aviation business serves air navigation service providers, airports and government agencies rather than airlines or MROs. Its air traffic management portfolio includes SkyLine-X and the Common Automation Platform (L-CAP), plus long running FAA programs such as ERAM, ATOP and TFDM, and the 1800wxBrief flight services platform. It also supplies airport security detection systems, including checked baggage screening, passenger checkpoint equipment and automated tray return, and partners with NATS on Intelligent Approach arrival spacing. These are bought through government and airport authority contracting rather than as commercial aviation software.