Leidos, Inc. is a leading science and technology solutions company that specializes in defense, aviation, information technology, and biomedical research. They generate revenue primarily through government contracts and commercial partnerships, delivering advanced solutions in areas like cybersecurity, data analytics, and systems engineering. Founded in 1969 as Science Applications International Corporation (SAIC), the company rebranded to Leidos in 2013 following a split. Key historical milestones include its significant role in national security and its expansion through strategic acquisitions.