Thomas A. Bell
Chief Executive Officer
Tom Bell is the Chief Executive Officer of Leidos (NYSE: LDOS), a $17 billion leading technology and national security company delivering smarter and more efficient hardware and software solutions across defense, intelligence, homeland security, digital modernization, and health.
Since becoming CEO in 2023, Bell has led Leidos through a period of significant strategic transformation, positioning the company at the intersection of advanced technology and mission outcomes. Now, he is executing the company’s NorthStar 2030 strategy, accelerating its core growth pillars including space and maritime, energy infrastructure, digital modernization and cyber, mission software, and managed health services.
Bell is strengthening Leidos’ role as a trusted innovation partner to governments and critical infrastructure operators worldwide. His leadership emphasizes scaled technology delivery, alignment with evolving national priorities, and acceleration of capabilities in AI, cutting-edge defense tech, and critical infrastructure modernization. Under his leadership, the company has delivered consistent, strong operational performance, record revenues, and industry-leading profitability.
Bell brings nearly four decades of experience across the aerospace, defense, and advanced technology sectors. Prior to Leidos, he served as President of Rolls-Royce Defense and Chairman and CEO of Rolls-Royce North America, where he led global operations supporting aerospace, naval, and nuclear submarine missions.
Earlier, he spent more than 20 years at Boeing in senior leadership roles across strategy, global sales, and international operations, advancing major defense programs and shaping long-term market strategy. He began his career in human spaceflight engineering with Martin Marietta (now Lockheed Martin).
Bell holds a Bachelor of Arts from Louisiana State University and an MBA from the Florida Institute of Technology. He serves on the Executive Committee of the Aerospace Industries Association, the Board of the Professional Services Council, and is a member of the Business Roundtable.