Tristan Bannon serves as Chief Commercial Officer (CCO) at CellCube Energy Storage GmbH, a global leader in non-lithium, grid-scale energy storage solutions. CellCube specializes in modular vanadium redox flow battery (VRFB) technology, delivering scalable long-duration energy storage systems tailored for critical infrastructure, utilities, data centers, campuses, national security, and commercial and industrial clients.
In his role, Tristan leads CellCube’s global commercial strategy, overseeing project development, client engagement, strategic partnerships, marketing, and external affairs. His leadership is instrumental in advancing the company’s mission to accelerate energy resilience and sustainability through innovative storage technologies. He is an expert in technology and policy issues, particularly at the intersection of energy and national security.
Prior to joining CellCube in 2025, Tristan was Executive Director for Resilient Energy Infrastructure at Leidos, a Fortune 500 engineering and technology firm with over 47,000 employees and annual revenues exceeding USD 16 billion. At Leidos, he directed strategy, solution design, stakeholder engagement, and project execution for complex energy infrastructure initiatives worldwide. His team delivered cutting-edge solutions across battery and long-duration energy storage (LDES), microgrids, micronuclear reactors, EV charging infrastructure, thermal energy networks, electrification, and grid modernization.
Earlier in his career, Tristan held executive and technical leadership roles at major U.S. defense technology companies, including CACI (USD 8 billion annual revenues) and Lockheed Martin (USD 60 billion annual revenues), where he contributed to business development, engineering management, and strategic growth.
Tristan holds a Master of Science in Computer Science from Johns Hopkins University’s Whiting School of Engineering and a Bachelor of Science in Computer Science from the University of California, Santa Barbara. He is also a graduate of Lockheed Martin’s Engineering Leadership Development Program. He resides in the Washington, D.C. area.