John F. Plumb serves as Head of Strategy at K2 Space, where he focuses on advancing next-generation satellite capabilities designed to deliver greater scale, resilience, and affordability to national security space missions.Plumb previously served as the Assistant Secretary of Defense for Space Policy, where he was responsible for overseeing U.S. Department of Defense space strategy, policy, and international engagement. In that role, he helped shape national security space priorities during a period of rapid evolution in the space domain, including strengthening allied cooperation, advancing responsible space behavior, and guiding policy for resilient space architectures in an increasingly contested environment.Before his Pentagon leadership, Plumb held senior policy roles on Capitol Hill and within the executive branch, including serving on the National Security Council staff and as a professional staff member on the Senate Armed Services Committee. Across government and industry, his career has centered on aligning strategy, technology, and policy to ensure the United States maintains a competitive edge in space.At K2 Space, Plumb brings that strategic depth to the commercial sector — helping bridge national security requirements with innovative satellite manufacturing approaches built for scale.