COMPANY INFO
Castelion Corporation, founded in 2022 by Bryon Hargis, Sean Pitt, and Andrew Kreitz, is a private aerospace and defense company headquartered in El Segundo, California. With about 50 employees, Castelion specializes in modern defense production, focusing on rapid iteration and scalable manufacturing to develop affordable, high-performance hypersonic strike systems that strengthen national security and outpace evolving threats. Their website is https://www.castelion.com.
Castelion Corporation is a private aerospace and defense company specializing in rapid development, scalable manufacturing, and deployment of hypersonic strike systems. Founded in 2022 and headquartered in El Segundo, California, Castelion's mission is to strengthen national security with affordable, high-performance solutions that outpace evolving threats.
The Castelion Corporation executive team brings together proven leaders with deep expertise in aerospace, defense, manufacturing, and technology innovation. With significant experience from industry-leading organizations such as SpaceX and major defense contractors, the Castelion leadership team drives operational excellence while rapidly expanding the company’s high-impact product portfolio. Their blend of commercial acumen, technical mastery, and government contracting expertise positions Castelion for strong growth in modern defense production.
Bryon Hargis is the Co-Founder and CEO of Castelion Corporation, where he leads the company’s strategic vision and spearheads efforts to restore America’s rapid weapons fielding capabilities. Bryon Hargis's work has focused on building Castelion into a vertically integrated, fast-moving defense production company, drawing on his track record developing multi-billion-dollar sales pipelines and delivering advanced systems on time. His experience at SpaceX, where he led business development and product definition for National Security satellite programs, is central to Castelion’s approach of rapid iteration and scalability—a hallmark of the company's management team.
Bryon holds a M.S. in Applied Physics from The Johns Hopkins University and a B.S. in Mechanical Engineering from Georgia Tech. Before founding Castelion, he worked in senior leadership positions at SpaceX, overseeing sales, business development, and early product definition for major satellite and defense programs, which shaped his expertise in large-scale aerospace leadership and operations.
Sean Pitt is the Co-Founder and COO of Castelion, managing operational leadership and scaling the company’s manufacturing footprint. Sean Pitt’s leadership in executing over $1.25 billion in export deals for SpaceX’s European commercial launch and human spaceflight sales underlies Castelion’s commercial and strategic capabilities. At Castelion, he oversees internal operations, manufacturing expansion, and test capabilities development, contributing to the growth and agility of the Castelion management team.
Sean earned a Bachelor of Arts from the University of Michigan. His prior roles at SpaceX included managing commercial and human spaceflight sales across Europe, where he built significant international partnerships and proved his expertise in high-stakes commercial aerospace negotiation.
Andrew Kreitz is the Co-Founder and CFO of Castelion Corporation, where he manages financial strategy, capital raises, forecasting, and classified program cost proposals. Andrew Kreitz’s financial management has been critical to supporting Castelion's rapid scaling, including overseeing the company’s fundraising strategy and financial planning as Castelion enters new markets and develops complex, high-value defense systems.
Andrew previously managed launch forecasting and government cost proposal processes at SpaceX. Before joining the Castelion leadership team, he was a Vice President in Goldman Sachs’ investment banking division, leading $10+ billion in acquisitions and mergers for the aerospace and defense sector.
Jacob Sweers leads vehicle engineering at Castelion, leveraging his comprehensive experience in developing both weapon systems and advanced spacecraft. At Castelion, Jacob Sweers is responsible for the rapid development of strike platforms and has applied his technical leadership by developing Earth Observation, Communications, and Hosted Payload projects, notably for SpaceX’s Starshield program.
Jacob began his career integrating sensing and weapon systems into rotorcraft for the 160th Airborne. He then spent a decade at SpaceX, contributing to advanced spacecraft and system engineering—an experience that is key to Castelion’s technical excellence.
Paul Perry is the mechanical engineering lead at Castelion, where he manages the design and structural analysis teams responsible for critical NASA and classified satellite programs. Paul Perry’s leadership extends through projects in high-performance consumer electronics and the development of autonomous drone delivery systems, driving innovation and reliability in complex engineering projects.
Paul has a robust mechanical design background, with extensive experience in leading engineering teams for major space and high-tech hardware initiatives. His project management and structural expertise greatly enhance the Castelion management team’s capability portfolio.
David Ferguson, known as ‘Ferg,’ heads avionics engineering at Castelion, drawing on his history as the principal designer of Crew Dragon’s Flight Computer and responsible engineer for Falcon 9, Dragon, and Starlink avionics systems at SpaceX. David Ferguson’s avionics work underpins the reliability and advanced capabilities of Castelion’s hypersonic systems, uniting safety with cutting-edge technology.
With 12 years of avionics leadership at SpaceX, Ferguson has helped design and implement flight computers for the world’s most advanced launch and spacecraft systems. His deep engineering capabilities make him an invaluable part of the Castelion executive team.
Bobby Panerio leads manufacturing at Castelion, applying his 12-year experience managing large manufacturing teams at SpaceX, where he oversaw production processes for critical components on Falcon 9 and Dragon spacecraft. Bobby Panerio’s operational focus at Castelion ensures that the company’s manufacturing is robust, efficient, and scalable as the business grows.
Bobby’s expertise in aerospace manufacturing leadership and operations ensures rigor and discipline in Castelion’s production processes, contributing to the company’s rapid scalability and commitment to quality.
Tegan Counts leads seeker development at Castelion, bringing 15 years of advanced missile seeker design expertise from roles at Raytheon and L3Harris. At Castelion, Tegan Counts has developed and architected multiple new seeker designs and previously led radar development efforts for an autonomous vehicle startup, advancing the company’s edge in high-performance targeting and navigation systems.
Tegan’s deep knowledge of missile seeker technology and radar innovation, gained through defense and commercial technology positions, reinforces the specialized strengths of Castelion’s management team.
The Castelion Corporation leadership team combines formidable experience in aerospace engineering, defense contracting, large-scale manufacturing, and high-growth finance. With its founders and executives drawn from industry-leading companies like SpaceX, Goldman Sachs, Raytheon, and L3Harris, the Castelion executives focus relentlessly on fielding advanced hypersonic strike systems with speed, efficiency, and innovation. The blend of commercial discipline, technical depth, and agile decision-making permeates the company’s structure and culture—fueling Castelion’s rapid growth and its reputation as a modern defense technology leader.
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