Castelion
This company is in the pipeline of America 2030, IPO CLUB’s $50M, actively managed secondary fund focused on U.S. defense, energy, security, and AI.
Updated in January 2026
Headquarter: El Segundo, California, USA
Year Founded: 2022
Leadership: Christian Johnson
Industry Sectors: Defense technology; Hypersonic weapons; Missile systems; National security
Funding Round: ~$100M Series A (2023)
Valuation: n/a
Is Castelion A Public Company? No, it is currently private
What Is Castelion?
Castelion is a U.S.-based defense technology company founded in 2022 by former SpaceX engineers, including Sean Pitt and Andrew Kreitz, and headquartered in El Segundo, California. The company was created to address the growing need for mass-producible, low-cost, long-range precision weapons, particularly as global security dynamics shift toward peer and near-peer competition. Castelion’s mission is to modernize defense manufacturing by applying commercial aerospace production principles to advanced strike systems.
Technology & Products
Castelion focuses on the development of hypersonic and long-range strike weapons, emphasizing designs that are manufacturable at scale rather than bespoke, low-volume systems. The company leverages vertically integrated engineering, rapid iteration, and modern supply chain practices to reduce cost and production timelines. While detailed technical specifications are not fully public, Castelion has stated that its systems are designed to deliver high-speed, survivable, and precise strike capability, aligning with U.S. Department of Defense priorities around distributed, resilient deterrence.
Market Opportunity
Castelion operates in the expanding advanced weapons and long-range fires market, driven by increased defense spending and heightened focus on hypersonic capabilities among major military powers. U.S. and allied defense agencies are actively seeking alternatives to traditional defense procurement models, favoring systems that can be produced quickly and in meaningful quantities. Castelion targets government defense customers, positioning itself to benefit from long-term investments in strategic deterrence, missile modernization, and industrial base resilience.
Competitive Landscape
Castelion competes with traditional defense primes and other venture-backed defense startups developing hypersonic and long-range weapons systems. Its primary differentiation lies in its manufacturing-first philosophy, prioritizing cost, scalability, and production speed over highly customized designs. While incumbents bring deep program experience and established contracts, Castelion positions itself as a new-generation defense supplier, aiming to complement or disrupt legacy approaches by delivering advanced capabilities at significantly lower unit cost and higher volumes.
How To Buy Castelion Stock?
Castelion is currently a private company and is not publicly traded on major stock exchanges like the NASDAQ or NYSE. This means you can buy shares through a pre-IPO platform or brokerage like IPO CLUB.
Castelion and America 2030 Latest News
This company is in the pipeline of America 2030, IPO CLUB’s $50M, actively managed secondary fund focused on U.S. defense, energy, security, and AI.
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