SpaceX Alumni’s Castelion Raises $1 Billion at $13 Billion Valuation to Mass-Produce Hypersonic Missiles
Castelion announced more than $1 billion in financing at a $13 billion valuation to scale advanced defense manufacturing.
Why it matters: Defense technology is becoming a major venture category as governments seek faster, cheaper paths to advanced weapons production.
Defense-technology startup Castelion announced financing consisting of $800 million in equity plus a $250 million revolving credit facility at a $13 billion valuation. The company plans to accelerate production of its Blackbeard hypersonic missile and develop longer-range strike and air-defense systems. Founded by former SpaceX personnel, Castelion is applying rapid iteration and vertically integrated manufacturing methods to defense hardware.