Castelion Raises $1B Series C at $13B Valuation for Hypersonic Weapons

Castelion, founded in 2022 by former SpaceX executives, closed a $1 billion Series C at a $13 billion valuation, co-led by Andreessen Horowitz, Carlyle, and JP Morgan Chase. The Torrance-based company builds hypersonic weapon systems — missiles traveling above Mach 5 — and has secured over $500 million in U.S. military contracts. The capital will scale production of its Blackbeard missile at its New Mexico facility.