Hypersonic missile startup Castelion raises $1 billion

Castelion raises $1 billion Series C for hypersonic missiles

Castelion raises $1 billion Series C (valuation $13B) to ramp Blackbeard hypersonic missile production, with $500M+ government contracts and Navy as primary customer. Signals capital reallocation toward deep tech and critical infrastructure; governments fund domestic supply chains with venture-backed aerospace talent.