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Castelion

American Dynamism Aerospace Government Manufacturing Military National Security

Torrance, California, United StatesFounded 2022144+ employeesPrivate

$469.6M raisedGrowth· last: series b (Dec 2025)· 5 rounds

Backed by(20 investors)

Andreessen Horowitz · Lead Lightspeed Venture Partners · Lead Altimeter Capital · LeadLavrock Ventures · LeadSilicon Valley Bank · Lead+10 more

Forging the future of hypersonic strike weapons through Modern Defense Production

Founders

Co-Founder & CEO

Co-Founder & COO

Co-Founder & CFO

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