Castelion
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Investors
Founders
About
Castelion is a Torrance, California-based defense technology company building low-cost, mass-producible hypersonic strike weapons, with manufacturing operations in New Mexico, Texas and California and offices in Washington, D.C. 1. The Series C financing will accelerate scaled production of Blackbeard, Castelion’s first hypersonic strike missile, and expand the company’s portfolio to longer-range strike weapons and defensive systems, targeting initial fielding in 2027 12.
Funding History
| Date | Round | Amount | Lead | Co-investors |
|---|---|---|---|---|
| 2026-08-19 | Series C | $800M equity (plus $250M revolving credit) | J.P. Morgan Chase Strategic Investment Group, Andreessen Horowitz, Carlyle | Lightspeed Venture Partners, Lavrock Ventures, Altimeter, General Catalyst, Interlagos, T. Rowe Price Associates 123 |
What Investors Say
No independently sourced investor quotes available at this time.
What Founders Say
No independently sourced founder quotes available at this time.
Sources
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Carlyle press release, “Castelion Raises $1 Billion Series C to Scale Production of Low-Cost Hypersonic Weapons,” August 19, 2026. Accessed August 2026. https://www.carlyle.com/media-room/news-release-archive/castelion-raises-1-billion-series-c-scale-production-low-cost↩↩↩↩
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SpaceNews, “Hypersonic missile startup Castelion raises $1 billion,” August 20, 2026. Accessed August 2026. https://spacenews.com/hypersonic-missile-startup-castelion-raises-1-billion/↩↩↩
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Axios, “Startup missile maker Castelion valued at $13 billion,” August 20, 2026. Accessed August 2026. https://www.axios.com/2026/08/20/hypersonic-missile-castelion↩↩