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Advanced / Transformational Technology

Hypersonic Weapon Startup Castelion Raises $100 Million In Capital

By Cal Biesecker

Wednesday, January 29th, 2025

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Hypersonic Weapon Startup Castelion Raises $100 Million In Capital

Image: Castelion

Castelion, a two-year-old startup focused on rapidly developing and mass-producing hypersonic weapons, has raised $100 million in new capital to increase its workforce and production capabilities, and speed testing of its first low-cost weapon toward a capability demonstration, the California-based company said on Wednesday. The capital raise includes a $70 million Series A funding round led by Lightspeed Venture Partners and $30 million in venture debt financed by Silicon Valley Bank. The close is expected in February. Also participating in…

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