Former SpaceX engineers' Castelion Raises $1 billion Series C
Former SpaceX engineers' Castelion raises $1B at $13B valuation to mass-produce hypersonic weapons.
Series C$1 billionTotal tracked $1 billionUndisclosed HQ
What it does
Former SpaceX engineers' Castelion raises $1B at $13B valuation to mass-produce hypersonic weapons.
Traction
undisclosed investors participated in the latest tracked round; deeper traction analysis is held until source support is strong enough.
Trend impact
MD-grade thesis held: available source material is not specific enough to support a non-generic investor-economist read without overclaiming.
Funding history
- August 21, 2026 · Series C · $1 billion · undisclosed investors