Castelion hits $13B valuation to mass-produce hypersonic missiles |

In Brief Posted: 12:01 PM PDT · August 20, 2026 Castelion, a missile startup founded by former SpaceX executives, has raised a $1 billion Series…

Hermeus raises $350M to build unmanned hypersonic fighters |

Defense startup Hermeus has raised $350 million to keep developing what it calls the “fastest unmanned aircraft,” in a funding round that has pushed its…