Hypersonic weapons startup Castelion has secured $350 million in a Series B funding round led by Lightspeed Venture Partners and Altimeter Capital, according to sources and documents reviewed. The ...

A hypersonics weapon startup is lining up a massive new funding round to scale its business with the U.S Department of ...

Interestingly, the amount of money the Army has promised to the Castelion Corporation is far less than what the other ...

The Pima County Fairgrounds are best known for barrel racing, spinning carnival rides and International Hot Rod Association ...

The U.S. Army is accelerating the development of a new, lower-cost hypersonic missile system called “Blackbeard,” developed by defense startup Castelion, which was founded by former SpaceX employees.

When Jakob Diepenbrock started Discipulus Ventures, a hard-tech startup accelerator in El Segundo, he set out to identify a ...

Arizona officials, including Sen. Mark Kelly, urge hypersonic missile startup Castelion to consider Tucson for expansion, highlighting Arizona's aerospace and defense ecosystem.

Now Senator Mark Kelly has written a letter to a California company called Castelion to convince it Tucson would be ideal to expand Castelion’s work creating hypersonic missiles. That’s likely ...

Castelion's founders are former SPACE-X employees. In January, the Wall Street Journal reported Castelion raised $100 million dollars in seed money to build hypersonic missile systems.

Based in El Segundo, Castelion was founded in 2023 by three former SpaceX employees. The company’s website says it is focused on “the rapid development and mass manufacturing of complex ...

Emma Green on the influential venture capitalist Katherine Boyle , who believes that creating things for America—from weapons to rockets to nuclear-energy plants—is pro-family.