Castelion's Series A funding round raised $100 million, led by Lightspeed Venture Partners and including several other firms.

SoftBank is negotiating a $500 million investment in Skild AI, a software company building a foundational model for robotics ...

The reduction in noisy, unstructured telemetry data by Observo can cut enterprise observability costs by up to 50%.

ORLANDO, Fla. — A California-based startup led by former SpaceX executives announced Jan. 29 it has raised $100 million to ...

Seattle-area company Helion Energy gets $425 million from investors including Sam Altman and Softbank to pursue clean ...

Silicon Valley’s enthusiasm for superfast weapons has picked up speed, with defense-tech startup Castelion raising $100 ...

In the quiet days before Christmas last year, when most venture capitalists had retreated to holiday escapes in Aspen or ...

Helion's unorthodox approach to fusion power and relative secrecy has earned it plenty of fans — and critics. But don’t count ...

Helion, a startup working to generate electricity from nuclear fusion, on Tuesday said it has raised $425 million in venture ...

Observo AI, an artificial intelligence-powered data pipeline company that helps companies solve observability and security ...

Daniel Ek’s Neko Health raised $260 million in a round led by Lightspeed as the startup eyes expansion into the U.S.