Helion Raises $465M to Build the World's First Commercial Fusion Power Plant for Microsoft Helion Energy, the Sam Altman-backed fusion startup, announced Thursday it has secured $465 million in a new Series G funding round, valuing the company at $15.5 billion. The round was led by Thrive C... Clean Tech Energy Infrastructure Fusion Energy Microsoft Startup Funding Jun 4, 2026
Fusion Startup Inertia Signs LLNL Deals to Commercialize National Ignition Facility Breakthroughs Fusion startup Inertia has signed three agreements with Lawrence Livermore National Laboratory (LLNL), a move aimed at commercializing technology related to the National Ignition Facility (NIF). Repor... Climate Tech Deep Tech Fusion Energy LLNL Startups Apr 14, 2026