Research & Development

US Fusion Company Inertia Raises $450 Million To Build ‘World’s Most Powerful Laser’

By Nigel Davies
16 February 2026

California-based startup backed by Google Ventures and venture capital firms

US Fusion Company Inertia Raises $450 Million To Build ‘World’s Most Powerful Laser’
Inertia founders (L-R): Prof Mike Dunne, Jeff Lawson, Dr Annie Kritcher. Courtesy Inertia/GlobeNewswire Inc.
California-based fusion energy startup Inertia Enterprises has raised $450m (€379m) in funding to build a fusion pilot plant backed by investment from venture capital company Bessemer and firms including Google Ventures.

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