Inertia Enterprises Raises $450M in Series A Funding

Milestone-based financing will develop the Thunderwall laser and a fuel-target production line as the company works toward commercial electricity generation.

Round size
$450M
Stage
Series A
Headquarters
United States
Announced
Feb 11, 2026

From ignition experiments to a power plant

Inertia builds on inertial-confinement fusion demonstrated at Lawrence Livermore’s National Ignition Facility. Its team includes Annie Kritcher, who designed the ignition experiments, alongside laser expert Mike Dunne and former Twilio CEO Jeff Lawson.

Developing the industrial systems

The program pairs a repeatedly firing laser with mass-manufactured targets and a system that feeds them into the reaction chamber. These are the technology and supply-chain steps required for the company’s planned grid-scale plant.

Sources

  1. Inertia Enterprises: funding announcement
  2. Crunchbase News: February Series A
  3. TechCrunch: Inertia funding
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