Inertia Enterprises

Inertia Enterprises is a San Francisco-based fusion energy startup focused on laser inertial confinement fusion (ICF) - the same approach to nuclear fusion pioneered at the National Ignition Facility (NIF) at Lawrence Livermore National Laboratory, which achieved a historic ignition milestone in December 2022. The company is working to commercialize this technology by developing the equipment and systems needed to deliver repeatable, high-yield fusion ignition at scale, with the goal of producing clean, virtually limitless energy.

The company was founded by Annie Kritcher, a prominent plasma physicist who served as chief scientist at NIF and played a central role in designing the target capsule that achieved fusion ignition. Her deep expertise in ICF target physics, laser drive optimization, and ignition science positions Inertia Enterprises at the cutting edge of efforts to translate laboratory fusion breakthroughs into a viable commercial energy technology. The company falls within the equipment manufacturing layer of the energy supply chain, likely developing high-precision laser systems, fusion targets, and related enabling hardware.

Inertia Enterprises represents a significant bet on laser-driven ICF as a path to commercial fusion power, at a time when the US government and private sector are both investing heavily in fusion as a long-term pillar of domestic clean energy supply. With a reported $450 million Series A raise, it is one of the most generously funded early-stage fusion startups in the world, signaling strong investor conviction that ICF - once considered too complex for commercialization - may now be within reach thanks to the NIF ignition result and advances in laser and target fabrication technology.