About us: EX-Fusion is a laser fusion energy company developing a gigawatt-scale power plant based on high-repetition-rate direct-drive fast ignition. Spun out of Osaka University, the team includes pioneers of the Fast Ignition Realization Experiment (FIREX) and holds world-leading records in fast ignition physics. In 2024, EX-Fusion became the first company to demonstrate continuous 10 Hz target engagement, a key engineering milestone toward commercial inertial fusion energy. Founded in 2019 as Japan’s first private fusion company, EX-Fusion has raised over $70M in private capital and benefits from strong public–private support in both Japan and the U.S.