EX-Fusion is building a commercial laser nuclear fusion energy platform aimed at delivering carbon-free, domestically producible power. The company is integrating optical control, continuous target supply, and high-output laser technologies to create a reactor capable of sustaining ten fusion reactions per second, with a milestone of one hour of continuous neutron generation targeted for fiscal 2027. Its technology stack is expected to extend beyond energy into laser processing, medical, and space applications, leveraging the same high-precision photonics capabilities. EX-Fusion is strengthening collaborations with national research institutes, universities, and large corporations to build an ecosystem for social deployment of its fusion solutions. The firm began pursuing laser fusion in 2021 and has raised ¥3 billion in Series A funding to date, contributing to a total of ¥6 billion since inception. No revenue or customer metrics have been disclosed, underscoring the company’s early R&D stage.

Total raised

$16M

Funding rounds

3

Latest round

Series A

Latest activity

Oct 2025