Ohmium Email Format
Renewable Energy Semiconductor ManufacturingCalifornia, United States501-1000 Employees
Ohmium designs, manufactures and deploys modular proton exchange membrane electrolyzer systems to enable affordable green hydrogen production for hard-to-abate sectors. Its systems are vertically stackable and integrate power electronics, delivering safety, energy density, scalability and rapid ramping for a range of commercial and industrial applications. The electrolyzers are compact, efficient to manufacture, easy to transport and straightforward to maintain, supporting plug-and-play operation that can scale quickly. Based in Fremont, California, Ohmium operates in the renewable energy semiconductor manufacturing space and maintains a global pipeline of green hydrogen projects across the Americas, Europe, India and the Middle East. In June 2026, Ohmium announced a partnership with Hynfra to pursue green hydrogen and ammonia initiatives.