Ohmium
Updated: February 23, 2026
Founders: Arne Ballantine, Kirsten Burpee
Country: USA | Funding: $297M (+)
Founded: 2019
Website: https://ohmium.com
Ohmium designs, manufactures and installs reliable and cost-effective proton-exchange membrane electrolyzers for producing high-purity hydrogen under pressure. These energy plants use water and renewable energy to produce clean hydrogen and are easily scalable from megawatts to gigawatts thanks to their modular design. The electrolyzer uses tap water from an on-site source, purified through filtration, reverse osmosis and ion exchange for deionization, making it suitable for electrolysis. The company's cloud software ensures continuous global remote monitoring and maintenance of the system.
Founded: 2019
Website: https://ohmium.com
Ohmium designs, manufactures and installs reliable and cost-effective proton-exchange membrane electrolyzers for producing high-purity hydrogen under pressure. These energy plants use water and renewable energy to produce clean hydrogen and are easily scalable from megawatts to gigawatts thanks to their modular design. The electrolyzer uses tap water from an on-site source, purified through filtration, reverse osmosis and ion exchange for deionization, making it suitable for electrolysis. The company's cloud software ensures continuous global remote monitoring and maintenance of the system.
