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Stargate Hydrogen supplies electrolyser stacks and systems for producing green hydrogen.
Established in 2021 and based in Tallinn, Estonia, Stargate Hydrogen develops electrolyser stacks and systems for green hydrogen production. Its Gateway family uses ceramic electrodes and combines electrolysers with dedicated stacks. In July 2025, the company raised an undisclosed amount of venture funding from Repsol Corporate Venturing.
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