pHydrogen
Advancing Electrolyzers with Earth-Abundant Resources
Tokyo, Japan · Founded 2025 · $2.0M raised
- Headquarters
- Tokyo
- Founded
- 2025
- Business Model
- B2B
- Website
- phydrogen.co.jp
- Total Funding
- $2.0M
- Last Round
- $2.0M SeedJun 2025
- Rounds
- 1
Totals include recorded grants and other qualifying funding, not just equity. What counts toward funding.
Indexed holds 1 funding round and 2 investors for this company. The full record is or through the API.
About
pHydrogen is a University of Tokyo spin-off developing seawater electrolysis systems that use earth-abundant metals such as iron instead of scarce catalysts, aiming to sharply cut the production cost and capital investment of green hydrogen. Its core innovation is a proprietary near-neutral-pH electrolyte that lets cheap metals work in seawater while matching the performance of conventional alkaline electrolyzers. Founded in 2025 in Tokyo by CEO Takahiro Tobita and CTO Kazuhiro Takanabe (a University of Tokyo professor), the company raised a ¥300 million (~$2M) seed round from Incubate Fund in June 2025 to scale up its electrolysis system and pursue business partnerships.
Summary
pHydrogen is an Energy company based in Tokyo, Japan, founded in 2025. It has raised $2.0M in total across 1 round, most recently a $2.0M Seed round in Jun 2025. Investors include Incubate Fund and 500 Global.
Tech & App Stack
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Funding History
Jun 2025
Investors
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