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Idemitsu

Venture Capital

Idemitsu is a Venture Capital firm based in Basel.

Corporate venture capital arm of Idemitsu Kosan, a Japanese energy company, backing startups in low-carbon energy and advanced materials.

Early Stage
Growth
Late Stage
Climate Tech
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Headquarters
Basel
Website
idemitsu.ch
Portfolio Companies
3
Total Investments
3
Last Investment
Jul 2026
Geographic Focus
Global
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Indexed holds 3 portfolio companies and 3 funding rounds for this investor. The full record is or through the API.

Investment Thesis

Invests in Series A and later-stage startups developing clean hydrogen/ammonia, next-generation fuels, biomass, and advanced materials that support a carbon-neutral, circular society.

It has made 3 investments. Its portfolio includes Maxwell + Spark, Quaise Energy and Vycarb. Focus areas include Climate Tech.

Portfolio3

Co-investors13

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13 co-investors across 13 shared portfolio companies — who they back alongside, and how often they lead.

Venture Capital ×12 · Accelerator ×1 · 11 shared rounds

Investment History

Data from Indexed.vcUpdated

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Idemitsu on Indexed.vc
<a href="https://indexed.vc/investors/idemitsu"><img src="https://indexed.vc/api/badge/investor/idemitsu" alt="Idemitsu on Indexed.vc" width="260" height="76" /></a>