Hydrogen Investors in Western Europe: A Founder's Guide
Western Europe is the heartland of the hydrogen economy. Here are 15 Series A/B investors backing electrolysis, fuel-cell, ammonia, and e-fuels founders, from pure-play hydrogen funds Hy24 and AP Ventures to deep-tech climate VCs Extantia and World Fund.
Western Europe is the global heartland of the hydrogen economy, with the densest concentration of electrolyser makers, fuel-cell companies, ammonia and e-fuels developers, and dedicated hydrogen capital anywhere. Strong policy support, industrial decarbonisation mandates, and a deep deep-tech venture base have produced a specialist investor ecosystem unmatched elsewhere. The firms below lead or co-lead Series A/B rounds across the hydrogen value chain. Each profile carries a short type tag, then covers mandate, stage and cheque focus, and hydrogen activity.
1. Hy24
Type: Hydrogen PE / specialist – growth and equipment (pure-play)
Hy24 is the world's first and largest dedicated low-carbon hydrogen investment manager, spanning a flagship infrastructure fund and a Clean Hydrogen Equipment Fund. The mandate covers growth-stage equipment makers and large hydrogen infrastructure, co-leading rounds such as separation-technology company H2SITE's Series B. For hydrogen founders scaling equipment or projects, Hy24 is the definitive specialist capital partner in the region.
2. AP Ventures
Type: VC – leads Series A/B (hydrogen specialist)
AP Ventures is one of the most specialised hydrogen and fuel-cell investors globally, focused squarely on the hydrogen value chain and its supporting materials. The mandate spans early to growth stages with deep domain expertise, and it has led fuel-cell and electrolyser rounds across Europe, including companies like EH Group. Its specialist lens and industrial network make it a default partner for hydrogen founders.
3. Extantia Capital
Type: VC – leads seed/Series A (deep tech)
Berlin-based Extantia Capital is a deep-decarbonisation specialist backing "Gigacorn" founders, with hydrogen and e-fuels a recurring theme. The mandate covers software and hardware from seed to Series A, with initial cheques typically in the €1-5m range and follow-on capacity, and its portfolio includes hydrogen and e-fuels companies such as H2Pro, Vema Hydrogen, and Ineratec. Its comfort with hard science makes it well suited to hydrogen-technology founders.
4. World Fund
Type: VC – leads Series A/B
World Fund is one of Europe's largest dedicated climate-tech VCs, built around a high-impact thesis screening for large CO2e savings, with hydrogen and derivatives within scope. The mandate spans seed through Series A/B with the scale to lead sizeable rounds and the technical depth to back hardware, including hydrogen-linked companies such as Vema Hydrogen. It is a natural anchor investor for European hydrogen founders.
5. SC Net Zero Ventures (Suma Capital)
Type: VC – leads Series A/B (industrial decarbonisation)
SC Net Zero Ventures, managed by Spain's Suma Capital, is a climate-tech VC focused on industrial and mobility decarbonisation, including hydrogen. The mandate centres on Series A/B in companies cutting industrial emissions, and it co-led hydrogen separation company H2SITE's Series B. For hydrogen founders, it offers a focused industrial-decarbonisation lens and strong Iberian and European reach.
6. Demeter
Type: VC + growth/infra – seed to growth (energy specialist)
Demeter is one of Europe's longest-running energy-transition investors, managing over €1.3bn across venture, growth, and infrastructure, with hydrogen and clean fuels a recurring theme. The mandate spans the full lifecycle from early-stage technology to growth and infrastructure, with cheques from €1m to €30m. For hydrogen founders, Demeter can support a company from Series A through scale-up and project build-out.
7. Hydrogen-specialist arm of Eurazeo
Type: VC + growth/PE – Series A to growth
Eurazeo is a major French investment firm spanning venture, growth, and private equity, with an active energy-transition practice that includes hydrogen and clean fuels. The mandate runs from Series A through growth, with the capacity to write large cheques and follow on substantially. For hydrogen founders who need a well-capitalised lead able to support capital-intensive scaling, Eurazeo offers scale and a broad European platform.
8. Enagás Emprende
Type: CVC / strategic – co-invests Series A/B (gas & hydrogen)
Enagás Emprende is the corporate venture arm of Spanish gas-infrastructure operator Enagás, investing in hydrogen, biomethane, and energy-transition technologies. The mandate is strategic venture across early and growth stages, offering portfolio companies access to gas-infrastructure expertise and deployment, and it backed hydrogen separation company H2SITE. For hydrogen founders, it is a strong strategic co-investor with infrastructure reach.
9. Hydrogenious / HydrogenOne-linked capital (HydrogenOne Capital)
Type: Hydrogen specialist fund – growth
HydrogenOne Capital is a dedicated clean-hydrogen investment manager backing companies across the hydrogen value chain, from production to storage and transport. The mandate centres on growth-stage hydrogen businesses with clear commercial pathways, and its portfolio spans European and global hydrogen specialists. For hydrogen founders approaching growth stage, it is a focused specialist source of capital.
10. Planet A Ventures
Type: VC – leads seed/Series A
Planet A Ventures is a Berlin early-stage climate fund distinguished by an in-house science team that runs life-cycle assessments and holds veto power, with hydrogen and e-fuels within its thesis. The mandate is seed and early Series A across climate mitigation and energy. For hydrogen founders, the science-led diligence is demanding but lends strong credibility to those it backs.
11. Contrarian Ventures
Type: VC – leads seed/Series A (energy specialist)
Contrarian Ventures is an energy-transition VC active across Europe and Israel, deploying €1-4m tickets and leading or co-leading early rounds in high-decarbonisation companies, including hydrogen. The mandate centres on seed and early Series A across clean energy and the molecules, with a hands-on, founders-first model. Its sector focus makes it one of the most relevant specialist early leads in Europe.
12. Climentum Capital
Type: VC – leads Series A (climate hardware)
Climentum Capital is a Copenhagen, Berlin, and Stockholm-based climate VC investing in European hardware and deep-tech ventures that cut CO2 at scale, with initial cheques of €1-5m, including hydrogen and clean-fuels companies. The mandate centres on seed and Series A across energy and industry, taking lead and follow-on roles. Its hardware focus makes it well placed to back hydrogen-technology founders.
13. AENU
Type: VC – leads seed/Series A (climate)
AENU is a Berlin-based climate-and-impact VC backing companies tackling the climate crisis, including hydrogen and energy. The mandate centres on seed and Series A with conviction-led, multi-stage support and an evergreen-style structure. For hydrogen founders, AENU offers a climate-native early lead with the capacity to keep backing winners.
14. Future Energy Ventures
Type: VC + corporate LPs – leads Series A/B
Future Energy Ventures is a venture and collaboration platform connecting corporate energy partners with startups shaping the future energy system, including hydrogen and clean fuels. The mandate focuses on early-to-growth digital and asset-light energy companies, with corporate LPs that can become commercial partners. It suits hydrogen founders whose edge is in software, integration, and asset-light models.
15. Equinor Ventures
Type: CVC / strategic – co-invests Series A/B (energy)
Equinor's venture arm is the investment vehicle of the Norwegian energy company, with a strong hydrogen and clean-fuels interest reflecting its parent's energy-transition strategy. The mandate is strategic minority investments across early and growth stages, and it backed hydrogen separation company H2SITE. For hydrogen founders, Equinor offers strategic capital plus access to energy-industry scale and project expertise.
