Energy startup ecosystem
We track 111 organisations in this sector across 6+ countries.
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Frumtak Ventures
Frumtak Ventures is Iceland's oldest active venture capital firm, founded in 2008 with a mandate to back local innovation with global potential. The firm takes a concentrated, high-conviction approach from seed through later growth stages, partnering closely with founders across AI, healthcare, logistics, energy, climate, and ocean-tech. Its fourth fund, closed in July 2024 at $87 million and oversubscribed, is primarily backed by Icelandic pension funds. The portfolio of 34 companies includes notable companies such as Controlant (pharma cold-chain) and Sidekick Health (digital therapeutics).
Fuse Energy
Full-stack renewable energy supplier founded in 2022 by former Revolut executives, supplying 300,000+ UK households while building a 1 GW wind and solar generation pipeline. Secured a €25M Series B extension, bringing total funding to €214M.
Future of Utilities: Energy Transition Summit 2026
Senior-level utility summit focused on net-zero transition. Price: about EUR 1800-2500. Great for grid tech, smart metering, and energy analytics startups.
Future of Utilities: Energy Transition Summit 2027
Future of Utilities: Energy Transition Summit 2027 runs 21-22 April in Amsterdam, organised by Marketforce. Billed as Europe's most significant energy conference with 1,600 attendees, the summit targets decision-makers accelerating Europe's transition to a renewable energy ecosystem, covering international cooperation, policy and regulation, and breakthrough energy technologies.
GLOBSEC Tatra Summit 2026
Central European geopolitics-meets-technology summit in Bratislava organized by GLOBSEC, covering cybersecurity, digital sovereignty, energy transition, and CEE innovation policy. Draws diplomats, defense-tech founders, and security-policy researchers. By invitation and application.
Grow by Jose de Mello
Launched 2017. Corporate venture program connecting startups with the Jose de Mello Group in healthcare, energy, and infrastructure. Support: pilot agreements, corporate guidance, and potential customer contracts. Scope: National.
Helima Croft
Helima Croft is Managing Director and Global Head of Commodity Strategy at RBC Capital Markets, where she leads analysis of global energy markets, geopolitical risk, and commodity pricing for one of the world's leading investment banks. A former CIA energy analyst, she is widely regarded as one of the most cited experts on oil market dynamics and energy geopolitics, regularly advising governments and major financial institutions. She is a confirmed speaker at the ONS 2026 Strategic Conference in Stavanger.
HighTechXL
Deep-tech venture builder at High Tech Campus Eindhoven (est. 2015). Runs a 9-month venture-building program turning advanced tech from CERN, ESA, and others into startups; exits include Accerion. Support: co-founding teams, seed funding, R&D ecosystem access. Scope: International.
Hometree
Hometree is a London-based home cover and energy services provider offering boiler and home emergency cover, plumbing and drains cover, appliance cover, and landlord plans across mainland England, Scotland and Wales, alongside renewable energy installations including heat pumps and solar panels. The company promises no unfair price hikes at renewal and offers 24/7 claims support with a UK-based call centre. It operates as a trading name of Hometree Services Limited and Hometree Marketplace Limited, both regulated by the UK Financial Conduct Authority.
Hydrogen Valley Estonia
Hydrogen Valley Estonia, coordinated by the Estonian Association of Hydrogen Technologies, brings together industry, research institutions and the public sector to develop the country's hydrogen economy. It organises Tartu Hydrogen Days, an international conference accelerating clean hydrogen technologies across Estonia, the Baltics and the Nordics.
Hystar
Hystar is an Oslo-based green hydrogen company founded in 2020 as a spin-off from SINTEF. The company manufactures PEM (proton exchange membrane) electrolysers with membranes 90% thinner than conventional alternatives, significantly cutting electricity consumption and the levelised cost of green hydrogen. Hystar raised $36 million in a Series C round in May 2025 co-led by Nysnø Climate Investments and Orlen VC, building on a $26 million Series B in 2023. The company also secured €26 million from the EU Innovation Fund in late 2024 to support construction of a 1.5 GW automated gigafactory in Høvik, Norway, targeting 4.5 GW capacity by 2031.
Iceland Innovation Week 2026
City-wide innovation festival across Reykjavik with 1,500+ attendees, 100+ speakers, and a strong climate focus spanning energy transition, ocean tech, foodtech, and geothermal. Main passes typically EUR 300-600 with free satellite events. Includes climate-pitch formats like Ok, Bye, ideal for impact founders seeking Nordic investors and pilot sites.
Iceland Innovation Week 2027
City-wide innovation festival returning to Reykjavik for its next edition, bringing together founders, investors, creatives and policymakers from across the Nordics and beyond. The week spans climate and energy transition, ocean tech, foodtech and deep tech, pairing a main-stage program with dozens of satellite events, startup pitch formats and investor matchmaking. Ideal for impact founders seeking Nordic investors, pilot sites and partners.
IGC 2027 - Iceland Geothermal Conference
The Iceland Geothermal Conference (IGC) is a leading international event on geothermal energy, held at the Harpa Conference and Concert Centre in Reykjavik. The 6th edition, under the theme 'Geothermal for a Changing World', guides participants through the full geothermal value chain across four tracks: financing and policy, project development, next-generation technologies such as EGS, and community and societal impact.
InoBat
InoBat builds custom-designed batteries for demanding applications such as aviation, premium EVs, and performance mobility. Unlike standard gigafactory players, InoBat focuses on tailored R&D, pilot production, and high-value customers that require specialized chemistry and form factors. By 2026, the company is a strategic player in the EU battery value chain with backing from partners like Rio Tinto and Gotion High-Tech, positioning Slovakia as a serious contributor to Europe’s energy storage ecosystem.
Koen Vandewal
Koen Vandewal is a professor at Hasselt University researching organic semiconductors, photovoltaics and optoelectronic devices, with a focus on charge-transfer states and solar energy conversion. He is a keynote speaker at NANOTEXNOLOGY 2026 in Thessaloniki.
Luís Castro Henriques
General Partner at EDP Ventures, the corporate venture arm of Portuguese energy group EDP. He leads investments in renewable energy, grid, storage and energy-transition technologies, aligning startup innovation with EDP's decarbonisation strategy.
Marathon Venture Capital
Marathon Venture Capital was founded in 2017 by George Tziralis and Panos Papadopoulos (co-founder of BugSense, acquired by Splunk) in Athens to back ambitious Greek and diaspora founders building global technology companies. Fund I reached €32M and Fund II expanded to €70M; Fund III closed at €75M in May 2025 (with €20M from EIF), bringing total AUM to approximately €175M. The fund leads seed rounds of €500K–€1M in sectors including cybersecurity, AI, defense tech, robotics, and energy. Notable portfolio companies include Hack The Box (cybersecurity training, $55M Series B led by Carlyle) and Augmenta (precision agriculture robotics, acquired by CNH Industrial for $110M).
Marvel Fusion
Fusion energy company founded in 2019 in Munich developing laser-based inertial fusion using nanostructured proton-boron fuel targets, backed by over $400M with partners including Siemens Energy.
Messe Essen
MESSE ESSEN GmbH operates the Essen exhibition grounds in the Ruhr region and organises trade fairs and congresses across energy, security, horticulture and leisure. Its best-known technology event is E-world energy & water, the European trade fair for the energy industry, which brings utilities, grid operators, energy traders and energy-software vendors to Essen each February.
