Hamburg, Germany · Startup 1KOMMA5° (named for the 1.5°C climate target) is one of Europe’s fastest-scaling energy transition companies, reaching unicorn status in roughly 21 months. Based in Hamburg, the firm tackles the “last mile” of decarbonization by combining a roll-up acquisition strategy with a software-defined energy platform. Instead of only selling solar panels, 1KOMMA5° acquires local installer businesses across Europe and digitizes them to deliver end-to-end home electrification — solar, batteries, heat pumps, and EV chargers — with consistent quality and financing. The company’s differentiator is Heartbeat, a proprietary energy management system that turns these assets into a virtual power plant. Heartbeat orchestrates when batteries charge or discharge based on real-time spot prices and grid conditions, allowing households to capture savings from dynamic tariffs and to export power during peak demand. In 2025, the system expanded to automated trading of household energy, making “free” electricity periods during windy or sunny hours a tangible consumer benefit. This blending of hardware deployment and energy-software automation allows 1KOMMA5° to capture margin both on installation and on recurring software and energy services. Founder Philipp Schroder (former Tesla country director and Sonnen executive) used his industry network to skip early accelerators, and the company instead embedded itself in the Hamburg Startup City ecosystem. Its acquisition engine is relentless: by buying regional market leaders, it locks in the most scarce resource in the sector — skilled installers — while rapidly expanding geographic reach. By early 2026, 1KOMMA5° had expanded beyond DACH into the Nordics, Spain, and Australia, positioning itself for a cross-continental footprint ahead of a public listing. The company has signaled an IPO-readiness push, backed by record turnover reported for 2024 and an expansion into branded hardware components to increase margin and supply-chain resilience. Its investor base blends strategic and growth capital: Porsche Ventures provided early backing, G2VP brought Silicon Valley cleantech expertise, Eurazeo and eCapital added European growth capital, and Norrsken VC underscored the impact thesis. In 2026, 1KOMMA5° is a case study in how Europe can scale climate tech through operational execution rather than pure technology — a disciplined roll-up with a software heart that turns millions of households into coordinated energy assets.
Riga, Latvia · Startup Aerones is the world-leading provider of robotic wind turbine maintenance and inspection services. Founded in 2015 by Dainis Kruze and Janis Putrams, the company deploys rope-suspended robots guided by AI software to perform blade cleaning, leading-edge erosion repairs, lightning protection checks, and autonomous visual inspections — completing tasks up to four times faster than manual methods. A Y Combinator W18 graduate, Aerones has raised $115 million in total including a $62 million Series B in 2025, serves customers representing over 50% of global wind power capacity, and operates in 30+ countries.
Kongens Lyngby, Denmark · Person Founder and Managing Partner of PSV Hafnium, Denmark's first dedicated deep-tech venture fund, which closed at €60M in 2025. He invests in science-rooted spinouts across quantum computing, cleantech, new materials, biotech and new space, primarily from Nordic technical universities.
Stavanger, Norway · Person Anders Opedal is President and CEO of Equinor, Norway's state-controlled energy company with operations in over 30 countries and one of the world's largest offshore oil and gas producers. He assumed the CEO role in November 2020, overseeing Equinor's strategy to expand into offshore wind, solar, and hydrogen alongside its legacy hydrocarbon business. Equinor is the main partner of the Scale-Ups venue at ONS 2026, supporting energy startups and scale-ups at the Stavanger event.
Brussels, Belgium · Person Ann Mettler is Vice President for Europe at Breakthrough Energy, the climate-focused investment and advocacy organization founded by Bill Gates to accelerate clean energy innovation globally. She previously led the European Political Strategy Centre, the in-house think tank of the European Commission, and served as Executive Director of The Lisbon Council from 2003 to 2014. She is a prominent voice on European clean energy technology and innovation policy, and a confirmed speaker at the ONS 2026 Strategic Conference.
Reykjavik, Iceland · Startup Atmonia is developing a breakthrough electro-catalytic process for synthesising ammonia directly from air, water and renewable electricity at ambient temperature and pressure — with zero carbon emissions. Its precious-metal-free catalyst technology, protected by multiple patents, could disrupt the conventional Haber-Bosch process that accounts for roughly 2% of global CO2 emissions. Founded in 2016, the company has raised $3M in equity alongside $10M in non-dilutive funding from sources including the Icelandic Research Fund, Technology Development Fund and Horizon Europe. Atmonia collaborates with Fujitsu on AI-accelerated catalyst development and leads the EU-funded VERGE project.
Clermont-Ferrand, France · Startup Develops a smart robotic canopy system that protects vineyards from climate hazards — hail, frost, excess heat and heavy rain. Solar-powered actuators deploy a retractable, recyclable fabric over vine rows on demand, controllable remotely.
Saclay, France · Startup Creates carbon-negative materials using biomineralisation — permanently storing CO2 as a limestone filler derived from cement-industry waste. Founded in 2024 at the LSCE in Paris-Saclay, targeting industrial decarbonisation.
Reykjavik, Iceland · Venture Capital Brunnur Ventures is an early-stage venture capital firm founded in 2013 and focused on high-growth Icelandic startups. The firm backs scalable B2B software, gaming, biotech, cleantech, and marine-tech companies, writing initial seed cheques and following on through growth rounds. With around 34 portfolio companies, the firm has achieved notable exits including CCP Games and Oculis. Key partners include Founding Partner Sigurdur Arnljotsson and Managing Partner Arni Bloendal.
Stockholm, Sweden · Startup Candela is a Stockholm-based marine technology company founded in 2014 that designs and builds electric hydrofoil boats and ferries, which lift out of the water on computer-controlled foils to cut energy use dramatically and extend the range of electric propulsion. Its models include leisure craft and the P-12 electric passenger ferry, and it aims to eliminate fossil fuels from waterborne transport.
Reykjavik, Iceland · Startup Carbfix dissolves captured CO2 in water and injects it into basalt rock formations, where it permanently mineralises into solid carbonate stone in under two years. Founded in 2007 as a joint research initiative by Reykjavik Energy, the University of Iceland, CNRS France, and Columbia University's Earth Institute, the company operates at the Hellisheiði geothermal power plant. In 2023 it secured a $117M EU grant and became the first company to receive an EU permit for onshore carbon capture & storage, with capacity for ~106,000 tonnes of CO2 per year. It was a WIPO Global Awards 2025 finalist and partners with Climeworks on the Mammoth DAC plant.
Reykjavik, Iceland · Startup Carbon Recycling International (CRI) designs, licenses and sells its proprietary Emissions-to-Liquids (ETL) process technology for producing green methanol from captured CO2 emissions and green hydrogen. Founded in 2006 and operating at industrial scale since 2012, CRI is globally recognised as a leader in CO2-to-methanol technology. The company raised $30M led by Equinor Ventures and counts Geely, Methanex and Eyrir Invest among its major shareholders. CRI's technology has been deployed in commercial projects in China, including one of the world's most efficient CO2-to-methanol plants built in partnership with Jiangsu Sailboat.
Speyer, Germany · Startup Speyer-based deep-tech startup building a SaaS platform for green hydrogen production optimisation and virtual power plant management. Its AI-driven platform helps hydrogen producers manage electrolysers, balance supply and demand, and participate in energy markets. Available on the SAP Store.
Antwerp, Belgium · Startup Antwerp-based platform for Scope 3 supply-chain emissions management that helps companies measure, report, and reduce indirect carbon emissions through collaborative supplier engagement. Focuses on the Food & Beverages sector. 800+ companies share sustainability data through the platform. Raised €3.5M seed led by Expon Capital.
Zurich, Switzerland · Startup Climeworks is one of Europe's most important climate-tech companies because it is building commercial direct air capture systems that remove carbon dioxide from ambient air. The company operates in a category that sits beyond emissions reduction alone: carbon removal infrastructure intended to address legacy emissions and hard-to-abate sectors. Its plants use modular collectors and specialized filters to capture CO2, after which the gas can be permanently stored or used in industrial processes. That combination of chemical engineering, energy systems, project execution, and long-term offtake sales makes Climeworks a very different kind of startup from software-led climate businesses. It is a capital-intensive industrial platform that depends on trust, scientific credibility, and customer willingness to commit to the future carbon-removal market. In the European ecosystem, Climeworks matters not only for its own category leadership, but also because it shows that globally significant climate infrastructure can be conceived, financed, and scaled from Europe. It serves as a benchmark for founders and investors interested in hard-tech and climate infrastructure companies where the technical ambition, funding requirements, and operational complexity are far greater than in conventional SaaS.
Riga, Latvia · Accelerator Commercialization Reactor is a deep-tech venture creation platform and accelerator established in 2009 in Riga, ranked among the most experienced science-commercialisation programmes in Europe. It pairs scientists and researchers with entrepreneurial co-founders to build deep-tech startups, and provides up to €50k in pre-seed investment through a six-month programme focused on market and customer development. In 2024 it launched ESA BIC Latvia as the national ESA incubation centre operator, and has supported over 40 portfolio ventures across biotech, cleantech, materials, and space.
Barcelona, Spain · Startup Cooltra is Europe's leading sustainable two-wheel mobility platform, operating fleets of 30,000+ electric mopeds and e-bikes for rental and B2B fleet management across 9 cities in Spain, France, Italy, and Portugal. Founded in Barcelona in 2006 by Timo Buetefisch, Holger Sprengel, and Henrik Sprengel, it has scaled to €60M+ in annual revenue with positive EBITDA and 3M+ registered users. In October 2025 Cooltra acquired rival Kleta after its insolvency, consolidating Spain's e-moped market. The company partners with BMW Motorrad for fleet supply and operates its own charging & maintenance infrastructure.
Dublin, Ireland · Event Ireland's leading data centre conference and exhibition at the RDS Dublin. Combines 100+ exhibitors with multi-stream conference tracks covering colocation, AI, power, cooling and sustainability for 2,000+ infrastructure professionals.
Nice, France · Startup Builds eco-friendly data centres using direct chip liquid cooling and hermetic server enclosures, recovering up to 98% of waste heat for building heating or grid re-injection. Cuts data-centre CO2 emissions by up to 82% while reducing energy costs.
London, United Kingdom · Startup Deep-tech company using Deep Eutectic Solvents — non-toxic, low-energy salts — to recover critical and precious metals from e-waste and industrial waste via a modular, distributed platform. Backed by EU Horizon, EIC Accelerator, SPRIND, Innovate UK and a Mitsubishi partnership.
Istanbul, Turkey · Venture Capital Diffusion Capital Partners (DCP) is Istanbul's leading deep-tech focused venture capital fund manager, with a team that began operations in 2007 and the fund formally established in 2015. DCP closed its first fund at €37M and launched a second fund targeting €35M, backing startups in BioTech, AgroTech, CleanTech, Robotics, Material Science, and Nanotechnology across Turkey and the broader region. The firm has made over 44 investments, primarily at Seed and early Series A stages with initial tickets typically below €500K. DCP's cumulative team experience spans over 70 years in high-tech sectors, offering portfolio companies business development, legal, and operational support alongside capital.
Vilnius, Lithuania · Event One-day GreenTech & digital conference at CYBER CITY Vilnius, co-funded by EDIH Vilnius and Digital Europe, bringing together innovators, startups, investors, and policy leaders around sustainable tech, data, and resilient industry.
Essen, Germany · Accelerator E.ON:agile is the corporate accelerator and innovation unit of E.ON, one of Europe's largest energy utilities, based in Essen. It runs a structured programme for early-stage energy and cleantech startups, offering funding, mentoring and access to E.ON's business units and customer base to pilot and scale new energy solutions.
Vilnius, Lithuania · Event 26th EBAN Congress brings hundreds of European business angels, VCs, and ecosystem leaders to Vilnius for keynotes, an awards gala, and a Lithuanian startup study visit, with focus on Space & Defence Tech, BioTech, and CleanTech.
Lisbon, Portugal · Accelerator EDP Ventures is the corporate venture capital arm of EDP — Energias de Portugal, one of Europe's largest energy utilities. Established in 2008 and headquartered in Lisbon, with investment teams in Madrid and São Paulo, it manages €150M and makes five to eight investments a year, writing €1–10M cheques from Seed through Series B with follow-on capacity.
Its mandate is tightly aligned with EDP's decarbonisation strategy, targeting renewable energy, grid infrastructure, distributed energy resources, green hydrogen, storage and flexibility, electric mobility and energy-use decarbonisation, plus AI and digital. The fund has backed 40+ active companies across Europe and the Americas, including Portuguese AI unicorn Feedzai, battery-recycling firm Green Li-ion and grid-data platform Energyworx (acquired by Gridspertise in 2025); four portfolio companies featured in the 2024 Global Cleantech 100. By end-2023 EDP Ventures had deployed a cumulative €70M and generated over €115M in contract value for EDP group companies.
Eindhoven, Netherlands · Accelerator Established 2010. EU-backed accelerator and investor driving sustainable energy transition with funding, IP support, and industry partnerships; 248 investments and 8 exits, including early backing of Northvolt. Scope: International (EU).
Paris, France · Startup Paris-based ultra-fast EV charging network operator deploying 400 kW stations across nine European countries, enabling 400 km of range recovery in 20 minutes at strategic urban locations. Raised €304M in a 2024 Series B—France's largest mobility infrastructure round at the time—and operates 400+ stations.
Munich, Germany · Startup Munich-based startup deploying turnkey battery energy storage systems for German commercial and industrial SMEs. Its full-service model covers planning, financing, installation, and operations, enabling clients to cut electricity costs and earn additional revenue through energy arbitrage. Raised €25M seed in June 2026.
Berlin, Germany · Startup Enpal is a Berlin-based cleantech company founded in 2017 that sells and rents residential solar panels, batteries, EV chargers and heat pumps on a subscription model, bundling hardware, installation and financing into a fixed monthly fee. It became Germany's first cleantech unicorn in 2021 and operates a virtual power plant that aggregates its installed base. Revenue surpassed one billion euros in 2025.
Barcelona, Spain · Person Co-founder and CEO of Wallbox, the Barcelona EV-charging company that listed on the NYSE. A former Tesla charging engineer, he co-founded Wallbox in 2015 to build smart home and public charging hardware and software.
Riga, Latvia · Incubator ESA BIC Latvia is the official European Space Agency Business Incubation Centre for Latvia, operated by Commercialization Reactor, opened in November 2024 at Riga Technical University. Over five years the centre aims to support 12–18 startups with free financial assistance, two years of business coaching, technical training, access to ESA expertise and satellite data, and legal consultations. It is part of the pan-European ESA BIC network and focuses on space-tech applications and downstream services.
Stockholm, Sweden · Startup Exeger is a Stockholm-based deep-tech company that manufactures Powerfoyle, a patented, silicon-free dye-sensitised solar-cell material that converts both indoor and outdoor light into electricity. Founded in 2008 by entrepreneur Giovanni Fili and scientist Dr Henrik Lindström — joint winners of the European Inventor Award in 2021 — the company spent a decade developing and patenting the technology before scaling commercial production at two factories in Kista, Stockholm.
Powerfoyle is integrated as a thin, flexible film directly into product surfaces, removing the need for charging cables or disposable batteries. Shipping products span headphones and earbuds (Urbanista, adidas), cycling helmets (POC), professional hearing protection (3M Peltor), digital shelf labels (VusionGroup), remote controls (Philips, Hama) and IoT sensors. Exeger has raised over €169M from backers including SoftBank, Swedish pension fund AMF, the European Investment Bank (€35M InvestEU loan) and Fortum, and in late 2025 secured a SEK 130M grant from the Swedish Energy Agency and was selected for the NATO DIANA defence accelerator.
Stockholm, Sweden · Startup Flower is a Stockholm-based energytech company founded in 2020 by John Diklev; its name is a contraction of flexible power. Flower develops hardware-agnostic AI and machine-learning software for forecasting, optimisation, and trading of flexible energy assets, including large-scale battery energy storage systems, solar and wind farms, hydro, EV charge points, and data centres, operating them as a virtual power plant to provide grid balancing, frequency regulation, congestion management, and day-ahead trading. Alongside its optimisation platform, Flower develops and operates grid-scale battery storage projects in Sweden. The company raised a Series A round led by Northzone in 2024.
Lisbon, Portugal · Person Managing Director at EDP Ventures, where he leads energy-transition and cleantech investments for the corporate VC arm of EDP across Europe and the Americas, working closely with portfolio companies to deploy their technology within EDP's operations.
London, United Kingdom · Startup 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.
Paris, France · Startup French AgriTech startup that rates soil health across 35 agronomic indicators—biodiversity, carbon sequestration, and pollution levels—using AI and sensor data, providing continuous monitoring for regenerative farming operations. Clients include LVMH, Rémy Cointreau, and Barilla. VivaTech 2026 Tech for Change finalist.
Lugano, Switzerland · Startup Develops MADE (Microwave Assisted DEpolymerisation), chemical recycling for PET plastics and polyester textiles able to process PET unrecyclable by mechanical methods. Closed a €15.5M Series B to build an industrial-scale microwave PET recycling plant in Spain.
Tartu, Estonia · Event Organisator 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.
Oslo, Norway · Startup Hyke is a Norwegian zero-emission electric ferry startup founded in 2018 by designer and entrepreneur Bård Eker as a spin-out from Eker Group. Its lightweight, fully electric ferries use up to 88% less energy than diesel equivalents and are designed for autonomous operation in urban and inland waterways. The F-15 shuttle completed a 14-month public transport trial in Fredrikstad carrying over 41,000 passengers between April 2024 and mid-2025. Hyke supplied river shuttles for the Paris 2024 Olympic Games with backing from RIVE Private Investment, and former Norwegian Minister of Transport Ketil Solvik-Olsen joined as a key executive.
Oslo, Norway · Startup 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.
Reykjavik, Iceland · Event 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.
Paris, France · Startup Developed Voltage Induced Reverse Osmosis (VIRO), a pressure-free desalination technology that uses a low-voltage panel to drive water through standard RO membranes, removing the need for high-pressure pumps. Spun out of ENS-PSL Paris.
Paris, France · Startup Produces sustainable insect-based ingredients from the Black Soldier Fly for aquaculture, pet food and plant nutrition. Founded in 2016, it has produced over 15,000 tonnes of protein and oil and secured €51M to scale commercial growth.
Reykjavik, Iceland · Accelerator KLAK is a non-profit accelerator and entrepreneurship support organization founded in 2000, formed through the 2013 merger of Klak and Innovit. It is owned by the University of Iceland, Reykjavík University, the Kría Innovation Fund, and the Federation of Icelandic Industries. KLAK runs three to four sector-specific accelerator programs annually, operates the Gulleggið startup competition (Iceland's largest, with over 3,000 ideas submitted since 2008), and provides mentorship and international growth support to early-stage Icelandic companies.
Warsaw, Poland · Person Polish-Swedish serial entrepreneur who co-founded and scaled PizzaPortal (acquired by Delivery Hero) and the solar-roofing company SunRoof. He has founded more than ten companies, angel-invested in dozens of startups and authored three books on startup fundraising.
Lisbon, Portugal · Person 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.
Birkirkara, Malta · Startup MannaEV is Malta's first electric motorcycle delivery and battery-swapping startup, founded in early 2023 by three co-founders with backgrounds from Google, Alibaba, TikTok, and Lazada. The company operates an on-demand same-day delivery platform powered by smart electric motorcycles and a battery-swapping network, eliminating range anxiety and enabling rapid fleet turnaround. Within its first year MannaEV scaled to 500+ customers and deployed 50+ electric motorcycles across three battery-swapping hubs on the island without external VC funding. It won multiple categories at the Malta Business Awards 2024 and has a commercial partnership with Bolt Malta.
Maastricht, Netherlands · Startup Mosa Meat is a Maastricht-based food-technology company founded in 2016 by the team behind the world's first cultured hamburger, presented in 2013. It develops cultivated (lab-grown) beef produced from animal cells rather than slaughtered livestock, aiming to make real meat with a far smaller environmental footprint as it works toward regulatory approval and scale-up.
Riga, Latvia · Startup Naco Technologies develops proprietary PVD nano-coatings that replace expensive platinum-group metals in hydrogen electrolysers and fuel cells, reducing the cost of green hydrogen production at scale. Founded in 2010 by Aleksandrs Parfinovičs and Raivis Nikitins, the company secured €8 million in equity plus a €2.3 million EIC Accelerator grant in 2023, followed by a further €2.5 million pre-Series A round in 2025. Naco's coatings target bipolar plates, gas diffusion layers, and membrane electrode assemblies.
Warsaw, Poland · Startup NanoSci is a Warsaw-registered Polish deep-tech startup, founded in 2020, that develops photocatalytic air-purification technology licensed to manufacturers of ventilation, lighting and transport equipment. Its core IP — researched at the University of Gdańsk under Prof. Adriana Zaleska-Medynska — is built on porous titanium dioxide (TiO₂) nanolayers and nanotube arrays activated by UV-LED light. The photocatalytic reaction generates hydroxyl radicals that continuously decompose volatile organic compounds, nitrogen oxides, odours, bacteria, viruses and fungi into harmless CO₂ and water vapour, with no replaceable filters and very low energy use.
Rather than selling finished consumer devices, NanoSci provides modular photocatalytic engines to OEM and white-label partners; an early collaboration with bus maker Solaris demonstrated the technology in public-transport air conditioning. Two branded lines are now visible: Jupitair, targeting food and greenhouse environments (with deployments in Singapore and the Philippines and a place in Thailand's SPACE-F accelerator), and Airchanger, a decentralised heat-recovery ventilation unit with integrated purification. The company has raised early equity alongside Polish state grants and support from accelerators including AcceliCITY and Estonia's Beamline.
Berlin, Germany · Event Organisator Leading event series organiser focused on accelerating the decarbonization of data centres and other energy-intensive industries. Through conferences and expos held across European cities, Net Zero Events connects sustainability-focused startups with facility operators, energy providers, and policymakers working toward net-zero carbon targets.
Berlin, Germany · Event Europe's leading event focused on accelerating data centre decarbonization, bringing together operators, technology providers, and sustainability leaders in Berlin. Covers renewable energy integration, cooling innovation, and carbon-neutral infrastructure design. Relevant for cleantech and infrastructure startups targeting the rapidly growing data centre market.
Bratislava, Slovakia · Venture Capital Neulogy Ventures is one of the leading deeptech venture capital funds in Central and Eastern Europe, established in 2014 and operating from Bratislava with a Luxembourg fund structure. It manages €65 million in assets under management across approximately 30 portfolio companies in 10 countries, writing cheques of €200,000–€3 million primarily at Seed and Series A stages. The fund targets mission-driven Slovak and CEE technology companies addressing climate change, healthcare, and industrial automation. Institutional co-investors include the European Investment Fund, Slovak Investment Holding, and Tatra banka.
Wageningen, Netherlands · Startup Grows wood from tree stem cells in bioreactors without logging, producing material far faster than conventional forestry. Founded in 2023 on Wageningen Campus, it raised an oversubscribed €2.1M pre-seed to advance cultured-wood technology.
Turin, Italy · Startup newcleo develops Generation IV lead-cooled fast reactors (LFRs) fuelled by recycled nuclear waste, targeting a closed-fuel-cycle that dramatically reduces long-term radioactive waste. Founded in 2021 by Stefano Buono — previously founder of NASDAQ-listed nuclear medicine company Advanced Accelerator Applications, acquired by Novartis for $3.9 billion — newcleo has raised over $755 million to date, including $85 million in early 2026. The company is building PRECURSOR, a 10 MW non-nuclear lead-cooled test system at ENEA's Brasimone Research Center in Italy, with a full demonstration reactor planned for France by 2032 and €28 million invested in Turin research facilities.
Amersfoort, Netherlands · Startup Extends the life of lithium-ion batteries through repair, remanufacturing, diagnostics and maintenance using original parts. Founded 2019; operates hubs in the Netherlands and France with capacity for 120,000+ batteries per year.
Cambridge, United Kingdom · Startup Cambridge, UK battery company developing extreme fast-charge technology using tungsten-based anode chemistry. Its cells recharge to 80% in under five minutes, targeting industrial EVs, power tools, and consumer electronics. Raised a $60M Series C in 2024 at a reported $1B valuation.
Oslo, Norway · Event Norway's largest innovation festival spanning a full week with 100+ events across Oslo, organized by Innovation Norway and the City of Oslo. Covers cleantech, ocean tech, healthtech, and fintech with 10,000+ participants. Most events are free or low-cost, making it highly accessible.
Paris, France · Person Patrick Pouyanné is Chairman of the Board and CEO of TotalEnergies, one of the world's five largest integrated energy companies with operations in over 130 countries and revenues exceeding €200 billion annually. He has led TotalEnergies since 2014, steering its transition toward a multi-energy strategy encompassing LNG, solar, wind, and electricity alongside oil and gas. He is a confirmed speaker at the ONS 2026 Strategic Conference in Stavanger, Norway.
Lyon, France · Event Europe's leading environmental and energy technologies trade show at Eurexpo Lyon, organised by RX. Pollutec covers waste, water, energy, contaminated sites, air quality, risk prevention and the bioeconomy, connecting cleantech and greentech startups with industry, utilities and public buyers.
Antwerp, Belgium · Event Organisator One of Europe’s largest ports and a hub for maritime logistics, energy and industrial innovation. It organises events including Port of the Future Week and the Breakbulk Summit, convening port authorities, technology providers and the autonomous-systems community to shape the future of port operations and breakbulk logistics.
Munich, Germany · Startup Proxima Fusion is a deep-tech fusion energy company spun out from the Max Planck Institute for Plasma Physics in 2023. It is developing quasi-isodynamic stellarator systems designed for stable, commercial fusion power generation and is targeting a demonstrator pathway toward net-energy performance in the next decade.
Vilnius, Lithuania · Startup PVcase is a Lithuanian solar PV software company providing an end-to-end solar project development platform that covers site selection, PV system design and energy yield optimisation for utility-scale, commercial rooftop and data-center projects. Its software automates terrain-based solar engineering to reduce design errors and project risk. Headquartered in Vilnius with additional offices in Spain, the UK and the US, the company serves solar developers and engineering firms internationally, and acquired solar site-selection software company Anderson Optimization in 2023.
Copenhagen, Denmark · Person Rasmus Errboe is CEO and Group President of Ørsted, the world's largest offshore wind developer headquartered in Fredericia, Denmark, with operations in Europe, Asia-Pacific, and the Americas. He became CEO in February 2025, succeeding Mads Nipper, having previously served as Deputy CEO, Chief Commercial Officer, and Interim CFO since joining Ørsted in 2012. He was responsible for Ørsted's 2016 IPO and the 2017 divestment of its oil and gas business, and is a member of the Confederation of Danish Industries' Main Board.
Warsaw, Poland · Startup Cloud-based sustainability platform using machine learning to help businesses measure, analyse and plan carbon emissions reductions. Founded in 2022, it supports European companies in meeting ESG reporting requirements.
Augsburg, Germany · Startup Reonic is a German climate tech company that builds planning and workflow software for renewable energy installers, helping them work more efficiently. Its AI-powered platform covers the full customer journey for installations of solar PV systems, heat pumps, energy storage and EV charging, integrating CRM, system design, proposal generation and a mobile field app. The company was founded in Augsburg, Bavaria, and has expanded with additional offices. In September 2024 Reonic raised 13 million euro in Series A funding led by Northzone, with participation from Point Nine and Puzzle Ventures.
Nuutajärvi, Finland · Startup Offers a Sand-as-a-Service model using patented modular sand reclaimers to regenerate and recycle foundry sand on-site, enabling near-100% reuse. Expanded its Norion Bank facility to €25M following new contracts in Germany and Slovenia.
Paris, France · Startup Gives second life to used lithium-ion EV and industrial batteries, remanufacturing them into affordable residential solar energy storage systems that let households self-consume up to 90% of their solar production.
Baku, Azerbaijan · Accelerator SABAH.HUB is a private innovation center and accelerator founded in 2021 that supports startups at pre-seed and seed stages. It offers incubation, acceleration, and education tracks (SABAH.academy, SABAH.incubation, SABAH.lab) and has made 16 investments in its portfolio. It co-organizes the Baku Investment Day (Baku ID) conference in partnership with the World Economic Forum's Centre for the Fourth Industrial Revolution Network.
Barcelona, Spain · Accelerator Founded 2013. Impact accelerator and investment fund for social enterprises in health, cleantech, and energy. Runs acceleration programs and an impact fund; has accelerated 50+ startups. Support: mentoring, CSR partners, impact investment up to EUR 400K. Scope: National.
Tallinn, Estonia · Startup Skeleton Technologies is an Estonian energy storage company founded in 2009 by Taavi Madiberk and Oliver Ahlberg, specializing in ultracapacitors and supercapacitors built with its proprietary Curved Graphene material. The company's products deliver rapid-charge, high-power energy storage for transportation, grid balancing, and industrial applications. Skeleton operates a manufacturing facility in Germany and has raised over EUR 200 million, including backing from the European Investment Bank and strategic partners in automotive and energy. It is one of the most capital-intensive deep-tech startups from the Baltics and a European leader in next-generation energy storage hardware.
Helsinki, Finland · Startup Solar Foods produces Solein, a single-cell protein made via gas fermentation using CO2, hydrogen and electricity — entirely decoupled from agriculture. Founded in 2017 as a VTT and LUT University spin-off, the company opened the world's first commercial-scale air-protein facility in Vantaa in 2024. In 2026 it is advancing its EFSA novel food approval and finalising the investment decision for Factory 02 in Lappeenranta, which will scale annual capacity from 160 to 6,400 tonnes. Fortum is a key investor and strategic partner for district heating integration.
Bordeaux, France · Startup Restores soil health through AI-powered DNA sequencing of soil microbiomes, having built the first bacterial genome atlas for Bordeaux vineyard soils. Develops non-GMO, bacteria-based biosolutions to improve crop resilience in a changing climate.
Reykjavik, Iceland · Event Iceland's premier startup and entrepreneurship conference founded by Bala Kamallakharan, bringing together Nordic and international founders, investors, and thought leaders in Reykjavik. Known for its intimate, high-quality format with 400+ attendees and strong focus on sustainability, geothermal energy, and ocean tech. Tickets from EUR 200-400.
Helsinki, Finland · Startup Steady Energy develops the LDR-50, a simplified small modular reactor (SMR) delivering 50 MW of thermal output for zero-carbon district heating. Founded in 2023 as a spin-off from VTT Technical Research Centre of Finland, the company raised €32 million and in February 2026 poured first concrete for a full-scale non-nuclear pilot plant inside Helsinki's former Salmisaari coal power station. Fortum and Finnish energy utility Helen are strategic partners. Steady Energy is also expanding to Sweden, targeting district heating decarbonisation across the Nordic region.
Gdańsk, Poland · Startup SunRoof is a Polish-Swedish cleantech company building 2-in-1 integrated solar roofs — building-integrated photovoltaics (BIPV) that replace conventional roofing material entirely with a solar-generating surface for residential and commercial buildings. Founded in 2013 by Lech Kaniuk, Karol Kaniuk, Marek Zmysłowski and Rafał Plutecki, the company runs its main R&D and production hub in Gdańsk under a Swedish holding (SunRoof International), and operates across Poland, Sweden and Germany.
SunRoof has raised roughly €28.5M, including a €15M round led by the Klima Energy Transition Fund (Alantra), with earlier backing from World Fund, Nordic Alpha Partners, Inovo Venture Partners, SMOK Ventures and Alfabeat. It grew past 130 employees and positions its integrated roofs as a lower-carbon, design-led alternative to bolt-on solar panels.
Tartu, Estonia · Event Tartu Hydrogen Days is a two-day international conference convening hydrogen-technology experts, entrepreneurs, scientists and policymakers to accelerate the hydrogen economy in Estonia, the Baltics and beyond. The 2026 edition, themed 'Future Energy Today', features international and local presentations, panels, workshops, an exhibition area and networking, drawing participants from Finland, Latvia, Lithuania and Sweden.
Copenhagen, Denmark · Event The startup event of the Nordics: the 14th edition of TechBBQ moves to Bella Center Copenhagen on 26-27 August 2026, gathering 10,000+ founders, investors and builders from 50+ countries across two days. Programming spans AI, life sciences and deep tech, a startup pitch competition and AI-powered matchmaking. Backed by the Danish Industry Foundation, the Novo Nordisk Foundation and Realdania.
Copenhagen, Denmark · Event A unique festival exploring how technology shapes humanity, blending tech demos with art installations, workshops, and debates. Features 100+ sessions across Copenhagen venues with topics like ethical AI, climate tech, and digital democracy. Free and ticketed events attract 5,000+ attendees.
Gdańsk, Poland · Startup Full-stack carbon management platform offering SaaS tools for CO2e calculation, reporting and reduction. Its Tergoscope helps companies meet sustainability regulations, while TERbit tracks emission savings from eco-friendly transport choices.
Oslo, Norway · Event Norway's premier business transformation conference focused on sustainability, circular economy, and climate tech. Held in Oslo and organized with support from the Confederation of Norwegian Enterprise (NHO). Attracts 1,500+ executives, founders, and investors working on green transition. Tickets from EUR 300-600.
Porto, Portugal · Venture Studio Venture Catalysts is an innovative venture studio and venture builder program based in Porto, Portugal, specializing in spinning up companies from scientific research and technical projects. Founded around 2015 (with roots as a university initiative), Venture Catalysts takes a hands-on approach to pair scientists and engineers with business co-founders to create startups in fields like medtech, cleantech, and AI. The program identifies promising technologies (often from local universities like University of Porto or from labs across Portugal) and provides a structured process to form a company, develop an MVP, and obtain early funding. Each year, it selects a batch of projects and offers resources such as lab access, initial capital (seed grants or investment from partnered funds), and a network of corporate partners for pilots. A distinctive feature is how it integrates venture building with funding: Venture Catalysts can provide seed capital through grants or its partnered VC funds (often up to €200k), and also connects teams with larger investors for follow-ons. The studio’s track record includes helping create SWORD Health (digital physiotherapy startup that became a unicorn) and AddVolt (electric truck battery solution acquired by Daimler). These successes highlight the model’s efficacy – both companies started as technical projects in Portugal and through Venture Catalysts’ support, gained product-market fit and international traction. The venture studio is backed by both private and public stakeholders (it has worked with Portugal’s innovation agency and corporates like EDP in energy tech). Located in Porto’s up-and-coming innovation district, Venture Catalysts has contributed to making Porto a deep-tech startup hub beyond the usual Lisbon scene. The program puts heavy emphasis on team formation – often recruiting experienced entrepreneurs or MBAs to join scientific founders as CEOs or business leads, ensuring startups have both technical depth and commercial acumen. With a regional focus, it has kept many high-tech startups in Northern Portugal, strengthening the local ecosystem. In summary, Venture Catalysts serves as a venture co-founder for scientists – turning lab breakthroughs into viable companies by providing the missing pieces (business talent, early capital, industry links). Its portfolio’s achievements, like SWORD Health’s growth, demonstrate the powerful potential of the venture studio model in catalyzing innovation.
Bratislava, Slovakia · Venture Capital Venture to Future Fund (VFF) is a state-backed venture capital fund established in 2019 through a joint initiative of the European Investment Bank, the Slovak Ministry of Finance, and Slovak Investment Holding. It launched investments in June 2020 with an initial €40.4 million mandate, subsequently expanded by €15.3 million from the Slovak Recovery and Resilience Plan in 2024, extending its investment period through 2026. VFF focuses exclusively on Slovak innovative SMEs and EU companies with capital ties to Slovakia, deploying €400,000–€7 million per company. Since inception it has backed 16 companies including Photoneo, Sensoneo, Fuergy, and Powerful Medical.
Stockholm, Sweden · Startup Voi Technology is a Swedish micromobility company headquartered in Stockholm that operates shared electric scooters and e-bikes across European cities. Founded in 2018, it was one of the first electric scooter operators to launch in Europe, partnering with cities to provide app-based, dockless vehicle rentals as a sustainable alternative for short urban trips. The company reported reaching profitability in 2024 and has scaled to nearly 1,000 employees across multiple European countries, raising financing through both equity rounds and bond issuances.
Luxembourg City, Luxembourg · Startup Luxembourg deep-tech startup developing heated polymer filaments using advanced nanocomposite materials for surface heating applications in electric vehicles and smart buildings. Its ultra-thin conductive wire enables efficient in-cabin and battery heating for EVs, reducing range loss in cold weather. Founded in 2022 by Vlad Batkhin.
Barcelona, Spain · Startup Wallbox designs and manufactures smart EV charging hardware and energy management software, selling chargers in 100+ countries. Co-founded in 2015 by ex-Tesla engineer Enric Asunción and Eduard Castañeda, the company listed on the NYSE in 2021. Its Barcelona factory produces up to 1 million chargers annually. Q1 2026 revenue reached €29.7M with a 37.3% gross margin. A major Iberdrola contract for 10,000 Hypernova ultrafast public chargers is set to double ultrafast public charging in Spain, cementing Wallbox as the European leader in home and commercial EV charging.
Warsaw, Poland · Startup Cleantech spinout from Warsaw University of Technology building autonomous floating WaterStation units for inland water monitoring. The platform combines disposable electrochemical sensors with forecasting models to detect and predict ecological threats.
Dublin, Ireland · Startup Wia is a Dublin-based IoT cloud platform that helps businesses monitor occupancy, air quality, and energy consumption in real time to create smarter and more sustainable environments. Founded in 2015 by Conall Laverty, the platform is used by over 10,000 clients across 100 countries. Backed by Suir Valley Ventures and Enterprise Ireland, Wia has raised approximately €1 million in venture capital and its founder was named in Forbes 30 Under 30 Europe. The company positions itself as an accessible developer-friendly IoT infrastructure layer.
Trondheim, Norway · Startup Zeabuz is a Trondheim-based maritime autonomy startup founded in 2019 as a spin-off from NTNU. It develops autonomous, zero-emission electric ferry systems for urban waterways, combining advanced sensors, navigation and AI to operate without a crew. In 2023, Zeabuz and Torghatten launched Estelle in Stockholm — the world's first commercial autonomous passenger ferry. In 2025 the company signed a Letter of Intent with Haugesund municipality for Norway's first autonomous city ferry, connecting three urban waterfront locations, and is providing autonomy solutions to additional Scandinavian ferry operators.
Zurich, Switzerland · Startup Develops Solskin, an AI-controlled adaptive facade combining dynamic photovoltaic panels with automated sun shading. Active solar tracking raises PV output by 40%+, while AI-driven shading cuts building air-conditioning energy by 20–80%.