CleanTech startup ecosystem
We track 95 organisations in this sector across 6+ countries.
Showing 61–80 of 95 CleanTech
Countries in this sector
Sectors alongside this one
CleanTech results
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Nyobolt
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.
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Oslo Innovation Week 2026
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.
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Patrick Pouyanné
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.
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Pollutec 2026
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.
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Port of Antwerp-Bruges
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.
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Proxima Fusion
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.
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PVcase
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.
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Rasmus Errboe
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.
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Redigo Carbon
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.
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Reonic
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.
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Resand
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.
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Revolty
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.
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SABAH.HUB
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.
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Ship2B
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.
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Skeleton Technologies
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.
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Solar Foods
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.
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Starfish Bioscience
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.
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Startup Iceland 2026
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.
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Steady Energy
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.
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Strawberry Energy
Strawberry Energy is a Belgrade-founded smart-city and clean-tech startup best known for Strawberry Tree, a solar-powered public charging and urban-data station that became one of the first widely deployed pieces of street furniture combining renewable energy, IoT sensing, and free phone charging for cities. Founded in 2011 by Miloš Milisavljević while he was still a university student, the company has placed its units across the Balkans, the UK, and the Middle East, and expanded into smart-city data platforms that feed environmental, footfall, and air-quality metrics back to municipalities. Strawberry was recognized early as a European clean-tech pioneer, winning the European Commission's 'European Champion' award and being featured in MIT Technology Review's Innovators Under 35. For the directory it is a strong example of physical-product clean-tech built from Serbia, a counterpoint to the region's dominant gaming and SaaS stories.
