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Top 10 of the Most Promising European Cleantech Companies Revolutionising the Industry

In a world where the urgency to act against climate change has never been greater, and the cleantech industry is one of the few solutions to lead of this global effort. Cleantech, short for clean technology, represents all products and services that reduce negative environmental impacts through energy efficiency, renewable energy, waste management, and pollution reduction. Europe has emerged as a leader in the cleantech revolution, fostering startups that push the boundaries of innovation and sustainability. This article highlights the top 10 of the most promising European cleantech startups, showcasing their contributions and the opportunities they provide to transform our society.

The Rise of Cleantech

During the last few years in Europe, cleantech has evolved from a niche sector to a significant driver of economic growth and environmental sustainability. Marked by innovations contributing to our society's sustainability such as spherical solar energy generators from RawLemon or flood assessment technology from e.Ray Europa, innovations in this industry have grown exponentially in the last decade.

The European Union's ambitious climate targets, such as the Green Deal aiming for carbon neutrality by 2050, have boosted investment and innovation in the sector. Advances in technology, increased consumer awareness, and supportive regulatory frameworks have further accelerated the rise of cleantech. The industry's growth is also propelled by the urgent need to mitigate climate change and the environmental degradation caused by traditional industrial practices.

solar cleantech

The Opportunities Provided by Cleantech in Europe

Europe's commitment to sustainability has, and still is creating an appropriate environment for cleantech startups to grow and scale within the continent. The opportunities in this sector are vast, ranging from renewable energy generation and energy storage to smart home technologies and sustainable agriculture. Cleantech startups are uniquely positioned to benefit from various funding mechanisms, including government grants, venture capital, and green bonds. Additionally, the European market's diverse and environmentally conscious consumer base provides ample opportunities for these startups to scale and expand their impact.

By helping cleantech startups and companies innovate and scale within Europe, the continent aims to become the leader in matters of clean technologies, boost its competitivity on a global scale, and ensure its sovereignty in terms of energy, notably after facing the 2022 energy crisis in which Russia proved Europe's dependency on foreign energy supply.

Top 10 Most Promising European Cleantech Startups

  • Country: Germany

  • Founded: 2012

  • Description: PlugSurfing connects electric vehicle (EV) drivers with charging stations across Europe, facilitating easy and convenient charging.

  • Innovation: Their app-based platform aggregates multiple charging networks, allowing for easier EV charging.

  • Impact: Enhances the accessibility and usability of electric vehicles, reducing reliance on fossil fuels.

  • Growth Potential: Expanding partnerships with charging networks and enhancing app features to support the growing EV market.

  • Country: Spain

  • Founded: 2014

  • Description: RawLemon develops innovative solar energy solutions, including spherical solar generators that maximize energy efficiency.

  • Innovation: Patented spherical solar concentrators that capture and focus sunlight more efficiently than traditional panels.

  • Impact: Increases the efficiency of solar power generation, making renewable energy more viable.

  • Growth Potential: Scaling production and expanding market reach to residential and commercial sectors.

  • Country: Hungary

  • Founded: 2015

  • Description: Platio creates solar pavers that integrate solar technology into urban environments, providing clean energy while saving space.

  • Innovation: Solar panel tiles made from recycled plastic, designed for sidewalks and driveways.

  • Impact: Combines sustainability with functionality, reducing plastic waste and generating renewable energy.

  • Growth Potential: Expanding installations in urban areas and exploring new applications for solar pavers.

  • Country: Germany

  • Founded: 2017

  • Description: Smartivate offers smart home solutions that enhance energy efficiency and user convenience through intelligent automation.

  • Innovation: Customizable smart home systems that optimize energy use and improve living comfort.

  • Impact: Reduces energy consumption and carbon footprint for households.

  • Growth Potential: Developing new smart home features and expanding into more European markets.

  • Country: Netherlands

  • Founded: 2015

  • Description: Dewarte specializes in water purification technologies that provide clean water using sustainable methods.

  • Innovation: Advanced filtration systems that remove contaminants from water sources.

  • Impact: Ensures access to clean water, promoting public health and environmental sustainability.

  • Growth Potential: Expanding technology to underserved regions and diversifying product offerings.

  • Country: Slovenia

  • Founded: 2016

  • Description: SunContract operates a blockchain-based energy trading platform that enables peer-to-peer energy exchange.

  • Innovation: Decentralized platform that allows users to buy and sell renewable energy directly.

  • Impact: Empowers consumers and promotes the use of renewable energy sources.

  • Growth Potential: Expanding the platform's user base and enhancing blockchain capabilities.

  • Country: Sweden

  • Founded: 2012

  • Description: Orbital Systems develops water-saving shower systems that recycle and purify water in real-time.

  • Innovation: Showers that reduce water and energy consumption by recycling up to 90% of the water used.

  • Impact: Significantly reduces household water usage and energy costs.

  • Growth Potential: Scaling production and expanding market reach to eco-conscious consumers and businesses.

  • Country: Germany

  • Founded: 2014

  • Description: e.Ray Europa focuses on renewable energy solutions, including innovative wind and solar power technologies.

  • Innovation: Hybrid renewable energy systems that combine solar and wind power for maximum efficiency.

  • Impact: Increases the adoption of renewable energy and reduces dependence on fossil fuels.

  • Growth Potential: Expanding installations and exploring new markets for hybrid energy solutions.

  • Country: Estonia

  • Founded: 2009

  • Description: Skeleton Technologies produces advanced ultracapacitors for energy storage, enhancing the performance and longevity of energy systems.

  • Innovation: High-performance ultracapacitors that offer faster charging and discharging cycles.

  • Impact: Improves energy storage solutions, supporting the integration of renewable energy into the grid.

  • Growth Potential: Expanding production capacity and developing new applications for ultracapacitors.

  • Country: France

  • Founded: 2011

  • Description: Ÿnsect farms insects for high-quality protein and organic fertilizers, promoting sustainable agriculture.

  • Innovation: Automated insect farming technology that produces sustainable protein and fertilizer products.

  • Impact: Provides eco-friendly alternatives to traditional animal feed and fertilizers, reducing agricultural environmental impact.

  • Growth Potential: Scaling operations and entering new markets for sustainable agricultural products.

businesses in the cleantech industry

Key Insights From These Startups

First of all, innovation is at the heart of the operations of these companies. Each company has developed unique technologies that address specific environmental challenges, from renewable energy generation to water conservation and sustainable agriculture. This focus on innovation not only differentiates them in the market but also allows significant environmental and social benefits.

Secondly, scalability is crucial. As cleantech can only have a considerable impact if widely adopted, these startups design their products and services with scalability in mind, ensuring they can expand their operations and increase their impact. This approach proves the need to attract investment, sell regionally (not only at a national level), and ultimately drive broader adoption of sustainable practices.

Thirdly, these startups demonstrate the importance of a supportive ecosystem. They benefit from Europe's continuous effort to ease the regulatory framework for them, access to funding, and a consumer base that values sustainability. This environment fosters the growth of cleantech innovations and encourages the development of solutions that can make a real difference in the fight against climate change.

Lastly, the need to sensitize the masses and face a green demand shock is undeniable. Although a majority of European citizens value ecology, a lot don't. Therefor, there is also a need for cleantech companies to sensitize the masses to their innovations and solutions. To do so, they must communnicate their message in a language that the consumer understands and values.

To do so, the role of localization cannot be understated. Cleantech startups must face different markets with varying regulations, consumer preferences, and infrastructure. Effective localization strategies enable them to tailor their offerings to local needs, enhancing their chances of success and ensuring their solutions are adopted widely.


Some of the most promising European cleantech startups are leading the charge in revolutionising the industry with their innovative and sustainable solutions. From improving energy efficiency and storage to developing new agricultural practices and water-saving technologies, these startups are making significant strides in addressing some of the world's most pressing environmental challenges. Their success underscores the importance of innovation, scalability, supportive ecosystems, and localization in driving the growth of cleantech.

As the world continues to grapple with the impacts of climate change, the contributions of these startups will be increasingly vital. By supporting and promoting cleantech innovations, we can pave the way for a more sustainable and resilient future. For cleantech startups looking to enhance their growth and reach, localization services offer a crucial advantage, enabling them to navigate diverse markets and maximize their impact. Together, we can build a cleaner, greener world.

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