European ClimateTech: Decarbonization as a Profitable Business

June 2026 was the hottest on record in Western Europe, according to the World Meteorological Organization, which also rated it as the second warmest globally. While the European Commission prepares its Electrification Action Plan, scheduled for release on July 15, 2026, the pressure to decarbonize the economy is at its peak. However, according to parliamentary sources, the plan will not include new measures to improve access to cooling technologies, despite rising temperatures across the continent. In this context, European ClimateTech startups are proving that reducing emissions is not only necessary but also a multi-million business.

What happened?

The portal EU-Startups has identified ten European startups that are capitalizing on the energy transition. Among them, Sweden's Aira, which offers heat pumps and energy efficiency solutions for homes, and Germany's cylib, specialized in lithium-ion battery recycling, stand out. Aira, founded in 2022, has raised over €621 million in five rounds, including €150 million in August 2025. The company has grown rapidly, expanding into markets such as the UK, Germany, and Italy, and employs over 1,000 people. cylib, meanwhile, has secured €156.1 million, with a Series A of €55 million in May 2024. The German startup has developed a patented recycling process that recovers up to 95% of critical battery materials like lithium, cobalt, and nickel, and plans to build its first large-scale industrial plant in Germany by 2027.

Other notable startups include France's Greenly, which offers a carbon accounting platform for businesses and has raised €52 million to date; and Spain's RatedPower, which provides software to optimize solar plant design, recently acquired by a multinational. Also featured are the UK's Kaluza, which develops smart energy management platforms for utilities, and Norway's Hystar, which produces proton exchange membrane (PEM) electrolyzers for green hydrogen production, with total funding of €84 million.

Why is it important?

These startups not only help mitigate climate change but also generate jobs, attract investment, and strengthen Europe's strategic autonomy. Aira facilitates the electrification of residential heating, reducing dependence on fossil fuels. According to European Commission data, buildings account for 40% of energy consumption and 36% of CO2 emissions in the EU. Aira's heat pumps can reduce a home's carbon emissions by up to 70% compared to gas boilers. cylib recovers critical materials like lithium, cobalt, and nickel, closing the battery loop and reducing the need for virgin mining. It is estimated that by 2030, Europe will need to recycle 500,000 tons of electric vehicle batteries annually, and startups like cylib are positioned to capture that market.

Both are examples of how technology can be both profitable and sustainable. The European ClimateTech sector has attracted over €20 billion in venture capital investment since 2020, according to Dealroom, and is expected to continue growing as governments implement stricter decarbonization policies.

Consequences and outlook

The success of these startups could accelerate the adoption of clean technologies and pressure governments to implement supportive policies. However, the sector faces significant challenges: production scale remains an obstacle, especially for technologies like battery recycling and green hydrogen production. Global competition, particularly from China, which dominates the battery and solar panel supply chain, poses a threat to European companies. Additionally, the need for stable regulatory frameworks is crucial; for example, the lack of cooling measures in the Electrification Action Plan could hinder heat pump adoption in warm climates.

Investment in ClimateTech continues to grow, but a favorable ecosystem is needed for these companies to compete and expand. According to a European Commission report, the EU needs to invest an additional €350 billion per year to meet its 2030 climate goals. Startups can play a key role, but they need access to funding, talent, and markets. The recent approval of the Net-Zero Industry Act by the European Parliament, which sets targets for domestic production of clean technologies, could give the sector an additional boost.

What readers should know

Decarbonization is not just a moral obligation but a business opportunity. Companies like Aira and cylib are proving that it is possible to generate attractive returns while fighting climate change. Investors interested in sustainability should pay attention to this sector, which promises to be one of the economic drivers of the next decade. However, they should also be aware of the risks: dependence on government subsidies, volatility in raw material markets, and Asian competition. For users, these startups offer concrete solutions to reduce their carbon footprint and save on energy costs in the long term. The European Commission's Electrification Action Plan, although criticized for not including cooling measures, could establish a framework to accelerate the adoption of technologies like heat pumps and electric vehicles, benefiting startups like Aira. In short, European ClimateTech is not only helping to save the planet but also creating quality jobs and attracting global investment.

"The pressure to decarbonize the economy is at its peak, and European startups are proving that sustainability can be profitable."