Carbonaide raises €3.7 million to accelerate international growth and lead the decarbonisation of the construction industry

The Finnish carbonation company has developed a proven technology for mineralizing CO2 and sinking it permanently into concrete, making carbon-negative concrete profitable. The new funding will support Carbonaide’s international expansion and boost R&D activity towards new applications.

Carbonaide, a Finnish startup enabling economically viable green concrete, has raised €3.7 million on its latest funding round, marking a significant milestone in
the company’s mission to transform the concrete industry through carbon dioxide curing and permanent CO₂ storage. The combined investment, which consists of equity and supporting financial instruments, will enable Carbonaide to scale its operations and accelerate key strategic initiatives.

The round was led by Carbonaide’s existing owners, Vantaan Energia, Redstone, and Ihantola Invest, and joined by a group of private investment companies and investors, including Zero Carbon Future Group, Helkama Kiinteistöt, and Ikorni Invest.

“With a lifetime focus on decarbonizing construction, I am very excited by Carbonaide’s potential. Now that the technology is ready to scale, we are thrilled to support the growth of the company and also to partner with Carbonaide to supply carbon data for low-carbon products,” says Panu Pasanen, CEO of One Click LCA and investor through the Zero Carbon Future Group.

The funding will be used to drive progress across three core areas:

● Expansion of customer acquisition by strengthening the company’s global sales
organisation and marketing efforts.
● Further development of the Carbonaide Service Platform – a cloud-based software
platform for managing CO₂ flow, carbon measurements and carbon credit issuance that will serve as the backbone of the company’s solution.
● Accelerated R&D beyond precast concrete – fast-tracking the development of
Carbonaide’s roadmap extension, starting with next-generation carbon dioxide curing for concrete element production. This will pave the way for applications in ready-mix and other concrete types.

Caption: Carbonaide pavement stones in production.

“With this momentum, we are well-positioned to scale our technology, expand our CO₂ partner network, and continue turning concrete factories into carbon sinks,” says Tapio Vehmas, CEO of Carbonaide.

“There is clear demand in the construction industry for solutions that reduce emissions, showing that the industry is turning towards a low-carbon built environment.”

Carbonaide’s technology has been in commercial production since 2024. During 2025, Carbonaide entered into agreements with two Finnish companies, concrete producer Lakan Betoni and concrete element manufacturer Lipa-Betoni, for installing its technology in their factories. Production with the Carbonaide systems begins in both facilities in early 2026. In January 2026, Carbonaide also sold the first certified carbon credits created through its mineralization technology to a Finnish law firm.

Caption: Carbonaide founders: CCO Jonne Hirvonen and CEO Tapio Vehmas.

For additional information (for media): 
Tapio Vehmas, CEO
Carbonaide
+358 40 591 1589
tapio.vehmas@carbonaide.com

We make green concrete profitable. Carbonaide’s mission is to turn building materials from a large emission source into a carbon sink. Our international team, headquartered in Finland, combines knowledge in material sciences, carbon markets, and software engineering to enable the production of carbon-negative concrete. With
the Carbonaide CO₂ solution, concrete manufacturers can utilise carbon dioxide to improve their products and store carbon permanently.
For more information, visit www.carbonaide.com

Source: Carbonaide press release