Carbonaide has raised €3.7 million to scale its carbon-negative concrete technology internationally and deepen its R&D push, as the construction sector races to decarbonise. The round was led by existing backers Vantaan Energia Oy, Redstone, North Karelia Growth Fund, and Ihantola Invest, with participation from Zero Carbon Future Group, Helkama Kiinteistöt, Ikorni Invest, and other private investors. Carbonaide has developed a commercially proven process that mineralises CO₂ into concrete during curing, permanently locking it away while improving material performance—turning concrete plants into carbon sinks rather than emitters. The fresh capital will be used to expand global sales and marketing, advance the company’s cloud-based Carbonaide Service Platform for CO₂ management and carbon credit issuance, and accelerate R&D beyond precast concrete into ready-mix and new applications.
Founded to tackle one of the world’s most carbon-intensive industries, Carbonaide has developed a commercially proven technology that mineralises carbon dioxide directly into concrete during the curing process. The CO₂ is permanently stored in the material, enabling concrete production that can be carbon-negative while remaining economically viable.
The new capital will be deployed across three main priorities. Carbonaide plans to strengthen its global sales and marketing organisation to support customer acquisition beyond its home market, continue developing its cloud-based Carbonaide Service Platform for CO₂ flow management, carbon measurement, and carbon credit issuance, and accelerate R&D into new applications beyond precast concrete. This includes next-generation CO₂ curing technologies that could unlock use cases in ready-mix concrete and other concrete types.
“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.
Carbonaide’s technology has been in commercial production since 2024. In 2025, the company signed agreements with Finnish concrete producer Lakan Betoni and concrete element manufacturer Lipa-Betoni to install its systems in their factories, with production set to begin in early 2026. Earlier this year, Carbonaide also sold its first certified carbon credits generated through its mineralisation process to a Finnish law firm.
“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.”
As regulators and developers increasingly seek measurable, permanent emissions reductions, Carbonaide is positioning itself at the intersection of green materials, carbon markets, and industrial decarbonisation—aiming to make low-carbon concrete not just possible, but profitable.
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Read the orginal article: https://arcticstartup.com/carbonaide-raises-e3-7m/
