Austria’s sequestra closes €3 million Seed round
Austrian climate-tech startup sequestra has raised a €3 million Seed round to accelerate the industrial deployment of its proprietary CO2 mineralisation technology. The funding will be used to scale pilot projects with heavy industrial partners and move the company’s solution closer to full commercial rollout.
Turning captured CO2 into stable minerals
Sequestra focuses on a crucial gap in the carbon capture and storage value chain: what happens to captured CO2 once it leaves the smokestack. Instead of relying on costly and often controversial underground storage, the startup uses a process of mineral carbonation to bind CO2 permanently into rock-like materials.
The company’s technology reacts CO2 with naturally occurring or industrial minerals, converting the gas into stable carbonates that can be safely stored or potentially used in construction materials. This approach aims to deliver long-term carbon removal while creating a scalable pathway for industrial decarbonisation.
Targeting hard-to-abate industries
Sequestra is positioning its solution for sectors where industrial emissions are hardest to eliminate, such as cement, steel, and chemicals. These industries face mounting pressure from EU climate policy, rising carbon prices, and corporate net-zero commitments, yet often lack practical options beyond incremental efficiency gains.
By integrating its mineralisation units with existing plants, sequestra aims to offer an offtake route for captured CO2 that is both permanent and verifiable. The new Seed capital will support engineering scale-up, on-site demonstrations, and the refinement of monitoring, reporting, and verification frameworks demanded by regulators and corporate buyers of carbon removal credits.
Positioning within Europe’s climate-tech ecosystem
The Seed round underscores growing investor confidence in carbon removal technologies as Europe races to meet its 2030 and 2050 climate targets. As governments tighten emissions rules and large emitters seek credible pathways to reduce their climate footprint, solutions like sequestra’s mineralisation platform are emerging as a strategic component of the continent’s broader decarbonisation toolkit.