Sequestra Raises €3M for CO2 Mineralization Technology

Vienna-based climate tech innovator, sequestra, has successfully closed a €3 million Seed funding round, signaling a significant step forward in its mission to industrialize carbon dioxide mineralization. The investment, spearheaded by VSE Beteiligungs-GmbH and bolstered by Dr Rudolf Fries Familien-Privatstiftung, a prominent Austrian industrial investment entity, will fuel the expansion of sequestra's analytical capabilities and the scaling of its proprietary carbonation technology. This capital infusion, combined with existing federal research grants from agencies like the Austrian Research Promotion Agency (FFG) and Austria Wirtschaftsservice (aws), brings the company's total available funding to approximately €5 million.

The newly acquired capital is earmarked for critical development phases, including the enhancement of sequestra's data laboratory and the significant scale-up of its industrial processes. Co-founder and Co-CEO Roberto Lerche highlighted the strategic importance of this funding, stating, "This fresh capital enables us to enter the next stage of sequestra’s technology development, in which we leverage our analytical data-assets to scale up our industrial process to 1 ton per hour and deploy our containerised carbonation systems in industrial projects." This strategic move aims to transition the company from pilot stages to tangible industrial deployments.

Founded in 2024 by Roberto Lerche, Lukas Höber, and Gero Schwarz, sequestra is pioneering a machine learning-driven approach to optimize the cost-effectiveness of carbonation across a variety of industrial materials. Their integrated platform encompasses detailed material analysis, sophisticated data interpretation, and on-site industrial carbonation units equipped with in-house monitoring, reporting, and verification (MRV) systems. This comprehensive, end-to-end solution addresses the growing demand for permanent CO2 sequestration methods.

Sequestra's core technology mimics natural geological processes, accelerating the conversion of gaseous CO2 into stable, rock-like carbonate minerals. While nature takes millennia, sequestra's innovation drastically shortens this timeframe to mere hours, offering the potential to permanently capture up to 300 kg of CO2 per tonne of feedstock. This process not only provides a robust carbon storage solution but also transforms industrial residues, such as those from metallurgy, energy, and construction sectors, into valuable materials for applications like building components, thereby promoting material circularity and waste valorization.

A cornerstone of sequestra's operational strategy is its dedicated analytical laboratory. This facility is crucial for rapidly assessing the CO2 absorption potential of diverse mineral feedstocks and identifying viable economic applications for the resulting carbonated materials. To date, the company has conducted over 250 carbonation trials on various industrial materials, building an extensive dataset that informs the design and optimization of its industrial carbonation processes. This data-driven methodology significantly reduces development cycles, enabling faster progression from initial material screening to full-scale industrial deployment.

With the recent funding, sequestra plans to deploy its first modular, containerized mineralization unit by the end of 2027. This unit will enable industrial partners to directly convert CO2 emissions and process residues into stable carbonates at their source. The technology is particularly suited for industries generating by-products, including biomass ash producers, waste incineration facilities, and steel manufacturers, as well as entities with significant CO2 streams. The compact, modular design allows for seamless integration into existing industrial sites, effectively turning waste streams into valuable mineral products.

This development comes at a critical juncture for industrial decarbonization efforts. The global carbon capture, utilization, and storage (CCUS) market is projected for substantial growth, driven by stringent environmental regulations and corporate sustainability goals. Sequestra's mineralization approach offers a compelling alternative for industries seeking permanent, verifiable carbon removal solutions that also yield tangible material benefits.