In Germany, climate-tech start-up Co-reactive from North Rhine-Westphalia (NRW) has completed a seed financing round totaling €6.5 million. The capital will be used to scale the company’s CO₂ mineralization technology – which makes use of CO₂ and binds it permanently in high-performance construction materials – from prototype to industrial application.
The round is led by High-Tech Gründerfonds. In addition, NRW.Bank, HBG Ventures, AFI Ventures (the early-stage impact arm of Ventech), Evercurious VC and a network of experienced climate tech business angels are investing. The company also receives further support through grants such as the Federal Funding for Industry and Climate (BIK) from the German Federal Ministry for Economic Affairs and Energy (BMWE).
Co-reactive has developed a continuous process that converts CO₂ together with natural minerals such as olivine or metallurgical slags (EAF & BOF) into performance-enhancing, CO₂-negative supplementary cementitious materials (SCMs). These materials enable a significant reduction of the clinker content in cement and construction materials – and thus a substantial reduction of their CO₂ footprint. At the same time, they increase compressive strength and durability. The solution is designed as a drop-in technology and can be integrated into existing production processes.
