'Enormous potential to scale': IBB Ventures backs CO2-trapping concrete startup
16 Aug 2026
23:06
Berlin-based IBB Ventures puts its money on a deep-tech spinout.
"Permanently binding CO2 in building materials holds enormous potential to scale", said investment director Stephan Schulze.
"Permanently binding CO2 in building materials holds enormous potential to scale", said investment director Stephan Schulze.
IBB Ventures is a Berlin-based venture capital fund established in 1997 as part of the state-backed Investitionsbank Berlin. Managing approximately €140 million across three specialised funds, it invests in early-stage startups at the pre-seed to Series A stage, focusing on technology (healthcare, industrial tech, and software), creative industries, and impact ventures tackling social and environmental challenges.
Now, the VC firm has backed the Berlin startup Kalz GmbH, who has developed a technology to remove CO2 from industrial emissions and permanently store it in concrete.