Co-reactive targets deep decarbonisation in cement
Düsseldorf-based climate-tech startup Co-reactive has raised €6.5 million in new funding to accelerate its mission to decarbonise the global cement industry, one of the largest industrial sources of CO₂ emissions worldwide.
The fresh capital will enable Co-reactive to move from pilot projects to industrial-scale deployment of its low-carbon cement technology, designed to significantly reduce the climate impact of concrete production without disrupting existing construction standards.
Why cement is a climate problem
The cement sector is responsible for an estimated 7–8% of global greenhouse gas emissions, driven both by the high-temperature clinker production process and the chemical release of CO₂ from limestone. As governments tighten climate regulations and investors push for credible net-zero strategies, pressure is mounting on building-materials producers to adopt scalable, cost-effective solutions.
Co-reactive focuses on technologies that cut the clinker content of cement and enable the use of alternative, reactive materials. By improving material efficiency and integrating with existing production lines, the company aims to offer a drop-in pathway to lower-emission concrete.
From lab innovation to industrial rollout
Scaling low-carbon cement solutions
With the new funding, Co-reactive plans to expand its engineering team, build out demonstration plants with industrial partners, and validate performance across a range of construction use cases. The company’s roadmap includes rigorous testing to meet global building codes and construction standards, a critical step for widespread adoption.
The startup is also expected to deepen collaborations with major cement manufacturers and infrastructure developers. By embedding its technology directly into existing supply chains, Co-reactive aims to help large emitters cut CO₂ at scale while maintaining cost competitiveness.
Positioning in the climate-tech landscape
The €6.5 million round underscores growing investor confidence in climate-tech solutions that address so-called “hard-to-abate” sectors such as cement, steel and chemicals. As carbon pricing, disclosure rules and green-finance frameworks tighten across Europe and beyond, demand is rising for technologies that deliver verifiable emissions reductions rather than offsets.
If successful, Co-reactive could become a key enabler of low-carbon construction, helping cities, developers and infrastructure owners align with global decarbonisation targets while continuing to build at scale.