A climate company building permanence into every pour.
We're a climate technology company accelerating the decarbonization of construction while delivering durable carbon removal at industrial scale. Our technology turns ordinary concrete into one of the planet's largest potential carbon sinks.
From first concept to real-world deployment.
- February 2025
Company founded
Zen Carbon was founded with a vision to position Kenya as a global leader in low-carbon concrete production and a mission to sequester tons of CO₂ by 2050 through scalable CO₂ mineralization in concrete.
- 2025
Proof of technology
We successfully demonstrated our carbon mineralization technology, validating its ability to permanently store CO₂ in concrete and confirming the technical feasibility of our solution.
- 2025
Laboratory validation
Independent laboratory testing verified the performance of our technology, including strength improvements, material quality, and permanent carbon storage.
- 2025
First low-carbon pathway in the global south
We established a practical pathway for scalable low-carbon concrete deployment in emerging markets, proving the model can work beyond traditional pilot environments.
- 2025
First industry deployment
We completed our first industry deployment at Flamingo Concrete, bringing the technology into a real production environment.
- 2026
Strategic partnerships
We expanded our network through partnerships with Co2 suppliers , strengthening our path from pilot to broader market adoption.
- Future
Global scaling
Our focus is to scale across major construction markets and accelerate permanent carbon removal through concrete at industrial level.
Engineered for permanence. Verified for the carbon market.
Our system pairs precision-metered CO₂ delivery with mix-design science and continuous MRV — so every cubic meter delivers measurable, permanent removal.
Carbon mineralization
CO₂ reacts with calcium hydroxide in cement, forming stable calcium carbonate crystals.
Concrete chemistry
Mineralization densifies microstructure, improving early strength and durability.
Permanence
Calcium carbonate is thermodynamically stable for 1,000+ years — geological timescales.
Verification
Per-batch mass balance, third-party audit, registry-grade MRV pipeline.
The most used material on Earth — now a carbon sink.
Engineers, chemists, operators — building the world's largest carbon sink.
Team photo
Our most Valuable and dedicated team
Our team brings together scientific, engineering, and commercial expertise to turn concrete into a durable carbon sink at industrial scale.
Andy Onyango
Chief Executive Officer
Leads the company's vision, strategy, and growth initiatives, driving the development and deployment of innovative carbon mineralization technologies across Africa.
Samuel Opiyo
Co-Founder
Leads the company's financial strategy, planning, and resource management while supporting technology development and innovation initiatives.
Edwin Mwangi
Co-Founder
Leads business development and strategic partnerships, working with industry stakeholders to accelerate the adoption of carbon removal and utilization technologies.
John Mutua
Concrete Chemistry Lead
Heads concrete materials research and product development, ensuring the performance, durability, and sustainability of low-carbon concrete products.