Seed · Climate Tech · Oslo, Norway · Founded 2021 · 21–23 employees
Carbon Crusher revolutionizes road construction by making carbon-negative roads using bio-based binders and recycled asphalt materials. The company replaces traditional bitumen with lignin-based biopolymers from paper industry waste, creating roads that sequester 50-150 tonnes of CO2 per mile while being stronger and more durable. Founded by experienced entrepreneurs including former McKinsey partner Haakon Brunell and serial founder Hans Arne Flåto, the company graduated from Y Combinator's Winter 2022 batch and raised a $5M seed round from notable investors including Lowercarbon Capital and Climate Capital. Their technology offers 20% cost savings while providing roads that last 15-20 years with reduced maintenance needs.