GreenJams

GreenJams is an Indian climate-tech startup that produces Agrocrete, a carbon-negative building block made from upcycled agricultural residues and industrial by-products using alkali-activated geopolymer chemistry. Agrocrete delivers 3.5x higher thermal insulation, 2.5x faster masonry, and 50% lower construction costs compared to conventional clay bricks, while actively sequestering carbon from the atmosphere. The company also produces BINDR, an ultra-low carbon alternative to cement, and is trusted by over 200 companies across India.