Cocoon Carbon Closes $15M Series A to Address Concrete Industry Supply Gap

Cocoon Carbon has secured $15 million in a Series A funding round co-led by 2150 and Brick & Mortar Ventures to develop a scalable supply of supplementary cementitious materials (SCMs). The investment will support the deployment of Cocoon's first commercial demonstration facility in the U.S. and aims to address a critical supply-demand gap in the concrete industry as SCM demand grows by 6-7% annually. Cocoon's technology converts steel slag from electric arc furnaces into a low-cost cement replacement, potentially reducing concrete's carbon intensity by up to 40%.

Published Mar 20, 2026

Cocoon Carbon has raised $15 million in Series A funding, co-led by 2150 and Brick & Mortar Ventures, to create a scalable supply of supplementary cementitious materials (SCMs) for the concrete industry. The funds will facilitate the deployment of Cocoon's first commercial demonstration facility in the U.S., addressing an SCM supply gap as demand grows at 6-7% yearly.

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Cocoon's process converts steel slag from electric arc furnaces into a cost-competitive cement alternative, reducing carbon intensity by up to 40%. The company plans to expand its operations across over 50 steel plants in the U.S. and Europe.