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Brimstone

Brimstone produces decarbonized cement and supplementary cementitious materials from common rock.

Oakland, CA, US🇺🇸
Founded
2019
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Latest News About Brimstone

Amazon Signs Deal for Low Carbon Cement with Brimstone

ESG Today

Amazon Signs Deal for Low Carbon Cement with Brimstone

ESG Today reports Amazon signed an offtake deal for low-carbon cement volumes with Brimstone.

Aug 6, 2025

IDP selects Brimstone for transformational $189M federal investment

Brimstone

IDP selects Brimstone for transformational $189M federal investment

Brimstone announces selection by the Industrial Demonstrations Program for a $189 million federal investment in its first commercial plant.

Mar 25, 2024

Brimstone Named Fifth in TIME’s America’s Top GreenTech Companies 2024

TIME

Brimstone Named Fifth in TIME’s America’s Top GreenTech Companies 2024

TIME ranked Brimstone fifth among America’s top GreenTech companies and described its zero-carbon cement innovation and Oakland base.

Mar 5, 2024

Brimstone Achieves ASTM Certification for Decarbonized Portland Cement

DCVC

Brimstone Achieves ASTM Certification for Decarbonized Portland Cement

Brimstone announced third-party certification that its cement meets ASTM C150 standards for ordinary portland cement and described its...

Jul 13, 2023

Brimstone Raises $55M Series A to Build Pilot Plant, Grow Team

Activate

Brimstone Raises $55M Series A to Build Pilot Plant, Grow Team

Activate reported Brimstone’s $55 million Series A, which supported pilot-plant construction and team growth for its lower-carbon ordinary...

May 5, 2022

Carbon-free cement: Breakthrough, DCVC put $55 million into Brimstone

CNBC

Carbon-free cement: Breakthrough, DCVC put $55 million into Brimstone

CNBC reports Brimstone raised a $55 million Series A co-led by Breakthrough Energy Ventures and DCVC to scale its carbon-free cement...

Apr 28, 2022