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a climate-positive world is built on a carbon-negative foundation

Brimstone was born from a mission to decarbonize one of the most produced materials on the planet: cement

Our founders, Cody Finke and Hugo Leandri, met at Caltech, where they began working on solutions to some of the world’s most overlooked environmental problems. After moving to 
the Bay Area, they discovered a way to make the world's first carbon-negative portland cement. Now, we are focused on scaling our solution. We're on a mission to transform the cement industry from climate problem to climate hero. 

proudly backed by leaders in climate tech

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