A climate positive world is built on a carbon negative foundation


Brimstone was born from a mission to decarbonize one of the world's most produced materials in the world: cement. Our founders, Cody Finke and Hugo Leandri met at Caltech where they started working
on 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. 


Backed by leading climate investors

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