Brimstone is on a mission to decarbonize the cement industry. The $1 trillion cement market is responsible for 7.5% of carbon emissions annually, with a greenhouse gas impact just behind cars. Founded in 2019, Brimstone developed a breakthrough carbon-negative process that produces the exact same cement and supplementary cementitious materials used today. These materials have the same quality and performance builders have trusted for over 150 years. The key difference: on net, their process takes carbon dioxide out of the air instead of putting it in.