How a hydrogen explosion led a teenage founder to become Sequoia’s first defense tech investment

As Sequoia Capital’s first defense tech investment, Mach Industries is an industry darling, raising over $80 million since its founding in 2023. Its founder, Ethan Thornton, now 21, began Mach as a teenage MIT student before dropping out to focus full-time on his startup. But a few months before landing a seed investment from Sequoia […]