Shroud of Secrecy Cloaks Star Investor Behind Cognition, Ramp

Last month, Zach Dell, son of billionaire Michael Dell and cofounder of Base Power, a billion-dollar battery startup, was gabbing with podcaster David Senra when Senra asked him which of his investors have been the most helpful to him. Dell’s three-year-old company has many prominent backers, including Andreessen Horowitz, Thrive Capital and angel investor Elad Gil. Dell didn’t name any of them. “Honestly, our mutual friend Zach,” Dell said. The other Zach they were referring to was Zach...