Not much. Uber largely runs its own data centers with some multi cloud. Travis Kalanick was paranoid that Uber would end up competing with Amazon or Google even

Not much. Uber largely runs its own data centers with some multi cloud. Travis Kalanick was paranoid that Uber would end up competing with Amazon or Google eventually and did not want to be beholden to them for tech infrastructure. I believe Lyft is entirely on AWS but they are much smaller overall because they’re only in a limited number of markets.