Google’s consumer services (Search, Mail, etc.) are built on an impressive infrastructure that features some of the world’s best data centers, analytics, machine learning, and image-recognition technology. Before Google acquired Diane Greene’s startup in 2015—and then put her in charge of cloud computing—the search giant had not prioritized using its resources to service other companies. Greene coalesced disparate teams into a single organization to showcase how Google’s tech can help other businesses. Ocado, the world's largest online grocery store, uses Google Cloud's machine learning to improve its customer service; Airbus, the airspace company, and Planet Labs, a data-analytics startup, use Google Cloud to store and process satellite images. “When Google deploys a new service, it dispatches reliability engineers to make sure it never goes down,” Greene says. “We realized we should offer customers the same thing.” These efforts have helped turn Cloud into Google’s fastest-growing division.