Amazon helped popularize the field starting in 2006 and largely had commercial cloud computing to itself for years, an enormous advantage in an industry where rivals usually watch one another closely. At the moment, there is no contest: Amazon is dominant and might even be extending its lead. Microsoft ranks a distant No. 2 in cloud computing but hopes to pick up the slack with infrastructure-related services it sells through Azure, the name of its cloud service. Amazon executives have said they expect AWS to eventually rival the company's other businesses in size. The cloud business has been growing at about 40 percent a year, more than twice the rate of the overall company and many Wall Street analysts have been hoping for a spinoff.
As for Google, the cloud was barely mentioned in Google's earnings call. Nor did the search giant offer any cloud numbers, making it impossible to gauge how well it is doing. But the enthusiasm of Eric Schmidt, Google's executive chairman, was manifest when he spoke at an event for cloud software developers this week. "The entire world will be defined by smartphones, Android or Apple, a very fast network, and cloud computing," said Schmidt. "The space is very large, very vast, and no one is covering all of it."