Synergy Research has published an analysis of the most recent quarterly financial reports from the leading cloud computing vendors, and it finds that Amazon Web Services (AWS) is "in a league of its own" with a 35 percent share of the infrastructure as a service (IaaS) business. AWS had $4.57 billion in revenue for the quarter, which exceeded Wall Street expectations and put the company on track to generate $18 billion this year from its cloud services. Microsoft reported that its cloud business is on a $20 billion annual run rate, but Synergy says most of Microsoft's cloud revenue is from software as a service (SaaS), not IaaS.
A separate report from Canalys finds that AWS's IaaS services are growing 40 percent per year, compared to 90 percent for Microsoft and 75 percent for Google. However, the report also noted that it is easier for Microsoft and Google to grow more quickly because they have less market share than Amazon.