Amazon just released its latest financials for the quarter and Microsoft just released their results a few days ago.
Amazon does not report its cloud revenue separately (although they have no committed to do so in future releases) – AWS is categorized under “Other”. Amazon reported “Other” revenue of $5.6 billion for the year, up from $3.9 Billion.
Microsoft’s commercial cloud revenue is currently projected at $5.5 billion, making it a close second. In addition, Microsoft’s growth rate seems to be higher at 114% year over year.