I suspect (but don't have confirmation) that this includes Microsoft's SaaS prod...

_ondq on Sept 24, 2014 | parent | context | favorite | on: IBM Watson API

I suspect (but don't have confirmation) that this includes Microsoft's SaaS products like Exchange Online/O365, which are very successful.

I get the impression that Azure specifically as PaaS/IaaS, OTOH, is quite a bit less so. At least compared to AWS.