Мирантис 

Mirantis is the pure play OpenStack company, delivering all the software, services, training, and support needed for running OpenStack.

More customers rely on Mirantis than on any other company to get to production deployment of OpenStack at scale.

Mirantis is among the top three companies worldwide in contributing open source software to OpenStack, and has helped build and deploy some of the largest OpenStack clouds in the world, at companies such as Telstra, Cisco, Comcast, Ericsson, Shenzhen Stock Exchange, EMC and Symantec.