The growing influence and importance of OpenStack in the Cloud Computing market is undisputed. And the enormous support of hundreds of well known brands as well as a thriving community is no coincidence. The opportunity of shaping cloud infrastructure with this kind of flexibility is special. The Deutsche Telekom started supporting, promoting and working with this important initiative in 2012. The result of this collaboration is a perfect combination using the benefits of both sides. A multinational, flexible, affordable and secure public cloud: The OpenTelekomCloud - a unique offering throughout the cloud computing market that is pushing the boundaries of a large-scale public cloud helping to tighten OpenStack as Open Source Cloud Standard.