Green, Open, Efficient - this is the motto of Cloud&Heat Technologies, a Dresden-based cloud service and technology provider. With its vision of holistic, open and sustainable solutions, the company develops and operates scalable digital infrastructures. It specifically focusses on open source software, including for instance OpenStack, the open source standard for cloud platforms, in order to bring more transparency to the cloud market. The Dresden-based company is also endeavouring to resolve the conflict between the rapidly growing demand for computing power, e.g. in the areas of deep and machine learning, and sustainability with the help of innovative technologies (use of water-cooled servers and reuse of server waste heat), thereby improving the carbon footprint across all sectors. More information can be found at www.cloudandheat.com.