EasyStack is a leading OpenStack cloud platform and services provider, founded in February 2014, core member came from IBM China research and development center. EasyStack provides an open, stable and reliable, high performance of the cloud computing services for enterprise customers based on OpenStack. EasyStack is the OpenStack startup company with the largest amount of large-scale enterprise references in China, EasyStack delivers OpenStack platform and service for Postal Savings Bank of China, Rural Creadit Banks Funds Clearing Center, Lenovo, State Grid Corporation of China, ZheJiang Provincial Energy Group Company LTD, Tsinghua University, Soochow Securities, Great Wall Broadband Network, TCL, Tianhe National Supercomputer Center etc in total more than 80 references. EasyStack servers industries including FSI, SP, GOV, Power, R&E and internet finance, e-commerce, big data etc. We adhere to open source philosophy and continue contributing community core projects as one of the top contributors of Asia in serveral OpenStack versions. And developed the first Oslo core reviewer in startup company in China. In May, 2015, EasyStack completed $16 million Serie B of funding, which is the largest one serie funding in open source industry of China.