'Established in 2009, Alibaba Cloud (alibabacloud.com), the digital technology and intelligence backbone of Alibaba Group, is among the world’s top three IaaS providers, according to Gartner. It is also the largest provider of public cloud services in China, according to IDC. Alibaba Cloud provides a comprehensive suite of cloud computing services to businesses worldwide, including merchants doing business on Alibaba Group marketplaces, start-ups, corporations and public services. Alibaba Cloud is the official Cloud Services Partner of the International Olympic Committee.'

Also some key facts here,

According to Gartner, Alibaba Cloud ranks 1st among cloud service providers in Asia Pacific, with a 19.6% market share. Source: Gartner Market Share: IT Services, Worldwide, 2019, 13 April 2020

No.1 in China According to IDC, Alibaba Cloud is solidly positioned as the No. 1 cloud computing service provider in China. Source：IDC China Public Cloud Services Tracker, 2019 Q3

According to Gartner, Alibaba Cloud ranks 3rd among cloud service providers in terms of market share in the world, being a leader among providers in emerging markets. Source: Gartner Market Share: IT Services, Worldwide, 2019, 13 April 2020