Amazon Web Services

Amazon Web Services (AWS) has dominated the Cloud computing market since 2006, and its cloud computing systems power hundreds of thousands of businesses of all sizes in 190 countries. Its scalability, reliability, and cost-effectiveness make AWS the world leader in cloud computing technology.



Microsoft Azure

Microsoft’s Azure cloud is the platform of choice for ninety percent of Fortune 500 companies, with a worldwide network of datacenters, comprehensive compliance coverage, and innovative application development support.



Alibaba Cloud

One of the leading Cloud companies in the world and China's largest, with over two million customers worldwide, Alibaba Cloud offers a comprehensive array of services and technologies over its advanced global network for businesses of all sizes.

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OpenStack is a free and open-source software platform for cloud computing, mostly deployed as infrastructure-as-a-service (IaaS), whereby virtual servers and other resources are made available to customers. It began in 2010 as a joint project of Rackspace Hosting and NASA. Major clients include Bloomberg, CERN, and the Volkswagen group.