Which company owns the AWS cloud-computing business?

Amazon owns the AWS cloud-computing business.

Amazon Web Services, usually called AWS, is Amazon's cloud-computing subsidiary. It provides on-demand infrastructure and software services, including storage, databases, computing, content delivery, and machine-learning tools. AWS began offering services publicly in 2006.

The business grew from Amazon's effort to build reusable internal technology infrastructure for its online retail operations. By renting that infrastructure to outside customers, Amazon created a major enterprise-services business serving startups, governments, universities, and large corporations.

AWS is often compared with Microsoft Azure and Google Cloud. Those companies compete in the same market, but AWS is part of Amazon. Amazon's other major activities include online retail, advertising, logistics, digital media, and the Prime subscription program, so its market value reflects far more than cloud services alone.