Rackspace

Founded in 1998, Rackspace is a managed cloud and IT services provider specializing in designing, operating, and optimizing hybrid cloud, private cloud, and multi-cloud environments. Rackspace supports AWS, Azure, Google Cloud, VMware, and OpenStack, providing ongoing management, monitoring, cloud migrations, security hardening, and compliance. Their business model is service-heavy rather than raw compute-heavy: they focus on management, consulting, and operations across clouds, rather than being a primary IaaS vendor. Rackspace targets enterprises needing expert cloud operation, cost control, workload guidance, and outsourced cloud engineering to improve performance, governance, and security across complex infrastructure stacks.