Citrix Systems, Inc. is an American multinational software company founded in 1989 that provides server, application and desktop virtualization, networking, software-as-a-service, and cloud computing technologies. The company began by developing remote access products for Microsoft operating systems. It licensed source code from Microsoft and has been in partnership with the company throughout its history. Citrix came to prominence in the 1990s as a leader in thin client technology. Through several acquisitions in the mid-2000s, the company expanded into server and desktop virtualization, as well as cloud and Infrastructure as a Service.
Red Hat, Inc. is an American multinational software company providing open-source software products to the enterprise community. Founded in 1993, Red Hat has its corporate headquarters in Raleigh, North Carolina, with satellite offices worldwide. Red Hat has become associated to a large extent with its enterprise operating system Red Hat Enterprise Linux and with the acquisition of open-source enterprise middleware vendor JBoss. Red Hat also offers Red Hat Enterprise Virtualization, an enterprise virtualization product. Red Hat provides storage, operating system platforms, middleware, applications, management products, and support, training, and consulting services.