Citrix is a company which develops applications for IT virtualization, targeting Microsoft products. An example is Citrix XenApp.
Citrix is a company selling solutions to virtualize application infrastructure and helping to coordinate central IT requirements. Main areas are application virtualization, software-as-a-service, cloud-computing and networking. There is a huge variety they offer, like well-known Citrix XenApp or Citrix CloudPlatform.
They have a longtime partnership with Microsoft and developed much software to make Microsoft's software available in scalable needs.
The name is often used as a synonym not only for products from this company but as well as for virtualization solutions itself.
