IXI Limited
| Company type | Private | 
|---|---|
| Industry | Computer software | 
| Founded | 1987 | 
| Fate | Acquired by SCO in February 1993 | 
| Headquarters | Cambridge, United Kingdom | 
| Key people | Ray Anderson | 
| Products | Windowing software | 
| Revenue | $6 million (1992) | 
| Number of employees | 50 (1992) | 
IXI Limited was a British software company that developed and marketed windowing products for Unix, supporting all the popular Unix platforms of the time. Founded in 1987, it was based in Cambridge. The product it was most known for was X.desktop, a desktop environment graphical user interface built on the X Window System. IXI was acquired by the Santa Cruz Operation (SCO) in February 1993.