Digital Cornerstone
| Formerly | 
 | 
|---|---|
| Company type | Semi-independent subsidiary | 
| Industry | Software | 
| Founded | August 2001 in city, country --> | 
| Founder | Michael Robertson | 
| Defunct | 2008 | 
| Fate | Acquired by Xandros, Inc | 
| Headquarters | San Diego, California, United States | 
Digital Cornerstone (formerly known as Lindows, Inc. (2001–2004) and Linspire, Inc. (2004–2008)) was a Linux and open source software company based in San Diego, California. It primarily targeted desktop computers with its flagship Linux distribution, Linspire. It was bought in 2008 by Xandros, Inc., a former competitor, and made a semi-independent subsidiary of the company.