Better SCM Initiative : Perforce


Homepage of Perforce


Perforce is a centralized, commercial (non-free) solution for version control. It is very fast, very stable and robust, scales very well, and has a good reputation. It requires an annual per-seat licensing, but is also available for interested open-source developers under a gratis license.

(If you're looking for something open-source which is more or less equivalent, then look at Subversion.)