Freeware, public-domain, shareware, and GPL software:

GNU CVS
A replacement for RCS. CVS Home is a CVS community site. Provides documentation, FAQs, projects, tools, mailing lists and news.

PRCS
A front end for tools like CVS.

Aegis
A transaction-based software configuration management system.

Commercial software:

Rational Software
Makers of Clearcase.

AccuRev Inc.
Makers of AccuRev. Client-server, runs on many Unix versions, Linux, NT, Windows 2000. Uses a parallel development model, has command line and GUI interfaces.

BitKeeper
Is a scalable configuration management system, supporting globally distributed development, disconnected operation, compressed repositories, change sets, and named lines of development (branches). Runs on most Linux and Unix varieties, Windows98/NT/W2K/ME.

Perforce Software
Makers of Perforce, the Fast Software Configuration Management System.

PVCS
From Merant, runs on HP-UX, AIX. Solaris, SCO, Digital, and many more Unix versions. It's an integrated suite of products for version management, configuration, bug tracking, process and workflow. You can also buy just the pieces you want.

Seapine Software
Makers of Surround SCM to manage your software source code changes. Command-line and GUI support on Windows, Linux, Solaris, and Mac OS X, a client/server architecture, integration into Visual Studio, and two-way integration into TestTrack Pro.

SourceGear
Makers of SourceOffSite, allows fast and secure read/write access to a centralized Visual SourceSafe database via any TCP/IP connection. Clients for Solaris, Linux, Windows.

Telelogic AB
Makers of Synergy change and configuration management software, DOORS/ERS requirements management system and Tau visual software development environment for software analysis, design and testing.

Quotes & Statistics

'Simply put, the best way I know how to establish and maintain a healthy, competitive culture is to partner with your people ‚ through shared objectives and a common strategy.'

- Michael Dell, Direct from Dell