Freeware - A Make replacement with a simple and high-level target language. It supports build variants, and several different compilers and tools.

Electric Cloud - A make replacement that distributes builds across multiple cluster machines for faster builds. Features automatic code dependency detection (and correction in some cases), and plug-compatibility with GNU Make and Nmake.

Freeware - A make replacement featuring dependency scanning, viewpaths, distributed rsh execution, cached derived files, variant builds, conditional directives, and an Odin rule language.

Freeware - A make program featuring pattern-matched viewpaths, parallel threads, multiple platforms, conditional directives, makefile regeneration, and an advanced Make description language.

Freeware - A make replacement, written in Python featuring global dependencies view, extensible dependency scanning, parallel build threads, multidirectory builds, automatic cleaning and extensibility via Python classes.

Open Source - A software build system implemented on top of GNU make featuring position-independent non-recursive multi-makefile include-based structure, complete inter-project dependency tracking, and extensible translator framework.

Freeware - A make replacement featuring file fingerprints, dependency scanning, viewpathing, parallel threads, distributed rsh builds, cross compiling, and build actions in the "cook" description language.

Freeware - Not Ant is like Ant, but uses C# and .NET technologies.

Open Source - A Make replacement written in Perl featuring hierarchical builds, dependency graph node triggers, no built in rules, PBS/Perl syntax for PBSfiles, a Perl API for the system, and shell or Perl build actions.

Freeware - A tiny command-line prefix tool that can track dependencies for a file automatically without the need for a Makefile.