Open Source - A-A-P is an experimental make tool. Features include a special AAP makefile syntax, automated dependency support for Unix C programs, and a GUI interface written in Python.

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.

Opus - A multiplatform make featuring dependency scanning, suffix-specific viewpaths, extended command and macro modifiers, CPP preprocessor directives, and iterators in the Make rule language.

Freeware - A make replacement like Cons, written in Python and featuring MD5 file signatures, dependency scanning, parallel build threads, viewpathing, multidirectory builds, and Python build actions.

Freeware - A very simple make replacement that uses an XML file (reminiscent of Ant) to specify files and actions to be executed on those files.