Dolibarr is a modular software (you have the functions you want) to management companies, freelancers or foundations. It is an OpenSource project based on a WAMP or LAMP server (Apache, Mysql, PHP). Dolibarr is designed to provide simplicity:
* Simple to install (with DoliWamp the auto-installer for Windows, DoliBuntu, the auto-installer for Ubuntu/Debian or DoliMamp the auto-installer for Mac OS X, for those who do not know how to install an Apache server, MySQL, PHP. A web assistant is available for others, no additional components required, no Java, no Python, no Perl, no PEARL PHP modules, no other exotic library). * Simple to use (any module can be disabled to removed not required features, only the permissions features can not be disabled). * Simple for development (no heavy frameworks). Dolibarr, developed in PHP object, incorporates its own natural code, allowing every developer to be immediately operational without knowledge other than PHP).
All the features covered by this version are described on the website: http://www.dolibarr.org/features/