Since many years, we use Easy Redmine, a fork of the open source project management system Redmine, for the management of our own solution projects. A very committed community is developing Redmine since 2006 as a comprehensive integrated project management solution that covers all aspects of project management such as project planning, budgets, issue tracking, knowledge management, CRM, roles and rights and many others and thus completely suits your project management processes.  Over the years, we gained a lot of experience regarding the possibilities of the tool that we are eager to share it with our customers, since open source software unfolds its strength only when really understood in depth and mastered.