Redmine is a very popular, open source, project management software. Written using the Ruby on Rails framework, it is cross-platform and cross-database. Using this software you can
Sugar enables organizations to organize, populate, and maintain information efficiently on all aspects of their customer relationships. It provides integrated management of corporate information on customer accounts and contacts, sales leads and opportunities, plus activities such as calls, meetings, and assigned tasks. The system seamlessly blends all the functions required to manage information on many aspects of your business into an intuitive and user-friendly graphical interface. The Sugar application is available in five different editions, each with additional functionality. Sugar Community Edition (open source, free) is the base level edition, with Sugar Professional, Sugar Corporate, Sugar Enterprise, and Sugar Ultimate, each adding more capabilities.
Pentaho's modern, simplified, and interactive approach empowers business users to access, discover and blend any data types regardless of their size. With a full spectrum of increasingly advanced analytics tools, from basic reports to predictive modeling, users can help themselves to analyze and visualize data across multiple measures and dimensions without being dependent on IT.
Odoo is a suite of open-source business apps. Odoo was formerly known as OpenERP until May 2014. It was rebranded because version 8 of the software introduced apps including website builder, e-commerce, point of sale and business intelligence. The software conforms to standard expectations of ERP systems, while providing additional modules beyond the coverage of traditional ERP systems.