Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!
iDempiere - iDempiere Business Suite ERP/CRM/SCM done the community way.
VOGSY - Professional service automation tool built on Google G Suite
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.
Office Timesheets - Professional Services Automation
PHC FX - PHC FX is a comprehensive solution that offers a wide range of functionality at any price.