SuiteCRM

SuiteCRM is a free and open source Customer Relationship Management application for servers. It is written in PHP. Open source CRM is often used as an alternative to proprietary CRM software from major corporations such as HubSpot, Salesforce and Microsoft Dynamics CRM applications. SuiteCRM is a software fork of the popular customer relationship management (CRM) system from SugarCRM. The SuiteCRM project started when SugarCRM decided to stop development of its open-source version. The base SuiteCRM application is built on the last open-source SugarCRM release. SuiteCRM is a greatly extended version of SugarCRM which also contains many additional security fixes that are not available in SugarCRM. It was originally released on October 21, 2013 as version 7.0, and provides upgrade paths for existing SugarCRM users.

SuiteCRM won the BOSSIE Award 2015 and BOSSIE Award 2016 for the world’s best Open Source CRM. Infoworld, the curators of the BOSSIE awards stated that “In little more than a year, SuiteCRM has inspired the community and emerged as a new leader in open source CRM.” The award had been won by SugarCRM for the previous 8 years.
The following modules are available in SuiteCRM: Accounts, Contacts, Opportunities, Leads, Calendar, Calls, Meetings, Email Templates, Emails, Tasks, Notes, Documents, Targets, Target Lists, Campaigns, Surveys, Bugs, Cases, Projects, Spots, Employees, PDF Templates, Knowledge Base, Sales, Workflows, Workflow Calculated Fields, Cases with Portal, Events, Reports, Reschedule.
Source: wikipedia.