SuiteCRM provides a best in class Relationship Management system that caters for any business from a single user through to large corporations.

Having used SuiteCRM at various stages for clients and now as our in-house system of choice, we recommend SuiteCRM.

Specifically, SuiteCRM provides for close integration with UniPhi Project Management solutions and provides solid base to support your business requirements.

SuiteCRM is open source and forked from the last open source release of SugarCRM. It is available for both Linux and Windows server platforms.

Read more at the SuiteCRM organisation site.