Open-source software is not for businesses who want out-of-the-box complete applications, but it makes sense for companies that want to tailor every aspect of the CRM experience from the ground up.
CRM buyers might have very few choices were it not for open-source applications. The CRM field is dominated by huge players such as Oracle Corp. and SAP, and the open-source model is perhaps the easiest way into the CRM market for new companies. Open-source CRM projects have been proliferating; SourceForge Inc. lists 369 active open-source CRM projects. The following 10 open-source CRM solutions have risen to the top of the list.
Intelestream Inc says
I also would add intelecrm, a web based open source application. Take a look by visiting intelestream web page, offers a rich feature set that our team built after years of developing open source CRM customizations for major companies.