An enterprise-class CRM and more!
Open source ERP and CRM web software for business
The most affordable CRM system according to Capterra
Lighweight CRM, easy to use Kickstarter for web based ERP
weberp's responsive mobile optimized version with HRMS and Payroll
Web based open source ERP
dotpms is fork of dotproject including all modules and language locale
Total Business Information System (TBIS)
A trading platform including ERP, CRM, and accounting