iDempiere - iDempiere Business Suite ERP/CRM/SCM done the community way.
1CRM - 1CRM is an All-in-One CRM solution for sales, marketing, project and order management. Download 1CRM Free, and find out why it's right for your business.
DataNote ERP - DataNote ERP is a complete ERP solution built for multiple industries such as construction, engineering, food and beverages, metal processing, and healthcare, among others.
Pobuca Connect - Connect with your contacts.
PracticePanther - PracticePanther offers CRM, invoicing, time tracking and communication solutions for law firms.
Contact Boss - CRM database management tool for managing contacts