Pentaho offers comprehensive data integration and analytics platform.
Open Source Integrated Hospital Information Management System
Create a webapp from an existing database in 30 seconds - Java/Groovy
The world's leading open source portal
RegTech / SupTech : Java EE , BI, PM & Report Designer
Opensource framework for creation bussiness web applications
Rediscover the Simplicity http://www.atgclabs.com/
jBilling is a web-based enterprise billing system.
dotCMS helps enterprises create, manage and deliver content anywhere.