Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
JasperReports - JasperReports Server is a stand-alone and embeddable reporting server.
Anchor CMS - Free and lightweight blogging system
ManageEngine ADAudit - ManageEngine ADAudit is a real-time windows active directory auditing tool.
Textpattern - Textpattern is an elegant content management system that is free, open source software.
Pentaho - Pentaho is a Business Intelligence software company that offers Pentaho Business Analytics, a suite...