Sitecake - Drag and drop CMS for HTML websites. It's flat file CMS so it's pretty fast.
Egnyte - Enterprise File Sharing
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.
StealthAUDIT Management Platform - STEALTHbits Technologies is a leader in the Microsoft Infrastructure and Application Management space, with solutions for Data Access Governance, Identity Access Management, Active Directory, and more.