Anturis - Anturis offers hosted server monitoring software (SaaS) for both Windows and Linux.
Egnyte - Enterprise File Sharing
Zohno Z-Term - The Easy-to-Use Active Directory User Termination Tool
ManageEngine ADAudit - ManageEngine ADAudit is a real-time windows active directory auditing tool.
NIXStats - SaaS monitoring tool for window/linux servers and websites. Think up-time robot but with more features.
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.