ManageEngine ADAudit - ManageEngine ADAudit is a real-time windows active directory auditing tool.
Google Drive - Access and sync your files anywhere
SolarWinds Access Rights Manager - SolarWinds Access Rights Manager provides provisioning, deprovisioning, and access rights auditing.
Dropbox - Online Sync and File Sharing
NetWrix Auditor - Configuration Auditing of IT Infrastructure
ShareFile - Secure file sharing and sync