Google Contacts - Google Contacts is Google's contact management tool that is available in its free email service Gmail, as a standalone service, and as a part of Google's business-oriented suite of web apps Google Apps.
Egnyte - Enterprise File Sharing
FullContact Card Reader - Automagically scan biz cards into LinkedIn/Gmail contacts
ManageEngine ADAudit - ManageEngine ADAudit is a real-time windows active directory auditing tool.
Nextcloud Contacts - The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server.
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.