eXo Platform - Digital workplace solution
Yammer - Yammer is a leading enterprise social network used by more than 200,000 companies worldwide, including 85% of the Fortune 500, to get work done smarter and faster. Sign Up Today.
Basecamp - A simple and elegant project management system.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
Slack - A messaging app for teams who see through the Earth!
Communifire - Enterprise Social Collaboration Software