SAP Jam - Encourage and facilitate collaboration in the cloud – with our enterprise social network solution, SAP Jam.
EssentialPIM - EssentialPIM is a free Personal Information Manager that keeps up with the times and lets you manage appointments, tasks, notes, contacts, password entries and email messages across multiple devices and cloud applications.
MS SharePoint - Share, organize, and discover information with Microsoft SharePoint. Learn about SharePoint Online, OneDrive for Business, and Apps for SharePoint
Todo.txt - Track your tasks and projects in a plain text file, todo.txt. A todo.
Beekeeper - The #1 All-in-One communication & productivity platform used for reaching and connecting every individual in an organization.
Bitrix24 - Bitrix24 is a free (for small businesses) social enterprise platform. It is a united work space which handles the many aspects of daily operations and tasks. Create your own social intranet in minutes!