LeggoChat - A channel or group based chat that is easily set up for casual, short, or serious discussions.
Done Hui - No need to switch between multiple pieces of software to get through the workday. CHATS: Communicate freely. CALENDAR: Know your team's availability, plan meetings. No more conflicts. TO-DOs: Stay on top of all projects. FILES: All files, one spot.
kompass - Kompass business directory: Access to more than 35 million companies in more than 70 countries. A unique tool to find new prospects and clients
Dialog Messenger - handy and feature-rich enterprise multi-device messenger available for server or cloud – Slack-like, but not Slack-limited
Ziggs - Smoothly Share Content Between Devices!
Keybase - Keybase will be a public directory of publicly auditable public keys.