Mattermost is an open source, private cloud Slack-alternative, Workplace messaging for web, PCs and phones. MIT-licensed.

Tresorit is an online cloud storage service based in Switzerland and Hungary that emphasizes enhanced security and data encryption for Businesses.

ChatSecure is a messaging application for iOS which allows OTR and OMEMO encryption for the XMPP protocol.

Hibox provides task management, business chat and video calls.

Smartsheet is a software as a service (SaaS) application for collaboration and work management.

Grape is an REST-like API framework for Ruby. It's designed to run on Rack or complement existing web application frameworks such as Rails and Sinatra by prov…

Wire is a cross-platform, encrypted instant messaging client created by Wire Swiss. It is available for iOS, Android, Linux, Windows, macOS and Web browser cl…

HipChat is a web service for internal private online chat and instant messaging.

Voxeet is VoIP web conferencing software that uses 3D high definition voice technology to produce immersive sound.

Qiscus provide everything you need to power up your app with chats.

Flock is a communication app for teams. Packed with tons of productivity features, Flock drives efficiency and boosts speed of execution.

Wickr is an instant messenger application.