Wrike is an online project management software that gives you full visibility and control over tasks.

eXo Platform is an open source, standard-based, Enterprise Social Collaboration Platform.

HumHub is a free social network software and framework built to give you the tools to make teamwork easy and successful.

Hubgets provides chat, voice and video turning team communication.

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

Bitrix24 is a free (for small businesses) social enterprise platform.

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…