Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Communifire - Enterprise Social Collaboration Software
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Workplace by Facebook - Connect everyone in your company and turn ideas into action.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
DigitalChalk - Online Training Software and Learning Management System (LMS)