Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
easyCIS - easyCIS is most suitable for teams that need to master the problems of build automation.
JetBrains TeamCity - TeamCity is a continuous integration and build management system.
Continua CI - Continua CI is an affordable, scaleable Continous Integration Server.
Bamboo - Bamboo is a continuous integration and deployment tool that ties automated builds, tests and releases together in a single workflow.
GoCD - With its parallel and sequential execution, GoCD can easily configure dependencies for fast feedback and on-demand deployment. GoCD's Value Stream Map lets you track a change from commit to deploy at a glance.