Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Apache Maven - Apache Maven is a project comprehension and management software tool.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Apache Ant - Apache Ant is a Java library and command-line tool whose mission is to drive processes described in build files as targets and extension points dependent upon each other.
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.