Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.
Octopus Deploy - Octopus is a friendly deployment automation tool for .NET developers.
Travis CI - Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.
XL Deploy - Enterprise-scale Application Release Automation for any environment
Red Hat Ansible - Red Hat Ansible Automation Platform comes as an extensive foundation for operating and building automation across an organization.