Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development

Rudder - Rudder is an easy to use, web-driven, role-based solution for Continuous Automation and Compliance.

CircleCI - CircleCI gives web developers powerful Continuous Integration and Deployment with easy setup and maintenance.

Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine

Bitrise - Tens of thousands of agencies, startups and enterprise companies with mobile apps - including Runkeeper, Grindr, Duolingo and more - use Bitrise to automate their way to increased productivity & speed

Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.