1. TeamCity is a continuous integration and build management system.

  2. Semaphore is a fully managed, high performance testing and deployment solution for your company. A Continuous Integration tool.

  3. Help out your favorite open source projects and become a better developer while doing it.

  4. Powerful tools for measuring and improving code quality for open- and closed-source development projects.

  5. 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.

  6. 24 Pull Requests is a little project to promote open source collaboration during December.

  7. Octopus is a friendly deployment automation tool for .NET developers.

  8. Code Climate provides automated code review for your apps, letting you fix quality and security issues before they hit production. We check every commit, branch and pull request for changes in quality and potential vulnerabilities.

  9. Pipeline-based CI system written in Go

  10. A Marketplace for Pull Requests

  11. Reflow is a software program that is designed to help musicians and composers write and store their own material. Reflow comes with several important features that make it a favorite of musicians... read more.

  12. Enterprise-scale Application Release Automation for any environment