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

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

  3. Focus on writing code. Let Travis CI take care of running your tests and deploying your apps.

  4. Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.

  5. TeamCity is an ultimate Continuous Integration tool for professionals

  6. Buddy is a Continuous Integration service. It supports GitHub, Bitbucket, and Gitlab projects. Automate the lifecycle of web & Docker apps: Build, Test & Deploy.

  7. Microsoft Team Foundation Server is an integrated server suite of developer tools for professional teams.

  8. Push. Build. Deploy! Instantly build and ship code anywhere in one consistent process for your entire team.

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

  10. 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

  11. Bamboo is a continuous integration and deployment tool that ties automated builds, tests and releases together in a single workflow.

  12. #1 Continuous Delivery service for Windows