Semaphore CI is a cloud CI/CD platform founded in 2012 in San Francisco, USA, known for being 10x faster with Docker-native builds and parallel testing.
CodeShip was CloudBees' cloud CI/CD service offering deep GitHub/Bitbucket integration for continuous integration and deployment; the product reached end-of-life in January 2026, and CloudBees recommends migrating to CloudBees Unify and other platforms.
Travis CI is a hosted CI service founded in Berlin in 2011 and one of the first to deeply integrate with GitHub, automating build and test via a single .travis.yml file, free for open source.