GitLab - Create, review and deploy code together with GitLab open source git repo management software | GitLab
Octopus Deploy - Octopus is a friendly deployment automation tool for .NET developers.
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.
Codeship - Codeship is a fast and secure hosted Continuous Delivery platform that scales with your needs.
GoCD - Open source continuous delivery tool allows for advanced workflow modeling and dependencies management.