Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
IBM UrbanCode Release - IBM UrbanCode Release is a collaborative release management tool.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
ConfigCat - ConfigCat is a developer-centric feature flag service with unlimited team size, awesome support, and a reasonable price tag.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Octopus Deploy - Octopus is a friendly deployment automation tool for .NET developers.