In our 38-criteria evaluation of application release automation (ARA) providers, we identified the nine most significant — Automic Software, BMC Software, CA Technologies, Clarive, Electric Cloud, Flexagon, IBM, Serena Software, and XebiaLabs — and researched, analyzed, and scored them. We've focused on core documented features, such as modeling, deploying, and visualizing pipelines, along with the vendors' ability to match a strategy to these features. This evaluation shows how each provider measures up and helps infrastructure and operations (I&O) professionals make the right choice for their organizations.