Datamatics TruBot - TruBot is an enterprise grade, multi-skilled bot programmed to enhance your enterprise’s productivity. It automates a range of simple as well as complex processes.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Automation Anywhere - Automation Anywhere Premier Revolutionizing automation software New Version: Supports Windows 8
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
RunDeck - RunDeck is an open source automation service with a web console, command line tools and a WebAPI.