Just Install - just-install - The stupid package installer for Windows.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
PDQ Deploy - Deploy software quickly with PDQ Deploy. It's simple to install just about anything to multiple computers on your network.
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Chocolatey - The sane way to manage software on Windows.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.