Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.
Nifty - Manage projects, work, and communications in one place.
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.