SwearJar - A Slack bot that donates money to charity when you curse
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Pledgeling - The simple way to build charitable giving into your business
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Give with Ella - Restoring trust in charity by forcing transparency
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.