Fundraise Up - The New Standard for Online Giving
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Ledge - Lending platform for families and friends
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
Leetchi - Create a group money pot for free
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.