Ticket Tailor - Ticket Tailor is an easy-to-use event ticketing platform that allows event organizers of all shapes and sizes to sell tickets online.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
pretix - pretix helps you to sell tickets for your event in an easy way. It supports multi-lingual events and provides a wide range of features
Chef - Automation for all of your technology. Overcome the complexity and rapidly ship your infrastructure and apps anywhere with automation.
Ticket Tribe - Sell tickets online with no fees per ticket
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.