The Dude - MikroTik is a Latvian company which was founded in 1996 to develop routers and wireless ISP systems. MikroTik now provides hardware and software for Internet connectivity in most of the countries around the world.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Pandora FMS - Pandora FMS: Opensource monitoring software
Jenkins - Jenkins is an open-source continuous integration server with 300+ plugins to support all kinds of software development
OpenNMS - Project home page of OpenNMS - a java based network managememnt platform developed under the Open Source model
Puppet Enterprise - Get started with Puppet Enterprise, or upgrade or expand.