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.
CloudFlare - Cloudflare is a global network designed to make everything you connect to the Internet secure, private, fast, and reliable.
Pandora FMS - Pandora FMS: Opensource monitoring software
Paessler PRTG - An advanced network monitoring solution to monitor network up/downtime, traffic and usage.
OpenNMS - Project home page of OpenNMS - a java based network managememnt platform developed under the Open Source model
MRTG - MRTG (or Multi Router Traffic Grapher) is an open-source network monitoring tool.