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.
PagerDuty - Cloud based monitoring service
Pandora FMS - Pandora FMS: Opensource monitoring software
OpsGenie - Alerting and On-Call Management for Dev&Ops Teams
cStatus - Monitor and scan a network.
Squadcast - Automate incident response, reduce downtime and enhance your tech teams’ delivery with a unified platform.