CodeGuard - CodeGuard provides website backup, monitoring, and malware remediation services to small and medium businesses.
Datadog - See metrics from all of your apps, tools & services in one place with Datadog's cloud monitoring as a service solution. Try it for free.
Amazon AWS - Amazon Web Services offers reliable, scalable, and inexpensive cloud computing services. Free to join, pay only for what you use.
NewRelic - New Relic is a Software Analytics company that makes sense of billions of metrics across millions of apps. We help the people who build modern software understand the stories their data is trying to tell them.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
PagerDuty - Cloud based monitoring service