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.
LogicMonitor - LogicMonitor is the SaaS performance monitoring platform for the world's best IT teams. Deploy Fast, Monitor More, Improve Ops.
Prometheus - An open-source systems monitoring and alerting toolkit.
Dynatrace - Cloud-based quality testing, performance monitoring and analytics for mobile apps and websites. Get started with Keynote today!
Icinga - Icinga is a fork of Nagios and is backward compatible.
Microsoft System Center - Microsoft System Center provides solutions to simplify the deployment, configuration, management, and monitoring of the infrastructure.