Zabbix - Track, record, alert and visualize performance and availability of IT resources
SolVPS - SolVPS deliver the on-demand cloud hosting solutions including premium VPS hosting and cloud web hosting for the small business.
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.
XenoNode - XenoNode is one of the leading cloud solutions providers that have employed the best cloud services providers to ensure the quality performance all with peace of mind at very affordable pricing.
Prometheus - An open-source systems monitoring and alerting toolkit.
RamNode - High Performance SSD and SSD-Cached VPSs