Backblaze - Backblaze's remote backup automatically backs up your data to our secure datacenter.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
CrashPlan - CrashPlan for Small Business backup software offers the best way to back up and store business & enterprise data securely - offsite, onsite & online in the Cloud.
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.
ManageWP - ManageWP is a service for bloggers, site owners and web based companies helping them manage multiple WordPress sites from one dashboard.
Prometheus - An open-source systems monitoring and alerting toolkit.