Zabbix - Track, record, alert and visualize performance and availability of IT resources
CloudCruiser - Cloud Cruiser delivers cloud cost management and cloud spending management for AWS, Azure, and Google Cloud Platform.
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.
CliQr - CliQr is a cloud app management platform enabling companies to manage and secure apps onto public, private or hybrid clouds.
Prometheus - An open-source systems monitoring and alerting toolkit.
Gravitant - Gravitant is a service providing company that works mostly with the cloud matrix and cloud system.