Zabbix - Track, record, alert and visualize performance and availability of IT resources
Vtiger Help Desk - Vtiger Help Desk provides multi-channel helpdesk solution.
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.
Hubspot Service Hub - HubSpot's customer service software makes supporting customers easy. Help your customers on the channels they prefer, while driving efficiency for your team.
Prometheus - An open-source systems monitoring and alerting toolkit.
Zendesk Suite - The complete Zendesk suite in one package