Kaseya Network Monitor - Intellipool Network Monitor has been renamed to Kaseya Network Monitor.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
ManageEngine AssetExplorer - ManageEngine AssetExplorer is a web-based IT Asset Management software that helps you monitor and manage assets in your network.
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.
Jira Service Desk - IT service desk and customer service software by Jira Service Desk. Powerful ticketing system used by 25,000+ organizations. Try it free today.
Prometheus - An open-source systems monitoring and alerting toolkit.