Prometheus - An open-source systems monitoring and alerting toolkit.

LogMeIn Central - LogMeIn Central is a comprehensive endpoint management software that easily helps IT professionals manage and monitor their organization’s endpoint infrastructure.

Nagios - Complete monitoring and alerting for servers, switches, applications, and services

Panda Security - Panda Security is an antivirus and cyber security solution.

StatsD - Simple daemon for easy stats aggregation.

ESET Endpoint Security - ESET internet security solutions deliver proactive, multi-layered protection, including antivirus, anti-phishing, exploit blocker and more, to protect the business from all known and emerging malware and threats.