LogMeIn Central - LogMeIn Central is a comprehensive endpoint management software that easily helps IT professionals manage and monitor their organization’s endpoint infrastructure.
Statsignal - Statsignal is a simple and cost-effective way to monitor your website or server and publish a status page of your system.
Panda Security - Panda Security is an antivirus and cyber security solution.
OnlineOrNot - Uptime monitoring for software teams (even teams of one).
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.
Site monitoring - Free open-source website monitoring software, easy to set up and use for monitoring web sites.