NewRelic - New Relic is a Software Analytics company that makes sense of billions of metrics across millions of apps. We help the people who build modern software understand the stories their data is trying to tell them.

ServerSuit - ServerSuit is a browser based program that enables remote Linux administration, monitoring, website hosting, and server setup automation.

Dynatrace Ruxit - All-in-One Application Performance Monitoring

RedGate SQL Monitor - SQL Monitor helps you and your team find issues – before they become problems

DareBoost - DareBoost is an online tool to test, analyze and monitor your website: speed, SEO, quality, security. All you need for website optimization in a single service.

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