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.
ANTS Performance Profiler - Speed up the performance of your application with ANTS Performance Profiler, for .NET code analysis.
AppDynamics - Get real-time insight from your apps using Application Performance Management—how they’re being used, how they’re performing, where they need help.
Deleaker - Deleaker finds memory leaks, GDI leaks, leaks of handles, USER objects and others. Available both as a Visual C++ extension and standalone application.
Zabbix - Track, record, alert and visualize performance and availability of IT resources
Relyze WonderLeak - WonderLeak is a native Windows allocation profiler, designed from the ground up to be blazingly fast and handle profiling large multi threaded applications with ease.