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.
StresStimulus - Load testing tool for websites and mobile that works with hard-to-test applications.
Blackfire.io - Blackfire empowers all PHP developers and IT/Ops to continuously verify and improve their app’s performance, throughout its lifecycle, by getting the right information at the right moment.
OctoPerf - OctoPerf is a SaaS load testing solution, based on JMeter.
Dynatrace Load - Dynatrace Load lets you test the performance of web and mobile applications with the realism of load generation from the cloud.
SmartMeter.io - Performance Testing with Enterprise-Level Features with a familiar jMeter interface