Apache JMeter - Apache JMeter™.
Zendesk - Zendesk is a beautiful, lightweight help-desk solution.
Simple Analytics - The privacy-first Google Analytics alternative located in Europe.
Freshdesk - Freshdesk is a cloud-based customer support software that lets you support customers through traditional channels like phone and email, social channels like Facebook and Twitter, and your own branded community
Qubit - Qubit is a web personalization platform founded by former Google workers, using innovative technology to collect, store, process, and output data to optimize consumers' experiences on the web. Read more about Qubit.
HelpScout - Help Scout is a simple, straightforward way to provide excellent support