BrowserStack

BrowserStack is a cloud-based platform founded in 2011 that enables developer teams to test websites and mobile applications across real browsers, operating systems, and devices without needing physical hardware. It offers both manual and automated testing, visual testing, accessibility validation, and deep integrations with tools like Selenium, Appium, and CI/CD pipelines. The platform supports thousands of real devices and browsers via its global infrastructure. 

The company was founded by Ritesh Arora and Nakul Aggarwal and is headquartered in Mumbai with offices in San Francisco, New York, and Ireland. It serves millions of developers and tens of thousands of teams, performing over a billion tests annually.