BrowserStack is a leading cloud-based cross-browser testing platform that enables developers and QA teams to test their websites and web applications on various browsers, operating systems, and devices. Founded in 2011 and headquartered in Mumbai, India, BrowserStack has over 500 employees and serves more than 25,000 customers in over 135 countries. The company has raised over $200 million in funding to date, with its latest Series B funding round in November 2020 valuing the company at $4 billion.

BrowserStack's platform provides a range of testing tools, including live testing, automated testing, and responsive testing, to ensure that websites and web applications work seamlessly across different platforms and screen sizes. It supports testing on over 2000 desktop and mobile browsers, including popular ones like Chrome, Firefox, Safari, and Internet Explorer. It also provides access to real mobile devices for testing, including iOS and Android devices.