Take a look here: https://github.com/facebook/react/wiki/sites-using-react https://github.com/facebook/react/wiki/sites-using-react ...that's obviously not co

Take a look here: https://github.com/facebook/react/wiki/sites-using-react https://github.com/facebook/react/wiki/sites-using-react ...that's obviously not complete, either. If you think of a large tech company the odds are they are using react somewhere for something, be it public facing or internal tooling. Many of the companies that aren't actively using React do so because they have their own JS stacks to dogfood (like Google and Angular).