React In Production: AirBnB, Asana, Atlassian, BBC, Chegg, CloudFlare, CNN.com, Codecademy, Coursera, Craftsy, Dailymotion, Dropbox, Expedia, Facebook, Feedly, Flipboard, HipChat, IMDb, Imgur, Instagram, Khan Academy, KISSmetrics, Mattermark, Minerva Project, Netflix, OkCupid, Rackspace, Rally Software, Ralph Lauren, Reddit, Redfin, Salesforce, Squarespace, The New York Times, Trunk Club, Twitter, Uber, University of Cincinnati, Venmo, WhatsApp, Wired, Wix, WordPress, Yahoo, Zendesk
Source: Using React is a Business Decision, Not a Technology Choice — Future of Front End — Medium