There are many big companies using React Native such as Facebook, Instagram, Tesla, and Airbnb. React Native has been used by these companies to build cross-platform mobile applications. Tesla uses React Native to develop their mobile app for both iOS and Android, and Facebook uses React Native to build the Ads Manager app. React Native has also been used by Instagram to develop their app for both iOS and Android. Airbnb uses React Native to develop their mobile app for both iOS and Android.