Any software product that has significant market share internationally.
You might be tempted to include WeChat and games that Tencent brought, but if we lower the bar to that then the list of EU companies would grow a lot as well, such as SoundCloud, Shazam, last.fm, Viber, King, Mojang, Rovio, Supercell, Kiloo, Dailymotion, Criteo, SAP, ASOS, Skyscanner, Wix, GoCardless, Adyen, Kaspersky Labs, Yandex, Transferwise, Badoo, etc.