According to an article by translation and localization agency Moravia, almost all 50 top European startups and high-tech unicorns localize into English, approximately 75% of them also target German, French, and Spanish, and only about 44% of these companies localize into Asian languages.
About 25% of European startups localize into Romanian, ahead of many other Eastern European languages (except Russian and Polish.) This appears to be in direct correlation with market size.
Source: http://info.moravia.com/blog/what-languages-do-european-startups-and-unicorns-target
