And yet if we take a snapshot literally right now:
Guido van Rossum - Microsoft Distinguished Engineer
Bjarne Stroustrup - professor of Computer Science at Columbia University (City of New York)
Linus Torvalds - Nationality American/US since 2010 (should I write GNU/American/US? Someone educate me).
Erlang - I don't know anything about Erlang so I've got nothing to say.
Nokia - brutally ejected from the market by the Americans, bought out and sepukku-ed under Microsoft leadership. Now phones may as well be an Asian technology. Oversaw the collapse of European leadership in the mobile space, to the point where it is going to be a case study in how to fail at innovation.
Spotify - Leading EU tech success story. Makes up 50% of the counterexamples, along with ASML. Not detectable as a serious tech company when compared to Google, Microsoft, Amazon, etc, etc.
HTML - I mean, we'd probably have managed without the Europeans on this one. Although useful, HTML isn't a very technical accomplishment. Anyone could invent this, including most CS undergrads.