[ben_w]

You seem unable or unwilling to understand:

1) why they were bought by the American companies

2) that having an American owner doesn't make them directly American or magically cause them to be in Silicon Valley

3) The country names I put in brackets

4) The location of Zürich and CERN

And instead want to focus on the fact that one specific example of a top ranked app is not all by itself an entire sector, while ignoring all the other examples *right next to it* or the fact that this was trivial to find.

To demonstrate why you're missing the wood for the trees, consider: I can accurately say "Facebook" isn't really all that important, it's just an advertising provider getting in the way of people trying to talk to each other — but that it isn't all of Silicon Valley all by itself doesn't mean its headquarters are not relevant as an example of "Silicon Valley".