Why would language matter?

Anyway, Frankfurt is the next biggest financial center after London, and it tend to get the business when a firm wants to move out of London .

This post is weird. Finance people who work in Frankfurt and Amsterdam certainly speak English. Yes, they will also speak German, Dutch, and a variety of other langauges, but not speaking English is not the blocker here. I will also say that finance people in Paris under 40 are also (mostly) fluent in English. (Please don't bring up accent; no one in finance cares about your accent when speaking English; they care about your prices.)

Why are you excluding Ireland?