EU companies rarely set up shop abroad since the culture here, driven by the lack of a common language like English prefers cultural similarly and physical proximity. That's why German companies prefer to do business with Swiss and Austrian companies and vice versa or how Norwegian companies prefer Danish or Swedish firms for example.

And if they do outsource something abroad it's usually nothing exciting, so local salaries should not dive.

For example, Microsoft has offices in Eastern Europe and India as well yet Seattle workers still make a killing.