You probably already know this, but "an EU entity [for] hiring" means very different things for EU citizens than for permanent residents or visa holders/seekers.
Since the EU is not an immigration union, as a permanent resident of Germany I am only allowed to work in Germany, not in any other EU country. Granted, I could probably get a work visa for another EU country, but if I wanted to remain a German resident things would get tricky very fast.
For fresh or prospective immigrants it's generally less favorable; and every EU country has different regulations as well as attitudes to immigrants from different regions.
Thus I recommend, when you get to that point, that you do some research about which EU countries are most advantageous to you and your potential workforce, and open subsidiaries in the countries that make sense. Probably more than one, out of the gate. Because missing out on the pool of immigrant talent in Europe is probably not your goal.
And congratulations on the funding!