AS350B3 rating...
Scandinavia... I can tell you about the Swedish situation. There are currently only two FTO/TRTO organizations operational. They do a fair amount of trading with their "papers", so a few more locations than two are available for type rating. I beleive West Helicopter in Luleå would possibly be able to help you, or Kallaxflyg (also way up north). Bear Flight in Gothemburg holds an FTO. The biggest flight school operation is at Roslagens Helikopterflyg just north of Stockholm, and Christer Öhlund there will at least be able to point you in the right direction. His full FTO is used by the Luleå organizations as well. The school part of his operation is "Proflight".
I am slated for a type rating on the B3 next year, but I'll go down to southern France and take a factory check-out. The factory apparently holds a full FTO of JAR flavour. I would definately check there.
/per