Some of this is more techno/dance, but it's European...

Antilop
Darude
Scooter
Alice DeeJay
ATB
2 Unlimited
Haddaway
E-Rotic
Captain Jack

I don't listen to it, but it was all played so much on radio back in the 90's, when I still listened to it, so it's all in my mind.

If you want to go very trance oriented there's also,
Dj Tiësto
Paul Van Dijk (Paul Van Dyk)
Aarmin Van Buuren

Trance, on the other hand, is something I like quite a lot. But only select tracks.

Not only.

You need Zombie Nation - Kernkraft 400, too :).

I'm so excited! When I was in Germany I kept hearing this one song (it was played on a commercial) and I didnt know who it was by. Then I was downloading Christina Sturmer and found out it was her song Nie Genug that I had been hearing :) It was unexpected but I'm glad I found it!

Try WOLFSHEIM
the lead singer, Heppner's voice is magnetic!
I love the song "Wundervoll", which has an excellent but unreleased trance mix by Blank and Jones
Wolfsheim - Wundervoll (Blank and jones remix)