I guys
does someone know the name of dutch VFX societies that use Houdini?!

Thanks a lot

StayPuft

As far as I know there is Guerilla games in Amsterdam.
And that other school in Utrecht, can't remember the name, but one of the users here (kgoosens) teaches there I think. You might want to get in touch with him directly, or contact this guy (I think he was demoing this tool at Siggraph this year):
http://forums.odforce.net/index.php?/topic/14711-procedural-environment-system-udk/ [forums.odforce.net]

good luck!

Peter, that would be Guerrilla games. And yes we have a couple of Houdini artists working here . The school is actually in Breda and focusses either on game tech or the artist side. Houdini would be a mix I guess. http://www.nhtv.nl/wohbo-bachelors/games/international-game-architecture-and-design/introduction.html [nhtv.nl]

There are also some smaller shops that have some Houdini people like Hectic and the ambassadors.