I don't know if you know Da Tweekaz, they ain't that known, not even in Denmark, and they're from Norway, but i think they're big upcomming producers. Their style is different from all the other hardstyle producers, they use samples that most of all sounds like something taken out of tetris or a nintedo 64, and i love it. Just listen at their track Daydre4m here (It ain't released yet):
www.myspace.com/datweekaz
Your guys should also listen to Kingsmans music, he was a danish hardstyle producer till a few days ago, but then he just went back to trance, it's a sad story imo. You gotta' hear the track Smokin' n' Pourin'
www.myspace.com/thomasulstrup
If you like theese Scandinavian producers you should also take a look at danish Carnifex, they're on their way to the top more than ever, they make some really hard hardstyle:
www.carnifex-music.com