Google "roll on roll off + Denmark". Lots of companies. I can't recommend any to Denmark however. In 2006 I shipped my BMW to Germany and used a company from NJ and it was delivered by another company called "Interfracht" in Bremen, Germany. The American company was not good at all. Their partner in the deal "Interfracht" was a great company to work with. Lots of sharks in the American shipping ports. Be wary!
Work is never done, so take time to play!