Danish firm 3XN was founded in Aarhus in 1986 by Kim Herforth Nielsen, Lars Frank Nielsen and Hans Peter Svendler Nielsen. The architecture firm completes projects worldwide, and today has a staff of over 100 with over 20 nationalities, with offices in Copenhagen, Stockholm, New York and Sydney.
Pictured above is Copenhagen’s whirlpool-shaped Blue Planet aquarium – the largest in northern Europe. The building features a series of curved wings which mimic the shapes created by swirling water.
Number of employees: 100-200