Galerie Birch is the oldest Danish modern art gallery, opened in 1946. Børge Birch became a leading art dealer in Europe and is particularly acknowledged for working with artists of the COBRA movement such as Jorn, Alechinsky, Appel, Corneille and Reinhoud. Galerie Birch is also known for its collaboration with other artists who were friends of Asger Jorn, such as Walasse Ting, Jan Voss, Jean Messagier, Bengt Lindström, Yasse Tabuchi and many more, who can all be found in the world's most important museums.