Founded in 1958 by Pierre Koller, it is the leading auction house in Switzerland.

[2][3] [4] Besides the headquarters in District 5 in Zürich, Koller also operates a subsidiary in Geneva (Koller Genève) and representative offices in Munich, Düsseldorf, Florence and Beijing.

Koller holds both traditional saleroom auctions as well as timed online-only auctions, under the name Koller ibid online only.

[5] Since 2008 the company is known as Koller Auctions Ltd. (Koller Auktionen AG) since the primary business activity became art auctions over the time.

It's currently family-owned and managed in the second generation by Cyril Koller.