Lucas Karl Erich Tinzl

Dorotheum GmbH & Co. KG owns and operates auction houses. It offers items for auction in various categories, such as modern art, contemporary art, old masters, paintings, antiques, glass and porcelain, art nouveau, silver, sculpture, furniture, designs, jewelry and clocks, books, coins and medals, autographs, stamps, orders and decorations, historical scientific instruments, historical military and weapons, toys, model railways, old posters, historical radio technology, and vintage cars and vehicles. The firm also provides financial services related to loans and the sale of artworks. The company was founded by Kaiser Joseph I in 1707 and is headquartered in Vienna, Austria.

Dorotheum Beteiligungs GmbH operates as a holding company, which engages in the acquisition, management, and sale of participations in other firms. The company was founded on June 7, 2001 and is headquartered in Vienna, Austria.