A trained accountant, Olivier Lange began his career with Arthur Andersen and began to get closer to the art world by setting up the first voluntary sales companies (SVV) of auctioneers. He joined the Drouot group in 1, as Chief Financial Officer of Auctionspress / Gazette de la Hôtel Drouot, a subsidiary of which he has been Managing Director since 2002. In May 2005, he was appointed Chief Executive Officer of Drouot Patrimoine, the holding company of the Drouot group which includes several subsidiaries including Drouot Enchère, Auctionspress, Drouot SI, Drouot Formation, etc.