Wikipedia
Artnet
Artnet.com is an art market website. It is operated by Artnet Worldwide Corporation, which has headquarters in New York, in the United States, and is owned by Artnet AG, a German public company based in Berlin and listed on the Frankfurt Stock Exchange. The company made a loss of over €3 million in 2014, part of which was due to costs and damages awarded against it by a court in France for copyright infringement.