At the top is British contemporary artist Damien Hirst and his production/marketing/publicity company Science. Hirst found fame with works like The Physical Impossibility of Death in the Mind of Someone Living (a shark preserved in a tank of formaldehyde) and For the Love of God (a diamond-encrusted skull he sold for $US100 million - pictured right).
It's not the first time ArtReview have awarded him the number one spot. Their explanation this time:
In a year that began with the setting of new auction records for contemporary art and ended in global financial crisis, Hirst overshadowed and outshone, becoming the first artist to bring his work directly to auction (at Sotheby's London in September), and grossing £111 million in the process.