Three of the world’s largest accounting firms, three banks and a prominent Chicago law firm were on Tuesday named in a lawsuit brought by the bankruptcy trustee of Refco, as it sought $2bn in damages for the defendants’ alleged role in “looting” the failed futures broker.

The move is the latest twist in the fallout from the 2005 bankruptcy of Refco, after the firm announced that its former chief executive, Phillip Bennett, had disguised a $430m debt he owed it.