Law firm SJ Berwin has announced that profits per equity partner, which were £801,000 ($1.33 million) for 2008, fell to £410,000 ($680,000) for 2009.
The firm saw revenue fall 14% to £184 million ($305 million).
The other British firms that have seen the largest drop in profits are Travers Smith, Clifford Chance , Ashurst and Berwin Leighton Paisner.