Dewey & LeBoeuf and Debevoise & Plimpton have both posted double-digit falls in revenue for 2009, reports The Am Law Daily.

Dewey saw an 11% drop in revenue to $913.9m (£610.6m) as turnover fell below the billion-dollar mark that the firm passed in 2008, while profits per equity partner (PEP) moved up by 3.4% to $1.6m (£1.1m).