Sidley Austin and Paul Weiss Rifkind Wharton & Garrison have become the latest US law firms to post rising revenues for 2011, reports the Am Law Daily.

After enduring a flat year in 2010, Sidley Austin saw revenues rise 5.6% to $1.41bn (£887m) in 2011, while partner profits increased 9.6% to $1.6m (£1m).