Mayer Brown Rowe & Maw has hired nine partners from Crowell & Moring as the US giant bulks up its securities, litigation and corporate practice.

The group, which is headed by Richard Morvillo and includes Pat Conti, Crowell’s former chair of securities regulation and enforcement practice and ex-Securities and Exchange Commission (SEC) enforcement lawyer, join the Chicago-based firm to boost its Washington DC and New York offices.