Asif Husain, senior VP in New York and San Francisco at Ogilvy, has joined Lewis as US head of brand marketing.
The 17-year PR veteran heads the media strategy group and is responsible for the recently launched executive visibility practice.
Husain has worked on campaigns for IBM, Volvo Trucks, Sprint, Intel and LG Mobile.
At Lewis, he's also charged with developing multi-country programs for international clients.
The firm has 550 staffers in 30 countries.