The Firm: Proskauer Rose enters the rankings this year on the back of praise for its strength in copyright and trademark work for stellar names in the worlds of consumer products, music, publishing and sport. The New York group's patent litigation offering also continues to grow and impress market sources. Clients include Colgate-Palmolive, Lady Gaga, Major League Baseball and Reed Elsevier.

Key Individuals: Brendan O'Rourke is co-head of the firm's litigation group and its false advertising and trademark practice.