A study that examined over 9,000 Supreme Court Briefs and their respective Supreme Court opinions from 1946 to 2013 and reviewed which firms “encountered the most success in having their [briefing] language adopted in Supreme Court opinions” reported that O’Melveny & Myers was the No. 1 most influential firm at the Supreme Court.


O’Melveny’s Data Security and Privacy group helps clients prepare for and respond to potentially serious legal and financial risks posed by evolving data protection and privacy standards. We provide counsel across the entire life-cycle of concerns—from counseling and policy formation, to managing responses, investigations, litigation, and regulatory proceedings.