Quinn Emanuel Urquhart & Sullivan



  • Antitrust & Competition
  • Appellate Practice
  • Bankruptcy & Restructuring
  • Class Action Litigation
  • Construction Litigation
  • Cyber Security & Data Protection
  • Domestic U.S. Arbitration
  • Employment Litigation & Counseling
  • Energy Sector Disputes
  • Environmental Litigation
  • Government Contracts Litigation
  • Health Care Litigation
  • Insurance & Reinsurance Litigation
  • Insurance Recovery
  • Intellectual Property Litigation
  • International Arbitration
  • International Trade Commission Proceedings
  • Investment Fund & Fund Advisor Litigation
  • Latin America Practice
  • Lender Liability & Other Banking Financial Institution Litigation
  • Life Sciences Litigation
  • Litigation Representing Plaintiffs
  • Media & Entertainment Litigation
  • Mergers & Acquisitions Litigation
  • Product Liability & Mass Torts Litigation
  • Public Strategy in High Profile Litigation
  • Real Estate Litigation
  • Satellite & Aerospace Litigation
  • Securities Litigation
  • Sports Litigation
  • Structured Finance & Derivatives Litigation
  • Transnational Litigation
  • White Collar & Corporate Investigations



Our reputation as trial lawyers is well known.
We represent Fortune 500 companies and other enterprises for virtually every type of business dispute.

In today’s shrinking world business disputes are often international.  Lawyers at our firm have broad experience representing clients in significantly related litigations filed in multiple countries.  In addition to our offices in the United States, we have offices in Tokyo, London, Mannheim, Moscow, Hamburg, Paris, Hong Kong, Munich, Sydney, and Brussels. 

Our European offices form a dynamic team of attorneys who collaborate strategically to offer effective national and cross-border litigation, arbitration, and investigation advice. We work together across cultures and time zones, on different continents and in different languages, relying on our network of offices as well as partnerships with counsel in countries where we have no office, to offer coordinated, multi-jurisdictional dispute avoidance and resolution strategies for our clients, both  EU- and U.S.-based.

Our firm also has worked closely with the very best law firms in Europe, the Americas and Asia.  These connections enable us to better serve the interests of our clients around the world and to gain the type of understanding of local customs, practices, courts and laws that can make the difference between success and failure.  We have worked closely with the top law firms in most major international legal markets, including in litigation matters where we act as world-wide coordinating counsel.

The firm’s broad expertise in cross-border and multi-jurisdictional litigation is complemented by its similar strength in representing clients in international arbitration matters.


  • Brussels
  • Chicago
  • Hamburg
  • Hong Kong
  • Houston
  • London
  • Los Angeles
  • Mannheim
  • Moscow
  • Munich
  • New York
  • Paris
  • San Francisco
  • Seattle
  • Silicon Valley
  • Sydney
  • Tokyo
  • Washington, D.C.
  • Zurich


Peter E. Calamari

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