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Brian A. Ratner

Brian Ratner is a Partner at Hausfeld and Head of the firm’s International practice. He also serves on the firm’s Management Committee and leads the firm’s global business development efforts. Brian has extensive experience representing U.S. and international businesses in complex litigation at the trial and appellate levels. He is particularly experienced in litigating and resolving antitrust claims in U.S. and European courts, recovering hundreds of millions of dollas for his corporate clients.

Brian’s broad experience demonstrates his ability to tackle and find solutions for the most novel legal issues, as well as represent his clients at all stages of global antitrust litigation and other complex business disputes, whether in the discovery, damages, trial, appeal or settlement phase, or whether in the U.S., Europe, or globally. This unique combination enables him to counsel and act for clients comprehensively, in a commercially sensitive manner, and wherever necessary.

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University of Pittsburgh School of Law, J.D., 1999

Indiana University- Bloomington, B.A.J., 1996

Bar Admissions


New Jersey

District of Columbia

The United States Supreme Court

Several Federal Courts

Affiliations & Memberships

Managing Editor, Journal of Law and Commerce

News & Press

"What It Takes to Dominate in the Elite Game of International Litigation" The American Lawyer, September 28, 2017

"Chambers & Partners, The Legal 500, and Global Competition Review Laud Hausfeld in Competition Law,The Legal 500, June 8, 2017

The Legal 500 Names Hausfeld to Top Tier of Firms in Antitrust for Seventh Year, The Legal 500, July 7, 2016. 

Super Lawyers Recognizes Thirteen Hausfeld AttorneysSuper Lawyers, April 17, 2015.

Hausfeld LLP Named as Tier 1 Firm Nationwide in Mass Tort and Class Action: Plaintiff Representation - Antitrust by The Legal 500, July 2014

Super Lawyers Recognizes Six Hausfeld AttorneysSuper Lawyers, April 25, 2014

"Bar hopping," Global Competition Review, June 30, 2014

"Plaintiffs' antitrust bar," Global Competition Review, June 30, 2014

Hausfeld LLP Named as one of the top three U.S. firms in Antitrust Plaintiff Representation by The Legal 500, July 2013

"Jury Finds Chinese Vitamin C Makers Fixed Prices; $153.3M Judgment Entered," Mealey's Legal News & Litigation Reports, March 14, 2013

Hausfeld LLP Named as Tier 1 Firm Nationwide in Plaintiff Antitrust Litigation by The Legal 500, June 2012

"U.S. Class Action Lawyers Look Abroad," Reuters, March 20, 2012

Rising Star: Hausfeld's Brian Ratner, Law360, March 22, 2012

"Brian Ratner, People on the Move,"  Washington Business Journal, April 4, 2012

"Hausfeld, Hausfeld, Hooray," Legal Bisnow, April 6, 2012

Analysis: Private antitrust lawsuits on the decline in U.S.”, Reuters, June 13, 2011

"Chinese Cos. Can't Shake Vitamin C Antitrust MDL", Law360, September 7, 2011

Vitamins cartel action filed against Roche in Panama,” Law360, September 11, 2009

2009 Legal Times “40 under 40” list recognizing rising legal stars in Washington, July 14, 2009

Unprecedented Global Settlement Reached with Parker ITR in Marine Hose Cartel,” Class Action Litigation, March 13, 2009

Hausfeld LLP announces first-ever private settlement of global cartel, March 6, 2009

Hausfeld LLP Announces Distribution of Settlement Funds in TAQ Antitrust Case, November 19, 2009

Private settlements could gain steam, lawyers say,” Law360, March 12, 2009

“‘Shell Model’ Opens Door to European Class Actions,” The American Lawyer, January 7, 2008


Co-Author,Chapter 39: USA, The International Comparative Legal Guide to Cartels & Leniency, 2014

Co-Author, "Principles and Objectives of Formal and Informal Settlements in EU Competition Cases: The Claimant’s Perspective," paper submitted for the European University Institute's 13th Annual Competition Law & Policy Workshop, publication forthcoming

Co-Author, Michael Hausfeld and Brian Ratner, "Prosecuting Class Actions and Group Litigation - Understanding the Rise of International Class and Collective Action Litigation and How this Leads to Classes that Span International Borders," World Class Actions, Chapter 26, September 2012

Co-Author, Brian A. Ratner and Sathya S. Gosselin, The Novelty of Wal-Mart v. Dukes, American Bar Association, Business Torts & Civil RICO Committee, Business Torts & RICO News, Vol. 8, Issue 1, Fall 2011

Co-Author, “A Proposal for a Transitional Forum,” submitted for Antitrust Claims Against Foreign Firms and Cartels conference (Law Seminars International), September 7-8, 2006

Presentations & Speeches

Panel Speaker, "International- Private Antitrust Enforecment Around the Globe," AAI 11th Annual Private Antitrust Enforcement Conference (November 7, 2017)

Panel Speaker, "Global antitrust litigatiion - A brave new world," GCR Live 5th Annual Antitrust Law Leaders Forum, (February 5-6, 2016) 

Panel Speaker, "Private Enforcement: New International Approaches and Developments," Northwestern Law, (May 20, 2015) 

Panel Leader, “Delivering Substantial Shareholder Returns Through Cartel Damages Litigation, on a Risk-Free Basis and with No Financial Investment,” 10th Corporate Counsel & Corporate Compliance Exchange, (April 7-9, 2014) 

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