« View all Lawyers

Brian A. Ratner

Brian A. Ratner

1700 K Street, NW Suite 650
Washington, DC 20006
202.540.7200 ph
202.540.7201 fax
Download vCard
Download Bio (PDF)

Mr. Ratner is Head of the firm's International practice. He 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 over $100 million for his corporate clients in the last year alone.

Mr. Ratner was selected as a Washington, DC Super Lawyer for 2014. In 2012 and 2013, The Legal 500, which provides comprehensive worldwide coverage on legal services and rankings, selected Mr. Ratner as one of the top 10 Leading Lawyers in the U.S. in plaintiff's representation for antitrust, stating that "'Brilliant lawyer' Brian Ratner is 'a very smart and business-oriented negotiator'" and, that "Brian Ratner 'thinks strategically, is an excellent negotiator and has a solid foundation of substantive law'." In 2011, the publication also recommended him as an "engaging, highly competent professional who can simplify complex antitrust matters and make them comprehensible to a non-antitrust attorney."  In 2012, The Benchmark Plaintiff Guide to America's Leading Plaintiff's Firms and Attorneys named Mr. Ratner as one of the country's top "Antitrust Litigation Stars" and one of DC's "Local Litigation Stars." Mr. Ratner was also honored by Law360 as one of its 2012 Rising Stars and was previously named to the Legal Times 2009 "40 under 40" list, which recognized rising legal stars expected to play a key role in the Greater Washington legal community for years to come.

Mr. Ratner has successfully litigated some of the biggest, most challenging, and most high stakes antitrust litigation in U.S. federal courts. He served as one of the lead lawyers in the landmark Vitamins Antitrust Litigation (D.D.C.) on behalf of vitamin direct purchasers who were overcharged as a result of a ten-year global price-fixing and market allocation conspiracy. The case settled for over $1 billion and included a 2003 jury trial resulting in a verdict of $148 million in trebled damages - the twelfth largest U.S. jury verdict in 2003. Mr. Ratner was one of the principal lawyers that led the related case of Empagran, S.A. et al. v. F. hoffmann-LaRoche, Ltd., et al. (D.D.C.), on behalf of foreign vitamin purchasers, all the way to the Supreme Court, resulting in a groundbreaking judgement on the scope of U.S. Sherman Act jurisdiction. This case was designated as the "Matter of the Year" by the Global Competition Review. Mr. Ratner has also litigated, among other matters: In re Vitamin C Antitrust Litigation (E.D.N.Y.), a case alleging a conspiracy to fix the price and limit the supply of Vitamin C sold for export to the United States, which has resulted in entry of a 2013 judgment for $153.3 million post jury verdict in the direct purchasers' favor - the thirteenth largest U.S. jury verdict in 2013 - and $32.5 million in settlements to date; Oncology & Radiation Associates v. Bristol-Myers Squibb Co. (D.D.C.), a case alleging unlawful monopolization against a drug manufacturer, which settled for $65 million; and Molecular Diagnostics Laboratories v. Hoffmann-La Roche, Inc., et al. (D.D.C.), a case alleging unlawful monopolization on behalf of purchasers of an enzyme used in DNA amplification, human-genome research, and medical diagnostics, which settled for $33 million. In the past year, Mr. Ratner has also advised companies regarding the historic $7.25 billion Visa-Mastercard Interchange Fee settlement and acted on the defense side in a U.S. class action against freight forwarders alleging a conspiracy to fix surcharges on air cargo shipments.

In coordination with his UK partners, Mr. Ratner also currently represents purchasers of car glass, auto parts, air freight services, Visa/MasterCard services, carbon graphite, elevators, copper fittings and tubes, steel and marine hose regarding their individual cartel damage claims in Europe. Several of these clients are listed in Fortune Global 500 and Forbes Global 2000. Additionally, in the marine hose matter, on behalf of a group of oil and gas companies, he led the negotiations with cartelist Parker ITR which produced a first of its kind private global settlement agreement.

The above matters demonstrate Mr. Ratner's ability to tackle and find solutions for the most novel legal issues, as well as his broad experience at all stages of global antitrust litigation, 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.

Mr. Ratner has also frequently lectured, published articles and papers, and organized conferences on issues such as the private civil enforcement of competition law and the mechanisms for collective redress around the world.


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

University of Pittsburgh School of Law, J.D., 1999; managing editor, Journal of Law and Commerce

Bar Admissions


New Jersey

District of Columbia

The United States Supreme Court

Several Federal Courts

News & Publications

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

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

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

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

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

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

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

"Chinese Cos. Can't Shake Vitamin C Antitrust MDL", CompLaw360, September 7, 2011

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

Hausfeld LLP Named as Tier 1 Firm in Plaintiff Antitrust Litigation by The Legal 500, June 15, 2010

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

“Vitamins cartel action filed against Roche in Panama,” CompLaw 360, September 11, 2009

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

“Private settlements could gain steam, lawyers say,” CompLaw 360, March 12, 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

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

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

Speaking Engagements

Conference Speaker, National Conference on Class Actions - Recent Developments in Quebec, in Canada, and in the United States, Montreal, March 21-22, 2013

Conference speaker, The Chicago Forum on International Antitrust Issues, Northwestern University School of Law, May 20, 2010

Conference panel moderator, Cartels, Product Defects and Global Accountability conference, October 20, 2008

Panelist, The International Cartel Workshop, ABA Section of Antitrust Law, San Francisco, January 30, 2008

Conference panel moderator, Cartels, Product Defects and Global Accountability conferences, Seoul, Tokyo, and Beijing, October 2008

Panelist, The International Cartel Workshop, ABA Section of Antitrust Law, San Francisco, January 30, 2008

Conference speaker, Class Actions and Collective Redress: "Lessons Learned from the U.S. Experience," London, November 27, 2007

Conference speaker, Class Actions for Non-Class Action Lawyers – Growing Your Business by Understanding the Basics and Recognizing Opportunities, “Class Action Settlements: Procedures, Methods and Attorneys’ Fees,” Los Angeles, February 23, 2007

Panelist, International Class Actions Conference, Melbourne, December 1-2, 2005