Skip to main content

Brian A. Ratner

Brian Ratner ist Partner bei Hausfeld und für die internationale Praxis der Kanzlei verantwortlich. Er ist außerdem Mitglied des Managementkommittees der Kanzlei und leitet die weltweite Geschäftsentwicklung. Brian Ratner hat umfangreiche Erfahrung in der Vertretung von US-amerikanischen und internationalen Unternehmen in komplexen Rechtsstreitigkeiten auf Prozess- und Berufungsebene. Insbesondere verfügt er über Erfahrung in der Prozessführung und der Beilegung von Kartellschadensersatzverfahren vor US-amerikanischen und europäischen Gerichten. Allein im letzten Jahr hat er dabei über 100 Millionen US-Dollar für die von ihm vertretenen Unternehmen erlangen können.

Seine breit gefächerte Erfahrung zeigt, dass er in der Lage ist, Lösungen für die neusten Rechtsfragen zu finden und umzusetzen und seine Mandanten in allen Phasen eines globalen Kartellrechtsstreits zu vertreten, sei es in der Ermittlungs-, Schadenersatz-, Prozess-, Berufungs- oder Vergleichsphase, ganz gleich ob in den USA, Europa oder weltweit. Diese einzigartige Kombination ermöglicht es ihm, Mandanten umfassend und wirtschaftlich sinnvoll zu beraten und zu vertreten.

Mehr Weniger


Antitrust / Competition

  • In re Rail Freight Fuel Surcharge Antitrust Litigation – Brian represents large corporations that directly purchased rail freight shipping services from BNSF, CSX, Norfolk Southern, and Union Pacific in their claims for damages stemming from the alleged rail freight cartel in the early 2000s.
  • In re Vitamins Antitrust Litigation – Brian served as co-lead counsel in the landmark case 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 in 2003 the case went to a jury trial resulting in a verdict of $148 million in trebled damages. The jury trial was the twelfth largest U.S. jury verdict that year.
  • Empagran, S.A. et al. v. F. Hoffmann-LaRoche, Ltd., et al. – Brian was one of the principal lawyers that led this case on behalf of foreign vitamin purchasers. The case was litigated all the way to the Supreme Court, resulting in a groundbreaking judgment on the scope of the U.S. Sherman Act jurisdiction. The case was designated as the “Matter of the Year” by The Global Competition Review.
  • In re Vitamin C Antitrust Litigation – Brian serves as co-lead counsel in this landmark case alleging a conspiracy to fix the price and limit the supply of Vitamin C sold for export to the United States. The case resulted in entry of a 2013 judgement for $153.3 million post jury verdict in the director purchasers’ favor – the thirteenth largest U.S. verdict in 2013. To date, settlements total $32.5 million. The jury verdict was appealed to the U.S. Supreme Court which ruled unanimously in 2018 in favor of the class and set the standard of deference to be afforded a foreign government’s submissions in U.S. courts. In 2018, the case was awarded The Global Competition Review’s “Litigation of the Year – Cartel Prosecution” award in 2018, as well as the American Antitrust Institute’s “Outstanding Antitrust Litigation Achievement in Private Law Practice” honor.
  • Oncology & Radiation Associates v. Bristol-Myers Squibb Co. – Brian served as one of the lead lawyers in a case of unlawful monopolization against a drug manufacturer, which settled for $65 million.
  • Molecular Diagnostics Laboratories v. Hoffmann-La Roche, Inc., et al. – Brian served as co-lead counsel in 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 re American Express Anti-Steering Rules Antitrust Litigation – Brian serves as one of the lead lawyers representing the class.
  • Brian has been representing car manufacturers and other OEMS including BMW, PSA and GKN regarding their auto parts cartel damage claims, and helping them achieve outstanding recoveries.
  • Brian acted on the defense side on behalf of Geodis in a U.S. class action against freight forwarders alleging a conspiracy to fix surcharges on air cargo shipments.

Antitrust Counseling and Compliance

  • Brian advises businesses on the antitrust implications of their business practices and supply relationships, and works with them to craft approaches to both eliminate or reduce potential risk as well as protect and enhance their ability to pursue antitrust claims.

Financial Services and Securities

  • MTB Investment Partners, LP v. Siemens Hearing Instruments, Inc. – Brian served as one of the lead counsel in this securities fraud matter that led to a settlement that returned more than 115% of recognized losses after attorneys’ fees and expenses to former shareholders in HearUSA, Inc.

Was andere über ihn sagen

  • For the past 7 years, The Legal 500, which provides comprehensive worldwide coverage on legal services and rankings, selected Brian as one of the “Leading Lawyers” in the U.S. representing plaintiffs in antitrust matters, stating that: [T]he ‘incredibly impressive . . . Brian Ratner [is a] highly skilled negotiator and litigator, and real fighter with an outstanding strategic sense . . . brilliant lawyer Brian Ratner is a very smart and business-oriented negotiator . . . [He] 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.”
  • Brian was added to "The Legal 500 Hall of Fame," which highlights individuals who have received constant praise from their clients for continued excellence. The Hall of Fame highlights, to clients, the law firm partners who are at the pinnacle of the profession (2020) 
  • Brian has been selected to the Washington, DC Super Lawyers list year after year (2014-Present)
  • Brian was named to the prestigious Lawdragon list of the top 500 “Leading Lawyers in America” (2018-Present) and to the Lawdragon list of "Leading Plaintiff Financial Lawyers" (2019)
  • The American Antitrust Institute honored Brian, as part of the Vitamin C case team, with the award for “Outstanding Antitrust Litigation Achievement in Private Law Practice” (2018). Soon after, the Global Competition Review honored the team with the award for “Litigation of the Year – Cartel Prosecution” (2019).
  • Who’s Who Legal named Brian as a top attorney in the Competition: Plaintiff category (2018-Present), stating that: “Brian Ratner has ‘a brilliant legal mind while being extremely pragmatic and commercially minded’, comment interviewees. He is praised as a lawyer who ‘goes the extra mile’, and whose ‘high-quality work product is feared by competitors.’”
  • The Benchmark Litigation Plaintiff Guide to America’s Leading Plaintiff’s Firms and Attorneys named Brian as one of the country’s top “Antitrust Litigation Stars” (2013), and as one of Washington, DC’s “Local Litigation Stars” (2013-15)
  • Brian was honored by Law360 as one of its “Rising Stars” (2012) and was previously named to the Legal Times’ “40 under 40” list (2009), which recognized rising legal stars expected to play a key role in the Greater Washington legal community for years to come.

Disclaimer: The DC Super Lawyers list is issued by Thomson Reuters; the Legal 500 is published by Legalease Ltd. The Benchmark Plaintiff Guide is published by Euromoney Institutional Investor PLC and Institutional Investor, Inc. The Law360 Rising Stars list is issued by Portfolio Media, Inc. The Legal Times “40 under 40” list is issued by American Lawyer Media. No aspect of this advertisement has been approved by the Supreme Court of New Jersey.


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

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



New Jersey

District of Columbia

Der Bundesgerichtshof der Vereinigten Staaten

Mehrere Bundesgerichte

Zugehörigkeiten & Mitgliedschaften

Leitender Redakteur, Journal of Law and Commerce

News & Presse

"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-Autor, Kapitel 39: USA, The International Comparative Legal Guide to Cartels & Leniency, 2014

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

Präsentationen & Reden

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

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

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

Podiumsleiter, “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) 

Zugehörig Aktuelles & Presse