Andrea Hamilton draws on deep experience from both sides of the Atlantic, advising clients on some of their most strategic competition matters. She has been recognized for her subject matter experience and her ability to work closely and efficiently with clients to develop winning strategies. Andrea focuses her practice on EU and international merger control investigations as well as non-merger conduct investigations and antitrust litigation. She regularly represents clients before the European Commission and national competition authorities and coordinates global investigations.

Show More



  • Advised Bemis in its $6.8 billion merger with Amcor
  • Advised Praxair in connection with global divestitures resulting from its $90 billion merger with Linde
  • Advised Evonik in the US$ 3.8 billion acquisition of the performance materials division of Air Products
  • Advised Lockheed Martin in the US$ 5 billion sale of its government IT business to Leidos
  • Advised Lockheed Martin in its US$9 billion acquisition of Sikorsky
  • Advised Praxair on the acquisition of the carbon dioxide business of Yara for € 300 million
  • Advised Olam International Limited in its US$ 1.3 billion acquisition of ADM’s global cocoa business Advised Motorola Solutions, Inc. in the US$ 3.45 billion sale of its enterprise business to Zebra Technologies, Inc.
  • Advised Mars, Inc. in its US$ 2.9 billion acquisition of the pet food business of Procter & Gamble Advised Fila Korea, Ltd. and Mirae Asset in connection with its US$ 1.2 billion acquisition of Acushnet Company
  • Advised Orica, Ltd. on its US$1.7 billion acquisition of Dyno Nobel’s explosives business Advised Lockheed Martin in the formation of the United Launch Alliance joint venture
  • Advised L-1 in the US$ 1.6 billion sale of its intelligence business to BAE Systems Numerous portfolio acquisitions and divestitures for private equity firms
  • Advised a third-party intervener in the divestment proceedings following Universal’s acquisition of EMI

EU Cartels and Litigation

  • Advised a financial services company in the context of an antitrust investigation conducted by the European Commission
  • Advised a shareholder in a 50:50 joint venture in the context of a cartel investigation conducted by the European Commission
  • Represented companies in the first settlement case under the European Commission’s Cartel Settlement Procedure, as well as the first hybrid settlement case under this procedure
  • Advised in the appeal of a cartel decision before the EU General Court on behalf of a client in the chemicals industry
  • Assisted in obtaining a reference to the Court of Justice of the European Union in an antitrust damage claim action brought by Cartel Damage Claims
  • Assisted in advising a US-based technology company in a competition claim in the UK High Court for abuse of dominance in the creation and licensing of certain patents underlying the MP3 standards

US Litigation and Class Action Defense

  • Represented the US Chamber of Commerce as amicus curiae brief before the US Supreme Court in Texaco, Inc. v. Dagher, which clarified the application of antitrust law to joint ventures
  • Byers v. Intuit, et al. – assisted in the successfully obtaining dismissal of a class action matter, upheld on appeal to the US Court of Appeals for the Third Circuit
  • Assisted in the successful defense of multiple antitrust class actions in federal courts across the US alleging that hospitals engaged in wage-fixing conspiracies
  • In re Chocolate Confectionery Litigation (indirect purchaser action) – assisted in the defense of Mars, Inc.
  • Ortho Biotech v. Amgen, assisted in successfully defeating preliminary injunction seeking to enjoin a bundled discount arrangement


  • Global Competition Review, Women in Antitrust, 2021
  • The M&A Advisor, “M&A Deal of the Year” International M&A Award Winner, 2019
  • The Legal 500 EMEA, Competition: EU and Global, 2015-2021
  • Who’s Who Legal, Competition: Future Leaders, 2017-2020
  • Global Competition Review, 40 under 40, 2015


  • American Bar Association, Antitrust Section
  • International Bar Association, Antitrust Committee


King’s College London, MA, EC Competition Law, 2010
King’s College London, Postgraduate Diploma in EC Competition Law, 2008
University of Virginia School of Law, JD, 2003
Whitman College, BA, cum laude, with honors in major study, 1998

Brussels (Flemish section, B-List)
England and Wales
District of Columbia
New York

Show More

Andrea L. Hamilton

Insights & Events / Media

International News / October 2021

Special Report / February 2021

Special Report / January 2020

International News / December 2020

Pubblicazioni / October 2020

International News / September 2020

Pubblicazioni / August 2020

Webinar / McDermott Event / April 20, 2020

Webinar / McDermott Event / September 10, 2019

International News / September 2019

Special Report / 18. February 2019

International News / Winter 2018

International News / September 2018

International News / April 2018

Special Report / March 28, 2018

International News / December 2017

International News / September 2017

International News / Summer 2014

On the Subject / May 1, 2014

Pubblicazioni / May 1, 2014










... 9