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Profile Picture

Penny Madden

Penny
Madden

Partner

CONTACT INFO

pmadden@gibsondunn.com

TEL:+44 (0)20 7071 4226

FAX:+44 (0)20 7070 9226

London

Telephone House, 2-4 Temple Avenue, London, EC4Y 0HB United Kingdom

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PRACTICE

International Arbitration Litigation

BIOGRAPHY

​Penny Madden is an English qualified Queen’s Counsel and partner in the London office of Gibson, Dunn & Crutcher. She is Co-Chair of the International Arbitration Practice Group and a member of the firm’s transnational Dispute Resolution Practice Group.

She has a wide range of experience in all key aspects of international arbitration with particular expertise in shareholder, telecommunications, SPA, energy, international trade and insurance disputes. She represents clients across the globe in a wide variety of arbitration proceedings, including those before the London Court of International Arbitration (LCIA), International Chamber of Commerce (ICC), United Nations Commission on International Trade Law (UNCITRAL), International Centre for Settlement of Investment Disputes (ICSID), Permanent Court of Arbitration in The Hague (PCA) Singapore International Arbitration Centre (SIAC), Hong Kong International Arbitration Centre (HKIAC) and London Maritime Arbitrators Association (LMAA), as well as in ad hoc proceedings. In addition to representing clients as counsel and advocate, Ms. Madden regularly sits as an arbitrator.

Her recent cases include representing a telecommunications corporate in its US$17 billion dollar UNCITRAL investment treaty arbitration against a North African state for creeping expropriation and breach of the fair and equitable treatment standard; representing a major mining corporate in a US $1.4 billion LCIA arbitration dispute arising out of mining investments in Brazil; representing a Middle East oil and gas company in a multi-billion LCIA arbitration arising out of an oil and gas project in Kurdistan; representing a syndicate of insurers in a multi-million dollar ICC arbitration for coverage of a pan-African joint venture; representing a global corporate in its US$1.6 billion dollar ICSID investment treaty arbitration against a sovereign state arising out of expropriation of extensive mining investments; and representing shareholders in a major oil company with respect to multibillion dollar claims for expropriation under the Energy Charter Treaty against the Russian Federation.

She is a member of the LCIA, CIArb, the Financial Sector Arbitration Group and the editorial board of Commercial Dispute Resolution. She writes and lectures on a wide variety of arbitration issues and is the international arbitration specialist for the Diplomatic Book and Website for foreign Embassies and High Commissions. Ms. Madden is recommended for International Arbitration and Public International Law in Legal 500 UK 2021.  Chambers UK 2021 and Chambers Global 2020 recommends Ms. Madden as a leading lawyer for International Arbitration and describes her as “absolutely superb. She is no-nonsense, super smart and has excellent written advocacy skills.” She is also noted as a “strong advocate” who clients consider to be “extremely hard-working”. She has also been described as “very business-oriented” with “great analytical skills” and “always available for her clients.” Best Lawyers UK recommends Ms. Madden in the field of International Arbitration (2019-2021), she is listed as an expert in Arbitration in Who’s Who Legal 2020, and is also ranked as a ‘Litigation Star’ for International Arbitration by Benchmark Litigation Europe 2020.  Ms Madden’s team won Arbitration Team of the Year 2020 in the British Lawyer Awards for its representation of a mining investor in relation to an ICSID investment treaty arbitration against a sovereign state.

Ms. Madden received her Bachelor of Arts in 1990 from University of Oxford, St. Hugh’s College, and her Law Society Finals in 1992 from University of Law, Guildford.  She took silk in 2016.

EDUCATION

University of Law - Guildford - 1992 Common Professional Exam

University of Law - Guildford - 1992 Law Society Finals

University of Oxford - 1990 Bachelor of Arts

ADMISSIONS

England & Wales - Solicitor

RECENT PUBLICATIONS

Firm News - January 14, 2021 | Who’s Who Legal 2021 Recognizes Gibson Dunn Partners in Arbitration, Tax and Competition
Client Alert - December 16, 2020 | Gibson Dunn | Europe | Data Protection – December 2020
Client Alert - November 5, 2020 | Gibson Dunn | Europe | Data Protection – November 2020
Firm News - October 23, 2020 | Gibson Dunn Ranked in Chambers UK 2021
Client Alert - October 16, 2020 | The Singapore Convention on Mediation: New Kid on the Dispute Resolution Block Now in Force
Client Alert - October 6, 2020 | Gibson Dunn | Europe | Data Protection – October 2020
Firm News - October 5, 2020 | Benchmark Litigation Europe 2021 Names Four Partners Stars
Firm News - September 22, 2020 | Thirteen Gibson Dunn Partners Recognized in Expert Guides’ Women in Business Law
Client Alert - September 8, 2020 | Gibson Dunn | Europe | Data Protection – September 2020
Client Alert - August 5, 2020 | Gibson Dunn | Europe | Data Protection – August 2020
Client Alert - July 17, 2020 | The Court of Justice of the European Union Strikes Down the Privacy Shield but Upholds the Standard Contractual Clauses under Conditions
Client Alert - July 9, 2020 | Gibson Dunn | Europe | Data Protection – July 2020
Firm News - June 12, 2020 | Best Lawyers in the United Kingdom 2021 Recognizes 12 Gibson Dunn Attorneys
Client Alert - May 11, 2020 | European Commission Launches Major AML Initiative
Client Alert - March 24, 2020 | Crisis Management & COVID-19 Response: Plan Now to Mitigate Against the Ripple Effects of COVID-19 Crisis
Firm News - January 30, 2020 | Who’s Who Legal Names 12 Partners to Practice Guides for Trade & Customs, Arbitration and Restructuring & Insolvency
Firm News - November 4, 2019 | Benchmark Litigation Europe 2020 Names Four Partners Stars
Client Alert - October 15, 2019 | Argentina and Other States Adopt Currency Restrictions, Raising Potential Investment Treaty Claims
Firm News - October 10, 2019 | Gibson Dunn Ranked in Chambers UK 2020
Client Alert - August 22, 2019 | The Singapore Convention on Mediation and the Path Ahead
- July 1, 2019 | Best Lawyers in the United Kingdom 2020 Recognizes 11 Gibson Dunn Partners
Firm News - November 2, 2018 | Gibson Dunn Ranked in Chambers UK 2019
Publications - October 18, 2018 | Webcast: GDPR’s First Five Months: Emerging Trends and Implementation Challenges
Client Alert - July 12, 2018 | The Politics of Brexit for those Outside the UK
Firm News - June 25, 2018 | Best Lawyers 2019 Recognizes Nine UK Partners
Article - June 1, 2016 | Covered Investment
Client Alert - January 28, 2016 | Cybersecurity and Data Privacy Outlook and Review: 2016
Article - November 6, 2015 | Investment Treaty Considerations For Deal Makers
Publications - October 14, 2015 | Webcast: Enforcing Arbitral Awards and Judgments Against Foreign Entities
Client Alert - September 25, 2015 | Bilateral and Multilateral Investments Treaties: What All Dealmakers Need to Know
Client Alert - October 6, 2014 | Protecting Your Investments in Emerging Markets
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