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Profile Picture

Penny Madden KC

Penny
Madden

Partner

CONTACT INFO

pmadden@gibsondunn.com

TEL:+44 20 7071 4226

FAX:+44 20 7070 9226

London

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

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PRACTICE

International Arbitration Judgment and Arbitral Award Enforcement Litigation Privacy, Cybersecurity and Data Innovation Transnational Litigation

BIOGRAPHY

Penny Madden is an English qualified King’s Counsel and serves as Co-Partner in Charge of the London office at Gibson, Dunn & Crutcher. She is co-chair of the International Arbitration Practice Group and a member of the firm’s Transnational Litigation 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, Penny regularly sits as an arbitrator.

Her recent cases include representing two Middle Eastern oil and gas companies in multiple LCIA arbitrations arising out of a multi-billion oil and gas project in Kurdistan and disputed gas pipeline; representing a Middle Eastern oil and gas company in a multi-billion PCA administered arbitration against a state owned Middle East oil and gas company in a gas sales and pipe-line infrastructure project dispute; 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; 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. Penny is recommended as a leading lawyer for International Arbitration in Legal 500 UK 2023. Chambers UK 2023, Chambers Global 2022 and Chambers Europe 2022 recommends Penny as a leading lawyer for International Arbitration, in which clients have recently noted: “she’s a superb practitioner and leader who is fully devoted to her cases. She is trusted by clients for her commercial vision and her impeccable advocacy skills”, “she has a presence in hearings which is impressive” and “Penny Madden is excellent to work with as co-counsel. She is responsive and respectful, and a pleasure to engage”.  In previous years, clients have noted “she has a wonderful reputation and a wonderful commercial arbitration practice”, “she presents her case with depth and clarity” and “she is well respected”. She is described 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 is also noted as “very business-oriented” with “great analytical skills” and “always available for her clients”. Best Lawyers UK recommends Penny in the field of International Arbitration (2019-2024), 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 2022. Penny’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. She is also ranked for International Arbitration and Litigation in the Lawdragon 500 Global Litigation Lawyers guide 2021 and named by Expert Guides to its 2022 Guide to World’s Leading Women in Business Law.

Penny 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 - July 25, 2023 | Lawdragon 500 Names 39 Partners Among its 2023 Leading Global Litigators
Firm News - June 8, 2023 | Best Lawyers in the United Kingdom 2024 Recognizes 21 Gibson Dunn Attorneys
Article - April 28, 2023 | Arbitrability and Public Policy Challenges
Firm News - March 16, 2023 | Gibson Dunn Ranked in Chambers Europe 2023
Firm News - December 27, 2022 | Who’s Who Legal Recognizes Eight Gibson Dunn Partners
Firm News - October 20, 2022 | Gibson Dunn Ranked in Chambers UK 2023
Firm News - October 6, 2022 | Twenty-Two Gibson Dunn Lawyers Recognized in Expert Guides’ Women in Business Law
Firm News - September 29, 2022 | Gibson Dunn Ranked in The Legal 500 UK 2023
Client Alert - September 15, 2022 | A Major Leap Towards Reciprocity in the Enforcement of Judgments Between the English and Dubai Courts
Client Alert - July 8, 2022 | Gibson Dunn | Europe | Data Protection – Q2 2022
Firm News - June 9, 2022 | Best Lawyers in the United Kingdom 2023 Recognizes 18 Gibson Dunn Attorneys
Client Alert - April 7, 2022 | Gibson Dunn | Europe | Data Protection – Q1 2022
Firm News - March 17, 2022 | Gibson Dunn Ranked in Chambers Europe 2022
Client Alert - February 18, 2022 | Which Law Governs the Arbitration Agreement? UK Supreme Court Refuses to Enforce a Paris-Seated Award Already Upheld by the French Courts
Client Alert - January 14, 2022 | Gibson Dunn | Europe | Data Protection – December 2021 (Part 2)
Client Alert - December 22, 2021 | Gibson Dunn | Europe | Data Protection – December 2021
Firm News - December 6, 2021 | Who’s Who Legal 2022 & 2021 Guides Recognize Seven Gibson Dunn Partners
Client Alert - November 16, 2021 | Gibson Dunn | Europe | Data Protection – November 2021
Firm News - October 26, 2021 | Benchmark Litigation Europe 2022 Recognizes Gibson Dunn
Firm News - October 21, 2021 | Gibson Dunn Ranked in Chambers UK 2022
Client Alert - October 20, 2021 | Gibson Dunn | Europe | Data Protection – September 2021
Firm News - October 8, 2021 | Jus Mundi Featured Gibson Dunn as Arbitration Team of the Month
Firm News - October 7, 2021 | Gibson Dunn Ranked in the 2022 UK Legal 500
Firm News - October 7, 2021 | Seventeen Gibson Dunn Partners Recognized in Expert Guides’ Women in Business Law
Client Alert - September 8, 2021 | Gibson Dunn | Europe | Data Protection – July – August 2021
Client Alert - July 19, 2021 | Gibson Dunn | Europe | Data Protection – July 2021
Article - June 17, 2021 | Arbitrability and Public Policy Challenges
Client Alert - June 8, 2021 | Gibson Dunn | Europe | Data Protection – June 2021
Firm News - June 3, 2021 | Best Lawyers in the United Kingdom 2022 Recognizes 10 Gibson Dunn Attorneys
Client Alert - May 12, 2021 | Gibson Dunn | Europe | Data Protection – May 2021
Client Alert - April 9, 2021 | Gibson Dunn | Europe | Data Protection – April 2021
Firm News - March 19, 2021 | Gibson Dunn Ranked in Chambers Europe 2021
Client Alert - March 10, 2021 | Gibson Dunn | Europe | Data Protection – March 2021
Firm News - February 23, 2021 | Sixteen Partners Named Among the Lawdragon Global Litigation 500
Client Alert - February 12, 2021 | Gibson Dunn | Europe | Data Protection – February 2021
Firm News - January 14, 2021 | Who’s Who Legal 2021 Recognizes Gibson Dunn Partners in Arbitration, Tax and Competition
Client Alert - January 11, 2021 | Gibson Dunn | Europe | Data Protection – January 2021
Client Alert - December 14, 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
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 23, 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 14, 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
- June 28, 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
Webcasts - October 15, 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 15, 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
Webcasts - 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
Client Alert - October 6, 2020 | Gibson Dunn | Europe | Data Protection – October 2020
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