Penny Madden is an English qualified King’s Counsel of the London office of Gibson, Dunn & Crutcher and is Co-chair of the International Arbitration Group globally. She has a wide range of experience in all key aspects of international disputes with expertise in energy, renewables, environmental regulatory and shareholder disputes. In addition to representing clients as counsel and advocate, Ms. Madden regularly sits as an arbitrator. Ms. Madden also has significant experience in high court litigation, enforcement proceedings and regulatory investigations, and frequently advises European companies registered in the United Kingdom and/or the United States on complex multi-jurisdictional regulatory enforcement issues.