Mr Peter Flint > Volterra Fietta > London, England > Lawyer Profile

Volterra Fietta

Work Department

Public International Law.


Partner at Volterra Fietta.


Peter joined the Partnership in 2021.  He is qualified as a solicitor of England and Wales.  He holds a Bachelor’s degree from the University of Oxford.

Peter is a senior lawyer with a particular focus on international arbitration, cross-border litigation and ADR.  Over his career, Peter has been advisor to governments and commercial parties in connection with international disputes of a global nature in a wide range of jurisdictions around the world.  He has advised clients on disputes arising in the context of cross-border contracts, BITs, the ECT, multilateral trade agreements and host State investment protection legislation. This includes significant experience in representing both investors and States in disputes arising under investment treaties and host State investment protection legislation, at ICSID, the PCA and elsewhere. His arbitration experience includes all of the established arbitral rules, including those of the ICC, LCIA, ICSID, SCC, the PCA, the Energy Charter Treaty, COMESA and SADEC.

Peter advises governments and commercial parties in connection with cross-border disputes in a wide range of jurisdictions, including Russia and the CIS, the Baltic States, Turkey, Lebanon, India, Pakistan, the Middle East, South America, Thailand, Indonesia, China, South Korea and a number of sub-Saharan African states. His experience covers a broad range of commercial sectors, including aeronautical engineering, oil and gas exploration, energy generation and distribution, rail infrastructure, banking and financial instruments, construction and telecoms.


Prior positions: Independent arbitrator and consultant (2016 to 2019); Gowling WLG LLP (formerly Wragge & Co) Partner & Head of International Arbitration (2011 to 2016) London, UK; Barlow, Lyde & Gilbert LLP, Partner & Head of International Arbitration (2007 to 2011) London, UK; Watson, Farley & Williams LLP, Associate and Partner (1984 to 2006) London, UK and Singapore; Ince & Co, Trainee and Assistant Solicitor (1981 to 1984) London, UK.


English and French.


Peter is admitted as a Solicitor of the Superior Courts of England and Wales (1983).


Bachelor’s degree, The University of Oxford

College of Law, London

Lawyer Rankings

Latin America: International firms > International arbitration

London-based international arbitration boutique Volterra Fietta has extensive experience advising on public international law and investment treaty matters involving Latin American and Caribbean states. The firm regularly handles state-to-state proceedings, including cases before the International Court of Justice (ICJ), and also takes on international arbitration for states and investors before ad hoc tribunals, the PCA, ICSID, the SCC and other institutions. The practice is also involved in a steady stream of commercial arbitrations, and in addition, has recently worked with states to reformulate model bilateral investment treaties (BITs). ‘Experienced and confident’ founding partner Robert Volterra is the main point of contact, with Latin America arbitration veteran Graham Coop another key name. Peter Flint , who joined the firm in 202o as a consultant, was raised to the partnership in 2021 and brings extensive international arbitration, cross-border litigation and alternative dispute resolution (ADR) to the team. Counsel Alvaro Nistal left the firm to join Arnold & Porter in June 2021.

London > Dispute resolution > International arbitration

Housing lawyers who are ‘absolutely at the highest level‘, the investment treaty arbitration practice at specialist public international law (PIL) firm, Volterra Fietta represents both states and foreign investors. The firm is also increasingly involved in commercial arbitrations. Robert Volterra is an investment treaty arbitration expert; Graham Coop focuses on energy, natural resources and infrastructure-related matters; and Peter Flint is ‘detail oriented‘. Counsel Gunjan Sharma is a PIL and international dispute resolution specialist, while associate Angela Ha is ‘very thorough‘.

London > Dispute resolution > Public international law

Without doubt the leading firm in public international law‘, Volterra Fietta‘s large PIL practice acts for private entities, states and international organisations across the full range of PIL work, including International Court of Justice (ICJ) cases, maritime boundary claims, and investment treaty and International Centre for Settlement of Investment disputes (ICSID) arbitrations. The firm also fields specialists in state immunity cases, the laws of war and international humanitarian law, along with international human rights, state responsibility, and WTO and international trade law. The ‘best public international lawyer around‘, Robert Volterra assists with a wide range of PIL issues; Graham Coop is particularly focused on the energy, natural resources and infrastructure sectors; and the experience of recently elevated partner Peter Flint includes acting for governments and commercial parties in international disputes. Recently promoted counsel Gunjan Sharma, and associates Angela Ha and Jehad Mustafa, all have extensive PIL experience.