
Best known for its public international law credentials, Volterra Fietta‘s practice is highly experienced in investment treaty proceedings. It also covers commercial arbitrations. Robert Volterra’s recent experience includes multiple investment treaty arbitrations; Peter Flint acts under all the major arbitral rules; Gunjan Sharma‘s ’advocacy is sharp and articulate’; and Ahmed Abdel Hakam assists with both investment and commercial arbitrations. The team further includes Angela Ha, who represents both claimants and respondents in high-stakes investment treaty arbitrations.
Legal 500 Editorial commentary
Accolades
Client satisfaction
Testimonials
Collated independently by Legal 500 research team.
- ‘The firm is practical in its approach to issues - a highly competent team. Stands out as a truly exceptional and unique law firm, particularly in the realms of international arbitration and public international law.’
- ‘Offers not only technical brilliance and deep subject-matter expertise, but also strategic foresight, dedication, and an unwavering commitment to client service.’
- ‘What sets Volterra Fietta apart is the unparalleled depth of experience its team brings in complex, high-stakes international disputes.’
- ‘The firm’s lawyers possess an exceptional understanding of treaty law, investor-state arbitration, and state-to-state matters. They consistently demonstrate a command of the legal and geopolitical landscape that is rare even among leading international law firms.’
- ‘Their ability to navigate sensitive legal terrain with precision, diplomacy, and strategic clarity is instrumental to achieving favourable outcomes in cases.’
- ‘Gunjan Sharma’s advocacy is sharp and articulate, and always grounded in a deep understanding of both the legal and geopolitical nuances of the dispute.’
Key clients
- State of Libya
- Koch Industries
- Koch Minerals
- Koch Nitrogen International
- Owens-Illinois
- Arab Republic of Egypt
- Republic of Croatia
- TeleYemen
Work highlights
Represented the Arab Republic of Egypt in an ICSID investment treaty arbitration involving Al Jazeera Media Network, the case concerning highly-publicised claims of human rights violations.
Representing the Republic of Croatia in an ICSID investment treaty arbitration against Société Générale, which involves the France-Croatia bilateral investment treaty.
Representing the State of Libya in a claim brought by a large Italian weapons manufacturer, the case involving complex public international law issues and arbitration proceedings.
Lawyers
Hall of Fame
The lawyers at the very top of the profession, widely known and respected by peers and clients for their longstanding involvement in market-leading work.

Practice head
Robert Volterra; Peter Flint; Gunjan Sharma; Ahmed Abdel Hakam
Other key lawyers
Angela Ha; Florentine Vos; Ben Burnham; Magdalena Kowalczuk Asher