Volterra Fietta has been recognised at the top tier of law firms specialising in public international law and international dispute resolution, for yet another year. These rankings continue Volterra Fietta’s uninterrupted perfect record in these global legal directories, held since it was founded in 2011. Robert Volterra’s practice at his previous firms held the same record for the preceding 20 years.
Volterra Fietta is grateful to its many clients around the world who have chosen the firm as their trusted adviser for Public International Law and International Dispute Resolution and for making their views known to the global legal directories.
Volterra Fietta maintains its high rankings in public international law and international arbitration
The 2026 editions of both the Chambers and Partners and the Legal 500 directories rank Volterra Fietta at the top tier for Public International Law. Both directories also rank Volterra Fietta highly for international arbitration.
Volterra Fietta has the distinction of being the only Tier 1 public international law firm in Legal 500 also to obtain a distinction for “Client Satisfaction”. The firm is pleased at this public recognition by the global legal market that our clients’ remain the focus of our practice.
Client testimonials about the firm include:
“Volterra Fietta has a unique team, every lawyer holds at least one degree in public international law, specialized in one field or more, and has excellent knowledge and experience”.
“The [Volterra Fietta] lawyers are available and very cooperative, and ready to respond almost anytime. I had an excellent experience with them”.
“The quality of advice is exceptional”.
“Deep specialised knowledge; nimble; genuinely international”.
Volterra Fietta partners and other team members continue to be highly ranked as leaders in the field
Both legal directories also again rank individual Volterra Fietta’s lawyers as being among the best lawyers in the world in their fields.
Chambers and Partners continues its decades-long ranking of Partner Robert Volterra with its highest accolade as a “Star Individual” in Public International Law. It also ranks him as Band 1 in International Arbitration: Arbitrators and Band 2 in International Arbitration. The directory notes that Robert has:
“An outstanding track record of acting for sovereign states around the world on complex issues of international law as well as investor-state arbitrations. His practice covers the full gamut of issues”.
Client comments about Robert include that “He is first class in his preparation and presentations as well as his customer service”.
Chambers and Partners ranks Partner Gunjan Sharma as “Up and Coming” in Public International Law. The directory notes that:
“Gunjan Sharma has developed a strong practice in PIL matters. His expertise spans investor-state arbitrations, sovereign immunity issues, maritime boundary disputes and climate change-related matters. He is highly experienced at representing states, international organisations and major international companies”.
Clients note that Gunjan’s “expertise, professionalism and commitment to his clients make him an invaluable asset in a high-stakes legal matter”.
Legal 500 also continues to give Volterra Fietta partners and lawyers high praise.
Partner Robert Volterra has once again been given the highest ranking, “Hall of Fame”, in Public International Law. Clients note that Robert is “one of the best lawyers in PIL in the world” with “deep knowledge” and “great experience”, whose “grasp of public international law is second to none”.
Partner Ahmed Abdel Hakam retains the ranking of “Next Generation Partner” in Public International Law. The directory notes that he “has a focus on international disputes in the energy and natural resources sector”.
Partner Gunjan Sharma is also recognised as a “Next Generation Partner” in Public International Law. Clients state that: “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”.
Counsel Angela Ha and associate Magdalena Kowalczuk Asher are also ranked as “Leading Associates”. Angela is noted as having been praised by clients for her experience in international investment law, sovereign immunities, law of the sea, boundary disputes and human rights. Magdalena is called “outstanding” and acclaimed for her “responsiveness, dependability and superior legal acumen”.
Volterra Fietta lawyers Florentine Vos and Ben Burnham are also identified as “key team members”.
For further information, please contact info@volterrafietta.com.
“The Volterra Fietta team’s experience-based understanding of dispute resolution tactics and strategy enabled us to achieve our hoped-for outcomes.”
Volterra Fietta client
