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Work 020 3818 3500
Fax 020 3818 3501
London, Paris

Hermes Marangos

Work 020 3818 3500
Signature Litigation LLP

Work Department

Insurance and Reinsurance Litigation, Commercial Litigation


Hermès is a leading international disputes lawyer with over 25 years’ experience representing major organisations and entities on complex matters, including international (re)insurance, particularly in Latin America, the Mediterranean basin, MENA, West Africa and Asia. He is qualified both as a barrister and solicitor of England and Wales and has litigated, arbitrated or mediated in more than 60 countries. He has experience as an arbitrator and also has rights of audience in the MENA region and Latin America. Hermès also has experience in international securities litigation and is instructed on the leading actions on cross border cases in this area.  He is also advising international companies on new cyber exposures and resulting disputes.

Hermès has led teams handling major litigation relating to financial institutions, liability, construction, engineering and energy. He also advises clients on regulatory and corporate matters.

Hermès is fluent in seven languages, including Spanish and Portuguese. He is a Vice President of the Insurance Institute of London and drafts critical wordings for the international market. He also works closely with various bodies, including the Ministry of Justice, the Bar Council and the Law Society, in promoting English law and jurisdiction worldwide. He advises international organisations on human rights, including on the rights of children and the demobilisation of child soldiers.

Hermès is co-author of a key textbook on reinsurance law, co-author of the book "War Risks and Terrorism", and contributor to textbooks on conflicts of law, property risks and mass torts. Furthermore, he has also contributed to the “Getting the Deal Through: Insurance Litigation 2018” Guide and regularly writes on issues relating to cyber-attacks. Hermès lectures and publishes widely on significant international conflicts of law matters and on specialist risks and legal and forensic investigations.


Called to the Bar 1985; Middle Temple; Clifford Chance; Clyde & Co; Partner DAC Beachcroft LLP 2008; Partner Signature Litigation 2014.


English, Spanish, Portuguese, French, German, Italian and Greek.


Vice President of the Insurance Institute of London; Member of the IBA; Member of the Brazilian Chamber of Commerce; Member of the Brazil Canada Arbitration Chamber, Member of the Oil, Petrochemical and Energy Risks Association; Member of the Chilean Chamber for Construction.


Cambridge; LSE; St. Anna Academy of Post Doctoral Studies.

London: Insurance

Insurance and reinsurance litigation

Within: Leading individuals

Hermes Marangos - Signature Litigation LLP

Within: Insurance and reinsurance litigation

Disputes boutique Signature Litigation LLP advises insurers and reinsurers on public and professional liability, energy claims and property damage arising from natural disasters and other catastrophes . The firm stands out for its Latin American expertise, with the 'outstanding' Hermes Marangos handling a variety of high-profile matters involving Brazil or Mexico.

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