Charlie Caher is a partner in the Firm's Litigation/Controversy Department, and a member of the International Arbitration Practice Group. He joined the Firm in 2008. Mr. Caher is based in the London office, where he practices International Arbitration and English High Court Litigation.


Mr. Caher has represented clients in numerous institutional and ad hoc arbitrations under all major arbitral institutions, and in most major civil and common law jurisdictions, including London, Paris, Stockholm, Singapore, The Hague, Bermuda and Brunei. Mr. Caher's international commercial arbitration practice covers a wide range of industries, with a particular focus on energy, construction, insurance, financial services, telecommunications and aerospace.

In addition to his commercial  arbitration practice, Mr. Caher has also represented a major international construction company in a series of complex and high profile construction litigation disputes before the English High Court and Court of Appeal, and represented the Sudan People's Liberation Movement/Army (SPLM/A) in the public international law Abyei Arbitration.

Prior to joining WilmerHale, Mr. Caher practiced in the London and Singapore offices of another international law firm and has been a qualified solicitor since March 2007.

Professional Activities

Mr. Caher has been an adjunct professor at Pepperdine Law School's London campus, where he taught the International Commercial Arbitration course.

Mr. Caher has gained his Higher Rights of Audience and is a qualified Solicitor-Advocate (Higher Courts Civil Proceedings).

Mr. Caher is a member of the ICC’s Arbitration and ADR Committee (UK), the Chartered Institute of Arbitrators and an executive member of the London Chapter of Arbitration Ireland.


    • Successfully representing a major US oil and gas exploration and production company in a US$ 300 million ICC arbitration sited in London regarding a drilling rig dispute in West Africa.
    • Successfully representing a European supplier of technologies and services in a US$ 150 million ICC construction arbitration sited in Lima arising from a hydro power project in South America.
    • Successfully representing a major SE Asian oil and gas exploration and production company in relation to two related ICC and UNCITRAL disputes sited in Singapore with a combined value of US$ 3 billion.
    • Successfully representing one of the shareholders in a US$ 100 million UNCITRAL ad hoc arbitration sited in Singapore concerning a failed telecommunications joint venture in SE Asia.
    • Successfully representing a Brazilian ethanol producer in a US$ 100 million ICC arbitration sited in London concerning a dispute arising out of the construction of an ethanol plant in Brazil.
    • Successfully representing a major European oil and gas company in a complex US$ 2 billion ICC gas price review arbitration sited in Stockholm.
    • Successfully representing a prominent US university in a US$ 120 million UNCITRAL ad hoc arbitration sited in London concerning a disputed gift donation.
    • Successfully representing a US confectionary producer in a US$ 200 million SIAC arbitration sited in Hong Kong with a Chinese counterparty arising from a M&A dispute.
    • Successfully representing a world-leading car manufacturer in a US$ 2 billion ICC arbitration sited in London.
    • Successfully representing a valuation agent in a US$ 140 million LCIA arbitration sited in London regarding a liability dispute arising from the collapse of a hedge fund.
    • Successfully representing a US oil company in a series of parallel LCIA political risk insurance disputes against multiple insurers arising from an expropriation event in Latin America.
    • Successfully representing a North American company in a UNCITRAL ad hoc arbitration sited in Bermuda concerning insurance coverage disputes.


  • Named a Thomson Reuters Stand-out Lawyer – independently rated and selected by clients
  • Featured as a leading arbitrator in Who's Who Legal: Arbitration - Future Leaders 2018–2021—a guide profiling the foremost practitioners in the arbitration community. Clients cite him as “a brilliant lawyer” with “a sharp analytical mind and excellent strategic skills,” and a "highly intelligent and incredibly thorough lawyer" who is "very responsive and able to comprehend and process complicated issues."
  • Repeatedly listed as a “Next Generation Lawyer” for International Arbitration by The Legal 500 UK, most recently in the 2023 rankings. Mr. Caher was described as “incredibly intelligent.”
  • Nominated as an Acritas Star lawyer for 2018 and 2020—an accolade for lawyers who have been independently nominated by clients as one of the most outstanding lawyers they have worked with.
  • Named in the 2021 edition of Lawdragon's Global Litigation 500—a guide featuring attorneys who specialize in international arbitration, public international litigation and global controversies.

Insights & News


  • Education

    • Graduate Diploma, Law, BPP Law School, 2004

      with Commendation
    • Diploma, Legal Practice, BPP Law School, 2003

      with Commendation
    • MA (Oxon.), Modern History, University of Oxford, 2002

  • Admissions

    • England and Wales, Solicitor