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Charles Russell Speechlys LLP

Work 020 7203 5000
Fax 020 7203 0200
Cheltenham, Doha, Dubai, Geneva, Guildford, Hong Kong and 5 more

John Sykes

Work 020 7203 5131
Charles Russell Speechlys LLP

Work Department

Litigation & Dispute Resolution, Energy & Natural Resources, Financial Services, Private Wealth, Technology, Media & Telecommunications


John is a recognised as a leading litigator for UK and international dispute resolution and specialises in commercial litigation, arbitration and mediation. He is a specialist in corporate dispute resolution currently working with companies and individuals in shareholder and joint venture disputes, director duties, Share Purchase Agreement claims, partnership and claims of corporate fraud. International work this year has included work in the USA, Sierra Leone, Zambia, France, Norway and the Middle East. John acted for the successful Respondent in the leading case on share valuation Irvine v Irvine.

Additionally, John acts for global technology firms in complex technology development dispute and he is currently working on a cross border trade agreement between France, the US and England, claims regarding installation of smart meter technology in homes and between leading mobile telephony operators.

John's work in financial services includes the multi billion dollar Awal litigation, complex aviation financing, and enforcement of loan agreements. John works for early and successful resolution of client’s dispute using the most cost effective tools of litigation and mediation.

John is admitted to practise in England and Wales and has experience of the courts of Bahrain, Saudi Arabia, USA, France, Scotland, Dubai, Cyprus and Arbitral Bodies including ICC and LCIA.

Experience highlights::

  • Irvine v Irvine; shareholders dispute which set the standard for minority discount on valuation of shares
  • Hadley Keeble and Norman v Gary Kemp; the Spandau Ballet litigation
  • De Beers v Atos EWHC 3276 (TCC); limitation of loss in IT development
  • Awal Bank v Various; the world’s largest fraud case
  • National Bank of Greece (Cyprus) Limited v Ioanna Christofi Republic of Uzbekistan v Oxus Gold
  • Confidential arbitration includes wind farms, data sites, minority shareholder claims, complex technology and claims under Bilateral Investment Treaties

London: Dispute resolution

Commercial litigation

Within: Commercial litigation

Charles Russell Speechlys LLP merged with sports law boutique Couchmans in 2018. Recent cases for the practice include disputes in the technology, telecoms, financial services and mining sectors, as well as energy, aviation, retail and sporting regulatory matters. It acted for Cyclone Promotions in its claim against a professional boxer for breach of a promotional contract. Stewart Hey heads the firm's commercial dispute resolution department; John Sykes  is well known for shareholder litigation; and Edward Craig heads the firm's retail and leisure sector group, but his broader commercial contentious practice includes advising sports regulatory bodies.

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London: Projects, energy and natural resources

Mining and minerals

Within: Mining and minerals

The full-range mining practice at Charles Russell Speechlys LLP services a client roster of mining companies, banks and investors in commercial law, corporate M&A, dispute resolution and project financing issues. On the contentious front, one of the main names to note is John Sykes who specialises in international commercial disputes but also handles arbitration and mediation cases. Clients rely on Chris Putt for corporate finance and complex governance matters. Adam Carling and Clive Hopewell departed to join Bird & Bird LLP .

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Legal Developments by:
Charles Russell Speechlys LLP

  • Annual reports and annual general meetings

    With the Summer annual general meeting (AGM) season now on the horizon, many company secretaries and general counsel will be considering the preparation for their AGMs and the publication of their annual reports. ‚Ä©
    - Speechly Bircham

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