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Website 0001 Mark Helyar

Mark has a particular specialisation in the use of protected cell companies (PCCs) for investment funds and insurance purposes and assisted in drafting the 2006 Guernsey law relating to incorporated cell companies. He has substantial expertise in corporate, commercial and investment fund practices.

Mark is regularly instructed by foreign regulatory authorities and governments on the implementation of segregated cell company legislation.


  • Advocate - Guernsey
  • Barrister - England & Wales (non-practising)
  • Accredited commercial mediator


  • 'Leader in their field' - Chambers UK, Europe and Global 2019, 2018 and 2017
  • 'Leading individual' - Legal 500 2016
  • 'Expert consultant' in capital markets, investment funds, banking and mergers & acquisitions - IFLR1000 2022, 2021
  • 'Leading Lawyer' in banking, capital markets, investment funds, corporate and mergers & acquisitions - IFLR1000 2016
  • Is a very innovative thinker. He very much finds ways of doing things rather than reasons not to. He is very knowledgeable about the local regulatory environment.

    Chambers & Partners

  • Very well known in the insurance world with a good practice in that area.

    Chambers & Partners

  • Very experienced, consummate professional.

    Legal 500