A track record built across jurisdictions and sectors.

Background in leading international advisory firms, combining investigative expertise, operational leadership and practice development experience.

Leadership experience
Cyril Magnien — CMA Advisory

Cyril previously served as Associate Partner in a Big 4 firm and Managing Director in a top tier boutique. He recently led the development of the forensic practice in Luxembourg within a Big 4 firm. He built and structured the service offering from inception, managed multidisciplinary teams and advised clients on complex investigations involving financial, operational and reputational dimensions. This experience combines entrepreneurial drive, operational leadership and deep technical expertise.

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Types of organisations supported

  • International financial institutions
  • Multinational corporates
  • Public and semi-public bodies
  • Regulated environments

Often in contexts involving legal advisers, boards and senior management.

Nature of engagements

  • Internal and external fraud investigations
  • Harassment investigations
  • Cross-border inquiries
  • Bribery and corruption matters
  • Misconduct cases
  • Governance and control weaknesses
  • Support in regulatory or litigation-related environments

Jurisdictions worked in

  • Luxembourg (primary base)
  • France
  • Switzerland
  • United Kingdom
  • Africa (multiple countries)
  • Asia
  • Russia and Eastern Europe
  • United States of America

Professional profile

Over 20 years of experience in forensic investigations, fraud and compliance across multiple jurisdictions. Former Associate Partner and forensic practice leader in Luxembourg. Experience in building and managing senior forensic teams. Recognised for independence, rigour and discretion in high-stakes environments.

Over 20 years of cross-border engagements across Europe, Africa, Asia and beyond — in some of the most complex and sensitive environments.

Engagements across global markets

Europe

Luxembourg, France, Switzerland, UK, Germany, Belgium and other European countries.

Africa

Numerous engagements across Sub-Saharan Africa, coordinating multi-stakeholder investigations.

Asia

Cross-border matters involving Asian counterparts and regulatory environments.

Russia & Eastern Europe

Engagements in complex jurisdictions requiring specific cultural and operational understanding.