Marie-Hélène Giannopoulos

 Marie-Hélène Giannopoulos

Professional Profile

Marie-Hélène Giannopoulos is a Partner at Forvis Mazars France, within the IS Audit & Analytics practice, specializing in information systems audit and data-driven risk management.

A graduate of Université Paris-Dauphine, she joined the firm in 2013, beginning her career in information systems audit (IS Audit).

Career Path & Expertise

Marie-Hélène has developed strong expertise in IT audit, risk management, and data analytics, supporting large organizations in strengthening their control environments.

Her sector experience includes:

  • Banking
  • Insurance
  • Real estate

She supports clients in designing and improving risk management frameworks, with a strong focus on digital systems, data integrity, and regulatory compliance.

She became a Partner in France in 2025.

IS Audit & Digital Transformation

Within the IS Audit & Analytics practice of Forvis Mazars, Marie-Hélène plays a key role in:

  • Leading complex IT audit and analytics engagements
  • Strengthening digital risk management approaches
  • Integrating data analytics into audit methodologies
  • Supporting the development of innovative digital solutions

Her work contributes to the transformation of audit through technology and data-driven insights, enhancing both efficiency and risk coverage.

About Forvis Mazars

The groups Mazars and Forvis officially merged on 1 June 2024, forming Forvis Mazars, a leading international audit, tax, and advisory organization.

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Marie-Hélène Giannopoulos