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.