Juliette Decoux-Guillemot Associée
Professional Background
Juliette Decoux Guillemot is a Chartered Accountant and Statutory Auditor, graduated from Université Paris-Dauphine (Master CCA). She joined Forvis Mazars in 1995, where she began her career in audit and progressively took on senior leadership responsibilities within the firm.
She was appointed Partner in 2005, and has since built a long-standing career spanning both French and international leadership roles.
Leadership Roles & Governance Responsibilities
Throughout her career, Juliette has held several key positions, including:
- Head of the Energy & Utilities sector (France and Group level)
- Member of the Mazars France Executive Committee (2019)
- Head of the Audit Industry & Services Management Unit
- Vice-Chair of the Group Governance Board (2024)
In her current role, she contributes to the firm’s global governance, strategic oversight, and operational direction, supporting the long-term development of Forvis Mazars internationally.
Sector Expertise
Juliette Decoux Guillemot specializes in the audit of large corporate groups, particularly in the following sectors:
- Energy
- Defence
- Automotive
She supports clients on complex audit, advisory, and internal control assignments, combining technical excellence with a strong strategic perspective.
Areas of Expertise
- Audit of Large International Groups
- Energy & Utilities Sector Leadership
- Defence & Automotive Industry Expertise
- Group Governance & Strategic Oversight
- Internal Control & Risk Management
- International Audit Coordination
- Corporate Governance & Executive Leadership