Séverine Esser Bonjean
Professional Background
Séverine Esser Bonjean is a Partner at Forvis Mazars and a member of the Executive Committee since 2025. She specializes in enterprise transformation and financial advisory, supporting senior executives—particularly CFOs—in designing and implementing strategic change programs.
She joined Mazars in 2022 to lead the Consulting activities in France and Western Europe, after more than 25 years of experience at EY, where she progressed from Audit to Consulting and led the Finance Consulting practice.
Transformation & Advisory Expertise
Séverine supports international organizations in large-scale transformation programs covering:
- Corporate strategy design and execution
- Finance function transformation
- Organizational redesign and change management
- Integration of human, organizational, and technological dimensions
Her approach focuses on turning transformation initiatives into fully embedded enterprise-wide programs.
Sector Expertise
She primarily works with multinational companies operating in:
- Luxury goods
- Consumer goods
- She also contributes to consulting activities across:
- Industry
- Services
- Healthcare
- Public sector
- Leadership Role
As a member of the Executive Committee, she is responsible for:
- Advisory & Consulting
- Financial Advisory Services (FAS)
- Tax services
- Legal services
She plays a key role in shaping Forvis Mazars’ consulting strategy across Europe.
Areas of Expertise
- Enterprise Transformation & Strategy Execution
- Finance Function Transformation (CFO Advisory)
- Organizational Change Management
- Large-scale Consulting Programs
- Luxury & Consumer Goods Sector Advisory
- Cross-functional Advisory (Finance, Tech, HR)
- Executive-level Transformation Leadership
- Multi-service line management (Advisory, Tax, Law, FAS)