Olivia Debaty

Olivia Debaty

Professional Background

Olivia Debaty holds a Master’s degree in Accounting, Control and Audit (CCA) from the IAE Lyon. She joined Forvis Mazars in Lyon in 2011 and obtained her qualification as a Certified Public Accountant and Statutory Auditor in 2019.

Career & Experience

Olivia supports a wide range of clients, primarily SMEs, mid-sized companies (ETIs), and corporate groups, in both recurring and ad hoc assignments.

She assists organizations with complex accounting and financial environments, including:

  • Financial consolidation
  • Mergers and acquisitions (post-deal integration)
  • Tax consolidation (group tax integration)
  • Multi-GAAP / multi-accounting framework environments
  • French subsidiaries of international groups
  • Parent companies with international subsidiaries
  • Accounting support for financial departments

Areas of Expertise

  • Accounting expertise and financial advisory
  • Group consolidation and reporting
  • Complex accounting environments (multi-standards)
  • Corporate restructuring and integration support
  • Financial process support for finance departments
  • International group accounting coordination

Professional Approach

Olivia is recognized for:

  • Strong technical expertise in complex accounting structures
  • Ability to support both local and international group environments
  • Practical, operational support to finance teams
  • Close relationship with SMEs and ETIs

Institutional Engagement

Olivia is also an elected member of the Regional Council of the Ordre des Experts-Comptables Auvergne Rhône-Alpes, where she contributes to the regulation and development of the accounting profession in the region.

Olivia Debaty combines strong accounting expertise with hands-on advisory capabilities, supporting SMEs and corporate groups within Forvis Mazars.

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