Grygoris Geffray Associé – Expertise comptable

Associé – Expertise comptable Grygoris Geffray

Professional Background

Grygoris Geffray qualified as a Chartered Accountant in 2019. He began his career in 2008 at the accounting firm Heleos, where he developed his expertise in supporting small and medium-sized businesses.

He became a Partner at Heleos in 2019. Following the integration of Heleos into Mazars in 2024, he was appointed Partner at Forvis Mazars France.

Expertise & Experience

Grygoris specializes in supporting TPEs and SMEs and their business leaders, with a strong focus on the retail sector.

His areas of expertise include:

  • Accounting and financial advisory for SMEs
  • Support for business owners and entrepreneurs
  • Retail sector accounting and advisory services
  • Development of local accounting practices
  • Contribution to regional growth in Rennes and Brittany

He plays an active role in strengthening Mazars’ accounting expertise and presence in Western France.

Areas of Expertise

  • SME accounting advisory
  • Retail sector expertise
  • Chartered accountancy services
  • Business owner support
  • Regional practice development (Rennes / Brittany)
  • Financial management for small businesses

Grygoris Geffray combines strong SME advisory experience with sector-specific retail expertise, contributing to the development of Mazars’ accounting activities in Brittany.

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