Natacha Lesellier


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Alizé Chaaoui and Sarah Lorsold
Phone: +33 (0)1 56 62 30 27 / +33 (0)1 56 62 75 35
Following 15 years’ experience as a senior ethics practitioner within a leading multinational, Natacha Lesellier has developed a recognised expertise in the areas of business ethics, compliance, diversity & inclusion, human rights, ESG and CSR generally. 

She advises and assists her clients, whatever their size, type of industry or level of advancement, on all their various needs (strategy, risk assessment, policies and procedures, communication and training, whistleblowing mechanisms and internal investigations). 

Her experience of the corporate world’s various stakeholders also allows her to advise her clients on the « soft law » expectations in these areas.

Totally bilingual, she is a choice contact point for foreign companies wishing to deploy their programs within their French entities and for French companies seeking to deploy their programs internationally. 

Natacha Lesellier began her career in private practice at Gide Loyrette Nouel in 1995 before moving to L’Oréal in 2001. 

She joined Flichy Grangé Avocats in 2021. In 2023 she has been appointed as a Vice-President of the French Compliance and Ethics Association, Le Cercle de la Compliance

She holds a double diploma in Private Law from Paris 1 Sorbonne/King’s College London and a master’s degree in International Economic Law from Paris 1 Sorbonne.

Admitted to the Paris Bar, Natacha is also a Solicitor in England and Wales (non-practicing).