Stéphanie Tombling Partner, International Arbitration and Litigation

Partner, International Arbitration and Litigation Stéphanie Tombling

Professional Background

Stéphanie Tombling is a testifying damages expert specializing in the quantification of economic losses in high-value commercial disputes, both in litigation and international arbitration across multiple jurisdictions.

She has testified as an expert in Europe and Asia, and has extensive experience supporting complex cross-border disputes.

She holds a degree from the University Jean Moulin Lyon 3 in German Linguistics and is a Fellow of the Association of Chartered Certified Accountants (ACCA).

She is fluent in French, English, and German.

Career Path

Stéphanie began her career in London at a forensic boutique specialized in insurance and litigation. She then joined Navigant, where she focused on international arbitration matters.

She later worked at Secretariat, where she co-developed the firm’s damages practice in London, before joining Forvis Mazars in Paris.

Expertise & Experience

With over 20 years of experience, Stéphanie has worked on complex disputes across a wide range of sectors, including:

  • Construction
  • Oil & gas
  • Power and energy
  • Manufacturing
  • Transportation

Her expertise includes:

  • Quantification of economic damages
  • Lost profits analysis
  • Business interruption loss assessment
  • Expert witness testimony in litigation and arbitration
  • Support to accounting expert witnesses in complex cases

Professional Recognition

She is:

  • A Practising Member of the Academy of Experts
  • Listed on the expert panels of CMAP (Paris Mediation and Arbitration Centre) and Sport Resolutions

Areas of Expertise

  • Forensic accounting & damages quantification
  • International arbitration & litigation support
  • Lost profits and business interruption analysis
  • Expert witness testimony
  • Cross-border dispute resolution
  • Multi-sector forensic investigations

Stéphanie Tombling combines deep forensic accounting expertise with extensive international arbitration experience, providing expert analysis and testimony in complex financial disputes worldwide.

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