Anne-Sophie Tonin named in the Lexology Index Construction 2026

Lead up is pleased to announce that Anne-Sophie Tonin, partner at the firm, is recognised in the Future Leaders – Partners category of the Lexology Index: Construction 2026.
The ranking was published on 15 June 2026. The Future Leaders category identifies the practitioners recognised as the rising names in construction dispute resolution.
The recognition is individual. It reflects Anne-Sophie Tonin’s standing in construction litigation and arbitration, and it confirms Lead up’s place among the firms of reference for these disputes.
What is the Lexology Index: Construction?
The Lexology Index, formerly Who’s Who Legal, is an international legal directory. It has researched the legal market for almost thirty years. The Construction ranking lists the lawyers and experts recognised for handling complex, multi-jurisdictional construction disputes through litigation, mediation and arbitration.
The methodology draws on three sources. It combines peer review, feedback from clients and in-house counsel, and quantitative analysis used to corroborate that feedback. The Index ranks practitioners only, not firms.
The Future Leaders – Partners category
The Future Leaders category is reserved for practitioners aged 45 and under. It highlights the lawyers set to become leading names of the next generation. Within the Construction ranking, it distinguishes partners, associates and experts separately. Anne-Sophie Tonin is recognised as a partner, within the Future Leaders – Partners subcategory.
A recognised construction litigation and arbitration practice
Anne-Sophie Tonin advises and represents French and international clients in disputes across the construction, energy, infrastructure and industrial risk sectors. She conducts these matters before the French civil and commercial courts and in arbitration, under the rules of the ICC, ICSID, LCIA, CMAP and AFA.
Her practice stands out for its command of court litigation, technical expert evidence and arbitration, three dimensions frequently combined in construction disputes. It also encompasses alternative dispute resolution, in particular mediation and conciliation. Anne-Sophie Tonin works in French, English and Spanish, which allows her to support projects and disputes with an international dimension.
Why this matters for Lead up’s clients
Construction disputes combine technical, financial and procedural challenges. They often arise in a cross-border setting. They call for a simultaneous command of technical expert evidence, court litigation and arbitration.
This recognition confirms Lead up’s ability to support project owners, contractors and industrial groups in their construction disputes, from the pre-litigation stage to the enforcement of judgments and awards.
Key takeaways
- Anne-Sophie Tonin, partner at Lead up, is named a Future Leader – Partners in the Lexology Index: Construction 2026.
- The ranking was published on 15 June 2026.
- The Lexology Index ranks individual practitioners.
- The recognition reflects a respected construction litigation and arbitration practice.
Thank you
We thank the clients and peers who took part in the Lexology Index research process. We congratulate the other practitioners recognised in this edition.
Further reading
- See the full profile of Anne-Sophie Tonin.
- Explore Lead up’s expertise.
- Consult the Lexology Index: Construction.
FAQ
What is the Lexology Index: Construction 2026?
It is the Construction ranking of the Lexology Index, the international legal directory formerly known as Who’s Who Legal. It identifies leading lawyers and experts in construction dispute resolution.
What is the Future Leaders – Partners category?
It is the subcategory of the Future Leaders list reserved for partners. Reserved for practitioners aged 45 and under, it recognises partners identified as the rising names in their field. The Future Leaders list is separate from the Recommended, Highly Recommended and Thought Leader tiers.
When was the 2026 edition published?
On 15 June 2026.