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For 40 years, Derriennic built its success on a unique approach to its practice.
Composed of lawyers who are primarily experts in IT, Derriennic is a pioneer in this niche field. The firm has also expanded its activity into other areas of law (business law, employment law, insolvency proceedings, construction and real estate law, compliance, corporate law, etc.).
Whether working with major corporations or smaller economic operators, we provide each of our clients with the solutions best suited to their needs, fostering long-lasting relationships built on constant commitment and continuous monitoring.
Derriennic Associés has built its success on its teams’ ability to innovate. Facing the challenges of new technologies, our firm combines high-level legal expertise with strong creativity to develop innovative solutions that give you a competitive edge and keep you one step ahead.
The diversity of skills and experience within the firm's lawyers enables us to provide comprehensive support for all your legal matters. Derriennic Associés draws on its strong technological culture to develop innovative strategies and optimise your practices.
The cohesion within Derriennic Associés' teams is built on strong shared values. Whether working with major corporations or smaller economic operators, the firm provides each of its clients with the most suitable solutions, fostering long-lasting relationships based on constant commitment and continuous monitoring.
- Derriennic Associés maintains its Band 2 position in the TMT ranking (Chambers France 2025).
- François-Pierre Lani maintains his Band 2 position in the individual ranking for TMT: Information Technology.
- Alexandre Fievée enters the Band 3 in the individual ranking for Data Protection
Leading Firm 2025
Legal 500 ranks Derriennic Associés as :
- « Tier 1 » in the category « Industry focus : IT, Telecom and Internet » ;
- « Tier 2 » in the category « Data Privacy and Data Protection » ;
- « Tier 3 » in the category « Intellectual property : Copyright » ;
- « Tier 4 » in the category « Intellectual property : Trade marks and designs ».
With Europe's economic and political development, providing legal assistance to businesses and individuals now requires a European dimension.
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