Guiding Your business to new horizons
By your side, every step of the way.
Commercial Litigation
Our experience in commercial litigation is as old as our firm.
Over the years, we have been involved in the most high-profile litigation and arbitration matters, representing our clients in contract law disputes, civil liability litigation, recognition and enforcement matters, as well as tort claims.
We advise clients in pre-litigation situations apply for provisional remedies and conservatory measures, and represent our clients in main proceedings before the court of instance, in appeal and before the Cour de cassation.
KEY CONTACT
+Marc KLEYRSenior Partner
+Donata GRASSOPartner
+Emilie WATYPartner
+François COLLOTPartner
+Henry DE RONPartner
+Muriel PIQUARDCounsel
+Vincent ALLENOCounsel
Recognitions
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KLEYR GRASSO recognised once again by The Legal 500 EMEA 2026
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Chambers Europe 2025
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Chambers Europe 2024
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Legal500 EMEA, 2024
Recommended lawyer, Real Estate and Construction
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Legal500 EMEA, 2024
Leading individual, Real Estate and Construction
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Chambers Europe 2024
Lawyer top ranked Eminent Practitioners, Dispute Resolution
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Chambers Europe 2024
Lawyer top ranked band 2, Dispute Resolution
Related News
Read the latest related news from our experts or explore our full insights which cover new laws, bills, and ongoing developments.
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Consistent excellence and client trust reaffirmed in The Legal 500 EMEA 2026 edition
KLEYR GRASSO is pleased to announce its continued recognition in The Legal 500 Europe, Middle East & Africa 2026, reaffirming the firm’s consistent excellence and the trust placed in it by clients…
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KLEYR GRASSO reaffirmed as a Leading Law Firm in Luxembourg by Chambers Europe 2026
KLEYR GRASSO is proud to announce its continued recognition in the Chambers Europe Guide 2026, reaffirming the firm’s position among the leading law firms in Luxembourg.








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