Stefano Trento

"Stefano’s evidence was incredibly well supported. All-round a class act." Lexology Index 2024

Stefano Trento is a Senior Vice President at Compass Lexecon based in Madrid. 

He has over fifteen years of experience in competition economics, specialising in competition law disputes, including litigation and arbitration across Europe and beyond.

Stefano has advised legal teams in a wide range of disputes involving alleged breaches of Articles 101 and 102 TFEU, including follow-on damages actions. In his litigation work, he has supported clients in proceedings before the UK Competition Appeal Tribunal, High Court, Court of Appeal, and Supreme Court, as well as in several other European jurisdictions. He has also advised in complex antitrust investigations before the European Commission and national authorities, and in judicial reviews of regulatory measures.

His arbitration experience includes multiple ICC, SCC, LCIA, and UNCITRAL cases concerning exploitative and exclusionary conduct, licensing practices, and long-term contracts, often in regulated sectors such as energy and telecoms.

Before joining Compass Lexecon, Stefano held a faculty position in economics at the Universitat Autònoma de Barcelona and was an affiliated professor at the Barcelona Graduate School of Economics.

"He was excellent when giving oral evidence. Clients and all lawyers involved were very impressed." Lexology Index 2025

"Technically excellent and robust in his analysis and when giving oral evidence. Carried weight with the Tribunal." Lexology Index 2024

"Exceptionally detailed and forensic approach to a large and complex area which is critical to the success of the claims." Lexology Index 2024

"He brings communication, strategy and technical excellence." Lexology Index 2024

"Highly competent, speed of service, excellence." Lexology Index 2025

"Precision, competence, speed, strong knowledge of competition economics matters." Lexology Index 2025

"Stefano's clear head, great technical knowledge and structure in ideas were very valuable." Lexology Index 2024

"Working with him is easy; he makes hard things seem easy and understandable." Lexology Index 2024

"He has an excellent ability to distil and complex economic analysis in a clear and easily digestible way." Lexology Index 2025

"He is reliable, responsive and very easy to work with." Lexology Index 2024

"He is thoughtful and always happy to discuss and explain his approach, taking account of factual evidence and client feedback to tailor economic modelling to ensure that the results closely mirrors the facts."  Lexology Index 2025

"He (and his team) are very responsive and work well to demanding deadlines and agreed budgets." Lexology Index 2025

"Intellectually very strong with a great grasp of the technical economic questions." Lexology Index 2025

"He also had amazing attention to detail in a case involving many parties and many many different experts." Lexology Index 2025

"Subject matter expert. Technically excellent. Flexibility in thought and approach. Collegiate." Lexology Index 2024

"I particularly like how Stefano comes across in the 'economists hot tub'. He comes across as confident, knowledgeable and also reasonable / fair. He is transparent and clear where matters would benefit from input from experts in other disciplines." Lexology Index 2024

"He is patient in explaining the economic concepts and arguments to the legal team." Lexology Index 2024

"Compass Lexecon are simply superb - they are the market leading economists when it comes to competition claims in the CAT. Stefano Trento was equally brilliant as our expert; he is very honest and conscientious - two important traits in an expert - and incredibly hard working." Lexology Index 2025

"Stefano is very practical, responsive and thorough. He understands issues and the implications quickly and provides pragmatic solutions." Lexology Index 2024