Deepaloke Chatterjee advises on the full spectrum of EU, UK and international competition/antitrust law, including merger control, foreign investment, cartel and other anti-competitive conduct investigations, abuse of dominance, and technology regulation. Based in London and working extensively across Brussels and other key jurisdictions, he advises clients on cross-border antitrust matters.

Deepaloke regularly represents clients on high-profile and complex transactions requiring Phase 1 and Phase 2 merger clearances, including before the UK Competition and Markets Authority (CMA) and the European Commission (EC). He has particular experience in negotiating merger remedies with competition authorities. He also completed an extended secondment to the CMA, where he worked on several significant Phase 1 mergers and gained first-hand insight into the authority’s decision-making and enforcement approach, including serving as the ‘Devil’s Advocate’ on two Phase 1 mergers.

Deepaloke has advised on cartel and abuse of dominance investigations involving novel and strategically significant issues, and has represented clients before the CMA and the EC in oral hearings and during inspections.

Deepaloke advises major corporates, financial sponsors and portfolio companies across a broad range of sectors, including pharmaceuticals, consumer goods and retail, financial services, and technology. He publishes and speaks regularly on a broad range of competition law issues, and his thought leadership has been recognised globally. His article, “The Signalling Effect”, was awarded Best Business Article in the Concerted Practices (Cartels) category at the Concurrences Antitrust Writing Awards 2026 in Washington, DC. He is currently an Associate Editor of the European Health & Pharmaceutical Law Review and serves on the judging panel for the International Moot Court Competition on Antitrust Law hosted annually by King’s College London.

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