Clifford Chance
Michael Grenfell specialises in antitrust and competition - offering expert advice on investigations, market studies and merger control - and also consumer protection laws.
In August 2024, Michael joined Clifford Chance, based in London, bringing with him a decade of experience from the UK’s Competition and Markets Authority (CMA). At the CMA, he had overall responsibility for the enforcement of competition and consumer protection laws, and was an Executive director on the CMA's Board. Prior to his role at the CMA, Michael was an antitrust partner at another law firm, where he provided strategic counsel on a broad spectrum of UK and EU competition, merger control, and regulatory issues.
During his time at the CMA, Michael gained extensive experience in various areas of competition and consumer protection law. His key responsibilities included:
- Leading major antitrust investigations and cartel investigations across many sectors.
- Heading consumer protection investigations to ensure compliance and safeguarding consumer interests.
- Acting as a decision-maker on merger control cases.
- Overseeing market studies focused on retail banking to analyse and address market dynamics.
- Coordinating efforts with global antitrust agencies to tackle cross-border issues.
- Developing policy recommendations for the UK's emerging laws on digital markets and consumer protection.
News and client work
Contact details
- Clifford Chance, London
- +44 (0)20 7006 1199
- Email me
- Follow me on LinkedIn
- Practice area Antitrust, EU & trade, M&A corporate
Career and qualifications
- M.A. (Hons) in history and law, University of Cambridge 1985
- Admitted as a Solicitor in England and Wales 1988
- Ph.D in political thought, London School of Economics 1991
- Partner, Norton Rose 1998
- Executive Director for Enforcement, UK Competition and Markets Authority 2015-2024
- Partner, Clifford Chance since 2024