United Kingdom's Competition Authority - CMA (London)

Michael Grenfell

United Kingdom’s Competition Authority - CMA (London)
Executive Director, Enforcement

Dr Michael Grenfell is an Executive Director on the Board of the Competition and Markets Authority – the UK’s primary competition and consumer agency – where he is responsible for enforcement of competition and consumer laws. He joined the CMA in January 2014, where he was initially a Senior Director for competition in the regulated sectors, before moving to his current position in July 2015. Before he joined the CMA, he was a solicitor in private practice for 25 years, specialising in UK and EU competition law and sector regulation, including, from 1998 to 2013, as a Partner at the international law firm Norton Rose Fulbright. He has written and broadcast widely on competition, regulatory and consumer issues, and was co-author of Coleman and Grenfell on The Competition Act 1998 (OUP). He has an M.A. in history and law from Cambridge University, and a Ph.D in political thought from the London School of Economics.

Auteurs associés

United Kingdom’s Competition Authority - CMA (London)
United Kingdom’s Competition Authority - CMA (London)
United Kingdom’s Competition Authority - CMA (London)
United Kingdom’s Competition Authority - CMA (London)
United Kingdom’s Competition Authority - CMA (London)


548 Bulletin

Jay Modrall, Michael Grenfell The COMESA Court of Justice rules that a merger filing notification to COMESA’s Competition Commission will remove the need for filings to national authorities in the Member State (Polytol)


In much the same way that, within the European Union, a merger filing (notification) to the European Commission removes the need for filings to national competition authorities in the EU Member States, so too the COMESA. Court of Justice has ruled that a merger filing (notification) to COMESA’s (...)

Michael Grenfell The South African Competition Authority rules that security of supply justifies exemption from the prohibition of anti-competitive agreements in the energy sector (South African Petroleum Industry Association)


Competition are traditionally reluctant to recognise “crisis management” as a justification excusing restrictive agreements between competitors. In 2008, for example, the EU Court of Justice ruled that an agreement between the 10 main beef producers in the Republic of Ireland to co-ordinate their (...)

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