Michael Grenfell

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

Michael Grenfell took up his role as Executive Director, Enforcement, at the Competition and Markets Authority (CMA) on 15 July 2015. Working closely with the Chief Executive, and as a member of the CMA Board, Michael’s role includes ensuring strategic leadership of the CMA’s enforcement portfolio.


Senior Director, Sectoral Regulation and Concurency at Competition and Markets Authority

Linked authors

Norton Rose Fulbright (Brussels)
Ministere des Finances (Paris)
Unilever (Brussels)
French Competition Authority (Paris)
Compass Lexecon (Brussels)
Orrick, Herrington & Sutcliffe (Paris)
ELIG Gürkaynak Attorneys-at-Law (Istanbul)
German Competition Authority (Bonn)


484 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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