Department profile
Jones Day

Competition Law

UK Guide 2026 : London (Firms)

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Jones Day

Rankings

Chambers Review

Provided by Chambers

Competition Law - London (Firms)

Band 5

What the Team is Known For

Jones Day's London office handles a broad range of competition law matters, including advising clients on obtaining merger clearance approval from the CMA and representing clients in sector studies and investigations into allegations of anti-competitive behaviour before various UK regulatory authorities. Team members offer additional experience in competition litigation matters, often defending high-profile financial sector clients in damages actions. The team has experience acting alongside the law firm's other offices in Europe on multinational matters.

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Work Highlights

Provided by Chambers

  • Jones Day advised Eni on merger control issues following its USD2.3 billion joint acquisition with Vår Energi of the oil and gas producer Neptune Energy.

Strengths

Provided by Chambers

  • Jones Day really takes the time to understand us as a client so its questions and advice is always targeted and tailored, as well as being super commercial.

    Competition Law respondentUK

  • Jones Day has an excellent competition litigation team that provides consistently high quality advice.

    Competition Law respondentUK

  • The level of client service is exceptional. It's above and beyond what we see from other firms. The lawyers truly do go the extra mile and make us their number one priority.

    Competition Law respondentUK

  • The lawyers are technically excellent and are great people to work with.

    Competition Law respondentUK

Notable Practitioners

Provided by Chambers

  • Nicholas Cotter
    Nicholas Cotter

    Nicholas Cotter

    Nicholas Cotter is particularly known for his experience in litigation matters. He has notable experience defending clients in high-profile follow-on damages cases, particularly in the financial services sector.

    • Nicholas Cotter is vastly experienced in litigation, so you can have confidence in his experience that he knows how far to take to take things. He is very pragmatic and efficient.

      Competition Law respondentUK

    • My career and life would be incredibly challenging without him. I can call him up any time. He is super commercial and the client service is wonderful.

      Competition Law respondentUK

    • He is calm in a stressful situation - he's been there before and knows what to do. He helps take the temperature down which means the decisions getting made are better.

      Competition Law respondentUK
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  • Mark Jones
    Mark Jones

    Mark Jones

    Mark Jones often advises clients on merger clearance mandates, including acting on CMA investigations and FDI notifications. He also has experience representing clients in CMA market inquiries and behavioural investigations.

    • Mark Jones' advice is super user-friendly and commercial.

      Competition Law respondentUK

    • He is a pretty experienced guy and has a good knowledge of the workings of the UK system. He focused on the issues that really need dealing with.

      Competition Law respondentUK

    • Mark Jones' expertise and responsiveness is excellent.

      Competition Law respondentUK
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Ranked Individuals at Jones Day (2)

London (Firms)

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