Department profile
Slaughter and May

Competition Law

Global Guide 2026 : UK


Slaughter and May

Rankings

Chambers Review

Provided by Chambers

Competition Law - UK

Band 1

Band 1


What the Team is Known For

Slaughter and May stands out for its ability to handle high-profile merger clearance mandates, assisting clients with complex reviews before the CMA, as well as acting on highly contentious merger filings that involve disputes around jurisdictional issues. The law firm also offers notable experience in foreign direct investment filings and coordinates wider global regulatory approvals with counsel based in relevant jurisdictions. The team handles behavioural and market investigations for major clients and also boasts notable experience acting on abuse of dominance investigations and stand-alone claims brought in the UK courts. It enjoys a market-leading caseload of follow-on damages and collective proceedings and defending claims filed against various international clients.

Work Highlights

Provided by Chambers

  • Slaughter and May advised Vodafone in connection to both EU and UK merger control proceedings relating to a proposed joint venture between the client's and CK Hutchison Holdings' UK telecom businesses.

Strengths

Provided by Chambers

  • From Associates to Senior Counsel to Partners, the depth of knowledge across all levels was remarkable.

    Competition Law respondentGlobal
  • What distinguishes Slaughters from other firms is its commerciality. This can be a difficult balance but Slaughters has got it absolutely spot on. It makes acting on the advice so much easier.

    Competition Law respondentGlobal
  • Everyone at the firm that you deal with is very knowledgeable, with the ability to get on with things and provide really practical advice. They're the lawyers I trust the most to give a good view.

    Competition Law respondentGlobal
  • The firm has a huge resource of brilliant lawyers who they can deploy at a moment's notice.

    Competition Law respondentGlobal
  • Our matters have been complex and novel; Slaughter and May has shown significant skill in helping us successfully navigate them with changing dynamics and issues.

    Competition Law respondentGlobal

Notable Practitioners

Provided by Chambers

  • Band 1Claire Jeffs
    Band 1Claire Jeffs

    Claire Jeffs

    Claire Jeffs has a strong reputation for acting on high-profile merger clearance investigations before the CMA, assisting clients from the automotive, technology and telecommunications sectors. She co-chairs the firm's competition group and offers additional experience in appeals against competition law decisions before the General Court of the European Union.

    • Claire Jeffs is an excellent lawyer on big merger transactions. She builds strong client relationships and helps navigate them through the regulatory process.

      Competition Law respondentGlobal
    • Claire Jeffs provides excellent advice with a practical approach. She is trusted by those in her field.

      Competition Law respondentGlobal
    • Claire Jeffs has provided us with her great expertise. Her experience in complex matters and leading a team shows, as well as her responsiveness.

      Competition Law respondentGlobal
    • Claire Jeffs might be the best merger lawyer in the country. She is an outstanding technical lawyer who has hunger and ambition. She is driven and relentless and clients get a fantastic service.

      Competition Law respondentGlobal
  • Band 2Camilla Sanger
    Band 2Camilla Sanger

    Camilla Sanger

    Camilla Sanger defends clients in high-profile cartel follow-on damages cases, including representing them in class action proceedings. She also has experience acting for claimants.

    • She is a fantastic lawyer. She's very client focused and is really a people person, very approachable. I would always want her in my corner.

      Competition Law respondentGlobal
    • Camilla Sanger is the perfect partner; she is very, very technical but sees the bigger picture.

      Competition Law respondentGlobal
    • Camilla Sanger did a brilliant job.

      Competition Law respondentGlobal
    • Camilla Sanger is incredibly sharp on legal issues and is able to organise huge rambling fact-patterns incredibly efficiently.

      Competition Law respondentGlobal
  • Band 2Isabel Taylor
    Band 2Isabel Taylor

    Isabel Taylor

    Isabel Taylor has notable experience assisting high-profile technology sector clients with CMA investigations into allegations of anti-competitive behaviour.

    • Isabel Taylor is consistently very strong and is doing really interesting work. She is a high-end practitioner.

      Competition Law respondentGlobal
    • Isabel Taylor is a joy to work with.

      Competition Law respondentGlobal
    • I think she's fantastic and rate her very highly. She provides a great client service and is a great person to work with.

      Competition Law respondentGlobal
  • Band 4Elizabeth Jordan
    Band 4Elizabeth Jordan

    Elizabeth Jordan

    Elizabeth Jordan assists both claimants and defendants with competition litigation cases, including acting on collective actions and damages claims following cartel decisions.

    • Elizabeth Jordan is a very effective litigator. She can see where the work needs to be done and is good at focusing efforts to achieve positive outcomes.

      Competition Law respondentGlobal
    • She has good experience and technical expertise. She is also calm and measured in her advice.

      Competition Law respondentGlobal
    • Elizabeth Jordan sees things very clearly.

      Competition Law respondentGlobal
  • Band 4William Turtle
    Band 4William Turtle

    William Turtle

    William Turtle moves up in the rankings on the back of his focus on assisting clients with high-profile merger control filings, with further experience advising on NS+I clearances and CMA antitrust investigations.

    • William Turtle was fantastic. He is very commercial and has a huge depth of knowledge.

      Competition Law respondentGlobal
    • William Turtle is an incredibly talented lawyer and offers an excellent level of service.

      Competition Law respondentGlobal
    • William Turtle is a strong lawyer, who navigates complicated issues and is easy to deal with.

      Competition Law respondentGlobal
    • He is a fine communicator. He understands reading between the lines well, gets into issues quickly and he is very sharp. He can add value which was very impressive.

      Competition Law respondentGlobal
  • Band 5Lisa Wright
    Band 5Lisa Wright

    Lisa Wright

    Lisa Wright advises clients on merger clearance and foreign direct investment filings, as well as CMA market reviews and investigations into possible anti-competitive behaviour, including allegations of greenwashing.

    • Lisa Wright is a really good lawyer.

      Competition Law respondentGlobal
    • You feel reassured that you have the best representation with Lisa Wright.

      Competition Law respondentGlobal

Ranked Individuals at Slaughter and May (6)

UK

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