Claire Jeffs

Claire Jeffs
One Bunhill Row
+44 20 7090 4031
+44 20 7090 5000


Who's Who Legal Competition: Lawyers

Claire works in the firm’s London and Brussels offices. She has been involved in a large number of high-profile merger cases before the UK and EU competition authorities, as well as coordinating merger approvals worldwide. On the contentious side she has been involved in many cartel and other behavioural cases, including on appeal to the General Court in Luxembourg.

Claire’s recent highlights include advising: Google in relation to the European Commission’s investigations into search and advertising; Ball in respect of its acquisition of Rexam; Vodafone on the merger of its Dutch operations with those of Liberty Global and the merger of Vodafone India with Idea Cellular; INEOS on its acquisition of the Forties Pipeline System and its acquisition of the Oil & Gas Business of DONG Energy; and Shire on its combination with Baxalta.

Claire has been named in Global Competition Review’s “40 under 40”, The Lawyer’s “Hot 100” list and Management Today’s “35 under 35” list of high-flying young business women. She was recently named “Dealmaker of the Year” by Global Competition Review and is listed as a leading lawyer in Who’s Who Legal: Competition.

Claire is recognised as a leading individual by Chambers, The Legal 500: UK, IFLR1000 and Who’s Who Legal.

WWL says: “Star” practitioner Claire Jeffs is “a recognised leader in the field and one of the very top competition lawyers in London”, according to one source, a view echoed across our research.

This biography is an extract from Who's Who Legal: Competition which can be purchased from our Shop.

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