Contact Info vCARD

T: +44 (0)20 7071 4274
F: +44 (0)20 7070 9274

London Office
Telephone House
2-4 Temple Avenue
London EC4Y 0HB, United Kingdom


‚ÄčDeirdre Taylor is an English qualified solicitor, serving as of counsel in the firm's worldwide antitrust and competition law practice group. She is based in the firm's London office.

Ms. Taylor's practice encompasses the full range of antitrust issues, including cartels and market investigations, merger control, abuse of dominance, and vertical and horizontal restrictive agreements.

Ms. Taylor has provided antitrust advice to clients across a number of industries, including: telecommunications, aviation, financial services, oil and gas, engineering, retail, pharmaceutical, and manufacturing.  Some of Ms. Taylor's recent matters include defending a multi-national corporation in connection with worldwide antitrust and regulatory investigations in the financial sector, obtaining UK merger clearance for a transaction in the engineering sector, and advising a defendant in the UK's first resale price maintenance investigation in over a decade.

Prior to joining Gibson Dunn, Ms. Taylor spent 5 years at the UK competition authority, most recently as Assistant Director of the Cartels and Criminal Enforcement Group. In this role, she was the project director responsible for a number of civil cartel investigations in the aviation, basic manufacturing and agricultural sectors. Ms. Taylor was responsible for the authority's investigation into collusion between British Airways and Virgin in relation to air passenger fuel surcharges on long-haul flights. Ms. Taylor was also heavily involved in recent policy developments relating to the UK's criminal cartel regime.

Prior to her time with the UK competition authority, Ms. Taylor practiced with WilmerHale from 1999 to 2008 in the Brussels and London offices, with a wide-ranging competition law, telecommunications and aviation practice. From 1998 to 1999, Ms. Taylor served in the European Commission as Stagiaire with the Information Technology and Consumer Electronics Unit of DG Competition. Ms. Taylor is assistant editor of "Faull & Nikpay: The EC Law of Competition," one of the leading practitioner texts in the antitrust and competition law field.

Recent publications:

  • The New UK Competition Regime: Radically Different or More of the Same?
  • Ali Nikpay and Deirdre Taylor, Journal of European Competition Law & Practice 2014 5 (5): 278-286
  • The UK Competition Regime to Change Significantly with the Adoption of the ERRA, Ali Nikpay and Deirdre Taylor, Lexis Nexis Antitrust Report 2013
  • 2014 Mid-Year Criminal Antitrust and Competition Law Update
  • 2014 Merger Enforcement Update
  • 2013 Mid-Year Criminal Antitrust and Competition Law Update

Representative Experience*

Civil cartel investigations, from initial leniency applications and 'dawn raids', through the investigative stages to final decision, including settlement. In particular, responsibility for the investigation into collusion between BA and VAA in relation to air passenger fuel surcharges and settlement with BA.

Criminal cartel investigations, policies, procedures and initial court applications.

Wide-ranging conduct-related practice, covering Articles 101 and 102 TFEU and CA98, in sectors such as fast moving consumer goods, utilities, aviation and telecommunications/media.

Wide-ranging merger practice, including before the European Commission, OFT and national authorities worldwide, first and second phase merger proceedings. High profile merger deals worked on include Alcatel/Lucent and Tetra Laval/Sidel. Ms. Taylor also worked on a number of multinational deals for Time Warner, AOL, Lucent, Liberty Media and Coca-Cola.

In-depth experience of aviation regulation, including an in-depth study for the European Commission on airspace regulation. Ms. Taylor was also heavily involved in advising a major European airline association concerning the implications of the European Court of Justice's "Open Skies" judgments and in preparing a report and paper outlining the association's position on key competition law aspects of the proposed EU-US Transatlantic Open Aviation Area. Other aviation work includes behavioural advice and merger filing advice for a number of international airlines.

Telecommunications/media experience includes advice on electronic communications framework, representation before the European Commission of a new entrant mobile operator in margin squeeze complaint against an incumbent operator, advice on merger filing obligations on various telecommunications infrastructure and content acquisition deals.

*Includes experience gained prior to joining Gibson, Dunn & Crutcher LLP


  • University College - Dublin (NUI Dublin) - 1996 - Master of Laws (LL.M.)
  • University College - Cork (NUI Cork) - 1995 - Bachelor of Civil Law


  • England & Wales - Solicitor