Douglas Lahnborg is based in London and spends a proportion of his time in the Brussels office, which he founded.

Douglas represents clients before the European Commission and the Competition and Markets Authority in all areas of competition law. He has acted for clients in a broad range of industries, including software, technology, telecommunications, manufacturing, consumer goods, energy, healthcare, defence and national security.

Chambers recognises Douglas as a leading antitrust and competition practitioner. He is also ranked as a leading competition lawyer in Legal 500 and GCR Who’s Who Legal: Competition 2018.
  • Representative behavioural/contentious cases

    • Enron Coal Services in its private damages claim against English Welsh & Scottish Railway Ltd before the Competition Appeal Tribunal and the Court of Appeal. This is the first follow-on action to have reached trial in the UK
    • Sony Europe Limited in its damages action before the High Court against AU Optronics and other LCD manufacturers 
    • Asian technology group in its defence before the EU Commission in the DRAM cartel investigation
    • UK technology group in its defence in a Transatlantic cartel investigation involving the Office of Fair Trading and the U.S. Dep’t of Justice
    • Asian manufacturer in its defence in an animal feed cartel investigation
    • Car parts manufacturer in its defence in global cartel investigations
    • GlaxoSmithKline in the EU Commission’s abuse of dominance investigation into GSK’s enforcement of intellectual property rights relating to paroxetine
    • NVIDIA in the EU Commission’s abuse of dominance investigation into Rambus’ charging of royalty rates
    • Telenor in the EU Commission’s investigation into its long term pay-TV distribution agreements
    • TurboHercules in the EU Commission’s abuse of dominance investigation into IBM’s conduct in mainframe computing

    Representative merger control cases

    • Telenor on the combination of its and TeliaSonera's Mobile Network Operators in Denmark, the first "four to three" mobile telephony transaction under Commissioner Vestager
    • Telenor on the creation of two online classified joint ventures in Asia and South America
    • Telenor on the sale of its mobile telecommunications assets in Russia and Ukraine to VimpelCom; its proposed merger with Telia; and on its acquisitions of various European mobile network operators, including Globul, the Bulgarian operator
    • AVG Technologies, a developer of security software applications, in its acquisition by Avast
    • Qingdao Haier, on its acquisition of Candy
    • Areva Transmission & Distribution in connection with its break-up acquisition by Schneider Electric and Alstom
    • VTech in the investigation into its completed acquisition of LeapFrog
    • Crane Co., a diversified manufacturer of highly engineered industrial products, in its acquisition of MEI Conlux Holdings, provider of unattended payment systems
    • U-Shin on its acquisition of Valeo’s Vehicle Access Mechanism Business
    • Exxaro Resources on the combination of its mineral sands business with Tronox
    • Venture Production on the hostile takeover bid launched by Centrica
    • Companhia Vale do Rio Doce (now Vale) on its public bid for Inco
    • Ericsson on its mobile handset joint venture with Sony
    • BAE Systems on the restructuring of Airbus; the creation of a rocket propellant joint venture; and its acquisition of United Defense
    • Aviva on its public bid for RAC
    • Temasek on its public bid for P&O Ports
    • Glaxo Wellcome on its merger with SmithKline Beecham 
    • H.J. Heinz on its completed acquisition of HP Foods 
    • Cable & Wireless on its acquisition of telecoms operator Energis
    • Intu Properties plc on its joint venture with LaSalle Investment Management, acting on behalf of Greater Manchester Pension Fund and West Yorkshire Pension Fund, to jointly own the intu Chapelfield Shopping Centre in Norwich