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Dominic Long



Long Dominic
Dominic Long



Dominic is a Partner in our global antitrust team who splits his time between our London and Brussels offices. Dominic has extensive experience advising on complex multi-jurisdictional merger clearances before both the European Commission and UK merger control authorities, as well as abuse of dominance and cartel investigations, EU State aid considerations, national security / foreign direct investment reviews and market investigations.

In the UK, Dominic has advised clients on the merger control aspects of a number of high profile transactions including four public interest interventions under the UK’s Enterprise Act 2002. This includes 21st Century Fox on the merger and UK regulatory aspects of its GBP 27.7 billion takeover bid for Sky and the subsequent GBP11.6bn sale of its 39% stake in Sky to Comcast, News Corporation on its proposed acquisition of Sky, Sky on its acquisition of a 17.9% stake in ITV (including before both the Competition Appeal Tribunal (CAT) and the Court of Appeal), and HBOS on its acquisition by Lloyds (including before the CAT). He also advises a number of international clients on highly confidential matters relevant to UK national security considerations and advised one of the UK’s 6 large energy companies on the Competition and Markets Authority’s investigation into GB energy markets, the largest market investigation undertaken in the UK.

At the European level, Dominic has advised on several major cross border transactions including three Phase II clearances before the European Commission. These include advising VEON on the EU merger control approval of its 50/50 Italian mobile telecoms joint venture with CK Hutchison, the first ‘four-to-three’ mobile telecoms consolidation cleared by the current EU Competition Commissioner Margrethe Vestager, on Hutchison 3G Austria's acquisition of Orange Austria and on Oracle's acquisition of Sun Microsystems.

Dominic is described in the Legal 500 as ‘smart and effective’, a ‘rising star’ and praised for his ‘strong intellect’ and ‘ability to translate legal advice with ease’. WWL, 2019 describes him as a ‘fantastic merger control lawyer’, who is ‘extremely dynamic and responsive’. Chambers Competition 2020 says 'Dominic Long is excellent. He has an absolute laser focus on global competition and antitrust matters…'

Other Noteworthy experience includes advising:

  • TVS Europe Distribution Ltd on the CMA’s Phase II merger control investigation of its completed acquisition of 3G Truck & Trailer Parts.
  • VEON on the merger control and regulatory aspects of the Wind Tre joint venture and the subsequent sale of the 50% stake to CK Hutchison.
  • Brinks on its acquisition of certain businesses of G4S.
  • Sky on its acquisition of a 17.9% stake in ITV (including before both the UK Competition Appeal Tribunal and the UK Court of Appeal).
  • DLG on various merger control and antirust behavioural matters.
  • Bord Gáis Éireann on the competition aspects of the privatisation of its energy division.
  • Orange Austria and its controlling shareholder Mid Europa Partners on the EU Phase II merger control clearance of its acquisition by Hutchison 3G Austria.
  • Qatar Petroleum on various confidential matters.
  • A major renewables electricity generator on the disposal of certain wind farm assets.
  • British Gas on various regulatory issues relating to the roll-out of smart meters.

Experience highlights

News & insights

skyline dusk london

Publications: 21 JULY 2021

The National Security and Investment Act (NSIA): a date is set

The UK’s strengthened national security regime will commence on 4 January 2022. From that date there will be a dramatic expansion of the UK Government’s ability to scrutinise investments. That will…

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Beams of lights from fast moving traffic

Publications: 16 JULY 2021

How should antitrust authorities investigate deals that threaten potential competition?

This is a focus for antitrust regulators across the globe, which is playing out most publicly in the context of acquisitions and business practices, in particular in the digital sector, that threaten…

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Publications: 27 MAY 2021

Court confirms long reach of UK merger control jurisdiction

On 21 May 2021, the UK's specialist competition court, the Competition Appeal Tribunal (CAT) gave judgment dismissing Sabre Corporation (Sabre)'s challenge to the Competition and Markets Authority…

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Panoramic view of the Big Ben clock in London

Publications: 30 APRIL 2021

The National Security and Investment Act: a Bill no more

On 29 April 2021, the National Security and Investment Act 2021 (the Act) received royal assent. The Act dramatically expands the UK Government’s powers to scrutinise investments. The regime that the…

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Antitrust and Competition





Allen & Overy (Belgium) LLP
Tervurenlaan 268A avenue de Tervueren

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Allen & Overy LLP
One Bishops Square
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Allen & Overy (Belgium) LLP
Tervurenlaan 268A avenue de Tervueren

View office →



Admitted as solicitor, England and Wales, 2007

Admitted as solicitor, Ireland, 2018

Admitted as “avocat”, Brussels, Belgium


BA, Politics, Philosophy & Economics, Jesus College, Oxford University, 2000 (First Class)

MPhil, Management Studies, St John's College, Cambridge University, 2002 (Distinction)

Diploma, Economics in Competition Law, King's College London, 2009 (Distinction)



TMT Firm of the Year

Legal 500 UK Awards 2019

Ranked 3rd

“Global Elite” firms 2019, Global Competition Review

Competition Team of the Year

British Legal Awards 2018