Giles Warrington
Partner
Giles advises on the full ambit of competition law from investigations by the CMA, sector regulators and international authorities to UK, EU and international merger control appeals of regulatory decisions. He also advises on the UK's new National Security & Investment Act.
Giles's experience
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Advising E.ON UK PLC on its judicial review claim against the decision to provide substantial government subsidies to energy companies. We have advised on all aspects of the judicial review proceedings, including the compliance of the government subsidies with UK domestic law and international law obligations under the UK-EU Trade and Co-operation Agreement.
- United Kingdom
- Energy & Natural Resources
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Advised Heidelberg Materials on UK merger control for its acquisition of Mick George Limited. Support included merger notice preparation, CMA engagement (RFIs, Issues Meeting, Issues Paper), and proposed remedies to avoid Phase 2 referral.
- United Kingdom
- Infrastructure
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Advised NEO Energy on the acquisition of an independent oil and gas company, Zennor Petroleum Limited, for a total consideration of up to US$625m.
- $625m
- United Kingdom
- Energy & Natural Resources
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Advised Macquarie Bank Limited in relation to the EU Merger Regulation aspects of the proposed joint venture between Macquarie Bank Limited and Mitsubishi UFJ Finance and Lease Company (MUL) in an equipment finance business in Australia.
- United Kingdom
- Financial Services
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Advised Diamond Transmission Corporation Limited, an off-shore transmission operator, and Chubu Electric Power Incorporated as shareholder, on the potential requirement to notify the European Commision of the Hornsea One project under the EU Merger Control rules (or the CMA under UK merger control rules).
- United Kingdom
- Energy & Natural Resources
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Advised an international insurance provider in relation to a Phase II investigation by the Competition & Markets Authority of the FNZ/GBST merger.
- United Kingdom
- Financial Services
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Provided a car parts distributor with on-site competition law training and prepared relevant training tool materials.
- United Kingdom
- Technology, Science & Industry
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Advised Diamond Transmission Partners Hornsea One Limited on the £1.175bn acquisition and financing of the transmission assets relating to the 1218MW Hornsea One offshore windfarm from Hornsea 1 Limited
- United Kingdom
- Infrastructure
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Advised Palatine Private Equity on the merger of two northern based price comparison brands, Ice-lolly.com and Travel Supermarket.
- United Kingdom
- Financial Services
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Advising a building materials manufacturer on internal compliance programmes
- United Kingdom
- Infrastructure
Credentials
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2026Thomson Reuters Stand Out Lawyer
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2003Joined Pinsent Masons
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1996Qualified - England and Wales
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