• Representing Dasnpin on the CMA’s Phase I investigation into Danspin’s acquisition of Lawton Yarns.
• Advising The Stars Group on its acquisition of Sky Betting and Gaming, cleared at Phase I by the CMA.
• Advising TalkTalk on its intervention in the CMA’s Phase II investigation of BT’s acquisition of EE.
• Advising Arriva on its successful bid for the Northern Franchise, cleared at Phase II subject to remedies.
• Advising a third party in relation to the CMA’s Bako NW/ Bako Northern and Scotland merger inquiry.
• Advising a third party in relation to Muller’s anticipated acquisition of Dairy Crest.
• Advising BEIS on public interest aspects of Pfizer’s proposed acquisition of AstraZeneca (with Tom de la Mare KC).
• Advising the Jersey Competition Regulatory Authority on the acquisition by La College Terminal of certain assets of Esso Petroleum Company.
• Advising Coopervision on the CMA’s investigation into its acquisition of Sauflon (with Daniel Beard KC).
• Advising Optimax on the CMA’s investigation of its acquisition of Ultralase, a competing provider of laser eye surgery, cleared at Phase II on “exiting firm” grounds.
• Advising the CMA on confidential merger issues in the healthcare field.
• Advising Virgin Money on EU merger control and State aid aspects of its acquisition of Northern Rock.
• Advising Handicare on its acquisition of Minivator, both active in the stairlift industry, securing clearance from the CMA.
• Advising DS Smith on its acquisition of cardboard packaging company Otor, cleared by the CMA.
• Advising Sun Microsystems on its merger with Oracle, a second phase investigation by the European Commission, and raising a number of novel issues regarding open source software. The acquisition was cleared unconditionally following informal commitments by Oracle.
• Advising Nationwide Building Society on its acquisitions of Cheshire, Derbyshire and Dunfermline Building Societies, including dealing with Banking Act issues, State aid, “failing firm” and local and regional market analysis. All three were cleared by the CMA (Dunfermline within a record 14 working days).
• Advising Somerfield on its merger with The Co-operative Group, involving an extensive review procedure by the CMA focussing on local markets.
• Advising Cable & Wireless on its acquisition of Thus, dealing with a number of telecoms markets, cleared by the CMA.
• Advising DTCC on its proposed merger with LCH.Clearnet in the clearing and settlement sector.
• Advising Macquarie on its sale of South East Water and various other projects in the water sector including the purchase of Wessex Water and the previous sale of South East Water.
• Advising the London Stock Exchange in the CMA’s second phase inquiries into potential acquisitions by Deutsche Börse and Euronext.

• Representing Snap Inc in Meta’s challenge to the CMA’s merger decision (Meta v CMA).
• Representing ComparetheMarket in its ongoing challenge to the CMA’s infringement decision regarding wide most favoured nation clauses (with Daniel Beard KC).
• Representing Mr Le Patourel in his £600m opt-out class action in relation to overcharging of voice only customers by BT (with Ronit Kreisberger KC).
• Representing a director in disqualification proceedings arising out of the CMA’s nortriptyline investigation, successfully securing leave to act.
• Representing JD Sports in its successful challenge to the CMA’s decision to impose a record penalty for breach of an Initial Enforcement Order.
• Representing Sabre in its challenge to the CMA’s decision prohibiting its proposed acquisition of Farelogix (with Tim Ward KC).
• Advising Northern Powergrid on its challenge to Ofgem’s RIIO – ED1 price control determination (with Daniel Beard KC and Alistair Lindsay).
• Representing Everything Everywhere Limited, Hutchison 3G UK Limited, TalkTalk Telecom Group plc, Verizon UK Limited and Vodafone Limited on their application to intervene in Colt Technology Services v Ofcom.
• Advising Spire on its challenge to the CMA’s approach to disclosure in its private healthcare market investigation (BMI Healthcare v Competition Commission) (with Daniel Beard KC).
• Advising the CC on its merger investigation into Ryanair’s minority stake in Aer Lingus and related challenges in the CAT and Court of Appeal (with Daniel Beard KC).
• Advising Sky and TalkTalk on their and BT’s challenges to Ofcom’s LLU/WLR 2012 price determination (with Meredith Pickford KC).
• Advising the Government of Iceland on EFTA Surveillance Authority v Iceland (the “Icesave case”) (with Tim Ward KC).

• Advising a price comparison website on the CMA’s Chapter I/Article 101 investigation into the use of most favoured nation clauses in relation to home insurance products.
• Advising a party on the CMA’s market investigation into private motor insurance.
• Advising the FCA on its Competition Act investigation into potential information sharing between asset management firms.
• Advising uSwitch on Ofgem’s Chapter I CA98 / Article 101 EC investigation into “a supporting service for the energy industry”.
• Advising House of Fraser on the CMA’s investigation into the retail pricing of sports bras under Chapter I CA98 / Article 101 EC.
• Advising the CMA on its Chapter II investigation into the distribution of road fuels in the Western Isles of Scotland (with Kassie Smith KC).
• Advising the CMA on its Chapter II / Article 102 EC investigation in relation to the provision of bunker fuel card services (with Daniel Beard KC).
• Advising Monitor on competition enforcement under its new licensing regime (with Daniel Beard KC).
• Advising a major motor insurer on issues under Chapter I Competition Act.
• Advising Barclays on the CMA’s investigation into payment protection insurance.
• Advising Comet on the CMA’s monopoly inquiry into extended warranties on domestic electrical goods.
• Advising PSI on its complaint to the European Commission regarding abuse of dominance by IBM in mainframe servers and subsequent settlement.
• Advising Capital Meters Limited on Ofgem’s investigation into National Grid’s meter service agreements.
• Advising a client affected by a margin squeeze on potential courses of action including complaint to the CMA and or private action in damages.
• Advising Sony Pictures, Disney and On Demand Group on potential coordination issues arising out of a joint venture to provide on demand television services in the UK.
• Advising x-clear on its application for status as a Recognised Overseas Clearing House under the Financial Services and Markets Act 2000, and other exchange clients on issues arising under the FSMA jurisdiction.

Cases

• Representation of a main party in a still confidential investigation in the transport sector.
• Advising a major provider on the CMA’s consumer law investigation into hotel online booking sites.
• Advising a party in the CMA’s consumer protection investigation into online endorsements, settled by undertakings.

Competition Law: “For anything competition-related, Alison is top of my list. She completely understands the solicitor’s side of things, which gives her an edge. She’s never called a situation incorrectly.” “Alison is outstanding – she is the go-to on merger control appeals.” “Alison has a unique combination of competition law knowledge and commercial acumen. She always goes the extra mile and tells you what it means for the client with practical advice.” – Chambers UK and Chambers Global, 2025

Leading junior in Competition: ‘‘Alison is an absolute go-to for anything competition-related. She is incredibly bright, and her strategic nous is second to none.’’ – Legal 500, 2025

Recommended in Competition, Who’s Who Legal UK Bar 2025

Competition Law: “She provided consistently insightful advice in a concise manner.” “She is a master of detail in terms of the law and economics, and she is easy to get along with.” “She is an excellent advocate and very good with clients.” – Chambers UK, 2024

Leading junior in Competition: ‘‘Alison is like Superman but immune to Kryptonite – she has no known weaknesses. She is an incredibly bright and innovative thinker, who is utterly committed to helping you and the client get the result you need, which she invariably delivers in spades.’’ – Legal 500, 2024

Competition Law: “She’s incredibly clever, very effective, and very easy to deal with as she used to do what we do.” – Chambers UK and Chambers Global, 2023

Leading junior in Competition: ‘‘A hugely intelligent barrister with a fine strategic mind, Alison is completely unflappable and a great asset on any matter.’’ – Legal 500, 2023

Recommended in Competition, Who’s Who Legal UK Bar 2022

Competition Law: “She has a mind like a steel trap. She is so clever, strategic and calm, and she can see several moves ahead and is good at working out how to get past a difficult matter.” – Chambers UK and Chambers Global, 2022

Leading junior in Competition – Legal 500, 2022

Competition Law: “She is a very clever competition lawyer who knows the job of a solicitor inside out, which enhances her practice.” “She is a very flexible, helpful and sensible person to work with.” – Chambers UK and Chambers Global, 2021

Leading junior in Competition: ‘‘Alison is a standout barrister particularly on complex merger control matters. She is great both with her written advice and as an advocate before the CMA and Competition Appeal Tribunal. A go-to barrister.’’ – Legal 500, 2021

Future Leader in Competition, Who’s Who Legal UK Bar 2021

Competition Law: “Alison spent quite a few years in private practice, so has a real understanding of the timelines and availability that solicitors are required to give their clients.” “She gives practical and commercial advice,” and “has great tactical understanding in terms of knowing what the client wants to achieve and seeing how that can be delivered.” – Chambers UK and Chambers Global, 2020

Leading junior in Competition: ‘‘A class act – very shrewd.’’ – Legal 500, 2020

Competition Law: “Takes real time to understand the client’s objectives, and is clear in her delivery.” – Chambers UK and Chambers Global, 2019

Competition – “Top-notch.” – WHO’S WHO LEGAL (WWL), 2018

Leading junior in Competition: ‘‘Her thinking and analysis is clear and thorough and she has an easy manner with others.’’ – Legal 500, 2018

Competition Law: “She is a leading authority on merger control proceedings and is calm, authoritative, experienced and highly respected.” – Chambers UK, 2018

Leading junior in Competition: ‘‘Knowledgeable and experienced.’’ – Legal 500, 2017

Competition – Future Leaders 2017: Barristers Analysis:  “Alison Berridge is commended for her “extensive merger experience”, with one interviewee stating, “She is really, really good; an absolutely excellent practitioner.”” – WHO’S WHO LEGAL (WWL), 2017

Competition Law: “She is very bright and very calm, and has particular expertise in merger control.” – Chambers UK, 2017

Leading Junior in EU and Competition: “Her knowledge of merger control regulation is tremendous.’’  – Legal 500, 2016

Competition: “A rapidly rising junior”, who has over a decade’s worth of experience as a solicitor before her call in 2011. She is regularly instructed in merger approvals and antitrust investigations by clients who find her “practical, discerning and responsive”. – WHO’S WHO LEGAL (WWL) UK BAR 2016

Competition Law: “Very able and went to great efforts to assist our client.” – Chambers UK & Chambers Global, 2016

“Very bright indeed – focused and shrewd.” Leading Junior in EU and Competition Law. Legal 500, 2015

Competition Law: “She is very bright, gets across all the material in a case and really mucks in with the client team, which makes a huge difference.” – Chambers UK, 2015

‘Analytical and commercial in her approach.’ Alison is ranked as a leading Junior under EU & Competition Law – Legal 500, 2014

“The ‘commercially aware‘ Alison Berridge is praised for her merger control expertise.” She is recommended under EU & Competition Law – Legal 500, 2013