22 July 2026

George provides comprehensive support to both private and public sector clients in judicial review, public procurement, human rights, and regulatory disputes.
Recognised as a “top choice” in commercial judicial review, George frequently represents businesses and organisations in challenging high stakes policy and regulatory decisions made by public authorities. He has also supported numerous public authorities in making defensible decisions and in defending them.
George has helped a number of businesses to successfully navigate disputes concerning advertising content with UK advertising regulators.
George maintains a strong connection to his New Zealand roots through a dedicated practice supporting New Zealand companies operating in the UK. He advises on regulatory, commercial, data protection, procurement, and other key legal matters, serving both established brands and emerging start-ups.
George’s experience spans a wide range of regulated sectors, including advertising and media, transport, education, health policy, sport, social media regulation, defence, financial services, food/beverage, consumer goods, construction products, and energy.
George is a Solicitor of the Senior Courts of England and Wales and a Barrister & Solicitor of the High Court of New Zealand.
Many of George’s clients face existential threats to their business. He helps them to understand and diagnose the problem, to set clear objectives, and to execute a strategy for putting things right. More often than not, matters can be resolved quickly and efficiently through targeted engagement.
George also lends his expertise to several charities and community organisations, helping them navigate complex legal landscapes with confidence.
George is a Beachhead Advisor for New Zealand Trade and Enterprise (NZTE), and has been a member of the Professional Standards Steering Group of the Standards and Regulation Board of RICS (the Royal Institution of Chartered Surveyors).
George has been ranked for four consecutive years in the independent legal guide Chambers and Partners. He is also ranked as a Next Generation Partner in the independent legal guide, the Legal 500. Both rankings are within the practice category of Administrative and Public Law.
George has also been awarded the RICS Contribution Award in recognition of his outstanding contribution as a member of the Transitional Standards Committee.
George McLellan is a serious talent. He is a hard worker, he knows public law inside out, he manages his team effectively to deliver high-quality work products on time, and he has a great relationship with specialist counsel.
Legal 500, 2024
George McLellan is the premier litigator in the market at the moment for commercial claimants.
Legal 500, 2024
In terms of public law challenges, especially if it is something knotty and difficult, George is the one I would go to. He is an extremely intelligent lawyer.
Chambers & Partners, 2025
George is adept at getting the best results for the clients.
Chambers & Partners, 2025
Market leader in commercial judicial review; particularly in acting for well-known and high-profile companies and organisations looking to challenge regulatory decisions.
Legal 500, 2024
I rate George highly for his approach; he is a great black-letter lawyer but he also understands the commercial context that his clients are faced with.
Chambers & Partners, 2024
George is very diligent – he has great attention to detail and comes up with imaginative arguments.
Chambers & Partners, 2024
George McLellan brings tremendous nous and experience to all commercial judicial review and public law matters. He has significant experience of broader judicial review and human rights work. A top choice.
Legal 500, 2024
George McLellan has a growing practice in advising clients on public law issues, such as judicial reviews, public consultations and regulatory advice. His clients include the likes of private corporations, individuals and central government departments.
Chambers & Partners, 2025
George is very astute, extremely competent and skilled.
Chambers & Partners, 2026
George is super commercial and a great creative thinker trying to work out the solutions in unfamiliar scenarios to get the optimum commercial result for his clients.
Chambers & Partners, 2026
George is a tough litigator who is not afraid to fight in his client's corner.
Chambers & Partners, 2026
George understands how his clients tick and how they can use public law to achieve their commercial objectives.
Chambers & Partners, 2026
22 July 2026
26 May 2026
29 April 2026
13 August 2025
Introduction On 11 August 2025, the High Court handed down its decision in Wikimedia Foundation and Another v Secretary of State for Science, Innovation and Technology ([2025] EWHC 2086 (Admin)). This case marks one of the first significant legal challenges to the Online Safety Act 2023 (“OSA 2023”), a statute that has already provoked widespread…
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