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United Kingdom

Our lawyers in London advise the world's leading businesses, financial institutions, governments and private individuals.

We regularly work on complex cross-border transactions, ground breaking new legal solutions and products, and help Allen & Overy's clients resolve their most difficult disputes.

The majority of our 2000 people in the UK are based at One Bishops Square in London. Allen & Overy's Belfast office, comprising our Legal Services Centre and Support Services Centre, opened in July 2011 and is home to around 400 of our people.

Our offices


View directions to our London office here

News and insights

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Publications: 26 February 2024

Pensions: what's new this week - 26 February 2024

Welcome to your weekly update from the Allen & Overy Pensions team, covering all the latest legal and regulatory developments in the world of workplace pensions. This week we cover the following…

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News: 26 February 2024

Allen & Overy grows global IP practice with hire of life sciences specialist, Gemma Barrett

Allen & Overy (A&O) today announced that Gemma Barrett has joined the firm’s Intellectual Property practice as a specialist in life sciences. Gemma joins the firm from Bristows.

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Publications: 26 February 2024

The uncertain rise of windfall taxes on banks in Europe

With a gradually increasing number of jurisdictions turning to bank windfall taxes, in this article we explore some of the measures that have recently been introduced in certain European jurisdictions…

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Publications: 23 February 2024

Key Regulatory Topics Weekly Update 16 February to 22 February 2024

Of particular note this week in the EU, the Council adopted the legislative package to strengthen market data transparency which includes changes to the EU’s trading rules on market data, payment for…

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A&O London office Covid-19 risk assessment

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Following consultation with staff representatives in our London office, and paying close attention to the government guidance first published on 11 May 2020 ‘Working safely during Covid-19 in offices and contact centres’, we have undertaken a comprehensive risk assessment and taken appropriate actions to minimise identified risks. As government guidance develops and the pandemic evolves, we will continue to review and update this risk assessment as necessary.

Our U.K Seminar programme

Now in its 27th year, this programme brings you the latest expert views and information on the big issues facing businesses today. These seminars give you direct access to our partners' knowledge and expertise and the guidance you need to tackle today's rapidly-evolving markets.