Throughout its 100-year history, No5 has developed a reputation for breaking new ground and continues to be regarded as a forward-thinking set. No5 maintains its success in traditional sectors of law while offering specialist advice and representation at the cutting edge of newly evolving areas.
Having grown to over 260 barristers, including 40 silks, No5 provides a nationwide service from its offices in Birmingham, London and Bristol. Chambers continues to attract high-quality work in all disciplines, combining excellent service standards with a progressive, modern and flexible approach to clients’ needs.
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4 New Square Chambers is a leading barristers’ chambers specialising in commercial litigation and arbitration. Our members act and advise in disputes in the UK and internationally, and have a well-earned reputation for the strength of their advocacy and client focus.
Winner of Chambers of the Year, Legal Business Awards 2025, and top ranked in both Chambers & Partners and the Legal 500.
We are regularly instructed in some of the largest disputes handled in courts and tribunals worldwide, including many of the landmark legal cases of the 20th and 21st centuries.
We are known not only for our legal credentials but also our commerciality, excellent client service and collegiate working practices. We are committed to furthering equality and diversity and maintaining a friendly working environment which nurtures member and staff wellbeing.
International Arbitration Set of the Year (The Legal 500 UK Awards, shortlisted 2020, winners 2017)
Shipping Set of the Year in Chambers & Partners and/or Legal 500 for 9 consecutive years.
‘The barristers at Quadrant are some of the best you will come across anywhere, and it’s a modern set which goes out of its way to assist solicitors’
(Chambers & Partners, 2022)
‘Quadrant is a class act throughout. A really clever and slick operation.’ (Legal 500 2022)
“It is a first-class, client-led and go-to chambers.” (Chambers & Partners 2022)
Quadrant Chambers is widely recognised as one of the leading commercial sets. Our expert barristers practice across all the major business sectors and in a wide variety of jurisdictions all over the world.
Quadrant Chambers holds a pre-eminent position as a leading international commercial disputes set. We are market leaders with a reputation for excellence in our areas of focus: aviation, banking, commercial disputes, commodities, energy, insurance, international commercial arbitration and shipping.
Chambers currently comprises 69 barristers, including 26 King's Counsel, as well as practice management and support teams. Our members provide a wide range of assistance, from acting as arbitrators and mediators and appearing in court to providing specialist commercial advice.
The Chambers & Partners and Legal 500 directories both recognise our barristers as leaders in their fields.
We strive to provide a service that is aligned with the concerns and priorities of the business world, and to deliver exceptional value and support in our relationships with law firms and clients.
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