JUNIOR PROFILE

Jonathan Lewis

UK Bar 2026

Monckton Chambers

Ranked in 2 practice areas

Public Procurement

London (Bar)

4 years ranked

Consumer Law

London (Bar)

1 year ranked

About

Provided by Monckton Chambers

Practice Areas

Jonathan’s practice is diverse, with a particular focus upon public procurement, public law including human rights, judicial review, commercial litigation, product liability and consumer law. Acts for claimants and defendants in all areas.

Career

Member of the Attorney General’s A Panel. Public procurement work includes defence and security cases and JR claims (e.g. defending two Good Law Project challenges to awards of Covid PPE contracts). Judicial review practice concerns decisions made by a variety of bodies, from local authorities and the SSHD to the HSE and FSA. Recently advised department as to the compliance of proposed legislation with the Human Rights Act 1998.

Notable cases include Supreme Court decision in claim brought against FSA (2018 and [2021] UKSC 54). CA decision on late service of JR claim form ([2022] 1 WLR 2339). Statutory appeals in CA ([2021] EWCA Civ 1830). High profile consumer cases for the CMA (ranging from technology to travel cases). Successful intervention in writing in 2022 in CA in a consumer case under Consumer Rights Act 2015.

Qualified as a solicitor at a magic circle firm in 2005. Judicial assistant to the CA in 2006. Specialist public law lawyer overseeing public law appeals in CA in 2006-2007. Called 2007. C Panel 2013. B Panel 2018. A Panel 2022.

Professional Memberships

ALBA; Procurement Lawyers’ Association; COMBAR.

Publications

Published in leading academic journals (LQR; MLR; PL etc). Writes regularly for Lexis PSL on public procurement and judicial review. Contributes to PLC on consumer credit.

Chambers Review

Provided by Chambers

UK Bar

Public Procurement - London (Bar)

Band 2

Individual Editorial

Jonathan Lewis is a rising junior in the field. He has a wide procurement practice, representing both claimants and contracting bodies in substantial procurement challenges. Lewis is instructed by businesses, local authorities, NHS bodies and the Ministry of Defence.

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Consumer Law - London (Bar)

Band 3

Individual Editorial

Jonathan Lewis is an extremely capable junior with impressive experience of handling the full range of commercial and consumer litigation. He has further expertise in advising on consumer credit issues under the Consumer Rights Act 2015 and regularly acts for enforcing authorities in unfair trading.

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Strengths

Provided by Chambers

Jonathan Lewis's advice is commercial in nature and he understands the client's business and speaks their language.
Public ProcurementUK Bar
Jonathan is a great procurement barrister. He is knowledgeable and supportive of clients, and has good strategic instincts.
Public ProcurementUK Bar
Jonathan Lewis has very strong analytical skills and is very hard-working.
Public ProcurementUK Bar
Jonathan is very responsive and delivers timely, accessible advice that clients can digest with ease.
Public ProcurementUK Bar
Jon is extremely good with clients, and provides clear, concise and commercially sensible advice in the short periods of time available in procurement litigation.
Public ProcurementUK Bar
Jonathan demonstrates a rapid understanding of the commercial considerations and the challenges presented by consumer law changes. He gives timely and accurate advice to ensure the best outcomes.
Consumer LawUK Bar