4 New Square Chambers ranked in Chambers & Partners UK Bar Guide 2027
4 New Square Chambers Recognised in the Chambers & Partners UK Bar…
Tom Ogden is an experienced commercial barrister who acts in a wide range of disputes both in litigation and international arbitration. His practice encompasses technology and IT disputes, civil fraud, professional negligence, banking and finance, construction and energy, and company, shareholder and partnership disputes. He is frequently instructed in complex and high-profile matters, both as sole and lead advocate.
Tom has significant international and offshore experience, regularly acting in disputes across a wide range of jurisdictions and appearing in matters with a substantial cross-border element.
Tom brings first-hand financial services experience to his practice, having both worked at JP Morgan Chase before coming to the Bar and undertaken a secondment at the Financial Services Authority. This experience gives him valuable insight into the financial markets, banking and regulatory investigations.
The legal directories describe Tom as “a class act”, “a real star”, “exceptionally good” and a “consistently strong performer”. He is recommended as “a fantastic trial advocate” who is “brilliant on his feet” and “devastating in cross-examination”.
He is consistently praised for being “an absolute joy to work with”, “efficient, practical and responsive” and “phenomenally reliable”. Clients describe him as being “an intellectual powerhouse” and “all over the detail” whilst remaining “very commercial” and “incredibly strategic” with “fantastic judgment”. Importantly, he is also noted for being “phenomenal with clients” and “always providing a calm, reassuring voice that instils confidence.”
Privacy Policy
Click here for a Privacy Policy for Thomas Ogden.
Transparency Statement
Click here for a Transparency Statement for Thomas Ogden.
Tom has a broad commercial litigation and arbitration practice and is ranked in both Chambers & Partners and Legal 500 as “an exceptionally good senior junior” for commercial disputes.
His practice covers the full commercial spectrum including banking and finance and company, shareholder and partnership disputes. For his particular expertise in disputes involving IT and technology, civil fraud and crypto assets see separate sections.
Many of his matters have an international dimension and he has experience of a wide variety of jurisdictions including Bermuda, BVI, Cayman Islands, Gibraltar, Hong Kong, Qatar, Saudi Arabia and the United Arab Emirates.
He regularly handles jurisdiction challenges and applications for injunctions and other interim relief, including freezing and proprietary injunctions, third party disclosure, security for costs, and Norwich Pharmacal and Bankers Trust Orders.
Tom advises and represents a wide range of clients involved in commercial disputes, including private companies, wholesale and retail banks, retailers, private individuals and government bodies.
Featured Commercial Dispute Resolution cases
Tom is recognised as a “tremendous barrister” and an “expert in the field of IT and technology disputes” by the legal directories. He has acted in some of the largest litigation and arbitration disputes in these areas to be heard in the UK.
His experience spans a wide range disputes including large-scale project disputes (government programmes/initiatives) and disputes involving software licensing, software development, fintech, SaaS, cloud computing, data centres, disaster recovery systems, ransomware attacks and cyber security, cryptocurrencies, payment service providers, local internet providers, online games and telecoms infrastructure. He has particular expertise in relation to IT project failures and the termination of IT and telecoms projects.
Tom was shortlisted for Tech, Data and Crypto Junior of the Year at the Legal 500 Bar Awards in both 2025 and 2026, as well as for IT Junior of the Year in 2024 by Chambers & Partners.
He is also the editor of the chapter on Information Technology Professionals in Jackson & Powell on Professional Liability (9th Edition).
Tom’s expertise in the field of disputes involving crypto assets is contained in a separate section.
Featured IT & Technology cases
Tom regularly acts in civil fraud disputes, both in England and in international arbitration/offshore jurisdictions.
He has substantial experience of urgent and interlocutory relief, including freezing and proprietary injunctions, Norwich Pharmacal and Bankers Trust orders, third-party disclosure applications, security for costs and contempt proceedings.
Many of Tom’s cases have an international dimension, including disputes involving offshore investment funds, Bermuda, the BVI, Cayman Islands, Gibraltar, the CIS region and the Middle East.
Featured civil fraud cases
“Tom is excellent and my go-to junior of choice. He is bright, easy to work with, an exceptional lawyer, and a thoroughly nice person.”
Long recommended by Chambers & Partners and Legal 500 as a top professional liability junior, Tom’s wide-ranging practice encompasses claims against accountants, auditors, tax advisors, valuers, lawyers, financial services professionals, construction professionals and insurance brokers. He also has experience of applications to restrain solicitors from continuing to act, to come off the record and wasted costs.
He also has experience of claims involving professionals and professional advisers in international jurisdictions including Bahrain, Bermuda, BVI and Hong Kong.
Alongside his professional liability work, Tom has acted in a range of disciplinary and regulatory matters covering solicitors (SDT), accountants (FRC) and financial services professionals (RDC).
Tom is an editor of Jackson & Powell on Professional Liability. He currently edits the chapters on Insurance Brokers and Information Technology Professionals. He formerly edited the chapter on Patent Attorneys and Trade Mark Attorneys (7th Edition).
Examples of his recent work are detailed in the tabs below.
Tom has significant offshore and international experience across his core practice areas, including commercial litigation, international arbitration, civil fraud and professional liability. He has acted in matters connected with jurisdictions including Bermuda, BVI, Cayman Islands, Gibraltar, Hong Kong and the Middle East.
He has been called to the Bar of Gibraltar and is registered as a practitioner in the DIFC (Dubai International Financial Centre) Courts.
Featured Offshore cases
Tom has significant arbitration experience. He acts in commercial disputes under various institutions including LCIA, ICC, SIAC, BCDR, DIFC-LCIA. His experience includes major construction and infrastructure disputes, IT projects, shareholder disputes and civil fraud claims, including matters connected with Russia and the CIS.
Tom also has experience of challenges under the Arbitration Act 1996, both as sole and junior counsel, including acting in the successful challenge under s.68 in The Secretary of State for the Home Department v Raytheon Systems Ltd.
Featured International Arbitration cases
Tom regularly acts in matters involving cryptoassets where his cross-over expertise in general commercial litigation, banking and financial services, civil fraud, IT software/platform disputes, and professional negligence give him an edge.
He was shortlisted for Tech, Data and Crypto Junior of the Year at the Legal 500 Bar Awards in both 2025 and 2026.
Tom is instructed by employers, contractors and sub-contractors in a wide range of disputes concerning construction projects in the UK and internationally.
Ranked by Legal 500 as a leading junior in the area, he is seen as “a class act. Intellectual but cool, calm and collected. A natural advocate with a charming courtroom manner.”
See also his International Arbitration tab.
Featured Construction & Engineering cases
Legal 500“Phenomenally clever and has fantastic judgment. A superb advocate and devastating in cross examination”
Legal 500“A class act. Intellectual but cool, calm and collected. A natural advocate.”
Chambers & Partners“Tom takes a straightforward and calm approach to advice. He consistently came to the table with a realistic and measured approach to the challenges we faced, which aided in the claim’s success.”
Chambers & Partners“Tom is commercial, he cuts to the chase and he can deploy legal points clearly. He is also readily available and easy to work with.”
Chambers & Partners“I've been really impressed with his written work, his research and his ability to calibrate points. He is proactively picking up things and raising queries.”
Legal 500“Tom really sees the big picture and cuts to the chase. He is always on top of the detail but he is concise in putting his point. He is tremendous and his approach saves a lot of unnecessary words and costs. Very impressive indeed.”
Legal 500“He is a fantastic advocate. He is a great barrister to work with.”
Legal 500“Tom is able to clearly articulate strategic and tactical points and was quick to get across the detail quickly.”
Chambers & Partners“Tom is an excellent advocate, both in the way he provides his submissions and in how calm he is.”
Chambers & Partners“Practical, responsive and someone who puts things simply to clients.”
Chambers & Partners“He is very easy to work with and an exceptionally good senior junior.”
Legal 500“He has a calm and reassuring demeanour, which instils confidence”
Legal 500“He has a keen eye for detail while delivering good strategic advice for the client.”
Legal 500“An astute and insightful junior.”
Education
Tom graduated from Jesus College, Cambridge with a first class degree in History. He subsequently completed his legal studies at City University (CPE, Distinction) and BPP Law School (BVC, Outstanding). He was awarded the Hardwicke, Lord Brougham, Lord Denning and Megarry Scholarships as well as the Buchanan Prize by Lincoln’s Inn in the process.
Memberships
Tom is a member of COMBAR, TECBAR, PNBA, Society of Computers and Law, SCL and FSLA.
News & Judgments
4 New Square Chambers Recognised in the Chambers & Partners UK Bar…
News & Judgments
4 New Square Chambers are delighted to be nominated for 21 awards…
News & Judgments
We are delighted to announce that 28 members of 4 New Square…
News & Judgments
Tom Ogden was called to the Bar of Gibraltar on 4 September…
News & Judgments
We are delighted to announce that 4 New Square Chambers has been…
News & Judgments
We are delighted to announce that members of 4 New Square Chambers…
Past Events
News & Judgments
We are delighted to announce that 4 New Square Chambers has been…
News & Judgments
5 cases involving 10 members of 4 New Square Chambers are featured…
News & Judgments
Tom Ogden acted for EFG Private Bank Ltd in a successful strike…
News & Judgments
Tom Ogden acted for Charles Russell Speechlys LLP in a successful strike…
News & Judgments
Two cases involving members of 4 New Square Chambers are included in…
4 New Square
Lincoln's Inn
London, WC2A 3RJ
BARRISTERS REGULATED BY
THE BAR STANDARDS BOARD
Accessibility | Cookies | Disclaimer | Equality & Diversity | Privacy Policy | © 4 New Square Chambers – All Rights Reserved | Site by Tela.
| Cookie | Duration | Description |
|---|---|---|
| cookielawinfo-checkbox-advertisement | 1 year | Set by the GDPR Cookie Consent plugin, this cookie is used to record the user consent for the cookies in the "Advertisement" category . |
| cookielawinfo-checkbox-analytics | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Analytics". |
| cookielawinfo-checkbox-functional | 11 months | The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". |
| cookielawinfo-checkbox-necessary | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookies is used to store the user consent for the cookies in the category "Necessary". |
| cookielawinfo-checkbox-others | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. |
| cookielawinfo-checkbox-performance | 11 months | This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Performance". |
| CookieLawInfoConsent | 1 year | Records the default button state of the corresponding category & the status of CCPA. It works only in coordination with the primary cookie. |
| viewed_cookie_policy | 11 months | The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. It does not store any personal data. |
| wp_law_pdfbuilder_bespoke | 1 Year | Used for the portfolio builder |
| wp_law_pdfbuilder_list | 1 Year | Used for the portfolio builder |
| Cookie | Duration | Description |
|---|---|---|
| __cf_bm | 30 minutes | Cookie is used by CloudFlare to read and filter requests from bots |
| wfwaf-authcookie* | 1 day | Cookie is used by Wordfence to read to determine if the user is logged in |
| Cookie | Duration | Description |
|---|---|---|
| _ga | 2 years | The _ga cookie, installed by Google Analytics, calculates visitor, session and campaign data and also keeps track of site usage for the site's analytics report. The cookie stores information anonymously and assigns a randomly generated number to recognize unique visitors. |
| _ga_DJZVZPQ3PF | 2 years | This cookie is installed by Google Analytics. |
| _gat_gtag_UA_196640177_1 | 1 minute | Set by Google to distinguish users. |
| _gid | 1 day | Installed by Google Analytics, _gid cookie stores information on how visitors use a website, while also creating an analytics report of the website's performance. Some of the data that are collected include the number of visitors, their source, and the pages they visit anonymously. |
| _hjSessionUser_* | 1 year | Cookie is used by Hotjar to store a unique user ID. |
| cf_clearance | 6 months | The cf_clearance cookie is required for JavaScript detections. JavaScript detections are stored in the cf_clearance cookie. |
Select the expertise that you would like to download or add to the portfolio
| Title | Type | CV |
|---|
Click here to share this shortlist.
(It will expire after 30 days.)
Need more information about the above People and Expertise?
Talk to one of our clerks: +44 (0)20 7822 2000