Jonathan Cohen

Attorney in London, England
Jonathan S. Cohen practices in the area of commercial litigation, including information technology and telecommunications litigation. He advises clients in matters relating to systems failure, international joint ventures, fraud recoveries, warranty disputes, employment disputes and intellectual property disputes including trademarks, passing off actions, copyright, confidential information and license disputes.

Admitted as a solicitor in England and Wales, he is a member of the Law Society of England and Wales, the London Solicitors Litigation Association, the Society for Computers and Law and the Computer Law Association. Mr. Cohen has written and presented extensively in the areas of commercial and information technology law and is competent in both French and German.

Mr. Cohen is a 1991 graduate of The College of Law, Chancery Lane and a graduate of Christ Church, Oxford.

•Duane Morris
- Partner, 2001-present
•Bird & Bird, London
- Senior Solicitor, 1998-2001
•Barlow Lyde & Gilbert, London
- Solicitor, 1995-1998
•Winward Fearon & Co., London
- Litigator, 1994-1995
•Herbert Smith, London
- Training Contract, 1991-1993

Selected Publications
•Choppy Waters: Requesting Discovery and Depositions in England in Support of Proceedings in the United States, Benedict Maritime Bulletin, November 2013
•The Sky's the Limit, New Law Journal, June 2010
•What's in a Name, New Law Journal, May 2011
•Deal or No Deal? Butterworths Journal of International Banking and Finance Law, May 2011
•Use It or Lose It? New Law Journal, March 12, 2010
•Going, Going, Gone? New Law Journal, July 10, 2009
•.. . Until the Fat Lady Sings, New Law Journal, January 30, 2009
•Time & Time... Jonathan Cohen Endorses the Importance of Time in Legal Matters, New Law Journal, November 21, 2008
•The Phantom Menace, New Law Journal, September 26, 2008
•Avoiding Liability for Defective Software, IT Law column of Law Society Gazette, November 27, 2003
•Voyages of Discovery: Obtaining Orders for Discovery in England in Support of Proceedings in the U.S., New Jersey Lawyer, February 2003
•Transposition de la Legislation sur les Technologies de l'information, (on the implementation into English law of the European E-Commerce Directive) Les Petites Affiches, February 2003
•Evaluation des Prejudices Lies aux Dysfonctionnemnets des Logiciels Comptables, (on the assessment of damages following a failed IT system installation) Les Petites Affiches, February 2003
•Ascertaining the Terms of a Software License; BCT Solutions Ltd. v. Arnold Laver & Co Ltd., Law Society Gazette, September 12, 2002
•Assessing Damages in IT Contracts: Horace Holman Group Limited v. Sherwood Group International Limited, The Law Society Gazette, March 7, 2002
•Co-author, Playing the Odds, New Jersey Lawyer, February 2002
•Monthly IT law contributor, Legal Update Section, Law Society Gazette
•IT law contributor, Legal Update Section, Commercial Lawyer
•IT Disputes in the New Litigation Era-IT Law Today, Bird & Bird IT Law Bulletin, October 1999
•South West Water v ICL: Ramifications for the Drafting and Litigating of IT Supply Contracts, Corporate Counsel and Bird & Bird IT Law Bulletin
•Co-author, Chapter on Motor Insurance and Third Party Rights, Personal Injury Litigation, Butterworth, 1996
•Co-author, Financial Times Strategic Review of the UK Non-Life Insurance Industry, 1997
•Co-author, Commercial Environmental Law and Liability, Longmann, 1993

Selected Speaking Engagements
•Author and speaker, Dealing Effectively with E-Commerce Cross-Border Disputes, Euromoney training conference on E-Commerce in the Financial Sector, London, September, 2000
•Speaker, Alternative Dispute Resolution Driven by Technology, On-Line Dispute Resolution Conference, Florence, Italy, February 14, 2002
•Author and speaker, King's College Construction Law Association and Centre for Business Arbitration Conference, Lincoln's Inn, April 2000

+44 20 7786 2142

Peer Rating N/A help_info

Client Rating

Overall Client Rating

in Intellectual Property
5.0 out of 5.0

Communication Ability
Quality of Service
Value for Money

  • Data based on 1 reviews
  • Recommended by 1 Client
  • Last reviewed on 12/21/10
No feedback is available.
The individuals that have reviewed this lawyer have not provided any additional feedback.
Are you a former client?  Submit a review

Experience & Credentials



Admission Details

Admitted in 1993, England and Wales

Law School Attended

The College of Law, Chancery Lane
Class of 1991

University Attended

Christ Church Oxford
Class of 1990

Birth Information

Born in 1969
London, England, January 18, 1969


French and German

Representative Cases

Representative Matters: Represented Metric Capital Partners in connection with their debt and equity investment in Augusta Securities Limited, a UK litigation funding business; Represented the Unity Mine Group, an independent producer of high grade coking coal in South Wales, in a debt and equity restructuring; Obtained summary judgment on behalf o... More

Contact Information


+44 20 7786 2142


+44 20 7900 6597


Send email to Jonathan Cohen

Duane Morris (London, )

About Client Rating
About Peer Rating

Welcome to Martindale-Hubbell® Client Review, a new ratings service that allows you to view and provide feedback on a lawyer or law firm on service and relationship qualities such as Communication Ability, Responsiveness, Quality of Service, and Value for Money.

Determining a Rating

The Client Review Rating is determined through aggregation of validated responses. This compilation of Client Reviews translates to a numerical rating and associate descriptive term on a scale of 1 -5. 1 being lowest as "Rated" and 5 being highest as "Preeminent".

  • 4.5-5.0 Preeminent
  • 3.0-4.4 Distinguished
  • 1-2.9 Rated

Martindale-Hubbell uses a third-party resource to validate that the respondent is a living person, but cannot confirm the lawyer/client relationship, which in many cases is confidential. Clients must affirm that they are a client of the lawyer or firm identified for review at the time of the completed Client Review.

The Reviewers

Those who complete Client Reviews are clients of law firms who hired a lawyer within the last year, whose matter is not pending, and want to share their experience of that lawyer or law firm with other potential clients. Reviewers can be of any type from in-house counsel, corporate executives, small business owners to private individuals, and even sometimes another lawyer in a different jurisdiction.


Client Reviews are anonymous and reviewers' identities are not published; however a summary of basic demographics will be part of the display of responses.

Why do we collect demographics as part of the review?

Those who are researching a lawyer or law firm like to see that there are other clients who might be "like them". This is valuable information contributing to the decision-making process of hiring a lawyer.

Martindale-Hubbell's role

Martindale-Hubbell facilitates the process of Client Review by gathering responses, validating them and aggregating results for display online. The content of the responses are entirely from reviewers, the clients of the firm or lawyer.

It is important to note that Martindale-Hubbell does not undertake to develop Client Reviews for all firms and lawyers. Therefore, the fact that a firm or lawyer has not been reviewed should not be construed unfavorably. Prior results do not guarantee a similar outcome and Martindale-Hubbell accepts no responsibility for the content or accuracy of any review over which Martindale-Hubbell exercises no editorial review or control.