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London

Founded in 2012, Signature Litigation has grown into one of London’s pre-eminent specialist dispute resolution practices. From the outset, we set out to do things differently: a conflict-free, disputes-only platform designed to give clients the undivided focus and strategic agility that complex, high-stakes matters demand.

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Gibraltar

Established in 2017, Signature Litigation's Gibraltar office was founded to address growing demand for specialist expertise in commercial litigation and private wealth disputes on the Rock.

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Paris

Signature Litigation AARPI houses one of France’s most enviable product liability practices, with the team also handling commercial and corporate litigation, insurance and reinsurance, toxic tort and ESG, civil fraud and asset tracing, international arbitration, administrative and public law.

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Frankfurt

Frankfurt has emerged as one of Europe's foremost financial and commercial centres and, increasingly, as a bridge between European and Asian markets. With that growth comes an increasing demand for sophisticated dispute resolution. Signature Litigation established its Frankfurt office to meet this need, bringing our conflict-free, disputes-only platform to the German market.

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Ritwick Ghosh

Counsel

The quality of their service has always been exceptional. The team excels at developing and coordinating litigation strategies that are not only thorough but also realistic and perfectly aligned with clients’ expectations. 

– The Legal 500 EMEA 2026

The team is excellent, always ready to meet our needs and anticipate risks and expectations.

– The Legal 500 EMEA 2026
Very good advice, to the point and with attention to detail. 
– The Legal 500 EMEA 2026

Ritwick is a Counsel with over twelve years’ experience representing clients in strategically significant business disputes, including cross-border commercial litigation, international arbitration, regulatory investigations and follow-on litigation. Ritwick is based in Signature’s London office.

He regularly acts for asset managers, credit and equity funds and firms in relation to investment disputes and claims following the breakdown of business relationships. He also acts for senior executives and founders.

Ritwick has substantial experience of disputes arising from financial products and banking, investment and M&A transactions. His recent cases include group action claims, civil fraud and professional negligence claims, as well as a range of insolvency litigation. He has also defended a number of clients facing regulatory enforcement action.

Prior to joining Signature Litigation, Ritwick was a Senior Associate at Clifford Chance, where he trained and qualified, and also practised at Quinn Emanuel.

The majority of Ritwick’s work is international in nature and he has substantial experience of proceedings in offshore jurisdictions including the Cayman Islands, British Virgin Islands, Jersey, the Isle of Man, the Dubai International Financial Centre (DIFC) and the Abu Dhabi Global Market (ADGM). Ritwick has a particular focus on disputes involving the MENA region having spent several years practising in Dubai.

Ritwick is recommended in The Legal 500 UK 2025 Guide for his Commercial Litigation practice and is commended by referees as a “very talented lawyer in complex matters and an expert litigator who is great to work with and finding a pathway through complex matters.” Previous Guides have also described him as “cool, calm, and collected” and “able to deal with litigation in a diplomatic but forceful manner.”

Commercial Litigation

  • Representing a technology innovation investment company in bringing and defending claims with the total value of USD 2bn against a multinational investment bank arising from a shareholders’ agreement between them and related to the management of subsidiaries and the valuation of a call option.
  • Representing shareholders in a GBP 700m claim for damages concerning breach of fiduciary duties relating to the development of new technology for electrical vehicles.
  • Representing Bugsby Property LLC, a property developer and sponsor, in the four-week trial of its c.GBP 300m Commercial Court claim against Legal & General for breach of a contract relating to Bugsby’s bid for the purchase of Kensington Olympia.
  • Representing a company and its directors in defending a GBP 60m conspiracy-to-defraud and fiduciary-duty claim brought by a leading property development company arising out a joint venture for the development of a warehouse logistics site. The matter involved complex loss calculations arising out of alleged breaches of confidence and loss of opportunity.
  • Representing a large group of retail investors in a ground-breaking piece of international investment litigation. It concerned breach of contract and misrepresentation claims against major life insurance companies to recover losses in excess of GBP 100m suffered from failed investment bonds. The proceedings in the Isle of Man are ongoing and are the first of their kind in that jurisdiction.
  • Representing an offshore investment fund in an ongoing English High Court dispute against a law firm with a claim value of c.GBP 40m arising from investments made in a listed African insurance company.
  • Representing a principal finance business in relation to disputes arising from various debt and equity investments.
  • Advising a worldwide automotive manufacturer in relation to disclosure issues arising from related-party litigation.
  • Representing investment funds in relation to claims against a bond trustee in respect of USD 100m loan notes following prejudicial amendments to covenants and conditions. The case involved challenging the validity of a consent solicitation process and extraordinary resolution as well as issues of regulatory capital.
  • Representing a claimant in a USD 1bn dispute arising out of dealings between three prominent Ukrainian businessmen relating to interests in a large industrial concern and other assets (ranked as a ‘Top 20’ case in The Lawyer). The various claims and cross claims involved allegations of misrepresentation, deceit and conspiracy.
  • Representing a professional services firm in defence of a negligence claim relating to the failure of a bank.
  • Representing a leading Swiss private bank in defending a USD 1bn claim for mis-selling complex structured products. 

Insolvency & Bankruptcy Litigation

  • Representing a UHNWI in defending proceedings with a claim value of c.GBP 20m brought by an investment bank in relation to a transaction with his trading business and claims under an Islamic finance arrangement. The case involved the management of English insolvency proceedings and foreign proceedings, including in relation to disclosure of assets held in an offshore trust.
  • Advising a sovereign wealth fund in relation to a dispute with a joint venture partner and associated steps to wind-up an offshore entity on the ‘just and equitable’ ground.
  • Representing the joint liquidators of a financial services firm on its compulsory liquidation, associated disputes and court proceedings over a number of years.
  • Representing an investment fund in relation to claims for breach of contractual and fiduciary duties against a company and its directors to recover investment losses. The claims followed the administration of a counterparty trading in the UK technology sector.
  • Representing victims of a large-scale fraud perpetrated in Asia in civil recovery proceedings concerning the status of the assets which had been acquired with the proceeds of fraud and are located and frozen in the UK. The value of the assets is GBP 2.75bn including cryptocurrency.
  • Representing the Official Receiver and Special Managers of a listed multinational group in a claim against its former auditors for professional negligence following insolvency.

Regulatory Enforcement

  • Representing an individual in a reference to the Upper Tribunal in relation to a decision notice issued by the Prudential Regulation Authority which raised issues as to fitness and propriety to perform certain regulated functions. Also advising the client on the pursuit of a complaint to the Financial Regulators Complaints Commissioner.
  • Representing an individual in a reference to the Upper Tribunal challenging a Decision Notice issued by the Financial Conduct Authority prohibiting him from preforming any senior management function. The matter involves alleged misconduct in relation to a discretionary fund management business carried out through a brokerage on behalf of retail customers, with allegations that markdowns on holdings were illegitimately applied and not properly notified to customers.
  • Representing an investment bank in defending an action for disclosure brought by a regulator. The case involved issues of banking secrecy under Swiss law and the management of litigation in parallel to a regulatory investigation.

International Arbitration

  • Representing a sovereign wealth fund in relation to an international commercial arbitration under LCIA rules, associated English Commercial Court proceedings and regulatory investigations.
  • Representing a defendant in relation to challenges in the English Commercial Court to an arbitration award under s.67 and s.68 of the Arbitration Act 1996 following an arbitration arising out of a sale and purchase agreement.
  • Representing an asset management firm in LCIA arbitration proceedings brought by a counterparty for breach of contract.
  • Advising the purchaser and operator of a gas terminal on an arbitration claim for breach of warranties under a sale and purchase agreement.

Article: Jes Staley v FCA: Upper Tribunal decision highlights broader debate on deferred bonuses, executive remuneration – Thomson Reuters Regulatory Intelligence – 14 August 2025

Press quote: Big Four vs Watchdog: Giants rack up over £154m in finesCity AM – 16 April 2025

Press quote: Regulatory Rollback Gathers Pace As Programs Axed – Law360 – 12 March 2025