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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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Administrative and Public Law

Excellent team, highly specialised with strong individuals.

The Legal 500 EMEA 2025, Dispute resolution: Commercial litigation

Signature Litigation acts in administrative and public law disputes across our offices in London and Paris. Our team has deep experience representing public and private clients operating across a range of industries, bringing or defending challenges from public bodies.

In Paris, our team has significant experience in public law and administrative litigation representing clients before judicial and administrative courts and acting for both public and private clients. Our expertise includes public procurement law, urban planning law, civil service law, environmental law and public property law. We also act as strategic counsel advising our clients on navigating through complex issues arising out of public contracts, regulations and public authorisations applications.

We also have significant experience in handling challenges against self-regulating organisations in the sports sector such as FIFA, FIA and the RFU. Whilst these organisations are private bodies, they serve public interests by delegation from the French Ministry of Sport.

Our experience spans a wide range of industries including biotechnology & healthcare, construction & infrastructure, defence, energy, food & hospitality, interactive entertainment, IT, pharmaceuticals, postal service, retail, technology infrastructure, transport.

We have extensive experience in handling a wide range of contentious issues in public procurement contracts throughout their entire lifecycle. We support our clients from the initial tender stage — advising on bid preparation, submission, and negotiations with public purchasers — through the performance and potential modification of contracts and including challenging or defending the outcome of procurement procedures. We regularly represent clients in urgent proceedings such as référé précontractuel and référé contractuel, which are critical for contesting the validity of tender processes or contract awards.

Our comprehensive understanding of public procurement law and significant litigation experience in this area allows us to anticipate and address legal risks from the outset to prevent litigation or, if a matter is contentious, launch an effective challenge or defence.

In London, we represent our clients in complex cases in the financial services sector challenging the lawfulness of decisions made by such regulatory bodies as Financial Conduct Authority (“FCA”), Prudential Regulation Authority (“PRA”) and HMRC.  We also have experience representing clients in challenges against public bodies regarding the outcomes of public procurement processes, as well as against decisions made by specialist public and private bodies with a public interest function, such as the Oil Companies International Marine Forum (OCIMF).

We represent prominent individuals and major companies in challenging decisions by public authorities, regulatory bodies, or private entities performing public functions, where there has been a failure to comply with legal obligations. Judicial review can be a powerful commercial tool for companies affected by such failures, raising the profile of important issues and potentially leading to follow-on damages claims, which our experienced commercial litigation team is well placed to handle.

KEY INDIVIDUALS

Thomas Rouhette is an excellent lawyer, creative and a fine strategist, particularly formidable in court, who always takes into account the commercial issues of his clients.

– The Legal 500 EMEA 2025, Dispute resolution: Commercial litigation

Michaël Perche… is skilled in regulatory and public contracts disputes.

– The Legal 500 EMEA 2025, Administrative and public law

Abdul Jiwaji is an outstanding litigator, both in terms of legal skill and strategic expertise.

– The Legal 500 UK 2025, Commercial litigation: premium

An impressive operator who can attack a difficult situation with great energy, judgment and effectiveness.

– The Legal 500 UK 2024, Banking Litigation: investment and retail

Case Highlights

Representing a ship inspector in a 'test case' against the Oil Companies International Marine Forum (OCIMF), a private body with a public service function responsible for accreditation of ship inspectors who conduct safety inspections on oil tankers and at oil terminals. The case concerned the unlawful removal of our client's accreditation. We successfully challenged the fairness of accreditation-body disciplinary processes and the client was awarded damages. This case triggered similar claims.

Representing a facilities management company in a review of the rationality of a decision made by Hertfordshire County Council in respect of the public procurement process relating to a GBP 25m multi-site property management and security services contract. The case also included issues of the unlawful exercise of delegated power by an officer. The case involved a damages claim for GBP 10m.

Advising a French state-owned company performing postal services on the setting up and implementation of tender procedures for a EUR 200m collective catering contract for its employees and a EUR 20m contract for the supply of banknote processing machines.

Advising a French subsidiary of an international discount retailer chain in respect of a large number of building permit applications for the construction and renovation of their stores in France.

Representing a French subsidiary of a US industrial group in litigation brought by several former protected employees against dismissal authorisations granted by the DRIEETS, a French public body responsible for labour law issues.

Representing an Asian telecommunications company in obtaining various administrative authorizations (such as a building permit, an environmental permit, etc) required for setting up a data center campus in France, a project valued at EUR 1bn.

Representing a French company in the digital marketing sector in a c.EUR 3m dispute against the French State as a consequence of the illegality of the latter's decision to validate a Plan de sauvegarde de l’emploi (ie an employment protection plan) which resulted in major financial losses for the company.

Representing a war material manufacturer in a référé précontractuel (ie a pre-contractual appeal in the administrative court on the grounds of inequality) seeking the annulment of the award procedure for a defense procurement contract valued at EUR multi-million for the supply of precision rifle scopes.

Representing a metropolitan authority in a EUR 150m dispute with a European civil engineering company relating to arising from a public-private partnership contract for the design, financing, construction, maintenance and operation of one of the largest sports stadiums in France. The dispute involved lengthy expert appraisals and pre-insolvency proceedings.

Representing a consortium appointed as the preferred bidder to sign a EUR 500m public procurement contract for IT services in the context of a référé précontractuel (ie a pre-contractual appeal in the administrative court on the grounds of inequality) brought by a competitor.

Representing a European biotech company in a EUR 15m dispute with a public hospital following a malfunction of a medical robot resulting in brain damage to the patient.

Advising a global fast-food chain on the application of French Anti-waste law for a circular economy (AGEC) of 2020 and on the allocation of responsibilities for compliance in franchise arrangements.

Advising the owner of a castle of significant public and historic importance in France in relation to a safety order issued by the local municipality arising out of concerns that a part of the building may collapse. In addition to requiring significant repair works, the order required evacuation of local residents living in proximity to the building and compensation of the evacuation costs by the building's owner.