Administrative and Public LawBanking and Financial Markets LitigationCivil Fraud, Asset Tracing and RecoveryCommercial LitigationCompetition LawConstruction and Engineering DisputesContentious Trusts, Estates and Private Wealth DisputesGroup Action LitigationInsolvency LitigationInsurance and Reinsurance LitigationInternational ArbitrationInvestigations and White Collar CrimeProduct LiabilityProfessional Negligence LitigationToxic Tort and ESG
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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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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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 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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Associate
Ariane is an Associate in Signature Litigation’s London office assisting the international arbitration team.
Ariane has over five years of experience as a lawyer, having worked at leading Brazilian law firms specialising in dispute resolution, public law, and administrative law. Her experience includes advising domestic and international clients on regulatory and administrative law matters, international and domestic arbitration, particularly involving public administration, and crisis management arising out of environmental issues and major contractual breaches.
She qualified as a lawyer in Brazil in 2019 and was admitted to the Brazilian Bar Association (OAB) that year. Ariane obtained her Bachelor of Laws (LLB) from Mackenzie Presbyterian University in São Paulo in 2019, followed by a postgraduate specialisation in Administrative Law from Getulio Vargas Foundation (2020-2021). Ariane completed her Master of Laws (LL.M) in Public International Law at Queen Mary University of London in September 2025.
Ioannis Alexopoulos, Duncan Grieve, Pietro Grassi and Ariane Fuller, ‘How major corruption scandals often extend beyond criminal convictions’ (Thomson Reuters Regulatory Intelligence, 26 November 2025).
Ariane Fuller, ‘LIDW 2025: Main Conference—Facing the Uncertainty and Embracing Innovation with Shared Legal Foundation’ (Kluwer Arbitration Blog, 5 June 2025).
Marcos Orofino and Ariane Fuller, ‘LIDW 2025: A Two-Way Road Between Litigation and Arbitration’ (Kluwer Arbitration Blog, 11 June 2025).
Silvia Lamprinopoulou and Ariane Fuller, ‘LIDW 2025: The Strategic Turn From Conflict to Consensus’ (Kluwer Arbitration Blog, 11 June 2025).
Ariane Fuller, ‘LIDW 2025: Navigating Trends and Anticipating Disputes in the ISDS’ (Kluwer Arbitration Blog, 15 June 2025).
LAUER, Bruno. FULLER, Ariane. ‘How Supreme Court rules reciprocal tax immunity for joint-stock companies’. Article published in Estadão (Brazilian newspaper), 2022.
FULLER, Ariane. ‘Life between bars, the coexistence of children and incarcerated parents: the effectiveness of the right of children and adolescents to coexist with their incarcerated parents in Brazil considering the principle of full protection’, in ANDREUCCI, Ana Cláudia Pompeu Torezan; JUNQUEIRA, Michelle Asato. STATUTE OF CHILDREN AND ADOLESCENTS AFTER 30 YEARS; NARRATIVES, FRAMEWORK AND PROJECTIONS. VOL. III. Editora Thoth, 2021.
FULLER, ARIANE. ‘School lunch and the challenges of realising the right to adequate food for children and adolescents’. Dissertation (Degree in law). Universidade Presbiteriana Mackenzie, São Paulo, 2019.
