Our team
Trust. Quality. Consistency. Excellence.
Tets was appointed Managing Director of LionFish upon its launch in May 2020. He started his career as an investment banker, structuring and marketing derivative and securitisation transactions at ABN AMRO, Goldman Sachs and Morgan Stanley as well as being a founding partner of fixed income agency broker Amias Berman & Co LLP.
He has been involved in litigation funding since 2011, alongside various other business activities as both adviser and investor, including setting up captive litigation funder Sparkle Capital Ltd , for Acasta in 2014. A long established and leading figure in the litigation finance industry, he was most recently responsible for running the ATE business at Acasta Europe Ltd, as well as managing Sparkle Capital Ltd which he built into a prominent market player.
Tets brings dynamism, entrepreneurism and innovation to the litigation funding markets through his unique combination of a deep understanding of litigation funding, derivatives structuring and financial engineering, together with a broad commercial experience across a number of roles and sectors. In particular, he has a reputation for driving operational efficiency, transparency, delivery and marrying this with innovative and practical deal-making traits, which form the backbone of LionFish’s approach to litigation funding.
Tanya joined LionFish in February 2022 and was appointed to the Board in July 2023.
Having started her career at TheJudge Global, the then leading London-based brokerage for dispute risk solutions, she quickly became a highly regarded industry peer. Her technical and legal expertise of both the ATE insurance and litigation funding markets were consistently mirrored in her commercialism and ability to get deals closed. In addition to negotiating and structuring insurance and financing agreements, Tanya also spent time educating lawyers and counsel on this niche industry.
In 2020, she was hired by Emissary Partners, the global disputes advisory boutique where her ambition, extensive relationships and economic understanding of disputes contributed to the firm’s growth and work with investors and litigation funders on optimising the outcomes of complex portfolios and disputes.
Tanya has a dynamic, thoughtful approach that consistently delivers against the needs of any situation. Her quick, agile mind and commerciality are reflected in her straightforward and transparent approach as well as ability to operate robustly and efficiently. With both her market knowledge and start-up experience, Tanya brings a rare mix of qualities that align with LionFish’s approach and strategy to litigation funding – all which led to her rapidly becoming an integral part of the firm’s management team.
Neil returned to LionFish as Chief Operating Officer in September 2025, bringing over 30 years of experience in the Legal, Finance, and Litigation Funding sectors. As a founding member of LionFish, he was instrumental in its launch and early success.
Neil began his career at Blue Star Line,part of the Vestey Group, before transitioning to the London Stock Exchange as Head Cashier. He joined what became RBG Holdings plc in 2001, leading Finance and Administration and playing a pivotal role in its IPO in 2018. As Group Corporate Executive to the CEO, he facilitated the acquisition and integration of Convex Capital into RBG. He was later appointed to the Board as Chief Operating Officer of RBG Legal Services.
Known for strategic vision, operational rigour and delivering measurable results, Neil has earned a reputation for turning complex initiatives into high-impact outcomes.
Graeme joined LionFish as Finance Director in July 2023. He is a Chartered Accountant and has a portfolio of part-time CFO, non-executive and board advisory roles.
Graeme qualified as a Chartered Accountant in 1995 and quickly took on senior finance roles for companies including FTSE 100 company 3i Group Plc, and BrokerTec, the e-brokerage for fixed income securities acquired by ICAP Plc for $240m in 2002. From 2002 to 2010, Graeme led the international finance team of Tradeweb, a Nasdaq-listed financial services company. At Tradeweb, Graeme oversaw growth in revenues from $10m to $90m, became the interim group CFO and led the launch of an electronic trading platform for equity options.
Between 2010 and 2021, Graeme was the full-time CFO for 4 private equity backed companies which included Firstassist Legal Expenses Insurance Limited, the leading litigation insurance specialist backed by the private equity firm Equistone. During his time at FirstAssist, Graeme oversaw growth in EBITDA from £5m to £9m, led the firm’s acquisition by Burford Capital Plc in 2012, and was part of the team that developed Burford’s UK litigation funding offering.
Gavin Wells was appointed Chair of LionFish in July 2023. After serving for eight years as a British Army officer in the Royal Artillery, he spent fifteen years at Citi working in a variety of trading and global leadership roles in Foreign Exchange.
He was subsequently hired by the London Clearing House, now a part of the London Stock Exchange Group, as CEO of the services business, where he worked with fourteen of the largest shareholder banks, to deliver the first clearing service for Foreign Exchange and rebuild a similar service in Paris for Credit Default Swaps.
From 2016 to date, Gavin worked at a leading fintech, Digital Asset, bringing distributed ledger technology to financial services before moving to the FX arm of Deutsche Börse Group, 360T, to work on their product strategy. Over that period, recognising his passion for both governance and leadership, he completed the Financial Times NED diploma and then went on to complete an MA in Coaching and Mentoring.
Gavin has a deep interest in the development of individuals and teams, in particular, the role this plays in effective business outcomes and governance. He is a founding member of the Women’s Equality Party and actively supports the charities Action Breaks Silence and The Recovery Course.
Andrew joined LionFish in September 2025 as Strategic Adviser, bringing a wealth of hands-on, corporate and strategic experience of the global litigation funding market.
Qualifying as a Chartered Accountant in 1993, he has been a member of the Institute of Chartered Accountants of Australia and New Zealand for over 32 years and was a registered company liquidator and Official Liquidator of the State and Federal Courts in Australia.
Andrew spent 27 years at Ferrier Hodgson (now KPMG), the last 16 as a partner, where he practiced insolvency, turn around and restructuring in Australia, North America and Asia. He advised across a diverse range of industries including mining, finance, property, agriculture and aquaculture, manufacturing, telecommunications and retail, including the then largest restructuring assignment in Asia, the US$16bn restructuring of Asia Pulp & Paper and the US$3bn restructuring of Telecom Argentia.
From 2015 to 2023, Andrew was the CEO and Managing Director of Omni Bridgeway Limited (ASX:OBL). He led a restructuring of the business, diversifying its balance sheet investment business into funds management and leading a global expansion of operations to establish Omni Bridgeway as one of the largest litigation funding businesses in the world.Andrew was regularly ranked by Chambers and Lawdragon as a global leader in legal finance.
In 2023, Andrew established a consulting business to advise litigation fund managers and capital providers to litigation fund managers in relation to strategy, investment management and structuring.
Anna joined LionFish as Senior Adviser in September 2023. She has thirty years of experience in global capital markets, is an active NED of several companies and acts as independent litigation and risk adviser to select private equity firms.
Having started her career as a corporate lawyer, she then joined Investec Merchant Bank in 1992, specialising in risk management and working extensively in the areas of corporate and structured finance, mergers and acquisitions, specialised finance, as well as in other areas of banking and financial services. Given her expertise in structuring and implementing corporate and structured finance transactions in the mining, banking and bio science sectors, Anna was a pioneer in Canada’s first private healthcare hospital which was successfully sold to Centric Health a public company in 2010.
Anna works with select private equity firms in an advisory capacity for general risks and litigation, and has had considerable experience in litigation funding. Since 2000, she has been and remains on the board of many publicly-traded and private companies across the USA and Canada and has many years of experience chairing Audit, Governance and Compensation committees for public companies as an independent Director. Between 2019 and 2021, Anna received numerous awards including for Global Excellence, Business Woman of the Year and Top 100 People in Finance.
Adrian was appointed Senior Adviser of LionFish in August 2023. He has over 34 years of experience as a solicitor working in private practice in the City of London. He was a Partner for 30 of these years and has been advising LionFish since 2021.
Having begun his career as a corporate lawyer, specialising in private company M&A and private equity, he later specialised in cross-border insolvency and financial restructuring and financial services litigation. He has worked on numerous cutting edge engagements in the UK, US, Europe and Emerging Markets, and has led some of the UK’s strongest bankruptcy and corporate restructuring teams. His clients included major UK and US financial institutions and international accountancy firms.
From 2001, Adrian was appointed Managing Partner of the London offices of two eminent US law firms, guiding them through periods of significant structural and cultural change. He has been awarded several bankruptcy and insolvency lawyer awards over the years.
John joined LionFish as Senior Adviser in August 2023. He has over 32 years of experience as a solicitor working in private practice and currently acts as mediator and litigation consultant on a range of commercial disputes.
John qualified as a lawyer in 1981 at leading global law firm Ashurst and became Partner only a few years later. He has worked on, and had conduct of, an eclectic portfolio of cases ranging from breach of warranty claims to disputes involving banking and finance, negligence, trusts, oil and gas, aviation and more. Following his many years as a senior Litigation Partner at Ashurst – where he ended up practising for 26 years – John took a sabbatical to focus on wildlife conservation in Southern Africa. Some 18 months later, he returned to practice as Partner with Howrey, and then with Fulbright & Jaworski (now Norton Rose Fulbright) before becoming a CEDR-accredited Mediator and Litigation Consultant.
Internationally recognised, and formerly on the Board of the International Association of Defense Counsel, he has an extensive track record representing both claimants and defendants in complex business litigation impacting multiple industry sectors. He has frequently been at the cutting edge of developments in substantive law and procedure and has been repeatedly recognised in ‘Who’s Who Legal’ Directories of Business Lawyers and by Global Counsel 3000. He has also been described as ‘highly experienced and tough’ by Legal 500 and has time and again been commended for his ‘solution-driven approach’ (Chambers).
Joanne joined LionFish as a Senior Adviser in May 2025.
She qualified as a lawyer in 2004 at Herbert Smith (now Herbert Smith Freehills Kramer), where she practised in their disputes division for more than 20 years and worked on a number of high-profile cases. Joanne has also spent time working in the in-house legal team at one of the big four accountancy firms. She currently practises as a consultant and has recently joined Temple Bright as a partner.
Joanne has experience in a wide range of complex commercial disputes for clients ranging from high net-worth individuals to FTSE-listed companies, including contractual disputes, actions in negligence, business and human rights, shareholder disputes, partnership disputes, claims involving breach of directors’ duties, fraud, injunctions and regulatory and public law matters.
She is also experienced in collective actions, including commercial disputes arising out of mining and energy projects, for which she has been noted in the mining and minerals entry of the Legal 500 UK. Joanne contributed to the most recent edition of Class Actions in England and Wales (2nd edn, Sweet and Maxwell, 2022).
Matthew joined LionFish as a Senior Adviser in March 2025.
Matthew is a highly experienced disputes partner specialising in commercial litigation and arbitration. After a period as a criminal barrister, Matthew qualified as a solicitor at Slaughter and May where he spent six years before moving to US international law firm Dorsey & Whitney, litigating for nearly twenty years with an emphasis on cross-border disputes, shareholder disputes, disputes arising from M&A transactions and high value contractual claims across multiples industries. Henow practices at Punter Southall Law. Matthew also lectures at the University of West London on Commercial Litigation and Arbitration.
Throughout his career, he has represented a range of listed and private companies andindividuals on both the claimant and defendant sides and brings to LionFish aninvaluable wealth of experience and litigation strategic insight.
Paul joined LionFish as Senior Adviser in September 2024.
He is an accomplished intellectual property litigator, specialising in particular on highly technical, complex cross-border patent litigation, with extensive experience also on technical trade secrets disputes, general commercial contract disputes and matters concerning other intellectual propertyrights.
Having qualified at Hogan Lovells, Paul built his career atthe US international law firm Arnold & Porter LLP and subsequently at Freshfields Bruckhaus Deringer LLP, acting often on the defendant side in various patent disputes for large multi-national corporates of the likes of AstraZeneca, Becton Dickinson, Moderna and Merck Sharp & Dohme. He has a special focus in the life sciences and biotech fields, leveraging his First Class Masters degree in Chemistry from the University of Oxford.
Since May 2020, Paul has been a fee-paid judge of both the Employment Tribunals and First-Tier Tribunal, roles he combines with practice in a consultancy role. Paul brings technical, defendant-sided insight,experience and expertise to LionFish.
Robert joined LionFish as a Senior Adviser in April 2025. Called to the bar in 1973, a professor of law specialising on employment and previously an Employment Judge for 15 years, Robert is one of the leading authorities in the field of employment law.
Dovetailing his career as a barrister and an Employment Judge, he spent much of his career teaching Law in universities and was most recently Foundation Professor of Law at the University of Surrey, of which he is now an Emeritus Professor. As a recognised expert on Employment Law, Robert also has numerous publications to his name, including The Law of Termination of Employment.
Robert has been extensively involved in consultancy and has been a member of barristers'’ chambers. He has also been Chair of the International Labour Office’s Joint Panel for the Resolution of Internal Disputes and Grievances. More recently, he has been Chair of an Inquiry into the circumstances surrounding the dismissal of an employee of the States of Jersey and the implications for the employment policies, procedures and practices of the States.
Stuart Evans joined LionFish as Senior Adviser in November 2024.
Admitted in 1987, Stuart is a highly experienced litigation solicitor, serving as Partner at various law firms since 1995. He was previously Head of Commercial Litigation in London at BLM (now Clyde & Co)and prior to that spent 18 years at Rawlison Butler (now DMH) where he had a term as Head of Litigation.
With nearly 40 years of experience in the legal profession,he has acted mainly for large corporates, both in the UK and overseas from a variety of sectors, in proceedings relating to contractual, boardroom, construction and engineering, intellectual property and professional indemnity disputes on both the claimant and defendant side.
He was the European President of an international lawyers’ network and received an award for his services to that organisation. Stuart is also a qualified mediator and former member of the bar in the United States.