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Harriet Territt has 20 years of experience in resolving significant financial disputes and regulatory issues with a particular focus on the cutting edge of financial technology. Her practice covers all forms of complex financial instruments, with significant experience relating to derivatives and structured products. She regularly solves disputes by negotiation, mediation, and wholesale restructuring of transactions as well as by representing clients in court and related proceedings. Harriet is actively involved in Jones Day's global, cross-disciplinary LIBOR transition team, advising on the full range of legal and regulatory issues arising from the forthcoming market transition to alternative reference rates.

Increasingly, Harriet works with clients on liability, risk, and governance issues arising out of the fintech revolution such as DLT (distributed ledger technology, also known as blockchain), AI implementations, payments, crypto assets, digital currencies, alternative finance arrangements, and consumer facing products. She is a founding member of Jones Day's blockchain initiative and coauthor of Jones Day's multijurisdictional blockchain overview.

Harriet is regularly asked to advise on complex issues related to global financial sanctions and money laundering rules. She deals with related matters including market abuse allegations and has undertaken highly confidential internal investigations and compliance reviews for clients in the financial and regulated sector. She represents organizations and senior individuals in enforcement proceedings before regulators such as the FCA (Financial Conduct Authority).

Harriet is co-chair of the Jones Day Women's Group, helping to develop the next generation of female business leaders.


  • PolyOne acquires Clariant color and additive masterbatch business for $1.5 billionJones Day advised PolyOne Corporation in the $1.5 billion purchase of Clariant’s global color and additive masterbatch business.
  • Macquarie sold Condor FerriesJones Day advised Macquarie Infrastructure and Real Assets in the sale of Condor Ferries, an operator of lifeline freight and passenger ferry services between Guernsey, Jersey, the United Kingdom, and the Port of St. Malo in France, to a consortium of Columbia Threadneedle European Sustainable Infrastructure Fund (ESIF) and Brittany Ferries.
  • Sumitomo Heavy Industries invests $46 million into Highview PowerJones Day advised Sumitomo Heavy Industries, Ltd., a technology leader in industrial machinery and environmental and power technologies, in its $46 million investment into Highview Power, a global leader in long-duration energy storage solutions.
  • Inflexion Private Equity acquires Aspen PumpsJones Day advised Inflexion Private Equity Partners LLP, one of the UK's leading mid-market private equity firms, on its acquisition of the Aspen Pumps group from 3i Group plc.
  • Pepper Group to sell Pepper European Servicing to Link Group for €165 millionJones Day is advising Pepper Group Limited, a leading diversified global consumer finance business, in connection with its sale of Pepper European Servicing (PES) to Link Group.
  • United Nations University obtains assistance with "Survivor's Package" for survivors of modern slavery and human traffickingJones Day conducted worldwide research for the United Nations University Centre for Policy Research to assist in the development of a "Survivor Package" for survivors of modern slavery and human trafficking.
  • Sumitomo Heavy Industries acquires InvertekJones Day advised Sumitomo Heavy Industries, Ltd. in the acquisition of the entire issued share capital of Invertek Drives Ltd.
  • Goldman Sachs acquires portfolio of secured and unsecured financial leasing originated by ING BankJones Day represented Goldman Sachs International in connection with the acquisition of a portfolio of secured and unsecured financial leasing originated by ING Bank N.V.
  • Loungers completes £185 million IPO on AIMJones Day represented Loungers plc, an operator of 146 cafés, bars, and restaurants across England and Wales, in connection with its £185 million (US$239 million) initial public offering on the Alternative Investment Market of the London Stock Exchange.
  • Westpac Banking Corporation and State Bank of India provide US$1.7 billion financing to Indian Oil CorporationJones Day represented Westpac Banking Corporation and State Bank of India in connection with a US$1.7 billion financing provided to Indian Oil Corporation Ltd.
  • Huadong Medicine announces £169 million (US$222 million) takeover offer for and acquisition of Sinclair Pharma PlcJones Day advised Huadong Medicine Co. Ltd. ("HMC") and its subsidiary, Huadong Medicine Aesthetics Investment (HongKong) Limited ("Huadong"), on Huadong's takeover offer for and acquisition of Sinclair Pharma Plc with a total value of approximately £169 million (US$222 million).
  • SunTrust Robinson Humphrey and SunTrust Bank-led syndicate provide $1.1 billion credit facility to EquifaxJones Day advised SunTrust Robinson Humphrey, Inc., as left lead arranger, and SunTrust Bank, as administrative agent, in connection with a $1.1 billion senior revolving credit facility provided by a syndicate of lenders to Equifax Inc., a consumer credit reporting agency.
  • iQ Student Accommodation acquires Pure Student Living from L1 TreasuryJones Day acted for iQ Student Accommodation in relation to its acquisition of the UK focused Pure Student Living student housing property portfolio and business from LetterOne Treasury.
  • Reynolds American acquired by British American Tobacco Plc in deal valued at $49 billionJones Day advised Reynolds American Inc. ("RAI") regarding the acquisition by British American Tobacco, p.l.c. ("BAT") of 57.8 percent of the outstanding shares of RAI not owned by BAT and its affiliates in a transaction valued at $49 billion.
  • Exotix Partners defends litigation relating to $10 million back to back LMA loan tradesJones Day successfully represented Exotix Partners LLP in English Commercial Court proceedings instigated by a hedge fund seeking to unwind back to back loan trades (under LMA standard terms) where Exotix acted as a matched principal broker.
  • Fourth Alcuin Fund acquires minority stake in Air Charter ServiceJones Day represented The Fourth Alcuin Fund LP, a fund managed by Alcuin Capital Partners LLP, in connection with its minority stake investment in Air Charter Service, a global leader in providing aircraft charters.
  • XIO acquires Lumenis for approximately $510 million, $14 per share, in cashJones Day advised XIO Group in its acquisition of Lumenis Ltd., the world's largest energy-based medical company for surgical, ophthalmology, and aesthetic applications, for $14 per share in cash, for an aggregate purchase price of approximately $510 million.
  • Chevron sells companies holding Vietnam Block B offshore gas development project interests to Vietnam Oil and Gas Group (PetroVietnam)Jones Day advised Chevron Corporation affiliates on the sale of their shares in three Bermuda companies that held Chevron's interests in the Block B offshore gas development project in Vietnam.
  • Whitgift Centre Croydon sold to Westfield/Hammerson joint ventureJones Day advised FTI Consulting LLP on their appointment as receivers over the Whitgift Centre in Croydon and on its subsequent sale to a Westfield/Hammerson joint venture for an undisclosed sum.
  • Macquarie European Infrastructure Fund sells Wightlink Ferries to Balfour Beatty Infrastructure PartnersJones Day advised Macquarie European Infrastructure Fund LP (MEIF) in connection with the sale of Wightlink Ferries to Balfour Beatty Infrastructure Partners LP.
  • Speaking Engagements

    • June 24, 2020
      FMLC 2020 Judicial Seminar, providing senior UK judiciary with an update on types of financial market litigation which may arise from COVID-19.
    • June 18, 2019
      PILnet 2019 European Convening, Panel event on Supporting the Resilience of Organized Civil Society: Regaining Legitimacy with the Help of Law and Technology
    • April 30, 2019
      World Justice Forum 2019, Chairing panel on Why Business Needs to be Part of the Movement Towards Global Access to Justice
    • April 4, 2019
      INSOL International Annual Conference, Blockchain: Where are the Opportunities?
    • August 1, 2018
      ASEAN Law Conference 2018, Chairing the Panel on Disruptive Technologies on Business Landscapes in ASEAN: Opportunities and Challenges
    • May 2, 2018
      Bingham Centre for the Rule of Law, Global Rule of Law Exchange annual conference
    • June 6, 2017
      Navigating Risk and Regulatory Change, Bloomberg Compliance Symposium.
    • May 25, 2017
      Enforcing and Challenging Arbitral Awards in England and Wales, Presentation to Pepperdine School of Law, Straus Institute for Dispute Resolution Summer Program
    • September 15, 2016
      Blockchain Forum – Singapore
    • September 14, 2016
      DD2.0 - Rebooting the Compliance Diligence Process
    • June 29, 2016
      Brexit: UK votes to leave the EU: What happens next?
    • February 10, 2016
      The Blockchain: What Is This Technology? Why Does It Matter?
    • June 17, 2015
      Yukos Billion Dollar Message and Its Implications for the Current Foreign Investment Climate In Russia
    • May 21, 2015
      Enforcing and Challenging Arbitral Awards - the Straus Institute for Dispute Resolution
    • April 30, 2014
      British Expertise - Sanctions: Practice and Pitfalls
    • October 17, 2013
      American Bar Association - Section of International Law: Investing in Emerging Countries: Practical Tips
    • October 16, 2013
      Navigating Global Risk
    • September 25, 2013
      Ethical Business in a Changing World - A Joint AWLL and Jones Day Workshop
    • May 22, 2013
      Enforcing and Challenging Arbitral Awards in England and Wales, Pepperdine University
    • February 2, 2012
      Globalization of Anti-Corruption Enforcement: Russia
    • October 2011
      Litigation in the OTC Derivatives Market, ISDA Symposium
    • October 2011
      IQPC Anti-Money Laundering and Financial Crime Summit
    • October 2011
      Anti-Corruption Nuts & Bolts, ABA Conference
    • June 30, 2011
      Managing Your Risk - Bribery, Corruption and Business Ethics
    • May 2011
      Managing your Risk - Bribery, Corruption and Business Ethics
    • January 19, 2011
      Integrity Management Workshop
    • January 2011
      The 19th Annual London MCLE Fair (UK Bribery Act 2010)
    • January 2011
      Maintaining Integrity in a Changing World, Jones Day and Control Risks on the Bribery Act 2010 Seminar
    • October 2010
      ISDA Symposium® - Litigation in the OTC Derivatives Market
    • June 2010
      ISDA Symposium® - Litigation in the OTC Derivatives Market
    • January 2009
      Panel Discussion on Fraud
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