Helen Lethaby covers a broad spectrum of tax transactional matters for corporates, global financial investors, and asset managers. Her work includes public and private M&A, joint ventures, IPOs, restructuring, and financings, and spans a number of sectors, including telecommunications, energy and infrastructure, insurance, healthcare, tech, fintech, and consumer- and retail-based businesses. 

Ms. Lethaby also has extensive experience advising on partnership taxation matters and management incentivization. While much of her work in this area is sponsor-side, she has acted for a number of founders and management teams on exit and rollover tax considerations.

Ms. Lethaby has advised numerous financial institutions on structured and asset finance deals during the course of her career.  

Ms. Lethaby’s experience since joining Latham & Watkins includes advising:


  • Founder and management shareholders on the sale of a 50.03% stake in Lightsource bp, a UK-based developer and operator of solar power plants, to BP plc
  • RWE on its:
    • Sale of a 49% stake in Dogger Bank South Wind Farm, a UK-based wind farm project, to MASDAR; and
    • Acquisition of a 4.2-Gigawatt UK Norfolk Offshore Wind Zone portfolio from Vattenfall  
  • GoGreen Investments, a special purpose acquisition company, on its business combination with Lifezone Metals, a developer of clean battery metals
  • Energy Capital Partners on its £1.3 billion acquisition of Biffa PLC, a UK waste management business which includes technologically-driven energy generation services

Manufacturing, Mining, Industrials, and Chemicals

  • Norsk Hydro on the sale of a 30% stake in Alunorte, a Brazil-based alumina production company, and a 45% stake in Mineracão Rio do Norte, a Brazil-based Bauxite mining company, to Glencore
  • Spectrum Equity Management on the acquisition of a minority stake in Benchmark Mineral Intelligence, a UK-based provider of independent prices, data, and advisory services for the lithium ion battery and electric vehicle (EV) supply chain
  • Atotech, a Germany-based provider of specialty chemical processes and equipment, on its sale to MKS Instruments


  • Epiris on its acquisition of Inchcape Shipping Services, a global provider of port agency and marine services
  • APG and GIP, alongside existing shareholder AustralianSuper, on the acquisition of a 37.4% holding in Peel Ports Group from DWS
  • Agility Public Warehousing on its acquisition of John Menzies, a UK-based company engaged in logistic solutions


  • Abcam plc, a biotechnology company, on its US$ 5.7 billion acquisition by Danaher
  • Senior secured lenders on the restructuring of the Lifeways Group, a regulated UK healthcare business
  • ArchiMed on its acquisition of Instem, a UK-based software medical technology company
  • Open Health Communications, a portfolio company of Astorg Partners, on its:
    • Acquisition of The CM Group, a medical communications platform
    • Acquisition of Acsel Health, a management consulting business specializing in the life sciences industry
  • Astorg Partners on its acquisition of Open Health Communications, a UK-based provider of healthcare communications and market access services
  • BenevolentAI, a leading, clinical-stage AI-enabled drug discovery company, on its US$1.5 billion business combination with Odyssey Acquisition S.A., a Euronext Amsterdam-listed special purpose acquisition company 
  • CVC Asia Pacific on its acquisition of a majority stake in Professional Services, Inc., a Philippines-based network of private hospitals and clinics
  • Astorg Partners on its sale of Clario's Software Solutions business, an end-to-end solution to support the clinical trial life cycle, to Sitero


  • Canva on its acquisition of Serif Group Limited, a UK-based provider of creative tools for professional designers and photographers and parent company of Affinity 
  • Permira and Blackstone on the landmark European private credit loan financing of take-private of Adevinta
  • Spectrum Equity on its:
    • Acquisition of a majority stake in Netcraft, a UK-based provider of internet security services
    • Minority investment in OTA Insight, a UK-based data intelligence platform for the hospitality industry
  • Viking Global as the lead investor in Series C financing Cognism Limited, a UK-based software company
  • Crownpeak Technology, a portfolio company of K1 Investment Management, on its acquisition of Attraqt Group, a provider of artificial intelligence-powered search, merchandising, and recommendation software to online retailers and brand owners


  • Shift4, a leading provider of integrated payment and technology solutions, on its acquisition of Finaro, a cross-border eCommerce payments provider 
  • Körber on its acquisition of omnichannel and global freight audit and payment services from enVista, a global software and consulting services provider
  • Accurate Background on its acquisition of Vero Screening, a UK-based provider of employment screening and background verifications
  • Leeds Equity Partners on its acquisition of TalentNeuron, a provider of human capital data and insights subscription solutions

Financial Services

  • AllianceBernstein, a leading global investment management and research firm, on the formation of its joint venture with Société Générale
  • Zimmer Partners on the sale of Carrick Holdings, a Bermuda-based insurance and reinsurance management business, to Northlight Group
  • TA Associates on its investment in MRH Trowe, a Germany-based commercial lines insurance broker
  • Astorg and Epiris on their £1.6 billion acquisition of Euromoney, a financial news and information business
  • Epiris on the completed demerger of Fastmarkets from Delinian, the global B2B information services business formerly known as Euromoney Institutional Investor PLC and a portfolio company of Epiris 
  • Warburg Pincus on its acquisition of a majority stake in two Indonesia-based insurance companies from Mapfre
  • The Royal London Mutual Insurance Society on its acquisition of Scottish Equitable's UK-based business consisting of life insurance, critical illness, and income protection policies

Entertainment, Sports & Media

  • Apollo Global Management in connection with the acquisition by Concord Music Catalog, a subsidiary of Alchemy Copyrights, of Hipgnosis Songs Fund, a Guernsey-based music IP investment and song management company
  • Bridgepoint and Canada Pension Plan Investment Board (CPPIB) on the sale of Dorna Sports, a Spain-based sports management, media, and marketing company which holds the global commercial rights to the MotoGP and WSBK Championships, to Liberty Media
  • CVC on its acquisition of Jagex, a UK-based video game developer
  • Netrisk Group on merger with Bauer Media Group of their online comparison businesses across six Central and Eastern European countries
  • TWG Global and Billie Jean King Enterprises on a joint venture with the International Tennis Federation to create a new partnership for the Billie Jean King Cup, the women’s World Cup of Tennis
  • Bridgepoint Advisers on its:
    • Acquisition of PEI Group, a UK-based provider of market insight, data, and journalism focused primarily on alternative asset class investment activity
    • Acquisition of MiQ Digital, a marketing intelligence company
  • Dynasty Equity Partners, a global sports investment firm, on its strategic investment in Liverpool FC
  • The consortium led by Todd Boehly and Clearlake Capital on its £4.25 billion acquisition of Chelsea Football Club
  • Authentic Brands Group on its strategic partnership with David Beckham to co-own and manage Beckham’s global brand
  • KKR on its US$1.1 billion acquisition of Kobalt Capital’s music rights portfolio
  • 888 on its: 
    • £2.2 billion acquisition of William Hill International
    • Accelerated bookbuild placing of 19.1% of its issued share capital, for 230 pence each
  • PureGym and its majority shareholder Leonard Green & Partners on the £300 million equity investment in the PureGym Group by KKR
  • The Chernin Group on its investment in the 49ers Football Group SPV for the purpose of acquiring outstanding shares in Leeds United Football Club Limited and Elland Road Limited

Real Estate

  • Hilton Worldwide Holdings on its:
    • Acquisition of Graduate Hotels brand
    • Joint venture acquisition of a majority stake in Sydell Group, an owner, developer, and manager of hotels
  • ESR Group Limited, APAC’s largest real asset manager, on the US $270 million sale of its ARA Private Funds business to Sumitomo Mitsui Finance and Leasing Company Limited
  • An affiliate of a Southeast Asian investor on its sale of a stake in a Malaysian shopping mall operator
  • Warburg Pincus on its strategic partnership with No Va Land Investment Group Corporation
  • Sale of an equity stake in Competitive Socialising Group Limited, a portfolio company of Cain International and parent company of experiential leisure and hospitality brand Swingers, to entities controlled by Knighthead Capital Management
  • Chelsea FC on a variety of real estate matters, including structuring, management, and franchise matters relating to the Millennium & Copthorne Hotels at Stamford Bridge, London
  • A global private equity firm on its investment in a joint venture with a leading logistics real estate developer in Korea
  • Sale of Center Parcs Europe resorts in Germany, Netherlands, and Belgium to Aroundtown*
  • GIC on the acquisition of a significant minority stake in Nordic Aviation Capital*

Consumer & Retail

  • Whirlpool on its joint venture with Arcelik, a Turkey-based company that manufactures household appliances, to combine their European domestic appliance businesses into a newly formed entity
  • L’Oreal on its US$ 2.5 billion acquisition of Aesop, an Australia-based luxury beauty brand, from Natura & Co
  • Yellow Wood Partners on its acquisition of Elida Beauty, a UK-based provider of personal care products, from Unilever  
  • PAI Partners and BCI in connection with the sale of a majority stake in Refresco, one of the world’s largest independent beverage contract manufacturers, to KKR
  • Landon Capital on its investment in a consortium of US family offices (Landon, IVEST, and Silverfern) that acquired Paladone, a lifestyle products and wholesale gift supply company
  • The lenders on the restructuring of the Steinhoff International Holdings, a global holding company with investments in retail businesses


  • Lithia Motors on its acquisition of Pendragon’s car dealership business and its joint venture with Pendragon to roll out its Pinewood software in North America 

*Matter handled prior to joining Latham

Bar Qualification

  • England and Wales (Solicitor)


  • Legal Practice Course, College of Law, 1995
    with distinction
  • Wharton Certificate in Management, College of Law, 1994
    with distinction
  • BA, Fitzwilliam College, 1993
    First Class Honours

Languages Spoken

  • English