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Graham Iversen focuses his practice on corporate tax matters, including mergers and acquisitions, private equity transactions, joint ventures, partnerships, corporate restructurings, debt and equity finance, derivatives, structured investments, real estate and tax disputes.

Graham joined the firm from Slaughter and May in London, where he was a partner in the firm’s London office in their tax department for more than 14 years. He has been a corporate tax attorney for more than 22 years, since joining Slaughter and May’s tax department in 1992.



  • Advised on a large number of public and private takeovers and mergers, share sales, asset and business sales, joint ventures and demergers. Representative transactions include:
    • Advised Black Dragon Capital in connection with its acquisition of Grass Valley, a leading technology supplier of advanced broadcast and media solutions, with operations in over 20 different jurisdictions worldwide.
    • Advised the then GlaxoWellcome group on its merger with SmithKline to form GlaxoSmithKline, at that time the UK’s largest corporate merger.°
    • Advised the Abbey National group on its acquisition by the Santander banking group.°
    • Advised Cable & Wireless Communications on a number of its recent international acquisitions and disposals.°
    • Advised the Darty group on the sale of Comet electricals to entities advised by OpCapita LLP.°
    • Advised the Royal Mail group on its financial services joint venture with the Bank of Ireland.°
    • Advised the INEOS group on its petrochemical trading and refining joint ventures with PetroChina in the UK and France.°
    • Advised the INEOS group on its chemicals joint venture with BASF.°
    • Advised BTR on its merger with Siebe to form the group then known as Invensys.°
    • Advised Schroders’ investment bank on its demerger from the Schroders group and its subsequent acquisition by Citibank.°
    • Advised the Darty group on its demerger from the Kingfisher group.°
    • Advised one of the UK’s largest building and construction companies on a number of development joint ventures and acquisitions.°
  • Advised a number of private equity fund managers and private equity-owned companies on acquisitions, disposals, restructurings and IPOs.°
  • Advised on the establishment and restructuring of a number of investment partnerships.°
  • Advised Her Majesty’s Treasury on the Business Finance Partnership, a co-investment arrangement between H.M. Treasury and investment funds managed by private sector fund managers under which funding has been provided to mid-sized UK businesses.°
  • Advised on a large number of financing transactions, including high yield and other bond issues; bank regulatory capital issues; securitisations and other repackagings; structured finance transactions, both UK and cross-border; syndicated and bilateral loan finance; and project finance. He has extensive experience of the taxation of debt and equity instruments, derivatives (including currency, interest rate, index and equity derivatives), repos, stock loans, convertible and exchangeable instruments, equity-linked and asset-linked debt, other hybrid instruments and other funding and hedging structures. Representative transactions include:
    • Advised an international telecommunications group on its high yield bond issues, credit-linked note issues and revolving and term loan facilities.°
    • Advised a European retail group on its bond and loan facilities.°
    • Advised a European petrochemicals group on its bond and loan facilities.°
    • Advised a number of European banks on various bond and debt facilities, including asset-linked, credit-linked and other structured notes and regulatory capital issues.°
    • Advised a European banking group on its residential mortgage securitisation programme.°
    • Advised a UK credit card issuer and consumer credit lender on a number of credit card portfolio acquisitions and securitisations.°
    • Advised on the acquisition and project financing of a UK power station.°
  • Advised Her Majesty’s Treasury on a number of actions taken to preserve the stability of the UK banking sector, including:
    • The recapitalisations of The Royal Bank of Scotland, Lloyds and HBOS.°
    • The nationalisation of Bradford & Bingley, the transfer of its retail business to the Santander group and its subsequent integration with Northern Rock.°
    • The establishment and operation of H.M. Treasury’s Asset Protection Scheme.°
    • The administration of Dunfermline Building Society and the transfer of its retail business to Nationwide.°
    • The administration of the English subsidiaries of the Icelandic banks Kaupthing and Landsbanki and the transfer of their retail businesses to ING Direct.°
    • The sale of Northern Rock by H.M. Treasury to Virgin Money.°
  • Advised a number of issuer companies, financial sponsors and underwriters on IPOs and related equity capital markets transactions. Representative transactions include:
    • Advised the Countrywide group on its recent IPO.°
    • Advised the Stocks Spirits group on its recent IPO.°
    • Advised Cairn Energy on the IPO of some of its oil exploration businesses.°
  • Advised on debt restructurings and other business restructurings.°
  • Advised on the acquisition, disposal, development and financing of UK real estate and infrastructure assets.°
  • Advised on a number of tax disputes and investigations, including transfer pricing, CFC and structured investment disputes.°
  • Advised on tax-related disputes between parties to M&A indemnity, warranty and other contractual arrangements.°
  • Advised on the establishment and restructuring of management incentive plans.°
  • Advised on the proposed establishment of a new UK bank.°

°The above representations were handled by Mr. Iversen prior to his joining Greenberg Traurig, LLP.

Recognition & Leadership

  • Listed, Best Lawyers in the United Kingdom, Tax Law, 2023-2025
  • Listed, The Legal 500 UK, 2022
  • Listed, The Legal 500 United Kingdom, 2021, 2023
    • Corporate Tax, 2023-2024
    • U.S. Taxes: Non-Contentious, 2021 
  • Listed, Chambers UK, Tax, 2014, 2016-2017
  • Listed, Chambers Global, Tax (UK), 2014-2016
  • Listed, Chambers Europe, Tax, 2014
  • Listed, Super Lawyers magazine, United Kingdom Super Lawyers, 2013
  • Listed, Who's Who Legal, 2013
  • Member, British Private Equity & Venture Capital Association, Tax Committee


  • B.A., Law (Jurisprudence), University of Oxford, 1989
  • England and Wales