About Sophie E. Allen

Sophie Allen is Co-Chair of the London Tax Practice. Her practice focuses on the UK and international tax aspects of private equity and M&A transactions.

Having operated in the private equity sector for over 24 years as both a tax lawyer and tax accountant, she advises private equity houses and corporates on all tax aspects of the transaction cycle, including both investments and divestments, and works closely with principals, management and their advisers. Her advice includes restructuring, debt finance and capital markets transactions as well as fund, carry, management incentive and co-investment arrangements.

Concentrations

•M&A Tax
•Private Equity

Recognition & Leadership

Awards & Accolades

•Listed, The Legal 500 United Kingdom, Corporate Tax, 2026

 

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Services

Areas of Law

  • Other 1
    • Tax

Practice Details

  • Firm Information
    Position
    Shareholder
    Firm Name
    Greenberg Traurig, LLP
  • Representative Cases & Transactions
    Cases
    Experience: Representative Matters: SoftBank
    Advising SoftBank on its intended sale of semiconductor designer Arm.
    Advising SoftBank on its disposal of Indian solar-energy company SoftBank Energy to Adani Group at a $3.5 billion valuation, the largest solar energy deal in Indian M&A history.
    CQC: Advising Cambridge Quantum Computing (CQC) on its combination with Honeywell Quantum Solutions, creating the world's leading integrated quantum computing company
    setting the pace for what is projected to become a $1 trillion quantum computing industry over the next three decades.
    Imerys: Advising Imerys S.A.
    Omya A.G. on their disposal of Fiberlean Technologies, a leading manufacturer of an innovative, sustainable composite material, to Werhahn KG.
    Bain Capital
    Advising on the c.$4 billion 60% acquisition
    carve-out of the Kantar group from WPP.
    Advising on the 2.3 billion acquisition of Securitas Direct.
    Towerbrook Capital Partners
    Advising on the 400 million refinancing of the OVH group.
    Advising on various acquisitions including Bosal, Schweighofer Fiber, Infopro, Van Dijk,
    Jimmy Choo.
    Advising on various investments including into Aernnova, OVH
    Gravity Media Group.
    Advising on various disposals including AIM Aviation
    Van Geloven.
    Private equity house: Advising on various investments including into the Viroclinics, Dentalpro, Advanced Medical, IVC, Masternaut, Bigpoint, Ogone, Flow Traders,
    Multifonds businesses.
    PAI Partners: Advising on the acquisition of the Albea group.
    The above representations were h
    led by Ms. Allen prior to her joining Greenberg Traurig, LLP.
  • Additional Links

Experience

  • Bar Admission & Memberships
    Admissions
    2002, England and Wales
  • Education & Certifications
    Other Education
    College of Law, York
    LPC

    University of Birmingham
    LL.B.
    Law
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Attorneys FAQs

  • How many attorneys are in this law firm?
    Greenberg Traurig, LLP has 2750 attorneys at this location.
  • What year was this attorney's law firm established?
    Greenberg Traurig, LLP was established in 1967.