Katja Butler

Katja Butler

Partner, Private Equity
Katja Butler advises financial investor clients on all aspects of their investments, from initial acquisition to exit. She also advises on the execution of exit planning and co-investment terms.


Ms. Butler was ranked in Chambers UK 2021 for Private Equity: Buyouts and was named to Law.com International’s 2021 list of Rising Stars, which recognised the U.K.’s top 25 up-and-coming women attorneys. In 2020, Ms. Butler was named Best in Private Equity by the Women in Business Law European Awards, as a Notable Practitioner in Private Equity and M&A by IFLR1000 2020 and as a Next Generation Partner by The Legal 500 UK 2022. She is part of the Skadden London private equity practice described by clients in The Legal 500 UK as “hard working, dedicated, smart, commercial, client focused. Simply the best.” In 2019, Ms. Butler was named one of Law360’s Rising Stars in private equity and as one of Legal Week’s 40 Under 40: The Rising Stars In Private Equity. In 2018, she was featured on the The Lawyer’s Hot 100 list, which recognises the U.K.’s top lawyers, and in 2017 was recognised by the same publication as one of London’s top female private equity stars. Ms. Butler also was named as a Female Future Leader by the Financial Times in its HERoes: Champions of Women in Business List 2018 and as Best in Private Equity at the Euromoney LMG 2020 Europe Women in Business Law Awards.

Ms. Butler representations include advising:

  • JAB Holdings in its joint venture with BNP Paribas Cardif to deliver a range of pet insurance services throughout the U.K., EMEA and Latin America;
  • Litera, a portfolio company of Hg, in its acquisition of Kira Systems; 
  • Silver Lake in its €700 million acquisition of a majority stake in Group Meilleurtaux from West Street Capital Partners, the private equity arm of Goldman Sachs Group;
  • Coty Inc. in its strategic partnership with KKR & Co. Inc. including the carveout sale of 60% of its professional beauty and retail hair businesses to KKR with an enterprise value of US$4.3 billion and further sale of part of Coty’ s stake in the joint venture to KKR;
  • funds advised by Castik Capital in the sale of approximately 25% of portfolio company Waterlogic Holdings Limited to British Columbia Investment Management Corporation;
  • funds advised by Castik Capital in their acquisition of two IP management services and software companies, ipan Group and Delegate, and their subsequent merger with CPA Global, a portfolio company of Leonard Green Partners and Partners Group;
  • CPI International, Inc., a portfolio company of Odyssey Investment Partners, LLC, in its acquisition of TMD Technologies Ltd;
  • funds advised by Castik Capital in their acquisition of AddSecure from Arby Partners;
  • Pret A Manger Ltd, a portfolio company of JAB Holding Company LLC, in its acquisition of EAT Limited;
  • HighQ in its sale to Thomson Reuters Corporation;
  • Hg:
    • in connection with its significant investment in IFS and WorkWave businesses, at a $10 billion valuation;
    • in its further investment in Lyniate alongside other institutional clients of Hg;
    • in its further investment in Litera;
    • in its investment in Managed Markets Insights & Technology, LLC; 
    • in its sale of Mitratech to Ontario Teachers’ Pension Plan Board, and on the terms of its continued minority investment in Mitratech;
    • its investment in Dext;
    • in connection with its acquisition of Benevity, Inc. alongside General Atlantic, JMI Equity and the Benevity management team;
    • in connection with its acquisition of Gen II Fund Services LLC as part of a consortium with General Atlantic and IHS Markit;
    • in its investment in Hyperion Insurance Group Limited; 
    • in its co-investment arrangement with TA Associates in connection with its investment in global tax software provider Sovos through the Hg Saturn 2 fund;
    • in its acquisition of a minority stake in Argus Media, an independent provider of energy and commodity price reporting;
    • in its £410 million sale of U.K.-based visual effects producer Foundry to Roper Technologies, a U.S.-headquartered technology company specializing in niche markets;
    • in its sale of a minority stake in portfolio company Visma to the Canada Pension Plan Investment Board;
    • as lead investor in the US$5.3 billion buyout of Visma, a leading provider of business software in the Nordic region. This was Europe’s largest-ever software buyout;
    • in its further €640 million investment in Visma;
    • in its sale of Ullink SAS to Itiviti AB, a portfolio company of Nordic Capital;
    • in its sale of Parts Alliance to Uni-Select Inc. for £205 million;
    • in its investment in Mitratech, alongside TA Associates and the management team at Mitratech;
    • in its investment in Kinapse from Synova Capital;
    • in its investment in Sovos Compliance, alongside Vista Equity Partners;
    • in its acquisition of Raet from CVC Capital Partners;
    • in its sale of a minority stake in portfolio company JLA, together with a refinancing;
    • in its equity recapitalisation of portfolio company IRIS; and
    • in its acquisition of The Foundry from The Carlyle Group for US$312 million;
  • Montagu portfolio companies, including Equatex, Open GI, Funeral Services Partners, Covidence and DEAS, in their capital structures;
  • Montagu Private Equity in its sale of Covidence to EMK Capital LLP;
  • Montagu Private Equity and the other shareholders of Equatex in its €354 million disposal to Computershare;
  • IRIS Software Group Ltd in its acquisition of FMP Global;
  • Castik Capital portfolio company Waterlogic in bolt-on acquisitions and its capital structure;
  • TPG Capital in its acquisitions of:
    • TSL Education from Charterhouse Capital Partners; and
    • a majority stake in Victoria Plumb from the Walker Family.



  • Legal Practice Course, The College of Law Moorgate, London, 2007
  • M.A. (Law), Trinity Hall, University of Cambridge, 2006


  • Solicitor, England & Wales

Katja Butler