Calum Thom - McDermott Will & Emery


Calum Thom represents clients on cross-border and domestic transactions including buy-outs, strategic M&A joint ventures and co-investments. Calum has a broad range of experience in a variety of industries including the pharmaceutical, health care, real estate, energy, chemicals and retail sectors.


  • Represented Apposite Capital
      – on its acquisition of a majority shareholding in CrestOptics, a world leader in the development and manufacture of advanced systems for fluorescence microscopy from XYence Capital SGR S.p.A. and management

      – on the spin out of CrestOptics diagnostic business to management

  • Represented Palamon Capital Partners LLP
      – on its exit of Bissonte S.p.A. to LOOK Holdings; and

      – on various equity arrangements of a number of acquisitions

  • Represented Ampersand Capital Partners in its investment with KKR in a business combination of leading life sciences reagents and custom synthesis and manufacturing services companies, Biosynth Carbosynth and vivitide Inc.

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  • The Legal 500 UK, Recommended Lawyer in Corporate and Commercial: M&A Lower Mid-Market, 2021 – 2023


University of Edinburgh, Scotland, Diploma in Legal Practice, 2009
University of Aberdeen, Scotland, Bachelor of Law (LLB) in European Legal Studies, 2007
University of Maastricht, The Netherlands, 2005

The Law Society of Scotland