Garrett Hayes - McDermott Will & Emery


Garrett Hayes focuses his practice on a broad range of cross-border and domestic M&A and corporate advisory matters. His practice includes a broad range of general corporate work and includes advising on fund raising, strategic investments and joint ventures.

He has extensive experience in transactions in the telecoms industry, including M&A involving mobile network operators and telecoms infrastructure. Garrett also represents private equity sponsors, management teams, and portfolio companies on leveraged buyouts, equity incentive arrangements, restructurings and exits.


  • Advised a leading European private equity firm with over €8 billion of assets under management, on the acquisition of a significant minority stake in a leading supplier of insurance software*
  • Advised a leading European private equity firm, its founders, and the management team on the acquisition of a leading player in the primary research market, serving over 1,000 private equity funds, hedge funds, mutual funds and management consulting firms*
  • Advised a leading European private equity firm on the acquisition of the leading provider of Know-Your-Customer (KYC) and Client Lifecycle Management (CLM) software solutions for financial institutions*

Show More


  • The Legal 500 UK, Recommended, 2021 – 2024
  • Chambers UK, Telecommunications, 2023 – 2024


  • Ireland Funds Great Britain, Trustee


The College of Law London, LPC, 1995
Emmanuel College, Cambridge, MA, 1993

England and Wales