Martin O’Donoghue focuses on mergers and acquisitions, business purchases and disposals, joint ventures, share subscriptions, corporate finance and commercial contracts. He has considerable international experience, having advised clients on commercial transactions in the U.K., Ireland, the U.S., Europe, Africa and Asia.

Martin is a results-driven and commercially focused solicitor, with an M.B.A. and background as a founder and builder of businesses. He is consistently recognised by the Legal 500 for advising on M&A transactions. Martin possesses comprehensive knowledge of mergers and acquisitions, private equity, joint ventures and corporate transactions generally; as well as a very strong knowledge of commercial contracts and banking.

In addition, Martin’s representations span various industries including health care, biotechnology, fintech, real estate and hospitality.

Martin also currently serves as non-executive director of Axon Healthcare Investments, a venture capital fund that sources and supports successful medical businesses


Prior to joining Armstrong Teasdale, Martin was in private practice with various other top-tier firms, where he worked on mergers and acquisitions, joint ventures, private equity investment, shareholder agreements, share subscriptions, corporate financing, bank and loan financing, general corporate work and commercial contracts.


  • Henley Business School  (M.B.A., 2018)
  • Law Society of England and Wales  (Solicitor, 2010)
  • Law Society of Ireland  (Solicitor, 2005)
  • University College Dublin  (Honours Graduate, 2000)


  • England and Wales, 2010
  • Republic of Ireland, 2005


  • The Legal 500, Recommended Lawyer, M&A: Smaller deals up to £50M (2016-present)


  • French
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