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MSD Ireland is one of the country’s leading healthcare companies, having first established here over 50 years ago. MSD, known as Merck & Co. Inc., Kenilworth, NJ, USA in the US and Canada, has operations in more than 140 countries and employs over 2,500 people in Ireland across five sites in Ballydine, Co Tipperary, Brinny, Co Cork, Carlow and Dublin. With its commitment to Inventing for Life firmly in mind MSD, and in particular its Irish sites, make products that touch the lives of many patients across the country each day. MSD’s Irish sites manufacture approximately half of the company’s top 20 products, saving and enhancing lives in over 60 countries around the world. Its extensive Human Health portfolio includes a comprehensive vaccines portfolio for every stage of life as well as innovative solutions and treatments in areas such as oncology, where MSD Ireland plays a key role in the manufacture and supply of its immuno-oncology medicine.

Financial Data

  • 31st Dec 19 Source: Company
    • €11.9 billion turnover
    • 2,500 employees
  • 31st Dec 18 Source: Company
    • €8.2 billion turnover
    • 2,100 employees


By Turnover

(€11.9 billion)

By Employees

12th in Top Companies By Turnover
  • 2,500
  • €11.9 billion


  • Ger Brennan Country Manager

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