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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 2,100 employees in Ireland across five sites in Ballydine, Co Tipperary, Brinny, Co Cork, Carlow and Dublin. With our commitment to Inventing for Life firmly in mind MSD, and in particular our 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 twenty products, saving and enhancing lives in over sixty countries around the world. Our extensive Human Health portfolio includes a comprehensive vaccines portfolio for every stage of life as well as innovative solutions and treatments for conditions such as Cancer, where MSD Ireland plays a key role in the manufacture and supply of our immuno-oncology medicine. Information regarding career opportunities across MSD Ireland can be viewed at

Financial Data

  • 31st Dec 18 Source: Company
    • €8.2 billion turnover
    • 2,100 employees
  • 31st Dec 17 Source: Company
    • €6.1 billion turnover
    • 1,700 employees


By Turnover

(€8.2 billion)

By Employees

15th in Top Companies By Turnover
  • 2,100
  • €8.2 billion


  • Ger Brennan Country Manager

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