MSD Ireland is the Irish division of Merck & Co., known as MSD outside the US and Canada. It employs over 2,000 people across five Irish sites and has invested over €2.2 billion in Ireland over five decades. MSD manufactures or packages many of its leading products in Ireland, including 12 of its top 20 global products. It is focused on partnerships with Irish hospitals that support education, patient programs, and disease management. MSD is adapting to changes in the healthcare system by realigning resources and account managers to focus on growth areas like infectious disease and oncology.