Company Overview

Company Overview

Merck & Co., New Jersey is a global research-driven pharmaceutical company and is the fifth largest pharmaceutical company in the world. Outside North America it is known as MSD.

It delivers innovative health solutions through its prescription medicines, vaccines, biologic therapies, and animal health products to address unmet medical needs. Core product categories include diabetes, cancer, vaccines and hospital acute care.



Company in Ireland

MSD has 5 facilities supported by IDA with over 1,900 permanent jobs. It has invested over €2.2 billion in Ireland. It procures significant amounts of Irish-sourced raw materials and services.

MSD Ireland plays a key role in developing and commercialising key pharmaceutical and biologic drugs in Merck’s pipeline-small molecule, biologics and vaccines. These facilities manufacture active pharmaceutical ingredients and/or finished dosage forms for 10 of Merck’s top twenty drugs. For example, Brinny and Carlow supply clinical batch supplies and commercial product of Keytruda, the leading biologic-based auto-immune cancer medicine which has achieved $7.1bn in sales for Merck.

MSD Ireland continues to invest in its facilities in Ireland

There were two significant announcements in 2018:


MSD in Swords

MSD Swords will be repurposed as a state of the art, digital-enabled multi-product commercial bulk drug substance facility. When the investment is completed and the facility is in operation by 2021, Swords will be the primary site for the manufacture of Merck’s immunotherapy blockbuster Keytruda (pembrolizumab).

MSD Red Oak in Leopardstown, Co. South Dublin

MSD Human Health Conducts MSD’s clinical research, marketing and sales activities in Ireland. Global Financial Services Supports business transactions in the areas of data analytics and managed services such as travel and meetings for over 100 countries

MSD in Carlow

A state-of-the-art vaccines and biologics manufacturing facility currently producing many products in various therapeutic areas including: oncology, autoimmunity, pneumonia and infectious disease

MSD in Ballydine, Co. Tipperary

Undertakes the late stage development, clinical supplies, regulatory filings and manufacturing of active pharmaceutical ingredients and drug product formulations for new innovative products in the small molecule arena

MSD in Brinny, Co. Cork

A BioPharma centre of excellence specialising in the development, fermentation, purification, aseptic filling and testing of biopharma products.

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