An Taoiseach Micheal Martin with Martin McAuliffe, Merck

Merck to create 370 jobs for Cork over the next five years

Two major projects comprise part of €440m Cork expansion
An Taoiseach Micheal Martin with Martin McAuliffe, Merck

23 May 2022

Merck is expanding its membrane and filtration manufacturing capabilities in Ireland, a move that will lead to the creation of 370 new jobs by 2027.

A leading science and technology company, Merck will invest approximately €440 million to increase membrane manufacturing capacity in Carrigtwohill and to build a new manufacturing facility at Blarney Business Park, both in Cork, Ireland.

Merck will spend €150 million building the new filtration manufacturing facility at Blarney Business Park. Once fully operational, it will increase Merck’s global manufacturing capacity and supply customers producing both traditional and novel treatments and therapeutics.  

With the more than €290 million expansion in Carrigtwohill, Merck is adding a manufacturing facility for the immersion casting of membranes. These membranes support novel and gene therapies, as well as applications like virus sterilisation, plasma separation and finger prick rapid testing. The membranes also serve the Process Solutions business, which is one of the ‘Big three’ growth drivers for Merck. Process Solutions markets products and services for the entire pharmaceutical manufacturing value chain.




Merck aims to increase its group sales to approximately €25 billion by 2025. To achieve this growth target, the company increased its total investments between 2021 and 2025 significantly compared with the period from 2016 to 2020.

The announcement follows a €36 million investment at the same site in 2021 for a second lateral flow membrane manufacturing product line. Now formally open, this facility produces lateral flow membranes, most commonly used in rapid diagnostic testing for rare diseases such as dengue fever, malaria and Ebola. They are also a key component in rapid antigen tests, which are used for the detection of Covid-19.

Merck’s life science business sector is continuing to invest in products and technologies across its portfolio that are key to manufacturing novel therapies and vaccines, including single-use solutions, high-potency active pharmaceutical ingredients (HP-APIs) and novel modalities, such as antibody-drug conjugates (ADCs) and viral and gene therapies (VGTs).

Over the next five years, Merck will implement investment programmes worldwide. Target countries include Germany, China, France, Switzerland, Ireland, and the USA. All expansion projects include clear targets for energy efficiency, water consumption and waste treatment to support Merck in meeting its goal to be carbon-neutral by 2040, in line with its sustainability strategy.

Recently, Merck announced expansion projects in its life science business sector in Wuxi, China; Darmstadt, Germany; Buchs, Switzerland; Molsheim, France, Carlsbad, California, USA; Madison, Wisconsin, USA; Jaffrey, New Hampshire, USA; and Danvers, Massachusetts, USA. These expansions are part of an ambitious, multi-year programme to increase the industrial capacity and capabilities of Merck’s life science business sector to support the growing global demand for lifesaving medications and to make significant contributions to public health.

“Ireland is central to our strategy to drive long-term growth and expand our global leadership position in life science,” said Matthias Heinzel, member of the executive board of Merck, and CEO, life science. “The investment in Cork is the biggest site investment in the history of our life science business and will accelerate the delivery of the critical products, technologies and services our customers need to fight the world’s toughest health challenges, including Covid-19.”

Martin McAuliffe, managing director and head of Cork operations at Merck, said: “Today’s announcement of the decision to construct a new membrane manufacturing facility in Carrigtwohill and the development of a new filtration manufacturing facility in Blarney is a testament to the capability, hard work and dedication of all our colleagues here in Cork. Beyond that, it is a statement of Merck’s commitment to our Irish operations. These new investments secure a bright future for Merck in Cork and enable us to expand our capabilities here, generating new employment opportunities in future technology.”

IDA Ireland CEO Martin Shanahan said: “This significant investment announced today by Merck – the largest the global life sciences and Technology business has ever made in a single site, is very welcome. This announcement demonstrates the continued growth and success of Ireland’s life sciences sector and indeed IDA Ireland’s continued commitment to winning jobs and investment for regional locations.

“These developments in Carrigtwohill and Blarney will have a significant positive economic impact on the Southwest region, during the initial construction period and also with the number of full-time roles that will be created as a result of the expansion. Merck’s decision to increase its footprint is tangible evidence of the company’s confidence in Ireland’s ability to provide access to world-class talent. I want to assure the team at Merck of IDA Ireland’s continued support and wish them every success with this major investment.”

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