History
Our History In Ireland
We were once a small company with big ideas. The only thing that's changed is our size. Honoured by the support of the Limerick and Dublin communities, we are continuing to expand our Irish operations.
Regeneron’s history spans 30 years of a relentless focus on science.
Open European business office in Dublin, Ireland
Hire first employees in Ireland
Invest in first ex-U.S. Industrial Operations and Product Supply (IOPS) site in Limerick


Achieve planning approval and commence construction and upgrade work on the IOPS
Limerick facility

Hire 350th employee (exceeding initial projection of 300 employees by the end of 2016)
Commence construction of new quality control labs and process sciences building at the IOPS Limerick site

Recieve HPRA site approval for the IOPS Limerick facility within 21 months of commencement of project operations
Manufacture first validation batches

Announce plans to invest an additional $100 million and add 300 jobs at the IOPS Limerick site
Receive first Food and Drug Administration (FDA) and European Medicines Agency (EMA) approvals to manufacture medicine in Ireland for sale in the U.S. and EU
Marks the thirtieth anniversary of Regeneron’s founding


Construction commences on new laboratory and administrative building in Limerick

Reach milestone of 1,000th employee in Limerick and announce the addition of 400 new jobs