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Last Updated: 07/05/2026
Alnylam Pharmaceuticals
South East England
Founded 2002
European hub for RNAi therapeutics developer
Alnylam UK is the European operational headquarters of Alnylam Pharmaceuticals, the pioneer of RNA interference therapeutics.
Based in Maidenhead, the UK office serves as Alnylam's primary base for European commercial operations, medical affairs, and regulatory activities.
Alnylam has six approved RNAi medicines on the market, with a pipeline spanning rare genetic, cardiometabolic, and CNS diseases.
The company's GalNAc conjugate delivery platform underpins its portfolio of siRNA therapeutics that silence disease-causing genes in the liver.
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