CSL Seqirus

CSL Seqirus is one of the world's largest influenza vaccine companies, operating the only injectable influenza vaccine manufacturing facility in the UK at Speke, Liverpool.

The site employs more than 650 people and produces egg-based and cell culture-derived influenza vaccines for seasonal and pandemic use, with surge capacity of up to 200 million doses.

CSL Seqirus's global headquarters is based in Maidenhead, Berkshire, and the company holds pandemic preparedness partnerships with multiple governments.