GlaxoSmithKline
GlaxoSmithKline plc (GSK) is a British pharmaceutical company headquartered in Brentford, London. Established in 2000 by a merger of Glaxo Wellcome and SmithKline Beecham, GSK was the world's sixth largest pharmaceutical company as of 2015
2013 UK sites. Research at Stevenage, Stockley Park, Ware; Manufacturing for prescription products at Irvine, Montrose, Ware, Barnard Castle, Worthing, Ulverston, and Cork; Manufacturing for consumer products at Maidenhead and Dungarvan