GSK House
980 Great West Road
Brentford
Middlesex
TW8 9GS
Tel: +44 (0)20 8047 5000
UK locations
GSK globally has 100,000 employees. Here in the UK, we have around 16,000 employees across 18 sites, including our global headquarters.
Barnard Castle
Harmire Road
Barnard Castle
Co Durham
DL12 8DT
Tel: +44 (0)1833 690600
Harlow
New Frontiers Science Park
Third Avenue
CM19 5AW
Tel: +44 (0)1279 622000
Fax: +44 (0)1279 622100
Irvine
Shewalton Road
Irvine
Ayrshire
KA11 5AP
Tel: +44 (0)1294 274200
Maidenhead
Norreys Drive
Maidenhead
Berkshire
SL6 4BL
Tel: +44 (0)1628 426400
Montrose
Cobden St
Montrose
Angus
DD10 8EA
Tel: +44 (0)1674 672606
Slough
11 Stoke Poges Lane
Slough
Berkshire
SL1 3NW
Tel: +44 (0)1753 533433
Stevenage
Gunnels Wood Road
Stevenage Herts
SG1 2NY
Tel: +44 (0)1438 745745
Fax: +44 (0)1438 764502
Stockley Park
Stockley Park West
Uxbridge
Middlesex
UB11 1BT
Tel: +44 (0)20 8990 9000
Ulverston
North Lonsdale Road
Ulverston
Cumbria
LA12 9DR
Tel: +44 (0)1229 582261