UK locations

Around 16,000 people work for us in the UK across 18 sites, including our global headquarters

GSK House

GSK House

980 Great West Road
Brentford
Middlesex
TW8 9GS
Tel: +44 (0)20 8047 5000

Barnard Castle

Barnard Castle

Harmire Road
Barnard Castle
Co Durham
DL12 8DT
Tel: +44 (0)1833 690600

Harlow Location

Harlow

New Frontiers Science Park
Third Avenue
CM19 5AW
Tel: +44 (0)1279 622000
Fax: +44 (0)1279 622100

Irvine Location

Irvine

Shewalton Road
Irvine
Ayrshire
KA11 5AP
Tel: +44 (0)1294 274200

Maidenhead location

Maidenhead

Norreys Drive
Maidenhead
Berkshire
SL6 4BL
Tel: +44 (0)1628 426400

Montrose Location

Montrose

Cobden St
Montrose
Angus
DD10 8EA
Tel: +44 (0)1674 672606

Slough Location

Slough

11 Stoke Poges Lane
Slough
Berkshire
SL1 3NW
Tel: +44 (0)1753 533433

Stevenage location

Stevenage

Gunnels Wood Road
Stevenage Herts
SG1 2NY
Tel: +44 (0)1438 745745
Fax: +44 (0)1438 764502

Stockley Park Location

Stockley Park

Stockley Park West
Uxbridge
Middlesex
UB11 1BT
Tel: +44 (0)20 8990 9000

Ulverston Location

Ulverston

North Lonsdale Road
Ulverston
Cumbria
LA12 9DR
Tel: +44 (0)1229 582261