GSK Headquarters Address, Head Office Location, and Contact Details
GSK plc (formerly GlaxoSmithKline) is one of the world’s leading research-based pharmaceutical and biotechnology companies, formed in 2000 through the merger of Glaxo Wellcome and SmithKline Beecham. The company focuses on the research, development, and manufacture of vaccines, specialty medicines, and general medicines, employing approximately 70,000 people across more than 70 countries worldwide. GSK plc is headquartered in Brentford, west London, and is listed on the London Stock Exchange under the ticker GSK and on the New York Stock Exchange as GSK.
Quick Facts
Head Office Address
GSK plc, 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom
Head Office Phone Number
+44 (0)20 8047 5000
Customer / Patient Enquiries
+44 (0)20 8047 5000
Customer Service Email
uk.response@gsk.com
Official Website
gsk.com
Chief Executive Officer
Emma Walmsley (CEO since 2017)
Industry
Pharmaceuticals / Vaccines / Biotechnology
Stock Exchange
London Stock Exchange (LSE: GSK) / New York Stock Exchange (NYSE: GSK)
GSK Head Office Address
Global Headquarters
GSK plc, 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom
Registered Office Address
GSK plc, 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom
London Research Centre
GSK plc, 1 Franklin Avenue, Stevenage, Hertfordshire, SG1 2NY, United Kingdom
Customer / Medical Correspondence
GSK, PO Box 1467, Uxbridge, UB11 1BT
About the GSK Head Office
GSK’s global headquarters is situated at 980 Great West Road in Brentford, west London, a purpose-built modern campus known as GSK House, which has served as the company’s primary base since 2002 when it was constructed following the merger of Glaxo Wellcome and SmithKline Beecham. The campus is located on the north bank of the River Thames in Brentford, approximately 10 miles west of central London, and is well connected by the District and Piccadilly lines (Gunnersbury and Brentford stations) and by the Elizabeth line at Ealing Broadway. The building is a landmark architectural development on the A4 Great West Road corridor and houses GSK’s global executive leadership, corporate finance, investor relations, legal, communications, and commercial teams.
GSK also maintains a major UK research and development presence at Stevenage in Hertfordshire, which serves as its primary UK medicines research campus. Standard head office business hours are Monday to Friday, 9am to 5pm.
How to Contact GSK
For general head office enquiries
Call +44 (0)20 8047 5000, which connects to GSK’s main switchboard at 980 Great West Road in Brentford. Lines are open Monday to Friday 9am to 5pm.
For UK medical and patient enquiries
Email uk.response@gsk.com or call +44 (0)20 8047 5000 and select the medical information option. The UK Medical Information team is available Monday to Friday 9am to 5pm and handles queries from healthcare professionals, patients, and carers about GSK medicines and vaccines.
For adverse event and side effect reporting
Report side effects of GSK products to the MHRA Yellow Card scheme at yellowcard.mhra.gov.uk or call 0800 731 6789. You may also report directly to GSK by emailing uk.safety@gsk.com.
For written correspondence
Write to GSK plc, 980 Great West Road, Brentford, Middlesex, TW8 9GS for all corporate and head office correspondence. For medical or patient correspondence, write to GSK, PO Box 1467, Uxbridge, UB11 1BT.
For press and media enquiries
Email media@gsk.com or visit gsk.com/en-gb/media for all UK and global press and media enquiries. The GSK press office operates Monday to Friday 9am to 6pm.
For investor relations
Visit gsk.com/en-gb/investors or write to Investor Relations, GSK plc, 980 Great West Road, Brentford, Middlesex, TW8 9GS.
For careers
Visit jobs.gsk.com for all GSK UK and global job vacancies.
GSK Senior Leadership
Chief Executive Officer
Emma Walmsley has served as Chief Executive Officer of GSK plc since April 2017, making her one of the longest-serving female CEOs of a FTSE 100 company. She joined GSK in 2010 and previously served as CEO of its Consumer Healthcare division before being appointed to the top role. In 2022, she oversaw the demerger of GSK’s consumer healthcare business into a separate company called Haleon plc, allowing GSK to focus exclusively on innovative medicines and vaccines. She has been widely praised for driving a significant transformation in GSK’s R&D pipeline and shareholder returns.
Chairman
Jonathan Symonds CBE serves as Non-Executive Chairman of GSK plc, having taken over from Sir Jonathan Symonds in 2021 and providing independent board oversight of the group’s strategy and governance.
Chief Financial Officer
Julie Brown serves as Chief Financial Officer of GSK plc, joining the company in 2023 from Burberry Group where she was CFO and COO. She oversees GSK’s global financial planning, reporting, and investor relations functions.
Frequently Asked Questions
Where is the GSK head office?
GSK’s global head office is at 980 Great West Road, Brentford, Middlesex, TW8 9GS, United Kingdom. The campus, known as GSK House, has been the company’s headquarters since 2002.
What is the GSK customer service or contact number?
The main GSK UK contact number is +44 (0)20 8047 5000, connecting to the head office switchboard in Brentford. For medical information queries, email uk.response@gsk.com.
Who is the CEO of GSK?
Emma Walmsley is the Chief Executive Officer of GSK plc. She has held the role since April 2017 and is one of the most prominent female CEOs in global business.
What does GSK stand for?
GSK stands for GlaxoSmithKline, the name under which the company operated from 2000 until it rebranded to simply GSK in 2021. The company was formed by the merger of Glaxo Wellcome and SmithKline Beecham.
What is Haleon and how does it relate to GSK?
Haleon plc is a consumer healthcare company that was demerged from GSK in July 2022. It owns brands such as Sensodyne, Panadol, Centrum, and Voltarol, and is separately listed on the London Stock Exchange. GSK itself now focuses exclusively on prescription medicines and vaccines.
How do I report a side effect of a GSK medicine?
Report side effects via the MHRA Yellow Card scheme at yellowcard.mhra.gov.uk or call 0800 731 6789. You may also email GSK directly at uk.safety@gsk.com.