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Home›Companies›GSK
GSK logo

GSK

London, United Kingdom Pharmaceutical 66,000 employees Founded 1715 GSK gsk.com ↗
4 Products & services
193 Licensed medicines
161 Clinical trials
3 Sites
66,000 Employees

About GSK

GSK (GlaxoSmithKline) is a British multinational pharmaceutical and biotech company headquartered in London, focused on vaccines, HIV, respiratory and oncology medicines.

Sector
Pharmaceutical
Headquarters
London, United Kingdom
Founded
1715
Employees
66,000
Facilities
3 sites

Milestones

Milestones as listed on gsk.com, checked 26 Sep 2026. Details can change; the linked page is the authoritative source.

1715
Plough Court pharmacy opened by Silvanus Bevan
Earliest GSK heritage business.
Source: gsk.com
1848
Thomas Beecham opened his first shop
Source: gsk.com
1880
Burroughs Wellcome & Co. founded in London
Source: gsk.com
1969
Glaxo introduced its first asthma medicine
Source: gsk.com
2000
Glaxo Wellcome and SmithKline Beecham merged to form GlaxoSmithKline
Source: gsk.com
2009
ViiV Healthcare launched with Pfizer
Source: gsk.com
2022
Consumer healthcare demerged to form Haleon
Source: gsk.com

Leadership Team

Leadership as listed on gsk.com, checked 26 Sep 2026. Details can change; the linked page is the authoritative source.

Luke Miels

Chief Executive Officer
Source: gsk.com

Julie Brown

Chief Financial Officer
Source: gsk.com

Lynn Baxter

President, Europe
Source: gsk.com

Mike Crichton

President, International
Source: gsk.com

James Ford

SVP and Group General Counsel, Legal and Compliance
Source: gsk.com

Maya Martinez-Davis

President, US
Source: gsk.com

Products & Services

Products and services as listed on gsk.com, checked 26 Sep 2026. Details can change; the linked page is the authoritative source.

Therapeutic area

Respiratory, immunology and inflammation

Specialty medicines and vaccines focus area.

Source: gsk.com
Therapeutic area

Oncology

Cancer medicines focus area.

Source: gsk.com
Therapeutic area

HIV

HIV medicines focus area.

Source: gsk.com
Therapeutic area

Infectious diseases

Vaccines and medicines for infectious diseases.

Source: gsk.com

Sites in Ireland

Dublin

Office

Irish headquarters at CityWest; sales, marketing, market access and medical teams.

Source: gsk.com

Cork

Office

Office at Cork Airport Business Park.

Source: gsk.com

Carrigtohill, Co. Cork

Laboratory

Laboratory giving analytical support to GSK's global manufacturing sites and supply chains.

Source: gsk.com

Sites as listed on gsk.com, checked 26 Sep 2026. Details can change; the linked page is the authoritative source.

Pipeline & Regulatory Record

What public registers list for GSK (group figures): clinical trials it sponsors, FDA device clearances, Irish licences, recent approvals and supply shortages. Rebuilt daily, last on 10 Oct 2026.

161Trials as lead sponsor
91Recruiting now
8With a site in Ireland
0FDA device clearances

Clinical trials 161 in our ClinicalTrials.gov registers · 17 in the EU register

StudyPhaseStatus
A Study to Evaluate the Efficacy, Safety, and Tolerability of Using an Oral Once-daily 2 Drug Regimen Compared to an Oral Once-daily 3 Drug Regimen for the Treatment of Human Immunodeficiency Virus (HIV)-1 in Adults Who Have Not Previously Taken Antiretroviral Therapy
NCT05979311 · site in Ireland · HIV, HIV Infections
Phase 3Active, closed
Efficacy and Safety Comparison of Niraparib to Placebo in Participants With Human Epidermal Growth Factor 2 Negative (HER2-) Breast Cancer Susceptibility Gene Mutation (BRCAmut) or Triple-Negative Breast Cancer (TNBC) With Molecular Disease
NCT04915755 · site in Ireland · Neoplasms, Breast
Phase 3Active, closed
Attachment Inhibitor Comparison in Heavily Treatment Experienced Patients
NCT02362503 · site in Ireland · HIV Infections
Phase 3Active, closed
A Study of GSK5764227 in Participants With Relapsed Small Cell Lung Cancer (SCLC) [EMBOLD SCLC-301]
NCT07099898 · site in Ireland · Neoplasms, Lung
Phase 3Recruiting
Depemokimab as an Extended Treatment Duration Biologic in Adults With Chronic Obstructive Pulmonary Disease (COPD) and Type 2 Inflammation
NCT06959095 · site in Ireland · Pulmonary Disease, Chronic Obstructive
Phase 3Recruiting
A Study of Belantamab Mafodotin Administered in Combination With Lenalidomide and Dexamethasone (BRd) Versus Daratumumab, Lenalidomide, and Dexamethasone (DRd) in Participants With Newly Diagnosed Multiple Myeloma (NDMM) Who Are Ineligible for Autologous Stem Cell Transplantation (TI-NDMM)
NCT06679101 · site in Ireland · Multiple Myeloma, Newly Diagnosed Multiple Myeloma
Phase 3Recruiting
A Study on the Immune Response and Safety of a Combined Vaccine Against Diphtheria, Tetanus and Acellular Pertussis (dTpa) in Japanese Healthy Pregnant Women
NCT07596199 · Diphtheria-Tetanus-acellular Pertussis Vaccines
Phase 3Active, closed
Trial to Evaluate Safety and Immune Response of an Investigational Pneumococcal Vaccine in Adults Aged 50 To 64 Years
NCT07428759 · Pneumonia, Bacterial
Phase 1Active, closed
A Study on the Immune Response and Safety of Vaccine Against Respiratory Syncytial Virus Given to Chinese Adults 18 to 59 Years of Age at Increased Risk of Respiratory Syncytial Virus Disease
NCT07220109 · Respiratory Syncytial Virus Infections
Phase 3Active, closed
A Study to Evaluate Blood Levels of Bepirovirsen in Adult Participants With Severe or Moderate Kidney Disease
NCT07168356 · Hepatitis B
Phase 1Active, closed

Showing 10 of 161, trials with Irish sites first. The full lists are on the sponsor pages below.

All trials by sponsor name 3 registry names

Drugs in these trials 92 compounds

EU trials register (CTIS) 17 authorised or ongoing · 2 in Ireland

Recent approvals

  • ExdensurEMA · depemokimab · 12 Feb 2026

Medicine shortages 2 in the FDA list

  • Fluticasone Propionate and Salmeterol Xinafoate Aerosol, MeteredUS (FDA) · resolved · updated 27 Jul 2026
  • Maraviroc SolutionUS (FDA) · resolved · updated 20 Jan 2026

A company is listed here when it is named on the shortage record; a shortage can have several manufacturers. See the US and German shortage trackers.

NICE technology appraisals 21 of its medicines · 21 current

Appraisals of medicines sold under a brand this company holds in EMA or FDA records, from our NICE appraisals register. NICE decisions apply to the NHS in England. © NICE 2026 technology appraisal guidance. Available from www.nice.org.uk/guidance. All rights reserved. Subject to Notice of rights. NICE guidance is prepared for the National Health Service in England. All NICE guidance is subject to regular review and may be updated or withdrawn. NICE accepts no responsibility for the use of its content in this product/publication.

Group (GSK): founded 2000, headquarters London, website gsk.com. Wikidata Q212322 · Wikipedia. From Wikidata (CC0), matched by the group's SEC filer number.

How this is matched: register records are linked to this page by the organisation name they carry, here GlaxoSmithKline; ViiV Healthcare; Viiv Healthcare UK Limited; GlaxoSmithKline Biologicals; Glaxosmithkline Research & Development Limited; GSK PLC and 10 more. Spot a wrong match? Tell us.

Financials & Irish Entities

From the annual reports GSK plc files with the US Securities and Exchange Commission (20-F, IFRS), in GBP as reported. Latest financial year: to Dec 2025.

£32.7bnRevenue
£7.5bnR&D expense
23.0%R&D as % of revenue
£5.7bnNet income (17.5% margin)
Revenue and R&D expense, GBP bn£0.0bn£10bn£20bn£30bn£40bnDec 2021Dec 2022Dec 2023Dec 2024Dec 2025Dec 2021: £25bn (Revenue)Dec 2022: £29bn (Revenue)Dec 2023: £30bn (Revenue)Dec 2024: £31bn (Revenue)Dec 2025: £33bn (Revenue)RevenueDec 2021: £5.0bn (R&D expense)Dec 2022: £5.5bn (R&D expense)Dec 2023: £6.2bn (R&D expense)Dec 2024: £6.4bn (R&D expense)Dec 2025: £7.5bn (R&D expense)R&D expense
RevenueR&D expense
Year toRevenueR&DR&D %Net incomeFiling
Dec 2025£32.67bn£7.53bn23.0%£5.72bn20-F 2026
Dec 2024£31.38bn£6.40bn20.4%£2.58bn20-F 2026
Dec 2023£30.33bn£6.22bn20.5%£4.93bn20-F 2025
Dec 2022£29.32bn£5.49bn18.7%£14.96bn20-F 2024
Dec 2021£24.70bn£5.02bn20.3%£4.39bn20-F 2024

Each year is taken from the most recent annual report that includes it, so earlier years reflect any later restatement. Source: SEC EDGAR (XBRL financial data). Compare companies on the pharma company financials register.

Companies registered in Ireland 6 active in the CRO register

CompanyCRO no.RegisteredLast accounts
Glaxosmithkline (Ireland) Limited
LTD - Private Company Limited by Shares
155131955Dec 2024
Stiefel Laboratories Legacy (Ireland) Limited
LTD - Private Company Limited by Shares · LEI 2138008PMGGC7WN2QO54
498501974Dec 2024
Smithkline Beecham (Cork) Limited
LTD - Private Company Limited by Shares · LEI 549300HZWFXYDEEPO255
2170281994Dec 2024
Glaxosmithkline Trading Services Limited
LTD - Private Company Limited by Shares · LEI 549300LUUARXC1IWCI61
4064462005Dec 2025
Glaxosmithkline Export Limited
External company
9101192024—
Glaxosmithkline Research & Development Limited
External company
9102362024—

From the Companies Registration Office (CRO Open Data, CC BY 4.0). A company is listed when GLEIF's legal entity register links it to GSK plc as its ultimate parent, or when we checked its name and registered address by hand. Branches of foreign companies appear as "External company". Spot a missing or wrong entry? Tell us.

In the News

No coverage yet — our newsroom tracks GSK continuously.

Research Publications

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FDA Recalls (US)

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