GSK plc, formerly GlaxoSmithKline plc, is a British multinational pharmaceutical and biotechnology company with global headquarters in London, England. Established in 2000 by a merger of Glaxo Wellcome and SmithKline Beecham, GSK is the tenth largest pharmaceutical company and #294 on the 2022 Fortune Global 500, ranked behind other pharmaceutical companies China Resources, Sinopharm, Johnson & Johnson, Pfizer, Roche, AbbVie, Novartis, Bayer, and Merck.

The company has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. As of August 2022, it had a market capitalisation of £70 billion, the eighth largest on the London Stock Exchange. It has a secondary listing on the New York Stock Exchange.

Established in 2000, by a merger of Glaxo Wellcome and SmithKline Beecham, GSK was the world’s sixth largest pharmaceutical company according to Forbes as of 2019, after Pfizer, Novartis, Roche, Sanofi, and Merck & Co. GSK is the tenth largest pharmaceutical company and #296 on the 2019 Fortune 500, ranked behind other pharmaceutical companies including China Resources, Johnson & Johnson, Roche, Sinopharm, Pfizer, Novartis, Bayer, Merck, and Sanofi. 

The company has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. As of August 2016, it had a market capitalisation of £81 billion (about US$107 billion), the fourth largest on the London Stock Exchange. It has a secondary listing on the New York Stock Exchange.

The mission statement of GlaxoSmithKline (GSK) is “To improve the quality of human life by enabling people to do more, feel better and live longer.”

GlaxoSmithKline's core values are: keeping consumers first, demonstrating respect for people, acting with integrity, and operating with transparency. Its mission is to enhance the quality of people's lives.

GSK is dedicated to developing innovative solutions to some of the most pressing healthcare challenges, and to making a positive impact on people's lives through its products and services. The company's mission is to use its expertise, resources, and experience to create new medicines, vaccines, and consumer healthcare products that help people do more, feel better, and live longer. 

According to its website, GlaxoSmithKline's vision is:

 "To help people do more, feel better, live longer." 

GSK is dedicated to finding innovative solutions to the most pressing healthcare challenges and to making a positive impact on people's lives. Through its research and development efforts, GSK aims to create new medicines, vaccines, and consumer healthcare products that help people do more, feel better, and live longer. 

Prescription medicines: GSK offers a comprehensive portfolio of prescription medicines in various therapeutic areas, including respiratory diseases, oncology, HIV, neuroscience, and vaccines.

Consumer Healthcare: GSK's consumer healthcare division offers over-the-counter (OTC) products, including oral healthcare, skincare, and nutritional products.

Vaccines: GSK is one of the world's largest vaccine manufacturers and offers a wide range of vaccines for various diseases, including flu, HPV, and meningitis.

Research and Development: GSK invests heavily in research and development to discover new medicines and vaccines to address unmet medical needs.

Manufacturing and Supply Chain: GSK operates a global network of manufacturing and supply chain facilities to produce and distribute its products around the world.

Digital Solutions: GSK is leveraging digital technology to improve patient outcomes and healthcare delivery, offering digital solutions for patient engagement, clinical trial management, and drug development.