GlaxoSmithKline (GSK) is a leading global pharmaceutical company headquartered in London, formed from the merger of Glaxo Wellcome and SmithKline Beecham in 2000. In 2023, GSK reported a 5% increase in total sales to £30.3 billion, driven by their vaccines and specialty medicines divisions, while focusing on sustainability initiatives aligned with the UN's Sustainable Development Goals. The company strives for long-term commitments to health innovation, sustainability, and community engagement, aiming to serve 2.5 billion people by 2030.