London Stock Exchange | 143,641 followers on LinkedIn. The London Stock Exchange is at the heart of where ideas meet capital and become reality. Home to nearly 2,000 companies from over 100 countries, with a combined value of £4.8 trillion. Whether you’re a business seeking greater horizons, a government with an ambitious sustainability agenda, a pension fund seeking returns for your client, we provide the flexibility to make the connections you need to create real impact.