London Stock Exchange (LSE) is a stock exchange in the City of London, England, United Kingdom. As of August 2023, the total market value of all companies trading on the LSE stood at $3.18 trillion. Its current premises are situated in Paternoster Square close to St Paul's Cathedral in the City of London. Since 2007, it has been part of the London Stock Exchange Group. The LSE is the most-valued stock exchange in Europe as of 2023. According to the 2020 Office for National Statistics report, approximately 12% of UK-resident individuals reported having investments in stocks and shares. According to the 2020 Financial Conduct Authority (FCA) report, approximately 15% of UK adults reported having investments in stocks and shares.

The Bank of England is the central bank of the United Kingdom and the model on which most modern central banks have been based. Established in 1694 to act as the English Government's banker and debt manager, and still one of the bankers for the Government of the United Kingdom, it is the world's eighth-oldest bank.