Barclays PLC is a British multinational bank and financial services company headquartered in London. Founded in 1690, it operates in over 40 countries and serves millions of customers worldwide. The bank offers a range of services, including personal banking, investment banking, and wealth management. As one of the largest banks in the United Kingdom, Barclays is known for its innovative financial products and commitment to sustainability. It is listed on the London Stock Exchange and is a constituent of the FTSE 100 Index, reflecting its significant presence in the global financial market.