Global banking refers to the operations and activities of financial institutions, such as commercial banks, investment banks, and other financial intermediaries, that operate on an international scale. It involves the provision of various financial services, including but not limited to, deposit-taking, lending, trade financing, foreign exchange, asset management, and investment banking services across different countries and jurisdictions.

These companies play a crucial role in facilitating global trade and investment by providing financing, risk management, and advisory services to clients involved in international business activities. They also engage in capital markets activities, such as underwriting securities offerings, facilitating mergers and acquisitions, and trading various financial instruments.