Brown Brothers harriman Bank (BBH) was established in 18 18, initially providing banking services to support the international trade of raw materials. At the end of 19, the exchange rate of the British pound was regarded as the official exchange rate by the new york Stock Exchange (published every morning on 10). At that time, new york's exchange rate was called "Brown Exchange Rate". Prescott bush, the grandfather of American President Joe Bush, was a partner of BBH in 1950s.
At present, Brown Brothers harriman Bank mainly engages in five businesses, namely, investor service (global custody), asset market (foreign exchange and brokerage business), investment management, corporate finance and commercial banking. 62% of BBH's revenue comes from customers outside the United States, which is much higher than many peers in the industry. 70% of BBH's custody assets are transnational assets.