HSBC Bank Middle East Limited is the largest and most widely represented international bank in the Middle East.The Imperial Bank of Persia (Persian: بانک شاهنشاهی ایران; Bank-e Šâhanšâhi-ye Irân) was a British bank that operated as the state bank and bank of issue in Iran (formerly known as Persia until 1935) between 1889 and 1929. It was established in 1889 with a concession from the Persian government to Baron Julius De Reuter (born Israel Beer Josaphat), a German Jewish banker and businessman who later became a Christian and a British subject.