[2] In mid-1914 the Orientbank absorbed the Levantine network of Deutsche Palästina-Bank, established in the late 19th century as an earlier endeavor to develop German economic influence in the Ottoman Empire.
It was part of a broader German push to gain influence in the Ottoman Empire, also involving Deutsche Bank and the financing of the Berlin–Baghdad railway.
[5] In addition to the Berlin head office and the branches in Constantinople and Hamburg, by 1913 it had opened in Adana, Bursa, Dedeağaç, and Mersin.
After the war, the bank's Levantine network was liquidated by the Public Custodian of Enemy Property under British rule.
[8] In Hamburg, the Orientbank's branch was established in a prominent building on the Jungfernstieg quayside, designed by Martin Haller and Hermann Geissler [de] and completed in 1899; it later became offices for Dresdner Bank, then Commerzbank.