Istanbul--J.P. Morgan & Co. has opened its first Turkish office in Istanbul. It will market the firm's financial services to corporations and banks. All marketing and business development efforts in Turkey will be overseen by Andrew MacCormack, managing director. Previously, Mr. MacCormack oversaw J.P. Morgan's India operations, operating out of Mumbai. J.P. Morgan is already one of the largest institutional market makers in Turkey. J.P. Morgan & Co. is headquartered in New York.