Danaos Corporation is a leading international owner of containerships, chartering vessels to many of the world's largest liner companies. Danaos as of June 6, 2013, Danaos has a fleet of 61 container ships aggregating 352,065 TEUs, making it among the largest container ship charter owners in the world.Danaos charters its containerships to a geographically diverse group of liner companies, including most of the largest ones globally. Such customers include Hyundai Merchant Marine, CMA-CGM, Hanjin Shipping, Yang Ming, Zim Integrated Shipping Services, Mediterranean Shipping Company, Maersk, Simatech Shipping LLC, COSCO, Hapag-Lloyd, Neptune Orient Lines, Norasia Container Lines Ltd and Wan Hai Lines.The headquarters are located in Piraeus Greece, but there is also a Branch Office in Pusan for Technical Support provided by own Riding Team. Moreover, a substantial part of Danaos chartering operations is carried out through Danaos Hamburg office, while the two offices based in Ukraine (Odessa, Mariupol), the one in Russia (St. Petersburg) and the one in Tanzania (Zanzibar), assist Crewing department with the task of globally coordinating manning of Danaos vessels.