The major cluster of ship management companies in Germany - based in and around Hamburg, and which has developed into a European power center due especially to banks’ and investors’ massive investments in new ships – is not just challenged by the financial collapse in Germany, but also by commercial and technical ship management companies in Asia, says Martin Krafft, Commercial Director of Columbia Shipmanagement (Deutschland), a company under Schoeller Holdings, which manages around 70 ships and is one of biggest ship management companies in Hamburg.