Inchcape Shipping Services (ISS), the world's largest privatelyowned marine management services company, is planning to double its business by 2010. The company was acquired earlier this year by the Dubai Government-owned investment group Istithmar PJSC following ISS being put up for sale by its parent Electra Investment Trust Plc. Initially, 25 companies expressed interest which was short-listed to five with Istithmar being the successfully bidder.