OOS is an international company providing highly qualified services within the offshore industry. The company has an unique position offering (turnkey) accommodation, heavy lift installation and decommissioning solutions. OOS owns a modern and advanced fleet, existing of state-of-the-art semi-submersible crane vessels (SSCV) with a crane capacity up to 4,400t in tandem lift, a sizeable hotel capacity of 500 to 750 persons on board and a specially reinforced large open deck space. Two SSCV units are currently under construction in China and two Multi Activity Units (Jack-Ups) for decommissioning and wind turbine installation are being designed. Through innovation and our team of professionals, passionate about their work and the industry, we are able to deliver excellence in order to lift your projects to a higher level.