AOS is an Abu Dhabi (United Arab Emirates) based ISO 9001:2015, ISO 14001:2015 and Environmental Management System – OHSAS 18001:2007 accredited company, which offers wide range of services and products for oil & gas, petrochemical and marine industries in the Middle East, Asian African region nearly two decades. Our marine,offshore and onshore activities . Rig Maintenance Shutdown,Turnkey Projects,Supply Of Equipment,Overseas Recruitment