Derya Group was founded in 1992 in Istanbul, Turkey. Site activities cover port and pier construction, upper module construction, shipbuilding and ship repair, steel construction, offshore, pipelines and irrigation canal construction. Derya Construction, Dentek Ship and Doga Energy are the subsidiaries of Derya Group and all companies continue completing and providing services with high quality, sustainable competitive advantage, engineering proficiency, advanced technology, meticulousness and effective communication skills both in national and international areas, being ranked among the leading companies in Turkey. Derya Group proceeds by predicating on science, technic and experience, while placing utmost importance on national and international codes, regulations & clause, shows sensitivity to the environment and individuals and ensures an advanced level of occupational safety and environmental training. Derya Group is certified by the Turkish Accreditation Agency (TURKAK) and the international certification body AJA Registrars with ISO 14001:2004 Environmental Management Systems, ISO 9001:2008 Quality Management Systems and OHSAS 18001:2007 Occupational Health and Safety Standards Certificates and continues to strengthen their market presence with accomplished projects and breaking grounds.