Gemsan A.Ş. is a contracting company that provides services on building turnkey industrial establishment projects and the sub-disciplines of such projects both in Turkey and Abroad. EPC tank storage tank vendor. Pipe prefabrication.Our Vision; is to rank among the world's leading construction companies with our experience and background, byapplying the state of the art technologies and innovations in building industrial establishments.Our Mission; with the advanced technology and engineering support in the area of industrial construction, GEMSANprovides services in accordance with its customers'​ expectations and international norms, within the scope determined in HSE and Quality Policies.