The Onsan Group has been active in the construction sector for 48 years in Turkey and abroad.

 

Our main activities

 

• Construction 

• Infrastructure Construction

•          Road construction 

• Projects related to energy, hydroelectric dams

• Large-scale housing construction

 

• Onsan's engineering and operations activities began in 1973, initially for highway construction, and later for the construction of social facilities and roads for Aliaga's petrochemical facilities.

 

• From 1978 onwards, he was hired as a Class A contractor for the construction of many buildings of the bank Türkiye İş Bank, in different cities, to be recognized as a Class A contractor, as is the case of our company, the contractor need to work accurately and maintain a level of high quality applications supported with technical knowledge and experience.

 

 

 

• Onsan Construction is one of the first two Turkish companies to have experience of applying the form of exposed concrete for the construction of the Türkiye İş Bank buildings.

 

• Since 1986, the construction of many prefectures and social facilities of the İller Bank was carried out with precision by our company. Also in this period our company played an important role in the construction of major industrial areas, such as the İkitelli Organized Industrial Zone in Istanbul, Türkiye. In addition to the construction of towers, after the Marmara earthquake in 1999, our company started to manufacture villa type houses, considering the needs and heavy public demands and paid attention to the ecological structure system by disassembled forms of wood, as well as concrete material . . Thus, we carry out the projects of the site, which consist of several houses of wooden houses that have ecological and fireproof properties provided by us in our country.

 

• In 2006 and later, our company had the honor of establishing wooden houses with steel construction, which would be used during the 2010 World Cup in Johannesburg / South Africa, using wood processing techniques and special technology.

 

• On Poivre Island, which is one of the 120 islands of the Republic of the Seychelles in the Indian Ocean, the construction of tourist facilities was carried out using a special manufacturing technique that mainly includes wood material. Also the Marina and the Airport of Poivre Island were built by our company.

 

•          Our company has already started the construction of a social housing project,       which consists of 40,000 houses, for the Armed Forces of the Government of Angola and 10.000 houses, for the Ministry of Education of the Government of Angola.

 

At the same time, Onsan has several experiences working overseas through his own companies, which have been incorporated into Germany, Russia, Iraq, Seychelles, Burkina Faso, South Africa and Angola