OSF Construction Co., Ltd. was established in 1996 by Osman Fırat.  Since then, OSF has been a company of simple integrity with straightforward values and an unwavering dedication to see our project commitments through. These values combined with our technical expertise and ability to perform has earned us the respect and reputation.

OSF has been specialised in road constrcutions and infrastructural projects which are fundamentals of civilization. Since June 2007, OSF has ISO 9001:2000 Quality Certificate on Infrastructural and Superstructure Construction Services, Design and Engineering Services.

OSF reaches his targets with its highly qualified and commited  staff and OSF pay attention to satisfaction of his personnel The fact that a large percentage of  work is from repeated clients demonstrates  that OSF consistently deliver projects and fullfill client expectations.

With its international standardized services,  OSF has been driving succesfully as "General Contractor" for road construction projects of Turkish Republic General Directorate of Highways, Special Operation Departments of provinces and infrastructural projects of metropolitan municipalities.

Focusing national and international general contracting projects, OSF keep continuous development and invest on not only mechanical park but also gaining of highly qualified personnel and centralised computerised  project management systems (ERP)

OSF Construction is the locomotive company of OSF Group in construction sector. Fırat Mining Ltd., İzmer Prefabrik Ltd. And CDF Petrol Ltd. Companies are sister companies of OSF Construction.