About Us

Iran Oston Consulting Engineers was established in 1977 and has since played a pivotal role in delivering engineering services across Iran’s major infrastructure sectors, including highways, railways, roads, bridges, tunnels, buildings, subways, and geotechnical projects.

The company’s primary aim is to support national construction initiatives and sustainable development by continuously enhancing the quality of its engineering services. To date, Iran Oston has been extensively involved in the studies and supervision of over 6,413 Km of roads, railways, and associated technical infrastructure. This includes the design and oversight of 607 large bridges totaling approximately 104 Km, 157 tunnels spanning about 126 Km, and 52 galleries covering nearly 3 Km.

As a pioneer in its field, Iran Oston was the first consulting firm in Iran to receive the Quality Assurance Management System certification in 2001 from SGS Switzerland, covering road, railway, bridge, and tunnel design. The company also earned the distinction of being the first to achieve a repeat Grade 1 ranking from the Planning and Budget Organization for railway projects.

Iran Oston has published 92 independent publications alongside numerous articles in respected magazines, journals, and periodicals. It has made significant contributions to the development of engineering specifications and guidelines, both independently and in collaboration with industry stakeholders.