The collaborative culture that works with clients to reach your project goals; and the capability to leverage innovation to meet emerging trends and keep clients at the forefront. This is DOR RIZ. In Oil, Gas and Petrochemical market, collaborating with DOR RIZ, clients are gaining a proven, reliable and trusted full-service partner comprising Iranian professionals as well as vast range of construction machineries across Iran. DOR RIZ Engineering Company was incorporated in Tehran, Iran in 1985. It was intended to bring together the considerable expertise available in the country and unite it into cohesive and effective multidisciplinary engineering, procurement, construction and commissioning resource pool. The key factor enhancing company’s success is managing the integration of engineering and procurement services into construction activities. The result of such integration has been reflected in dozens of successful projects within the preset budget, time and quality levels.