Iranian Oil Company
National Iranian Gas Company
National Iranian Petrochemical Company
South pars Gas Refineries
Tehran oil Refinery
Esfahan oil Refinery developing plant
Bandar Abass Refinery
Bidboland gas Refinery ( EPS Engineering Of naphtha Unit and Revamping Of Storage tanks )
Bandar Emam Petrochemical Company ( Iran & Japan Petrochemical Plant )
Bosher Petrochemical Plant
Boalisina Petrochemical Company
Morvarid Petrochemical company ( Olefin Plant )
Ghadir Petrochemical Company
Iran Oil Terminal Company
Pars Karaneh Oil Terminal ( Offshore and Onshore )
Sar cheshmen Acid Sulfuric Plant
Ilam Olefin Plant
Saba Petrochemical Plant
Chabahar Methanol Plant
Pars Industrial Carbon Black
Iran Carbon Fiber Company