Zolal Iran : Established in 1984, Zolal Iran focused its projects in the field of municipal and industrial water and wastewater treatment.

Andisheh Zolal : Established in 2003, Andisheh Zolal is a sister company, responsible to carry out the entire engineering activities of assigned projects to Zolal Iran

Zolal Factory :  It mainly manufactures and assembles the equipment and vessels required for the projects.The factory is located in an area of 4000 square meters;