Maintenance & repair of the buildings and Mechanical and Electrical utilities of Saderat Bank, IDB and Azadi Parsian Hotel.
Maintenance of mechanical, electrical installations, protection of gas pipeline, network and telephone line operator of Iran University of Science and Technology
Maintenance and repair of the installations and buildings of the cultural houses of the north and west of Tehran
Central Bank of the Islamic Republic of Iran ,operation, maintenance and repair of buildings and utilities.
Maintenance and repair of civil, elect, mechanical equipment in Kermanshah and Khark Petrochemical Co.
Operation, maintenance and repair of mechanical, electrical and communication utilities and systems of RIPI (Research institute of Petroleum of Iran)