Machine Sazi Arak Co. (MSA) was founded in 1967 in an area of ​​134 hectares in the city of Arak in order to support the basic industries and meet the industrial needs of the country. It was established as the first heavy industry in Iran in 1971. With more than half a century of experience and excellent reputation in the field of industrial and infrastructure development of the country and its scientific, technical and specialized capabilities benefiting from about 2000 highly qualified and experienced specialists, advanced equipment and modern facilities in the form of five different manufacturing groups, five subsidiary companies and two support groups and also its University of Applied Science and Technology٫ MSA is the first and the largest industrial unit in the country, which based on its enhancing professionalism and universal management of the value network including financing, engineering, procurement, construction, installation and commissioning processes; providing support services related to large industrial complexes, factories and equipment in the form of EPC or EPCF; and providing reconstruction, modernization and  industries' overhauls٫ the company has the ability to carry out major national and international projects by producing 52 different types of products in the following areas:

·  Oil, Gas, Refining and Petrochemical Industries

·  Mineral and Steel Industries

·  Heating Facilities and Boilers

·  Alloy Casting and Forging

·  Power Plants and Renewable Energies 

·  Bridges٫ Steel Structures and Port Facilities

 The company's main activities and products are:

General contracting and EPC projects; engineering, procurement, construction and commissioning of various storage tanks; mobile and stationary pressure vessels; distillation towers; heat exchangers; air coolers,; spherical storage tanks; indirect heat exchangers; gas stations; mobile oil treating units; valves and wellhead equipment; drilling rigs; various process pumps for the oil and gas industry; cranes and hydro-mechanical equipment for dams; water tubes, fire tube and combined cycles steam boilers; bridges and heavy steel structures; all types of alloy steels; pressure flanges; industrial rings٫ axle and railways tires; steel bullets; heavy machining; industrial furnaces; machinery and manufacturing equipment; wind turbines; incinerators and shipunloader equipment.

Receiving the international certificate of quality system ISO 9001 from the DNV international company in the Netherlands for the first time in Iran٫ using credible international standards in the field of design and manufacturing of products, and also obtaining quality certificates from reputable international inspection institutes have resulted MSA to export its products to different countries around the world.

The manufacturing groups and subsidiaries of MSA are:

 Manufacturing groups:

- Equipment Manufacturing Group

- Metallurgy Manufacturing Group

- Steam Boiler Manufacturing Group

- Bridges and Steel Structure Manufacturing Group

- Machining and Assembly Group

Subsidiaries:

1. MSA Engineering and construction Company

2. Paysaz Company

3. West Sun Trade Company (Germany)

4. Akam Oil and Gas Company

5. Noor-e-Gheshm Oil Facilities Company