Machine Sazi Arak Company, a knowledge-based and specialized parent company, was founded in 1967 in an area of ​​134 hectares in Arak city in order to support the industrial needs of the country, construction of new industrial units and the production of all kinds of industrial equipment. By 1971, it was established as the first heavy industry in the country.

Now, MSA under the ownership of the Teachers Reserve Fund Institute, stands as the largest contracting and manufacturing entity in Iran, equipped with advanced engineering, production, and manufacturing capabilities with a rich history spanning over fifty years and a skilled workforce of around 2,000 experts organized into five production groups. MSA produces a wide range of industrial products and equipment and recognized as a qualified general contractor, holding top-tier certifications in various sectors, including oil and gas, industry and mining, energy, transportation, facilities, equipment, dams, power plants, water, steel, and cement.

Furthermore, it boasts reputable quality certifications for its integrated management system, enabling it to engineering, procurement, construction and commissioning of large-scale national and international projects in an EPC and turnkey basis.

The company is a leader in several fields, including:

Every aspect of product flow, from raw material production to final product delivery, is seamlessly integrated within this vast industrial complex. This integration has fostered unique and strategic flexibility in addressing the industrial needs of the country. As a result, MSA has pioneered the heavy industry in Iran, consistently serving as a catalyst for industrial growth.

Machine Sazi Arak Complex stands out as the sole industrial hub in the country, engaging in a diverse array of production activities and the implementation of industrial projects. This organization is structured with various production groups and executive departments. Currently, the company operates through five main production groups:

- Equipment Manufacturing Group
- Metallurgy Group
- Steam Boiler Group
- Bridge and Metal Structures Group
- Machinery and Assembly Group


Additionally, there is a Deputy Project Affairs section dedicated to managing specific projects through the EPC (Engineering, Procurement, and Construction) method, alongside five independent companies organized under the following names:

- MSA Engineering and Construction Company
- PaySaz Company
- Akam Oil and Gas Consortium Company
- MSA Hoopad Sanaat Company
- Kansar Company

Through years of effort and experience, the company has successfully modernized its production lines and built large workshops for machining and heavy metalworking, as well as for forging and casting development. By optimizing these facilities and leveraging the latest hardware and software, alongside skilled personnel and advanced technical knowledge, it has effectively addressed customer needs in response to market demands and conditions. With a strong foundation of experience and competitive advantages-such as a variety of flexible production machinery and processes-the company is recognized as a key player in the country's infrastructure and strategic industries. It has also successfully completed numerous projects that feature innovative designs and technologies, many of which are being implemented for the first time in the country.

This company specializes in a wide range of activities and products, including:
General contracting and the execution of EPC (Engineering, Procurement, and Construction) projects. Engineering, procurement, construction, and commissioning of various types of storage tanks, including spherical tanks and both mobile and stationary pressure vessels. MSA expertise extends to distillation towers, heat exchangers, air coolers, reactors, indirect gas heaters, and gas stations. Also provide mobile crude oil processing units, pressure valves, and wellhead equipment, as well as drilling rigs and various process pumps tailored for the oil and gas industries. Additionally, the company supplies cranes and hydro mechanical equipment for dams, fire tube and water tube boilers, combined cycle steam boilers, hot water boilers, heavy steel structures like bridges, and equipment for cement and steel plants. MSA work with various alloy steels, pressure flanges, industrial rings, and bushes, as well as axles and railway tier, steel balls, heavy machining, industrial furnaces, factory machinery, wind power plants, and equipment for mining and ports. Furthermore, MSA involved in waste incineration, reconstruction, modernization, and major repairs across various industries.