Designing, manufactruing and marketing silos


More than 35 years • 15,000 projects • 50 million m³ • 150 countries

Symaga’s stance as a major reliable manufacturer is founded on the number of silo installations delivered across 150 countries, with 55 million of cubic-meters of storage built, and 15,000 projects over more than 35 years. Our 150-strong team is devoted to design, manufacture and deliver storage solutions ready to be integrated in your projects.

With a team focused on providing the best support to each project, and state-of-the-art manufacturing facilities, SYMAGA is your best partner for storage.


For all grain and
seeds type storage

Symaga Silos is a Spanish family-owned business with an international scope, specialized in designing, manufacturing and marketing of galvanized steel silos available for different industries such as breweries, animal feed, port facilities, flourmill, ethanol, drying, flourmills, and storage of raw materials for the plastic industry and biofuels.


Spanish family-owned business

Symaga is multinational family owned company able to provide technical response to the requirements of each individual project, after-sales services and able to speak in different languages as the company export rate is superior to 90%. The company is dynamic, skilled, and perfect for a long-term relationship. The business has been growing consistently in both sales and size in the last years.




logo-symaga logo-growket logo-agravid

Symaga Group. Structure

Alfonso Garrido, basing the business in the manufacturing and marketing of farm silos and livestock equipment, founded Symaga in 1985. Symaga divided its portfolio into several business lines: Symaga Silos specialized in designing, manufacturing and marketing galvanized steel silos for storage; Growket, one line focused on manufacturing feed silo and auger and chain transport system; and a third one specialized in manufacturing agricultural equipment such as water tanks and vineyard equipment named Agravid. Symaga Group invested huge productive and human resources in order to entitle these divisions as corporative unit.


Satisfy storage needs globally for the agro-industry, with highest quality standards at competitive prices.


Become in the largest manufacturer worldwide of storage solutions.








Symaga has with a fully automated factory with computer numerical control and cutting-edge technology. In order to reach maximum quality standards.
Facilities are located in La Mancha. Manufacturing plant and logistic area occupy up to 60,000 m² in the total of 100,000 m² building area, in a total of 400,000 m² family owned land on which it resides. It also counts with a technical and commercial office in Madrid from 2007.

Experience of more than 35 years

Backed by an experience of more than 35 years, the company has exceeded 15,000 installations, building more than 55 million m³ of grain storage in more than 150 countries. Symaga ensures the optimal execution of any project.

Production capacity: 30 robots, 80,000 tons. of steel per year, CNC machinery.

The constant investment in updated technology has achieved the total automation, reaching the maximum quality standard. Symaga obtained CE certificate, becoming the first silo manufacturer obtaining it. Moreover, the integral traceability system has its own quality control system, allowing us to control all manufactured product at real-time.

World leaders, reliability and quality

Our products are renowned for their durability and easy-assemble. Silos are manufactured in corrugated galvanized steel, with a 600 gr/m² coating in cylinder, and zinc-magnesium covering in the roof, ensuring a double service life more than other suppliers do.
Raw material used in the process is certified, with maximum quality, and European origin.

Research & Development

Symaga has constantly invested in R & D. This innovating work is developed in conjunction with clients and suppliers, thereby improving our products and services and thus giving better value and efficiency to our customers.

More than 150 employees

Our Technical and Engineering Department, and After-sales Service Department, are always available for our customers: since the initial layout configuration until the assembly finalization.
Moreover, our multi-lingual Commercial Department facilitates communication.

More than 12,000 Tons of galvanized steel in stock

Symaga features more than 12,000 tons of galvanized steel of average standing stock, giving us the ability to deliver on the agreed date.