İSTON Istanbul Concrete Elements and Ready-Mixed Concrete Factories Corporation was established in 1986 by the Istanbul Metropolitan Municipality to provide high-quality and innovative solutions for the city's infrastructure and superstructure needs. İSTON products are widely preferred not only in Istanbul and various cities across Turkey but also in numerous countries worldwide through its export operations.

With a workforce of approximately 1,000 employees, İSTON operates across five locations: Tuzla, Hadımköy, Altunizade, Yenibosna, and its Headquarters in Esenler Giyimkent. As a testament to its strong market presence and financial performance, İSTON is also proudly listed in the Fortune 500.

With a diverse portfolio that includes urban furniture, playground equipment, concrete and reinforced concrete pipes, paving stones and borders, ready-mixed concrete, and prefabricated infrastructure elements, İSTON also offers architectural design, urban project implementation, contracting, and building inspection services.

All İSTON activities are carried out in strict compliance with Occupational Health and Safety Management System, Environmental Management and Quality Assurance System, Information Security Management System, and Quality Laboratory Management System. Committed to sustainability as a core corporate principle, İSTON's production facilities have been awarded the International Concrete Sustainability Council (CSC) Gold Certificate.

By investing in R&D and design, İSTON continues to introduce innovative products and technologies to urban life and the construction sector while actively engaging in national and international industry-academia collaborations.

İSTON develops products and designs that align with the future of cities, enhancing their aesthetic appeal, comfort, and quality. As one of the most comprehensive companies in the global construction sector, with a product range exceeding 2,000 items, İSTON continuously expands its areas of operation with new products and services.

As a subsidiary of the Istanbul Metropolitan Municipality, İSTON adopts a participatory and democratic management approach, addressing the evolving expectations and needs of urban dynamics through a holistic perspective. In line with the “Next-Generation Municipality” vision of the Istanbul Metropolitan Municipality, İSTON remains committed to making a difference in cities with its innovative and sustainable initiatives.

İSTON is a proud member of the Ready-Mixed Concrete Association and the Prefabricated Structures Association.

At İSTON, we take pride in our ongoing commitment to excellence and sustainability. Our Hadımköy Factory has been awarded the Platinum-level Certificate by the International Concrete Sustainability Council (CSC), a prestigious recognition of our dedication to environmental responsibility.

Additionally, we were honored as a "Distinction Winner" at the 66th International Work Safety Awards organized by the British Safety Council, highlighting our outstanding achievements in workplace safety.

Finally, this year, we were also awarded the “Equality for Woman at Work” Certificate, reinforcing our commitment to gender equality and inclusivity in the workplace.