Founded in 1954 by İshak Alaton and Üzeyir Garih, Alarko Holding became a holding company in 1973 and went public in 1974. With a history spanning more than 65 years, it operates in energy, contracting, industry, tourism, real estate, and water technologies. With 7,000 employees and strong international partnerships, it is one of Turkey's leading industrial organizations. The Toshiba Air Conditioning online store runs on T-Soft's e-commerce infrastructure.

Founded in 1983 under the leadership of Nurettin Eroğlu, Eroğlu Holding operates on a global scale in the textile, retail, and real estate sectors. Continuing to grow with 15,000 employees across 38 countries, the group stands out for its innovative approach and commitment to quality production. The Interia Design Store online store runs on T-Soft's e-commerce infrastructure.

One of Turkey's long-established industrial groups, Sanko Holding operates in 11 sectors with 14,000 employees. The group is represented by four of its companies among Turkey's 500 largest industrial enterprises. Maisonette is one of the group's brands producing home textiles. The Maisonette online store runs on T-Soft's e-commerce infrastructure.

Founded in 1952 with operations in the construction sector, Albayrak Group has continued to grow over the years across many sectors including logistics, industry, media, energy, real estate, and waste management. Birlikte, the online store where sales and subscriptions for books and magazines from the group's publishing divisions are handled, runs on T-Soft software.

As Turkey's largest business group, Koç Holding is one of the driving forces of the national economy with its broad sector portfolio, strong export performance, and international achievements. It continues to strengthen its global position through its success abroad. The group's Arter and Pet Amerikan online stores run on T-Soft's e-commerce infrastructure.

Founded in 2000, Esas is Turkey's largest family investment company and is funded by first- and second-generation family members of Şevket Sabancı, one of the five founding members of Sabancı Holding, one of Turkey's leading conglomerates. The group's Bonservis online store runs on T-Soft software.

One of Turkey's leading investment groups, Demirören Holding operates in a range of sectors including media, energy, education, and retail. With strong publishing organizations under its umbrella, the group also stands out for its investments in digital transformation. The group's Demirören Yayınları online store runs on T-Soft's e-commerce infrastructure.