Erman Yerdelen

Dogus Holding AS engages in the provision of investment and management services. It manages companies operating in the construction, automotive, media, tourism, finance, real estate, energy, and entertainment sectors. The company was founded by Ayhan Sahenk in 1951 and is headquartered in Istanbul, Turkey.

TÜVTURK provides vehicle testing and inspection services. It offers periodical motor vehicle inspection for traffic and vehicle safety purposes. The company was founded in 2005 and is headquartered in Maslak, Turkey.

TÜVTURK Istanbul Tasit Muayene Istasyonlari Isletim AS engages in plant and vehicle inspection stations. Its services include periodical vehicle inspection, inspection after modification, mandatory inspection, roadworthiness inspection, and exhaust emission testing. The company is headquartered in Sariyer, Turkey.

Part of Erste Group Bank AG, Dogus Marina Hoteli d.o.o. is a Croatian company that owns and operates hotels. The company is based in Šibenik, Croatia. The company was founded in 1951 by Ayhan Sahenk. The CEO is Ferit Faik Sahenk. Dogus Marina Hoteli was acquired by Villa Dubrovnik dd from Dogus Holding AS on August 16, 2021 for $30.77 million.

Part of Dogus Holding AS, Dogus Yayin Grubu AS is a Turkish company that provides television broadcasting and print media production services. The company is based in Istanbul, Turkey and was founded in 1999.