The largest Internet service provider in Turkey with around 6 million subscribers, offering wifi, music streaming, 3G technology, security and internet television. Headquartered at Salih Tozan Sok. 16, Sisli, 34394 Istanbul.
Turkeys second largest mobile phone operator, with 16 million subscribers. Offering smart phones and tablets, internet packages, and a range of services and tarifs. Headquartered at Eski Buyukdere Cad. 251, 34398 Istanbul.