References

TELECOMMUNICATION

AVEA Communication Services Inc. Co.

VODAFONE Telecommunication Inc. Co.

TURKCELL Communication Services Inc. Co.

MOTOROLA Telecommunication Inc. Co.

HUAWEI Telecommunication Limited Co.

ZTE Telecommunication Inc. Co.

NOKIA SIEMENS Networks Inc. Co.

Türk Telekom Inc. Co.

Karel Inc. Co.

ENERGY

AKFEN HOLDING

GAMA HOLDING

AYTEMİZ GURUP

BİLGİN ENERGY Inc. Co.

ÖZDOĞAN GROUP

ÖZALTIN Inc. Co.

KARADENİZ HOLDING

ÇALIK ENERGY 

ESİNTİ ENERGY