| Title | Istanbul Electronic Telecommunication and Insfacture Inc. |
| Centre Address | Aytekin Kotil Cad. No:8 Mecidiyekoy – Sisli / Istanbul / TURKEY |
| Tax Office | Mecidiyeköy |
| Tax Number | 4810575927 |
| Mersis Number | 0481 0575 9270 0001 |
| Trade Registration Number | 839168 |
| Affiliated Chamber of Commerce | Istanbul Chamber Of Commerce |
| Central Telephone | 0212 401 38 50 |
| Centre Fax | 0212 401 38 51 |
| Web Address | www.isttelkom.istanbul |
| [email protected] [email protected] |
ISTTELKOM is a municipality economic entity owned by a joint-stock company owned by three major IBB affiliates. Below is the title written by the founders of this master agreement to be managed in accordance with the provisions of TCC numbered 6102, held on 18.10.2012 by the organization in accordance with the provisions of the articles of association of ISTTELKOM Istanbul Elektronik Haberleşme ve Altyapı Hizmetleri Sanayi ve Ticaret Anonim Şirketi , the registration number of which is 35484 .
İSTTELKOM is a partnership of legal entities with the following names and shares.
| Shareholders | Share Ratio (%) |
| BELBİM İstanbul Elektronik Para ve Ödeme Hizmetleri AŞ | 35 |
| İSTANBUL ENERJİ Sanayi ve Ticaret AŞ | 35 |
| İSBAK İstanbul Bilişim ve Akıllı Kent Teknolojileri AŞ | 30 |
| TOTAL | 100 |