AĞAÇ A.Ş.
The Istanbul Tree and Landscape Corporation

BELBİM A.Ş.
The Municipal Data Processing Corporation Of Istanbul

BEL-PET A.Ş.
Petroleum and Petroleum Products Company

BELTUR A.Ş.
Büyük İstanbul Turizm ve Sağlık Yatırımları İşl. Ve Tic. A.Ş.

BİMTAŞ A.Ş.
Istanbul Engineering and Consultancy Services Cooperation

HALK EKMEK A.Ş.
The Istanbul “People’s Bread” Flour and Flour Products Corporation

HAMİDİYE A.Ş.
Hamidiye Spring Water Corporation

İDO A.Ş.
Istanbul Sea Buses Corporation

İGDAŞ A.Ş.
Istanbul Gas Distribution Corporation

İSBAK A.Ş.
Istanbul Transportation Maintenance Corporation

İSFALT A.Ş.
Istanbul Asphalt Corporation

İSTAÇ A.Ş.
The Istanbul Environmental Protection and Waste Processing Corporation

İSTON A.Ş.
Istanbul Concrete Production Corporation

KİPTAŞ A.Ş.
Istanbul Public Housing Corporation

KULTUR A.Ş.
Istanbul Cultural and Artistic Products Corporation

SAĞLIK A.Ş.
The Istanbul Health Enterprises Corporation

SPOR A.Ş.
Istanbul Sports Activities Company

ULAŞIM A.Ş.
Istanbul Transport Corporation