1969
1987
1995
1996
1997
1998
1999
2000
2001
2002
2003
2004
2005
2006
2007
2008
2009
2010
2011
2012
2014
2013
2015

1969

Start of construction operations.

1987

​Cengiz İnşaat established.

1995

First marina project agreement. (Alanya Marina)

1996

Construction of Cengiz Administrative Building starts at Altunizade Istanbul.
First water transfer project started. “İkitelli Drinking Water Main Distribution System”.

1997

First metro project started. “Taksim-4. Levent Metro”.​
Construction of Le Jardin Resort Hotel started.
Cengiz Administrative Building in service at Altunizade.​

1998

Cengizler Insurance Company established.
Construction of Atasu Dam started.

1999

Aydın Provincial Telephone Network Infrastructure completed.

2000

Cengiz Enerji Sanayi ve Ticaret A.Ş. established.​
Construction of Ankara-Pozantı Highway starts.
Taksim-4. Levent Metro in service.​

2001

Construction of Ereğli Demir Çelik Port starts.
Antalya Provincial Telephone Network Infrastructure completed.​

2002

​​ Construction of Cengiz Maslak Plaza starts.
Construction of Yakakent-Gerze Highway starts.
Construction of Giresun Port starts.

2003

Samsun 132 MW Combined Cycle Power Plant in service.
In cooperation with EUAS, Samsun II Mobile Plant begins operation.
First international dam project starts. “Vayxir Dam & Hydroelectric Power Plant – Azerbaijan”.
Hopa-Kemalpaşa-Sarp Highway in service.
Alanya Marina Project completed.​

2004

Aviation operations start.
Cengiz İnşaat Ankara Office established.
Ereğli Demir Çelik Port Project completed.
Eti Bakır A.Ş. acquired by the Holding within the scope of privatization. ( Eti Bakır A.Ş. Samsun Smelting Plant )
Natural gas distribution operations start. (Samgaz Natural Gas Distribution – Samsun)
Cengiz Mobilya Antalya Branch established.​

2005

First international airport project starts. (Arbil “Hawler” International Airport)
Eti Alüminyum A.Ş. was acquired by the Holding within the scope of privatization. ( Eti Alüminyum A.Ş. Seydişehir )
Sungate Port Royal Resort Hotel in service.
Ankara – İstanbul High-speed Railway project starts.
Natural gas distribution operations start.
Natural gas distribution in Samsun province starts. – Samgaz.
First railway project starts. “Ankara-Eskişehir Railway”.
Vahxir Dam ve Hydroelectric Power Plant Project is completed.
NUH Enerji’s 59 MW Combined Cycle Power Plant completed.
Giresun Port Project completed.
Cengiz İnşaat Iraq Branch established.
Eti Bakır A.Ş. Samsun Smelting Facility and Küre Mines are in operation.

2006

First international motorway project starts. (Sofia – Ljulin Highway)
The Company is in ENR Best 225 International Contractors List for the first time.
The Murgul site is brought into Eti Bakır A.Ş. within the scope of privatization.

2007

Turkey’s Mega-Dam Project starts. (Ilısu Dam & Hydroelectric Power Plant)
Construction of Tahtaköprü-Ceyranbatan Irrigation Channel starts. – Azerbaijan.
Construction of Kalehan Enerji Beyhan I Dam and Hydroelectric Power Plant starts.
Natural gas distribution in Seydişehir and Çumra districts of Konya starts. – Selçukgaz.

2008

Ankara-Istanbul High-Speed Railway project starts.
Construction of Arbil-Altunkopri Highway starts. Northern Iraq.
• Construction of Shamkirchay Dam & Hydroelectric Power Plant starts. Azerbaijan.
Construction of Ankara Hospital Building starts.
• International urban infrastructure project starts in Libya.

2009

Electricity distribution operations start. (Meram Elektrik Dağıtım)
MERAM Elektrik Dağıtım A.Ş. acquired.
Construction of Enerjisa Menge Dam & Hydroelectric Power Plant starts.
Ankara-Sivas Railway Project starts.

2010

•​ 240 MW natural gas combined cycle power plant goes into operation in Samsun.
Energy sales to individual consumers starts.
Eti Alüminyum’s New Aluminum Foundry in service.
Construction of Arbil-Altunkopri Highway completed.
Çayeli-Ardeşen-Hopa Highway in service.
• Ankara-Pozantı Highway in service.
• Flights to Hawler International Airport start.
• Construction of Aktobe-Martuk Highway starts. Kazakhstan.
Eti Bakır Murgul 20 MW Hydroelectric Power Plant in service.
Wholesale and retail sales of electric start.
ÇAMLIBEL Elektrik Dağıtım A.Ş. acquired.
ULUDAĞ Elektrik Dağıtım A.Ş. acquired.

2011

Cengiz İnşaat Moscow office established.
Cengiz İnşaat Kazakhstan office established.
Sofia Ljulin Highway in service.
Work starts on Turkey’s first and only airport built on an artificial island.
  (Ordu-Giresun Airport)
Construction of Trabzon-Aşkale Highway and Tunnel starts.
Construction of Carec Lot II Transportation Road starts. Kazakhstan.
Construction of Kalehan Enerji Yukarı Kaleköy Dam and Hydroelectric Power Plant starts.
Cathode copper production and sales start with Eti Bakır A.Ş.’s new electrolysis facility.
Mazıdağı Phosphate Business is acquired within the scope of privatization.

2012

Cengiz İnşaat Bosnia-Herzegovina office is established.
Enerjisa Menge Dam & Hydroelectric Power Plant Project is completed.
Construction of Suhodol-Lepenica-Vlakovo Highway starts. Bosnia-Herzegovina.
Construction of Ilgaz Tunnel starts.
Palu-Genç-Muş Railway Project starts.
Construction of Samsun 600 MW Combined Cycle Power Plant starts.
Construction of Eti Alüminyum Seydişehir 13 MW Cogeneration Power Plant starts.
Construction of Cengiz Ataşehir Plaza starts.​

2014

The project for Istanbul’s New Airport (BOT) starts.

2013

ENR Best 250 International Contractors List issued. We are at number 127.
Construction of CENAL Karabiga 1320 MW Power Plant Fueled by Imported Coal starts.
Renovation starts at Eti Alüminyum A.Ş.’s new aluminum electrolysis facility.
The tender for construction of Istanbul’s New Airport (BOT) and 25-year operating rights are obtained.
Construction of Köstere – Gümüşhane Transfer Road starts.
Construction of Dohuk International Airport starts. Northern Iraq.
Acquisition of BOĞAZİÇİ Elektrik Dağıtım is completed.
Acquisition of AKDENİZ Elektrik Dağıtım is completed.

2015

Ankara-Istanbul High-Speed Railway project completed.
610 MW Samsun Natural Gas Combined Cycle Plant goes into operation.
Beyhan 1 Hydroelectric Power Plant goes into operation.
Ordu-Giresun Airport opens.