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.