1969
• Initiation of first construction activities.
1987
• Foundation of Cengiz Construction Industry & Trade Co.
• Our first contract “Yesilkoy-Yesilyurt Coast Rehabilitation and Road Construction”.
1989
• Initiation of the first road project “Çamlıhemşin Ayder Road”.
1990
• Initiation of the first telecom infrastructure project “İzmir City Telephone Network Infrastructure”.
1991
• Initiation of Black Sea Coastal Road Project.
1993
• Initiation of the first harbour project “Hopa Harbour”.
1995
• Alanya Yacht Harbour construction started.
1996
• The first Cengiz Head Office Building construction started in Altunizade İstanbul.
• Initiation of the first water transmission project. “İkitelli Potable Water Main Distribution System”..
1997
• Initiation of the first metro project “Taksim-4.Levent Subway”.
• Le Jardin Resort Hotel construction started.
• Transfer of residence to Cengiz Head Office Building in Altunizade.
1998
• Start of the civil works of Atasu Dam.
1999
• Completion of the Infrastructure Work of Intracity Telephone Network in Aydın Province.
2000
• Start of the civil works of Ankara – Pozantı Highway.
• Subway line between Taksim – 4 Levent put into service.
2001
• Start of the civil works of Ereğli Demir Çelik Port.
• Completion of the Infrastructure work of Intracity Telephone Network in Antalya Province.
2002
• Initiation of Cengiz Maslak Plaza construction works.
• Start of the civil works of Giresun Port.
• Start of the civil works of Yakakent – Gerze Road.
2003
• Initiation of the first international dam project “Vahxir Dam ve HEPP – Azerbaijan”..
• Hopa-Kemalpaşa-Sarp Road put into service.
• Completion of Alanya Marina Project.
2004
• Launch of Ankara Office of Cengiz İnşaat.
• Completion of Ereğli Demir Çelik Port Project.
2005
• Initiation of the first International airport project “Hawler Airport-Erbil Iraq”.
• Start-up of the first railway project “Ankara-Eskişehir Railway”.
• Completion of Vahxir Dam and HEPP project.
• Completion of Giresun Port Project.
• Completion of the construction of Turkey’s first 7-stars hotel “Sungate Port Royal Resort Hotel”.
• Launch of Iraq Branch of Cengiz İnşaat.
2006
• Initiation of the first international motorway project “Sofia-Ljulin Motorway”.
• Company ranked among ENR TOP 225 International Contractors.
2007
• Initiation of Turkey’s Mega Dam Project “Dam of Ilısu”.
• Start of the civil works of Takhtakopru-Ceyranbatan Irrigation Canal. Azerbaijan.
• Start of the civil works of Kalehan Enerji Beyhan I Dam and HEPP.
2008
• Initiation of Ankara-İstanbul High Speed Train Project.
• Start of the civil works of Erbil-Altunkopri Road. Northern Iraq.
• Start of the civil works of Semkircay Dam and HEPP. Azerbaijan.
• Start of the civil works of Ankara Hospital Building.
2009
• Start of the civil works of Enerjisa Menge Dam and HEPP.
• Start-up of Ankara-Sivas Railway Project.
2010
• Completion of the civil works of Erbil-Altunkopri Road.
• Çayeli-Ardeşen-Hopa Road put into service.
• Ankara-Pozantı Motorway put into service.
• Initiation of flights to Hawler International Airport.
• Start of the civil works of Aktobe-Martuk Road. Kazakhstan.
2011
• Launch of Moscow Branch of Cengiz İnşaat.
• Launch of Kazakhstan Branch of Cengiz İnşaat.
• Sofia Ljulin Motorway put into service.
• Initiation of the airport project on sea embankment, which is the first application in Turkey “Ordu – Giresun Airport”.
• Start of the civil works of Trabzon-Aşkale Road and Tunnel.
• Start of the civil works of Carec Lot II Access Road. Kazakhstan.
• Start of the civil works of Kalehan Enerji Upper Kaleköy Dam and HEPP.
2012
• Launch of Bosnia Herzegovina Branch of Cengiz İnşaat.
• Completion of Enerjisa Menge Dam and HEPP Project.
• Start of the civil works of Tarcin-Suhodol-Lepenica-Vlakovo Motorway. Bosnia-Herzegovina.
• Start of the civil works of Ilgaz Tunnel.
• Start-up of Palu-Genç-Muş Railway Project.
• Start of the civil works of Cengiz Ataşehir Plaza.
2013
• Announcement of ENR List of Top 250 International Contractors. The Company ranked 127th.
• Istanbul New Airport BOT Project Tender was awarded.
• Start of the civil works of Köstere – Gümüşhane Passage Road.
• Start of the civil works of Dohuk International Airport. Northern Iraq.
2014
• Vlakovo-Lepenica Highway Lot 3, Bosnia-Herzegovina, put into service
• Suhodol-Tarçın Highway Lot 1, Bosnia-Herzegovina, put into service
• Lepenica-Suhodol Highway Lot 2, Bosnia-Herzegovina, put into service
• Yakakent-Gerze Motorwat, Sinop, put into service
2015
• Ordu-Giresun Airport put into service
• Güzelceçay Dikmen Motorway, Sinop, put into service
• Otar-Blagoveshchenka Motorway Lot 2, Kazakhstan, put into service
• Ankara-İstanbul High Speed Train, 125 km, put into service
• Kırıkkale-Yerköy-Kesim 2 Railway, 80 km, put into service
• Şemkirçay Dam and HPP Project, Azerbaycan, completed
• Beyhan I Dam and HPP Project, Elazığ, completed.
2016
• Ilgaz Tunnel, Kastamonu-Çankırı, put into service
2017
• Aktau-Beineu Motorway Lot 1, Kazakhstan, put into service
• Aktau-Beineu Motorway Lot 2, Kazakhstan, put into service
• İstanbul-Şile-Ağva Motorway, İstanbul, put into service
• Genç-Servi Motorway, Bingöl, put into service
• Ankara – Sivas Railway, Kırıkkale, put into service
• Yukarı Kaleköy Dam ve HPP Project, Bingöl, completed